HV480 Series Frequency Inverter. User Manual (Jun 2021 V0.2 version) - page 5
Chapter V Description of parameters
FC - 38 Simple PLC section 10 operation time
0.0s(h)～6500.0s(h) [0.0s(h)]
FC - 39 Simple PLC
10th acceleration and deceleration
0～3 [0]
time
FC - 40 Simple PLC section
11 operating time
0.0s(h)～6500.0s(h) [0.0s(h)]
FC - 41 Simple PLC section
11 acceleration and
0～3 [0]
deceleration time
FC - 42 Simple PLC section
12 operation time
0.0s(h)～6500.0s(h) [0.0s(h)]
FC - 43 Simple PLC section
12 acceleration and
0～3 [0]
deceleration time
FC - 44 Simple PLC section
13 operating time
0.0s(h)～6500.0s(h) [0.0s(h)]
FC - 45 Simple PLC section
13 acceleration and
0～3 [0]
deceleration time
FC - 46 Simple PLC section
14 operating time
0.0s(h)～6500.0s(h) [0.0s(h)]
FC - 47 Simple PLC section
14 acceleration and
0～3 [0]
deceleration time
FC - 48 Simple PLC section
15 operating time
0.0s(h)～6500.0s(h) [0.0s(h)]
FC - 49 Simple PLC section
15 acceleration and
0～3 [0]
deceleration time
FC - 50 Simple PLC running time unit
0～1 [0]
0: S (seconds)
1: h (hours)
FC - 51 multi-segment instruction 0 given mode
0～6 [0]
0: Given function code FC - 00
1: AI1
2: AI2
3: AI3
4: X5 pulse input.
5: PID.
6: Given the preset frequency (F0 - 09), up / down can be modified.
- 119 -
Chapter V Description of parameters
FD Group communication parameters
Please refer to appendix a: description of communication parameters of FD group.
FE Group user-defined function code
This group function code is a user-defined parameter group.
The user can select the required parameters from all HV480 function codes and summarize them to the Fe
group as user-customized parameters.
Number to facilitate viewing and changing operations The Fe group provides up to 30 user-defined parameters,
and the displayed value of the Fe group parameter is f 0.00, which indicates the user function code is empty.
When entering the user-defined parameter mode, the display function codes are defined by FE-00～FE-31. The
order is the same as that of the FE group function codes. If F0 - 00, it will be skipped.
FF Group control optimization parameters
FF - 04 wave-by-wave current limiting enable
0～1 [0]
0: not enabled.
1: enabling wave-by-wave current limiting.
By enabling the wave-by-wave current limiting function, the over-current fault of the frequency inverter can be
minimized and the frequency inverter can be guaranteed to run uninterruptedly.
FF - 06 uder voltage point setting
60%～140% [100.0%]
Voltage value of frequency inverter under voltage fault LV
FF - 09 Over voltage point setting
200.0V～2200.0V [820.0V]
Note: the factory value is also the upper limit value of the internal Over voltage protection of the frequency
inverter. This parameter setting will only take effect if the FF - 09 setting value is less than the factory value. If it is
higher than the factory value, the factory value shall prevail.
E0 Group fault record
E0-00 first failure type
0～99 [0]
E0-01 second failure type
0～99 [0]
E0-02 third ( most recent ) fault type
0～99 [0]
E0-03 frequency at third failure
0.00～500.00 [0.00HZ]
- 120 -
Chapter V Description of parameters
E0 - 04 current at third fault
0.00～500.00 [0.00A]
E0 - 05 bus voltage at the third fault
0.0～2000.0 [0.0V]
E0 - 08 frequency inverter status at third failure
0～65535 [0]
E0 - 09 power-on time for third failure
0～65535 [0]
E0 - 10 run time at third failure
0～65535 [0]
E0 - 13 frequency at second failure
0.00～500.00 [0.00HZ]
E0 - 14 current at second failure
0.00～500.00 [0.00A]
E0 - 15 bus voltage at second failure
0.0～2000.0 [0.0V]
E0 - 18 frequency inverter status at second failure
0～65535 [0]
E0 - 19 power-on time for second failure
0～65535 [0]
E0 - 20 run time at second failure
0～65535 [0]
E0 - 23 frequency at first failure
0.00～500.00 [0.00HZ]
E0 - 24 current at first failure
0.00～500.00 [0.00A]
E0 - 25 bus voltage at first failure
0.0～2000.0 [0.0V]
E0 - 28 frequency inverter status at first failure
0～65535 [0]
E0 - 29 power-on time for first failure
0～65535 [0]
E0 - 30 run time at first failure
0～65535 [0]
- 121 -
Chapter V Description of parameters
P2 Group AIA correction
P2 - 00 A I1 measured voltage 1
-10.000V～10.000V [2.000V]
P2 - 01 A I1 shows voltage 1
-10.000V～10.000V [2.000V]
P2 - 02 A I1 measured voltage 2
-10.000V～10.000V [8.000V]
P2 - 03 AI1 shows voltage 2
-10.000V～10.000V [8.000V]
P2 - 04 AI2 measured voltage 1
-10.000V～10.000V [2.000V]
P2 - 05 AI2 shows voltage 1
-10.000V～10.000V [2.000V]
P2 - 06 AI2 measured voltage 2
-10.000V～10.000V [8.000V]
P2 - 07 AI2 shows voltage 2
-10.000V～10.000V [8.000V]
P2 - 08 AI3 measured voltage 1
-10.000V～10.000V [2.000V]
P2 - 09 AI3 shows voltage 1
-10.000V～10.000V [2.000V]
P2 - 10 AI3 measured voltage 2
-10.000V～10.000V [8.000V]
P2 - 11 AI3 shows voltage 2
-10.000V～10.000V [8.000V]
The set of function codes is used to correct the analog quantity input AI to eliminate the influence of zero offset
and gain at the AI input.
The set of functional parameters has been corrected at the factory. When the factory value is restored, it will be
restored to the factory corrected value.Generally, no correction is required at the application site.
Measured voltage refers to the actual voltage measured by measuring instruments such as multimeter.
Display voltage refers to the voltage display value sampled by the frequency converter. See u0 group ai
pre-correction voltages (U0 - 21, U0 - 22, U0 - 23) for display.
During correction, two voltage values are input to each AI input port, and the values measured by the multimeter
and the values read by the U0 group are input into the above function codes accurately, then the frequency converter
will automatically correct the zero offset and gain of AI.
For the situation where the voltage given does not match the actual sample voltage of the frequency converter, a
field correction method can be adopted so that the sampling value of the frequency convert is consistent with the
expected given value.
- 122 -
Chapter V Description of parameters
Given AI1 voltage signal (2v or so)
Given AI2 voltage signal (2v or so)
Given AI3 voltage signal (2v or so)
Measured actual measured AI1
Measured actual measured AI2
Measured actual measured AI3
voltage value is recorded as v1
voltage value is recorded as v1
voltage value is recorded as v1
View U0 - 21 display value record as
View U0 - 22 display value record as
View U0 - 23 display value record as
u1
u1
u1
Given AI1 voltage signal (8v or so)
Given AI2 voltage signal (8v or so)
Given AI3 voltage signal (8v or so)
Measured actual measured AI1
Measured actual measured AI2
Measured actual measured AI3
voltage value is recorded as v2
voltage value is recorded as v2
voltage value is recorded as v2
View U0 - 21 display value record as
View U0 - 22 display value record as
View U0 - 23 display value record as
U2
U2
U2
V1 input P2 - 00
V1 input P2 - 04
V1 input P2 - 08
u1 input P2 - 01
u1 input P2 - 05
u1 input P2 - 09
v2 input P2 - 02
v2 input P2 - 06
v2 input P2 - 10
u2 input P2 - 03
u2 input P2 - 07
u2 input P2 - 11
AI1 calibration completed
AI2 calibration completed
AI3 calibration completed
Figure 5 - 34 AI calibration method diagram
- 123 -
Chapter V Description of parameters
U0 Group monitoring parameter group
The U0 parameter group is used to monitor the operation status information of the frequency inverter.
Customers can check it through the panel to facilitate on-site commissioning. They can also read the parameter
group values through communication for monitoring by the upper computer. The communication address is 0x7000
~
0x7044.
U0-00
Running frequency
Indication range
0.00：500.00Hz
U0-01
Running frequency
Display the absolute values of the theoretical operating frequency and the set frequency of the frequency inverter.
See U0 - 19 for actual output frequency of frequency inverter.
U0-02
Busbar voltage
Indication range
0.0V～3000.0V
Display the inverter bus voltage value.
U0-03
Output voltage
Indication range
0V～1140V
Display the output voltage value of the frequency inverter during operation.
0.00A～655.35A
(frequency inverter power < = 55kw )
U0-04
Output current
Indication range
0.0A～6553.5A
0.00A～6553.5A
(frequency inverter power > 55kw )
Display the output current value of the frequency inverter during operation.
U0-05
Output power
Indication range
0～32767
Display the output power value of the frequency inverter during operation.
U0-06
Output torque
Indication range
-200.0%
- 200.0%
Display the output torque value of the frequency inverter during operation.
U0-07
X terminal input status
Indication range
0～32767
Display the current X terminal input status value. After being converted into binary data, each bit corresponds to
X input signal, a value of 1 indicates that the input is a high level signal, and a value of 0 indicates that the input is a
low level signal. The correspondence between each bit and the input terminal is as follows:
Bit0
Bit1
Bit2
Bit3
X1
X2
X3
X4
Bit4
Bit5
Bit6
X5
X6
X7
- 124 -
Chapter V Description of parameters
U0-08
Do output state
Indication range
0～1023
Display the current DO terminal output status value. After being converted into binary data, each bit corresponds
to a DO signal, indicating the output high level for 1 and the output low level for 0. The correspondence between
each bit and the output terminal is as follows:
Bit1
Bit3
Relay 1
D01
Bit4
D02
0.00V～10.57V
U0-10
AI2 voltage ( v ) / current ( mA )
Indication range
0.00mA～20.00mA
U0-14
Load speed display
Indication range
0～65535
U0-15
PID setting
Indication range
0～65535
U0-16
PID feedback
Indication range
0～65535
Display the PID setting value and feedback value. The value format is as follows:
PID setting = PID setting (percentage) * FA - 04
PID feedback = PID feedback (percentage) * FA - 04.
U0-18
PULSE input pulse frequency
Indication range
0.00kHz～100.00KHz
Display X5 high speed pulse sampling frequency, minimum unit is 0.01 KHz.
U0-19
Feedback speed
Indication range
-320.00Hz～320.00Hz
U0-20
Remaining operating time
Indication range
0.0～6500.0 minutes
U0-21
AI1 pre-correction voltage
Indication range
0.000V～10.570V
AI2 voltage / current before
0.000V～10.570V
U0-22
Indication range
correction
0.000mA～20.000mA
U0-23
AI3 voltage before correction
Indication range
-10.570V～10.570V
Display the actual value of the analog input sample voltage / current.
The voltage / current actually used has been linearly corrected so that the sampled voltage / current is in line with the
actual input voltage / electricityThe flow deviation is smaller.
See U0 - 09, U0 - 10, U0 - 11 for the correction voltage / current actually used, and P3 group for the correction
method.
- 125 -
Chapter V Description of parameters
U0-24
Linear velocity
Indication range
0 ~ 65535 m / min
U0-27
PULSE input pulse frequency
Indication range
0:65535Hz
Display X5 high speed pulse sampling frequency in 1hz. It is the same data as u0 - 18, only showing different units.
U0-28
communication settings value
Indication range
communication settings value
Display data written through address 0x1000.
U0-30
Main frequency X display
Indication range
0.00Hz～500.00Hz
Display the main frequency source X frequency setting.
U0-31
Auxiliary frequency Y display
Indication range
0.00Hz～500.00Hz
Display the auxiliary frequency Y frequency setting.
U0-35
Target torque
Indication range
200.0%
- 200.0%
Display the current torque upper limit setting.
U0-37
Power factor angle
Indication range
-
Display the current operating power factor angle.
U0-39
VF separates target voltage
Indication range
0v ~ rated voltage of motor
U0-40
VF separates output voltage
Indication range
0v ~ rated voltage of motor
Display the target output voltage and the current actual output voltage when operating in the VF separation state.
VF separation is described in F3 group.
X7 X5 X3 X1
light for valid
U0-41
X input status visual display
Indication range
extinction is not
invalid
X6 X4 X2
- 126 -
Chapter V Description of parameters
U0-42
Do output status visual display
Indication range
-
U0-59
Set frequency
Indication range
-100.00%
- 100.00%
U0-60
Running frequency
Indication range
-100.00%
- 100.00%
Display the current set frequency and operating frequency. 100.00 % corresponds to the maximum frequency of
the frequency inverter (F0 - 16).
Operating state of frequency
U0-61
Indication range
0～65535
inverter
Display the frequency inverter operation status information.
The data definition format is as follows:
Bit0
0: shutdown;
1: forward rotation;
2: reversal
Bit1
U0-61
Bit2
0: constant speed;
1: accelerating;
2: slow down
Bit3
Bit4
0: bus voltage is normal;
1: under voltage
U0-62
Current fault code
Indication range
0～99
Display the current fault code.
U0-65
Upper torque limit
Indication range
-200.00%
- 200.00%
Display the current upper limit of the given torque.
Frequency inverter module
U0-69
Indication range
0℃～120℃
radiator temperature
Display the temperature of the frequency inverter module IGBT.
The over-temperature protection values of IGBT modules of different models are different.
- 127 -
Chapter V Description of parameters
U0-70
Accumulated operating time
Indication range
0～65536h
U0-71
Cumulative power-on time
Indication range
0～65536h
U0-72
Cumulative power consumption
Indication range
0 ~ 65535 degrees
U0-73
Product Number
Indication range
-
U0-74
Software version number
Indication range
-
- 128 -
Chapter VI Abnormal diagnosis
Chapter VI Abnormal diagnosis
6.1 Fault alarm and countermeasures
Countermeasures for fault
Sr. No.
Fault name
Operation panel display
Troubleshooting of cause of failure
handling
1. Eliminate peripheral faults
1. Frequency inverter output circuit short
2. Install reactors or output
circuit
filters
2. Motor and frequency inverter wiring is
3. Check whether the air duct is
too long
blocked, fan is it working
Frequency inverter
3. Module overheating
01
properly and excluded
unit protection
4. The internal wiring of the frequency
question
inverter is loose
4. Plug in all connection lines
5. Abnormal main control board
5. Seek technical support
6. Abnormal drive plate
6. Seek technical support
7. Abnormal frequency inverter module
7. Seek technical support
1. Eliminate peripheral faults
2. Identify motor parameters
1. Frequency inverter output circuit is
3. Increase the acceleration
connected ground or short circuit
time
2. The control mode is vector and no
4. Adjust the manual lifting
parameter identification is carried out
torque or V/F curve
3. The acceleration time is too short
5. Adjust the voltage to the
Accelerated over
4. Manual torque increase or V/F curve is
normal range
02
current
not appropriate
6. Choose speed tracking start
5. Iow voltage
or wait for the electric
6. Start the rotating motor
machine to stop before
7. Sudden loading during acceleration
starting
8. The selection of frequency inverter is
7. Cancel the sudden load
small
8. Choose the frequency
inverter with higher power
level
1. Frequency inverter output circuit is
connected ground or short circuit
1. Eliminate peripheral faults
2. The control mode is vector and no
2. Identify motor parameters
parameter identification is carried out
3. Increase the deceleration
Deceleration over
3. The deceleration time is too short
time
03
current
4. Low voltage
4. Adjust the voltage to the
5. Sudden load increase during
normal range
deceleration
5. Cancel the sudden load
6. No brake unit and system added
6. Add brake unit and resistor
dynamic resistance
1. Frequency inverter output circuit is
1. Eliminate peripheral faults
connected ground or short circuit
2. Identify motor parameters
2. The control mode is vector and there is
3. Adjust the voltage to the
no carry out parameter identification
Constant speed over
normal range
04
3. Low voltage
current
4. Cancel the sudden load
4. Whether there is a sudden load in
5. Choose the frequency
operation
inverter with higher power
5. The selection of frequency inverter is
level
small
- 129 -
Chapter VI Abnormal diagnosis
Countermeasures for fault
Sr. No.
Fault name
Operation panel display
Troubleshooting of cause of failure
handling
1. Adjust the voltage to the
1. High input voltage
normal range
2. There is an external force to drag the
2 Cancel the power or add
Accelerating Over
motor to run during acceleration
05
brake resistance
voltage
3. The acceleration time is too short
3. Increase the acceleration
4. No brake unit and brake resistor are
time
installed
4. Add brake unit and resistor
1. Adjust the voltage to the
1. High input voltage
normal range
2. There is an external force to drag the
2 Cancel the power or add
Deceleration Over
motor to run during deceleration
06
brake resistance
voltage
3. The deceleration time is too short
3. Increase the deceleration
4. No brake unit and brake resistor are
time
installed
4. Add brake unit and resistor
1. Adjust the voltage to the
1. High input voltage
Constant speed Over
normal range
07
2. There is external drag during operation
voltage
2. Cancel the power or add
moving motor operation
brake resistance
1. The input voltage is not within the
1. Adjust the voltage to the
08
Control power failure
scope of the specification
standard range
1. Instantaneous power failure
2. Frequency inverter input terminal
1. Reset fault
voltage is not within the scope of the
2. Adjust the voltage to the
specification requirements
normal range
09
Under voltage fault
3. Bus voltage is not normal
3. Seek technical support
4. Rectifier bridge and buffer resistance
4. Seek technical support
is not normal
5. Seek technical support
5. Abnormal drive plate
6. Seek technical support
6. Abnormal control panel
1. Reduce the load and check
1. Whether the load is too large or
the motor and machine
electricity occurs locked rotation of
frequency inverter
mechanical situation
10
machine
overload
2. Choose the frequency
2. The selection of frequency inverter is
inverter with higher power
small
level
1. Is the setting of motor protection
1. Set this parameter correctly
parameter F9 - 01 appropriate
2. Reduce the load and check
2. Whether the load is too large or the
the motor and machinery
11
Motor overload
electric machine is blocked
3. Choose the frequency
3. The selection of frequency inverter is
inverter with higher power
small
level
1. Check and eliminate
1. Three-phase input power supply is not
problems existing in
normal
peripheral lines
12
Input phase missing
2. Abnormal drive plate
2. Seek technical support
3. Abnormal lightning protection plate
3. Seek technical support
4. Abnormal main control board
4. Seek technical support
1. The lead from the frequency inverter to
1. Eliminate peripheral faults
the motor is not normal
2, Check whether the motor
2. The three-phase output of the
three-phase winding is
13
Output phase missing
frequency inverter is unbalanced when
normal and troubleshooting
the motor is running
3. Seek technical support
3. Abnormal drive plate
4. Seek technical support
4. Module exception
1. Reduce the ambient
1. The ambient temperature is too high
temperature
2. The air duct is blocked
2. Clean up the air duct
3. The fan is damaged
14
Module overheating
3. Replace the fan
4. The module thermistor is damaged
4. Replace thermistor
5. The frequency inverter module is
5. Replace the frequency
damaged
inverter module
- 130 -
Chapter VI Abnormal diagnosis
Countermeasures for fault
Sr. No.
Fault name
Operation panel display
Troubleshooting of cause of failure
handling
External equipment
1. Input the signal of external failure
1. Reset operation
15
failure
through the multi-function terminal X.
2. Reset operation
1. Check the PC wiring
1. The upper computer is not working
2. Check the communication
normally
connection lines
2. The communication line is abnormal
Communication
3. Correctly set the type of
16
3. The communication expansion card
failure
communication expansion
FD - 00 is not set correctly
card
4. The setting of communication
4. Correctly set communication
parameter FD group is incorrect
parameters
1. The drive board and power supply are
1. Replace the drive board or
17
Contactor failure
not normal
power board
2. Contactor is abnormal
2. Replace contactors
Current detection
1. Check the hall element anomaly
1. Replace hall element
18
fault
2. abnormal drive plate
2. Replace the drive plate
1. Set motor parameters
1. Motor parameters are not set
correctly according to
according to nameplate
19
Motor tuning failure
nameplate
2. Parameter identification process timed
2. Check the frequency inverter
out
to motor lead
EEPROM
1. Replace the main control
21
1. EEPROM chip is damaged
Read / write fault
board
1. According to the Over
Hardware failure of
1. Over voltage exists
voltage fault treatment
22
frequency inverter
2. There is over current
2. According to the over current
fault processing
Short circuit to
23
1. Motor short circuit to ground
1. Replace cables or motors
ground
1. Use the parameter
Accumulated running
1. The accumulated running time
26
initialization function to clear
time reaches failure
reaches the set value
the record information
1. Input the user-defined fault 1 signal
27
User - defined fault 1
1. Reset operation
through the multi-function terminal X.
1. Input the user-defined fault 2 signal
28
User - defined fault 2
1. Reset operation
through the multi-function terminal X.
Accumulated
1. Use the parameter
1. The accumulated power-on time
29
power-up time
initialization function to clear
reaches the set value
reaches failure
the record information
1. Confirm whether the load is
disconnected or F9 - 27.
1. The operating current of the frequency
30
Off load fault
does F9 - 28 parameter
inverter is less than F9 - 27
settings conform to actual
operating conditions
1. Check PID feedback signal
Loss of PID feedback
1. PID feedback is less than FA - 26 set
31
or set FA - 26 as a suitable
during operation
point
value
1. Reduce the load and check
1. Whether the load is too large or the
the motor and machinery
Wave - by - wave
electric machine is blocked
40
2. Choose the frequency
current limiting fault
2. The selection of frequency inverter is
inverter with higher power
small
level
Switching motor
1. Change the current motor selection
1. Switch the motor after the
41
failure during
through terminals during the operation
frequency inverter stops
operation
of the frequency inverter
- 131 -
Chapter VI Abnormal diagnosis
6.2 Matters needing attention in commissioning:
1) How to shorten the actual acceleration time in V/F control mode?
Description of
If the actual acceleration time of the motor is found during the acceleration process, it is far greater than the set
phenomenon
acceleration time.
When the target frequency is less than 2 times of the rated frequency, the FF - 10 " over current suppression starting
current" can be increased, and the setting value of " over current suppression starting current" of the FF - 10
exceeds 170 each time, which is easy to cause " frequency inverter overload fault ol1" or " current limiting fault
CBC".
Solutions
The target frequency is more than 2 times of the rated frequency. In the process of rapid acceleration, it is likely that
the motor will stall (the output frequency of the frequency inverter has reached the target frequency, but the actual
speed of the motor has been staying at a certain speed in the medium speed section, but the actual speed of the
motor has been staying at a lower frequency or the acceleration time is too long). At this time, the FF - 13 "
compensation coefficient for high-speed over current suppression current" can be adjusted to 100 %.
2) How to shorten the actual deceleration time under V/F control mode?
Description of
If the actual deceleration time of the motor is found during deceleration, it is far greater than the set deceleration
phenomenon
time.
There is no additional braking resistor or feedback unit. Please increase F3 - 10 " V/F over excitation gain" setting
by 20 % each time. After increasing F3 - 10 “V/F over-excitation gain" setting, if the motor oscillation over-voltage
fault is caused, please reduce FF - 17 " over-voltage suppression voltage gain" setting.
The inverter is equipped with a braking resistor or an energy feedback unit, and the input voltage level of the
inverter is 360 - 420 v. Please adjust the FF - 32 " starting voltage of the braking unit" setting to 690 v and the F3
Solutions
- 10 " V/F over-excitation gain" setting to 0.
Using shutdown DC brake, recommended setting:
F6 - 07 ( stop DC brake starting frequency )
0.5 Hz
F6 - 09 ( stop DC brake current )
100 %
F6 - 10 ( stop DC brake time )
1S
3) How to limit the output current under V/F control mode and how to prevent over current fault under extreme impact
load?
Description of
In order to better protect the motor, control the upper limit of motor current
phenomenon
The current upper limit can be controlled by adjusting FF - 10 " over current suppression starting current" and "
current upper limit"
Solutions
Sudden acceleration, sudden deceleration, or impact load type may cause “over current fault oc" or " CBC current
limiting fault". Please increase FF - 12 " over current suppression gain" setting value. If the adjustment is too large,
it may cause current oscillation. At this time, please pay attention to callback.
4) How to limit bus voltage under V/F control mode to prevent Over voltage fault?
Description of
In constant speed power generation loads (e.g. kowtow pumping units, stone sawing machines) and shock surge
phenomenon
loads (e.g. high-power punching machines), over-voltage faults can easily occur during operation.
Constant speed intermittent power generation load: please lower FF - 14 " Over voltage suppression starting
voltage" setting value
(factory value
770 v) and limit the upper limit value of bus voltage without specific
requirements. it is recommended to adjust it to about 720 v. if Over voltage fault still occurs, please adjust ff - 18 "
Over voltage suppression maximum rise limit frequency" setting value to 10 Hz or 20 Hz ( for example, load with
long cycle power generation time such as stone sawing machine ).
Solutions
When an Over voltage fault occurs in the sudden surge load, please lower the ff - 14 " Over voltage suppression
starting voltage" setting and suggest to adjust it to about 720 v.
Large inertia rapid deceleration load: if the inverter is equipped with braking resistor and the input voltage level of
the inverter is 360 ~ 420 v, please adjust FF - 32 " starting voltage of brake unit" setting to 690 v and F3 - 10 " V/F
over-excitation gain" setting to 0. If the Over voltage is still present, please lower the FF - 14 " Over voltage
suppression start voltage" setting, which is recommended to be adjusted to about 740V.
- 132 -
Chapter VI Abnormal diagnosis
6.3 F 0.01 = 2 (V/F mode), common problem solving methods
Description of
Solutions
phenomenon
Motor oscillation during
{
Increase the oscillation suppression parameter ( F3 - 11 ) by 10 units ( maximum adjustment to
operation
100 );
High power start-up over -
{
Lower the torque increase (F3 - 01) and adjust downward by 0.5 %.
current reporting
The current in operation is
{
Set the rated voltage ( F1 - 02 ) and rated frequency ( F1 - 04 ) of the motor correctly;
too high
{
Lower the torque increase (F3 - 01) and adjust downward by 0.5 %.
{
appropriately increase the carrier frequency value ( F0 - 22 ) in units of 1.0 kHz;
Motor noise is high
{
( note: increasing the carrier frequency motor leakage current will increase )
{
Confirm that the Over voltage suppression enable ( ff - 15 ) is set to the enable state; Increase the
Sudden unloading of
Over voltage suppression gain ( ff - 16 / ff - 17, factory 30 ) by 10 units ( maximum adjustment to
heavy load to report over -
100 );
voltage, deceleration to
{
Reduce the Over voltage suppression operating voltage ( ff - 14 factory 760 v ) and reduce it in 10v
report over - voltage
units ( minimum adjustment to 700 v );
{
Increase the over current suppression gain ( ff - 12 factory 20 ) by 10 units ( maximum adjustment
Surge overload to report
to 100 );
over - current, speed up
{
Reduce over current suppression starting current ( ff - 10 factory 150 % ), decrease in 10 %
reporting over - current
( minimum adjustment to 50 % );
6.4 Fault analysis and countermeasures
Panel
Name
Troubleshooting of cause of failure
Countermeasures for fault handling
display
There is a ground or short circuit in
● Eliminate peripheral faults and detect if short circuit occurs in the motor
the frequency inverter output circuit
or interrupt contactor
The control mode is FVC or SVC
● Set motor parameters according to the motor nameplate to identify
and there is no parameter
motor parameters
identification
Quick acceleration condition,
● Increase the acceleration time
acceleration time setting is too short
Accelerated
OC1
● Confirm that the over current suppression function (FF - 11 ) has been
over current
enabled;
Setting of over-loss rate
● The setting value of over current suppression action current (FF - 10)
suppression is not appropriate
is too large and is recommended to be adjusted within 120 % to 150 %.
● The setting of over-current suppression gain (FF - 12 ) is too small,
and it is recommended to adjust within 20 to 40;
Manual torque boost or V/F curve
● Adjust the manual lifting torque or V/F curve
not appropriate
● Select speed tracking to start or wait for the motor to stop before
Start the rotating motor
starting
- 133 -
Chapter VI Abnormal diagnosis
Panel
Name
Troubleshooting of cause of failure
Countermeasures for fault handling
display
● Check the historical fault record. If the current value at the time of the
fault is far from the value of the over current point, it is necessary to find
Subject to external interference
the interference source. If there is no other interference source, it may
be the drive board or hall element.
There is a ground or short circuit in
● Eliminate peripheral faults and detect if short circuit occurs in the motor
the frequency inverter output circuit
or interrupt contactor
The control mode is FVC or SVC
● Set motor parameters according to the motor nameplate to identify
and there is no parameter
motor parameters
identification
The deceleration time is set too
short under the condition of rapid
● Increase deceleration time
deceleration.
● Confirm that the over current suppression function (FF - 11 ) has been
Deceleration
OC2
enabled;
over current
Setting of over-loss rate
● The setting value of over current suppression action current (FF - 10)
suppression is not appropriate
is too large and is recommended to be adjusted within 120 % to 150 %.
● The setting of over-current suppression gain (FF - 12 ) is too small,
and it is recommended to adjust within 20 to 40;
Brake unit and brake resistor are
● Add brake unit and resistance
not added
● Check the historical fault record. If the current value at the time of the
fault is far from the value of the over current point, it is necessary to find
Subject to external interference
the interference source. If there is no other interference source, it may
be the drive board or hall element.
There is a ground or short circuit in
● Eliminate peripheral faults and detect if short circuit occurs in the motor
the frequency inverter output circuit
or interrupt contactor
The control mode is FVC or SVC
● Set motor parameters according to the motor nameplate to identify
and there is no parameter
motor parameters
identification
Quick acceleration condition,
● Increase the acceleration time
acceleration time setting is too short
● Confirm that the over current suppression function (FF - 11 ) has been
enabled;
Constant
Setting of over-loss rate
● The setting value of over current suppression action current (FF - 10)
speed over
OC3
suppression is not appropriate
is too large and is recommended to be adjusted within 120 % to 150 %.
current
● The setting of over-current suppression gain (FF - 12 ) is too small,
and it is recommended to adjust within 20 to 40;
● In stable operation, if the operating current exceeds the rated current
The selection of frequency inverter
of the motor or the rated output current value of the frequency inverter,
is small
please select the frequency inverter with higher power level.
● Check the historical fault record. If the current value at the time of the
fault is far from the value of the over current point, it is necessary to find
Subject to external interference
the interference source. If there is no other interference source, it may
be the drive board or hall element.
High input voltage
● Adjust the voltage to the normal range
There is an external force to drive
the electric machine to run during
● Cancel additional power or add braking resistance
acceleration
● Confirm that the Over voltage suppression function (FF - 15 ) has been
enabled;
Accelerated
Over voltage suppression setting is
● Over voltage suppression action voltage (FF - 14 ) set value is too
OU1
Over voltage
not appropriate
large, which is recommended to be adjusted within 770 v to 700 v;
● The Over voltage suppression gain (FF - 15 / 16 ) is set too small and
is recommended to be adjusted within 30 to 50;
There is no additional braking unit
● Add brake unit and resistance
and braking electrical resistance
Acceleration time is too short
● Increase the acceleration time
- 134 -
Chapter VI Abnormal diagnosis
Panel
Name
Troubleshooting of cause of failure
Countermeasures for fault handling
display
There is an external force to drag
● Cancel additional power or add braking resistance
the motor during deceleration
● Confirm that the Over voltage suppression function (FF - 15 ) has
enabled;
Over voltage suppression setting is ● Over voltage suppression action voltage (FF - 14 ) set value is too
Deceleration
OU2
not appropriate
large, which is recommended to be adjusted within 770 v to 700 v;
Over voltage
● The Over voltage suppression gain (FF - 15 / 16 ) is set too small and
is recommended to be adjusted within 30 to 50;
There is no additional braking unit
● Add brake unit and resistance
and braking electrical resistance
Deceleration time is too short
● Increase deceleration time
There is an external force to drag
● Cancel additional power or add braking resistance
the motor during deceleration
● Confirm that the Over voltage suppression function (FF - 15 ) has
enabled
● Over voltage suppression operation voltage (FF - 14 ) set value is too
Constant rate
large, and it is recommended to adjust within 770 v ~ 700 v;
OU3
Over voltage
Over voltage suppression setting is
● Over voltage suppression gain (FF - 15 / 16 ) set too
not appropriate
● Small, and it is recommended to adjust it within 30 to 50;
● Over voltage suppression maximum rise limit frequency ( ff - 18 )
● The setting is too small, it is recommended to adjust within 10 to 20;
Control power
The bus voltage fluctuates up and ● Low input voltage or low input power.
IPF
failure
down at the under voltage point
● seek technical support
Electric
frequency
inverter The
display is
normal and
The fan is damaged or jammed
“EnEr”is
EnEr
There is a short circuit in the wiring●Replacethefan
● Eliminate external short circuit fault
displayed after
of the peripheral control terminal
operation.And
stop the
machine
immediately
- 135 -
Chapter VII Maintenance
Chapter VII Maintenance
Danger
z
Do not repair and maintain the equipment with electricity, otherwise there is danger of electric
shock!
z
Confirm that maintenance and repair can only be carried out when the inverter bus voltage is
lower than DC36V, whichever is 10 minutes after the power failure. Otherwise, the residual
charge on the capacitor will cause harm to people!
z
Please restore the front cover plate of the connection terminal before re - powering, otherwise
it may cause personal injury!
z
All pluggable plug-ins must be plugged and unplugged in case of power failure. Otherwise,
there is a danger of causing secondary damage!
Caution
z
Parameters must be set after replacing the frequency inverter, otherwise it may cause damage
to other equipment in the system!
z
Anti-static measures must be taken to dismantle and install the circuit board, which can
prevent the damage of devices on the circuit board!
z
Non-professional technical personnel shall carry out electrical detection or measurement
during power-up or operation of the frequency inverter.
7.1 Maintenance and repair
7.1.1 Routine maintenance
Due to the influence of ambient temperature, humidity, dust and vibration, the devices inside the frequency
inverter will age, causing potential failure of the frequency changer or reducing the service life of the frequency
inverter. Therefore, it is necessary to carry out routine and regular maintenance and safeguard of the frequency
inverter.
Routine inspection items:
1) Whether the operating environment of the frequency inverter has changed.
2) Whether the frequency inverter is overheated or has abnormal sound, and whether the frequency inverter
cooling fan works normally.
3) Whether abnormal changes occur in the sound of the motor during its operation and whether vibration occurs
- 136 -
Chapter VII Maintenance
during its operation.
4) Whether the display value of the main operating parameters of the load is the same as the normal value.
Refer to the following table for routine inspection:
Inspection items
Inspection area
Inspection items
Operating Environment
Frequency inverter installation site
Temperature, humidity, dust, metal dust, harmful gases
Frequency inverter
Inside the cabinet
Temperature, sound, peculiar smell
body
Whether the monitoring data is normal, such as input voltage,
Display
LED monitor, meter
output current, output frequency output voltage, etc.
Motor and its wiring and connection
The temperature and sound of the motor, the temperature of
Loads
terminals
the wire and whether there is abnormal heat at the terminal
Daily cleaning:
1) Keep the doors and windows of the frequency inverter room closed and the filtering device of the cooling
system in a normal and clean state.
2) The frequency inverter should always be kept in a clean state. Validly remove dust on the surface area of the
frequency inverter to prevent dust accumulation from entering the frequency inverter. Especially the metal dust
7.1.2 Regular maintenance
Regular inspections should be carried out at places that are difficult to inspect during operation. The inspection
shall be carried out at least ten minutes after the power failure. Refer to the following table for regular inspection
items:
Inspection items
Check content
Countermeasures
Main loop terminal,
Whether the bolts and screws are loose,
Processing is normal
control loop terminal
and whether there are any spark marks
Whether there is dust accumulation,
whether the fan blade movement is blocked
Fan cooling
or whether there is abnormal sound and
Replace defective products
vibration, and whether the wind turbine
housing is overheated and deformed
Whether there is overheating or burning.
The former changes plates as the case may be, while the
Printed circuit board
Dust accumulation
latter blows the ash OFF with dry air of several atmospheres
Connector
Is it loose
Reinsert
Is there any leakage or bubbling
Electrolytic capacitor
Replace with new products
discoloration?
Heat sink
Is there dust accumulation
Dust removal, air duct cleaning,
Use a 500 v megohmmeter and disconnect the control circuit
Insulation situation
Insulation of main circuit to ground
from the main return circuit, the power supply and the load
from the frequency inverter
Ambient air
Is it corroded
Transforming the environment
7.1.3 Replacement of vulnerable parts of frequency inverter
The vulnerable parts of the frequency inverter mainly include cooling fans and electrolytic capacitors for filtering,
followed by printed circuit boards and fuses, etc. their life span is closely related to the environment in which they are
used and their maintenance conditions. The user can determine the replacement period based on the running time.
The typical life time of these devices is:
- 137 -
Chapter VII Maintenance
Device name
Life time
Fan
2-3 years
Electrolytic condenser
4-5 years
Printed circuit board
5-8 years
1) Fan cooling
Possible causes of damage: bearing wear and blade aging. Criteria: whether there is any crack in the fan
blade, whether there is abnormal vibration sound when starting the machine, etc.
2) Filter electrolytic capacitor
Possible causes of damage: poor quality of input power supply, high ambient temperature, frequent load jump
and electrolyte aging. Criteria: leakage of liquid, bulging of safety valve, determination of electrostatic capacitance,
determination of insulation resistance
3) Printed circuit board
Possible causes of damage: aging insulation, deterioration of devices, loose connectors.
Criteria: broken insulation, burning marks on board surface, poor contact of plug - ins.
7.2 Storage and storage
After the user purchases the frequency inverter, the following points must be paid attention to for temporary
storage and long-term storage:
y When storing, try to pack it into the packing box of our Company according to the original packing.
y It should be placed in a room with a temperature of - 25
℃ ~ 65 ℃ without moisture, dust, metal dust and
good ventilation.
y Long - term storage will lead to deterioration of the electrolytic capacitor of the main circuit in the frequency
inverter. It must be guaranteed to be energized once within one year to ensure that the electrical characteristics
of the capacitor can be restored.
y Do not carry out withstand voltage test on the frequency inverter at will, which will lead to reduced service life.
- 138 -
Chapter VIII Peripheral equipment
Chapter VIII Peripheral equipment
8.1 Peripheral equipment and optional parts connection diagram
8.2 Functional description of peripheral equipment
Accessory name
Installation site
Brief description of function
Power cut-off for downstream equipment when over current
Fuse - less circuit breaker
Front end of input loop
occurs
Between the idle switch and
Cut OFF the main power supply when the frequency inverter
Contactor
the input side of the frequency
fails.
inverter
Input side of frequency
Increasing the power factor at the input side; validly eliminate
Ac input reactor
inverter
the higher harmonic on the input side
Main circuit of frequency
Brake unit or brake resistor
Mainly used for fast braking
inverter
- 139 -
Chapter VIII Peripheral equipment
The output side of the frequency changer contains as many
higher order harmonic waves as possible. When the motor is
far away from the frequency inverter, there is a large
Between the frequency
distributed capacitance in the circuit. One of the harmonics
inverter output side and the
may resonate in the loop, bringing about two effects: Damaging
Ac output reactor
motor. Install near the
the insulation performance of the motor will damage the motor
frequency inverter.
for a long time. A large leakage current is generated, causing
frequent protection of the frequency inverter. As the distance
between the frequency inverter and the motor exceeds 100 m,
it is proposed to install an output AC reactor.
Reduce the transmission and radiation interference of the
frequency changer to the outside; Reduce the transmission
Input side of frequency
EMC input filter
and conduction interference from the power supply end to the
inverter
frequency inverter and improve the anti-interference capability
of the frequency inverter.
To protect the frequency inverter and related circuit
Leakage protector
Input side of frequency inverter
leakage
It is used in occasions where the power is cut OFF for
Capacitance box
Main circuit of frequency inverter
a long time and the motor is continuously transported.
8.2.1 No fuse circuit breaker and contactor
1 ) The basic purpose of the fuse-less circuit breaker ( commonly known as air switch ) is to quickly cut OFF
the fault current when the frequency inverter has an over current fault or other circuits below it have the same fault.
It is used to prevent the frequency inverter and its circuits from causing power failure and to prevent the expansion
of local accidents. In general power distribution systems, each should be equipped with its rated current varying
according to the capacity of the frequency inverter. Refer to the table below for the recommended selection.
2) The contactor cuts OFF its main power supply when the frequency inverter fails and is used to prevent
restart after the failure.
Frequent power-up and power-down operations (less than twice per minute) or direct start-up operations of the
inverter through contactors should be avoided.Because the contactor is connected between the power supply and
the input of the frequency inverter, if the contactor is used to control the starting and stopping of the frequency
inverter, frequent charging and discharging can easily reduce the service life of the capacitor in the frequency
inverter and also damage the contactor. Switch devices such as contactors shall not be installed between the output
end of the frequency inverter and the motor. If it is really necessary (for example, switching between multi-frequency
inverter systems or multi-motor systems), the on-off operation of the frequency inverter shall be ensured when there
is no output, otherwise the main device in the frequency inverter may be damaged.
The recommended selection is shown in the following table.
Inverter specification
Fuse - less circuit breaker mccb ( a )
Contactor MC ( a )
3 - phase power supply, 380 v
4
9
HV480-R75G3
6
9
HV480-1R5G3
10
12
HV480-2R2G3
16
18
HV480-004G3
20
25
HV480-5R5G3
25
25
HV480-7R5G3
32
32
HV480-011G3
40
40
HV480-015G3
50
50
HV480-018G3
- 140 -
Chapter VIII Peripheral equipment
63
63
HV480-022G3
80
80
HV480-030G3
100
100
HV480-037G3
125
115
HV480-045G3
160
125
HV480-055G3
200
185
HV480-075G3
225
225
HV480-093G3
315
330
HV480-110G3
315
400
HV480-132G3
350
400
HV480-160G3
400
500
HV480-185G3
400
500
HV480-200G3
- 141 -
Chapter VIII Peripheral equipment
8.2.2 AC input reactor
The device aims to change the voltage waveform distortion caused by the capacitive characteristics of the input
end of the frequency inverter, validly eliminate the high-order harmonic wave on the input side and suppress the
surge on the power supply side, thus improving the power factor, preventing other devices from being damaged due
to the voltage waveform distortion, and eliminating the input current imbalance caused by the unbalance between the
power supply phases. In addition, the higher harmonics of the power supply will cause damage to the frequency
inverter.
8.2.3 AC output reactor
When the connection between the frequency inverter and the motor is too long, the distributed capacitance
between the cables will increase, which is easy to generate capacitive high harmonic current, which will directly
cause the output over current accident of the frequency inverter. It will also cause electromagnetic interference to
other devices. Therefore, adding output reactors can reduce these impacts. As for the distributed capacitance
between the output wiring of the frequency inverter, if the high harmonic current content in the wiring is high, it may
cause resonance and generate leakage current. Leakage currents exceeding 100 m in length of motor cables may
also be large. The solution is to reduce carrier frequency operation, and a more valid measure is to install output
reactors.
It is recommended to use AC reactors under the following circumstances:
1) The power supply capacity of the frequency inverter is more than ten times that of the frequency inverter.
2) The same power supply as the frequency inverter is connected with a thyristor load or a power
factor
compensation device controlled by a switch, etc. where the quality of the power grid is relatively poor.
3) The three-phase unbalance degree of the power supply is greater than 3 %.
The recommended reactor parameters are shown in the following table.
Frequency inverter power ( kw )
Inlet wire reactor
Inlet wire electricity
Output reactor electricity
Output reactor inductance ( μ
(Rated voltage 380V)
Current ( a )
Inductance ( MH )
Stream ( a )
H)
0.75
3.4
8.0
2.1
2100
1.5
4.8
4.0
3.8
2100
2.2
6.2
3.2
5.1
1450
4.0
9.6
2.0
9
1100
5.5
14
1.5
13
800
7.5
18
1.2
17
650
11
26
0.8
25
330
15
35
0.6
32
250
18.5
41
0.5
37
200
22
50
0.42
45
180
30
62
0.32
60
90
37
80
0.26
75
80
45
96
0.21
91
60
55
120
0.18
112
40
75
165
0.13
150
35
93
180
0.11
176
30
110
225
0.09
210
20
132
260
0.08
253
16
160
305
0.07
304
13
185
350
0.06
340
11
200
385
0.06
380
11
- 142 -
Chapter VIII Peripheral equipment
8.2.4 Selection of energy consumption braking unit and braking resistance
When the motor is operating in the braking state, the motor will generate regenerative energy, which is
electrical energy converted by the mechanical energy released when the rotating speed of the rotating motor
changes from high to low and fed back to the main circuit being powered, which raises the voltage of the main
circuit. The amount of the energy depends on the overall system characteristics and the parameter settings of the
frequency inverter. In order to make the system work properly, this part of energy is dissipated by resistance, i.e.
DC energy consumption braking.
1) The selection of the resistance value of the braking resistor RB
It also indirectly determines the magnitude of the braking torque of the system. If the braking torque is too small,
it will not be restrained. The rise in the voltage of the main circuit will lead to over-voltage of the main circuit of the
system and trip protection. If the braking torque is too large, the stable operation of the system will be affected. In
order to stabilize the braking voltage of the system, it is generally chosen to be about 1.8 times of the rated AC input
voltage. For 380 v standard motor control system, the working point of energy consumption braking is generally
selected to be about 700 v. If this voltage is too low, braking may occur within the maximum operating range of the
power supply. If this voltage is selected too high, Over voltage protection action may occur.
Assuming KB is the mechanical energy / electrical energy conversion efficiency coefficient when the motor
power is p (kw) feedback, usually kb = 0.7, then, when the brake operating point voltage u = 700 volts, according
to the energy conservation relation that the motor generates energy that is completely absorbed by the brake
resistor, the following relation exists when the motor has 100 % brake torque:
1000P*KB=U²/RB
That is,
RB= U²/1000 P*KB=700/P
Considering that KB is an empirical value and the duty cycle of the braking current, the actual maximum braking
torque occurs at the extreme limit of KB = 1, at this time: KBmin = 0.7 * 700 / P ≈ 500 / P at this time, the braking
current reaches the maximum. If this limit is exceeded, the device will be damaged.
2) The selection of braking resistor power
For the calculation of the power dissipated by the braking resistor itself is still fully absorbed by the braking
resistor according to the regenerative energy and uses thermal energy. Considering the form of release, assuming
that the resistance power is PB, the braking frequency KF, and the power margin ks, then
PB=P*KB*Kf*Ks
If select the Ks is 10/0.7, then KB*Ks=1, then, the heat dissipation power of PB=P*Kf
Brake resistance depends on the braking frequency Kf. For general use, when occasional braking is required
and braking does not need to occur frequently, Kf should be around 10%.For different load types, the values are
usually as follows:
Oil field beam pumping unit: 10 % - 20 %
Elevators and cranes: 20 % - 40 %
Uncoilers and winders: 30 % - 50 %
Centrifuges: 40 % - 60 %
Since the regenerative braking energy varies according to the inertia, deceleration time, load type, braking
frequency and other factors of the driving system, the selection of braking resistance should be based on the actual
usage of the user. Generally speaking, the larger the inertia of the system, the faster the deceleration and the more
frequent the breaking, the smaller the resistance value selected and the greater the power of the resistor itself. The
recommended values are shown in the following table.
- 143 -
Chapter VIII Peripheral equipment
Braking resistance
Braking resistance
Braking resistance
Braking resistance
Motor power
Power supply
value（W/Ω）
quantity
value（W/Ω）
quantity
Note
（kW）
Kf=20%
Kf=20%
Kf=40%
Kf=40%
380V/3Φ
0.75
150W/800Ω
1
300W/800Ω
1
Built - in brake unit
380V/3Φ
1.5
300W/400Ω
1
600W/400Ω
1
Built - in brake unit
380V/3Φ
2.2
440W/250Ω
1
880W/250Ω
1
Built - in brake unit
380V/3Φ
4.0
800W/150Ω
1
1100W/150Ω
1
Built - in brake unit
380V/3Φ
5.5
1100W/100Ω
1
2200W/100Ω
1
Built - in brake unit
380V/3Φ
7.5
1500W/75Ω
1
3000W/75Ω
1
Built - in brake unit
380V/3Φ
11
2200W/50Ω
1
4500W/50Ω
1
Built - in brake unit
380V/3Φ
15
3000W/40Ω
1
6000W/40Ω
1
Built - in brake unit
380V/3Φ
18.5
4000W/30Ω
1
4000W/60Ω
2
Built - in brake unit
380V/3Φ
22
4500W/30Ω
1
4500W/60Ω
2
Built - in brake unit
380V/3Φ
30
6000W/20Ω
1
6000W/40Ω
2
Built - in brake unit
380V/3Φ
37
4000W/28Ω
2
5000W/42Ω
3
External brake unit
380V/3Φ
45
4500W/20Ω
2
6000W/30Ω
3
External brake unit
380V/3Φ
55
5500W/16Ω
2
5000W/40Ω
5
External brake unit
380V/3Φ
75
5000W/19Ω
3
5000W/39Ω
6
External brake unit
380V/3Φ
93
6000W/15Ω
3
5000W/40Ω
8
External brake unit
380V/3Φ
110
5500W/18Ω
4
5000W/40Ω
9
External brake unit
380V/3Φ
132
4500W/22Ω
6
6000W/33Ω
9
External brake unit
380V/3Φ
160
4000W/24Ω
8
5000W/39Ω
13
External brake unit
380V/3Φ
185
4500W/20Ω
8
5000W/39Ω
15
External brake unit
380V/3Φ
200
5000W/20Ω
8
5000W/40Ω
16
External brake unit
3) Regarding the brake unit
No regenerative braking function is built in the
30kw G series type of frequency inverter and above
specifications. When braking energy is needed, an energy consumption braking unit should be added. It should be
noted when ordering. The brake unit shall be connected to the Θ and ⊕ terminals of the frequency inverter, and
the brake resistor shall be connected to the external brake unit. The regenerative braking function is necessary
when the braking torque of the machine itself cannot meet the application requirements, especially when it is
under large inertia load, frequently broken or quickly stopped.
In situations requiring higher fast braking, even if an energy-consuming braking device is installed, the user is
advised to use a feedback braking unit.
8.2.5 External DC reactor
The series of frequency inverters are all externally connected with DC reactors. If necessary, please consult
the distributor or the factory directly for specific specifications.
8.2.6 Radio noise filter
The product is designed to meet the requirements of national standard GB/T12668.3
in terms of
electromagnetic compatibility
(that is, EMC refers to the ability of electrical equipment to operate in an
electromagnetic interference environment, not to interfere with the electromagnetic environment, and to realize its
functions stably). Frequency inverters need to meet the requirements of both electromagnetic interference and
anti-electromagnetic interference. Electromagnetic interference mainly refers to radiation interference, conduction
interference and harmonic interference of frequency inverters. Anti-electromagnetic interference mainly refers to
the conduction immunity, radiation immunity, surge immunity, rapid burst immunity, ESD immunity and low
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Chapter VIII Peripheral equipment
frequency end immunity of the power supply.
The Company's products will be installed and used according to the following instructions, and will have good
electromagnetic performance in general industrial environment.
Capacitive. There are two kinds of electromagnetic interference, one is the interference of the electromagnetic noise
of the surrounding environment to the frequency inverter, and the other is the interference of the noise generated by
the frequency inverter to the surrounding equipment.
1) Treatment method for interference of peripheral electromagnetic equipment to frequency inverter: Generally,
the electromagnetic influence on frequency inverters is caused by the installation of a large number of relays,
contactors or electromagnetic brakes in the vicinity of frequency inverters. When the frequency inverter is thus
disturbed and misoperation occurs, it is recommended to install a radio noise filter at the input of the frequency
inverter.
2) Measures for dealing with interference of frequency inverter to peripheral equipment: This part of the noise is
divided into two types: one is the frequency inverter radiation interference, while the other is the frequency
inverter conduction interference. These two kinds of interference make the peripheral electrical equipment
subject to electromagnetic or electrostatic induction. Thus causing misoperation of the device According to
different interference situations, adopt different methods to solve the problem:
a. The instruments, receivers and sensors used for measurement are generally weak in signal. If they are
relatively close to the frequency inverter or in the same control cabinet, they are prone to interference and
misoperation. Therefore, they should be kept away from the interference source as far as possible. do not
arrange the signal lines in parallel with the power lines, especially do not tie them together in parallel; Shielded
wires for signal lines and power lines and good grounding; Ferrite magnetic rings are added to the output side of
the frequency changer (the selective suppression frequency is in the range of 30 ~ 1000 MHz) and 2 ~ 3 turns
are wound in the same direction. For severe cases, the radio noise output filter can be added.
b. When the interfered equipment and the frequency inverter use the same power supply, they will cause
conduction interference. If the above methods cannot eliminate interference, a radio noise filter should be
installed between the frequency inverter and the power supply.
c If the length of the motor cable exceeds 100 m, it is required to add an output filter. The rated voltage of
the frequency inverter is 380 v and the recommended products for the input radio noise filter are shown in the
following table.
Adaptive motor power ( kw )
Power supply capacity ( kVA)
Rated input current (A)
0.75
1.5
3.4
1.5
3
5
2.2
4
5.8
4.0
5.9
10.5
5.5
8.9
14.6
7.5
11
20.5
11
17
26
15
21
35
18.5
24
38.5
22
30
46.5
30
40
62
37
57
76
45
69
92
55
85
113
75
114
157
93
134
180
110
160
214
132
192
256
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Chapter VIII Peripheral equipment
160
231
307
185
242
350
200
250
385
Precautions for installation:
1) The grounding wire of frequency inverter and other electrical products shall be well grounded; the
filter must be connected to the same common ground as the PE end of the frequency inverter, otherwise it
will seriously affect the EMC effect. The input filter is installed as close as possible to the power input of the
frequency inverter.
Shield cables for the control signal lines and lead wires of the test lines of the frequency inverter and
reliably ground the shield layer.
2 ) The power input and output lines and weak current signal lines ( e.g. control lines ) of the frequency
inverter should not be arranged in parallel as far as possible, and should be arranged vertically when
conditions permit.
3) It is recommended to use shielded cable or steel pipe to shield the power line for the output power
line of the frequency inverter, and the shielding layer should be reliably grounded.
4) It is recommended to use twisted pair shielding control lines for the leads of the interfered equipment
and reliably ground the shielding layer;
5) If peripheral equipment is grounded separately, interference caused by leakage current of frequency
inverter grounding line can be eliminated.
8.2.7 Leakage protector
There are two forms of leakage current when using frequency inverter: one is leakage current between wires,
the other is leakage current to ground. The former leakage current has been explained in the section of reactor. This
section only discusses leakage current to floor drain.
There may be insulation and leakage for other reasons in the frequency inverter and its accessories and related
circuits. Moreover, because there are distributed capacitors in the frequency inverter, the motor and its wiring with
the earth, the larger the distributed capacitor is, the larger the leakage current is. However, this series frequency
inverter is designed with low noise, so the carrier frequency is higher, the higher the carrier frequency is, the greater
the leakage current is. The leakage current will increase as the return current increases, so when the motor power
is high, the corresponding leakage current will be high. Validly reduce the distance between the frequency inverter
and the motor to reduce the distributed capacitance. The carrier frequency can be lowered to reduce leakage current,
but lowering the carrier frequency will result in increased motor noise. Installing reactors is also a valid way to solve
leakage current. However, there must be a current to the floor drain. Installing a leakage protector is also a valid
method to protect the frequency inverter.
The leakage protector shall be installed between the incoming line end of the frequency inverter and the mccb of
the air switch. The criterion for selecting its specifications is that the operating current of the leakage protector shall
not be less than ten times that of the line when the frequency inverter is not used under the power frequency power
supply.
8.2.8 Capacitance box
This peripheral device is specially used for occasions where the power failure time is long and the motor needs
continuous operation. Although this series frequency inverter has the advanced function of instant stop, the capacitor
box can still be used under the special circumstances of specific requirements (the instantaneous power failure of the
power supply is greater than 20 ms). If necessary, specify the specific requirements when ordering.
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Chapter IX Quality Assurance
Chapter IX Quality Assurance
9.1 Quality commitment
The quality assurance of the product shall be handled according to the following regulations:
The warranty scope only refers to the frequency inverter body, and the warranty period starts from the
Company's delivery date.
The warranty period of the product is 18 months after purchase, even if the product fails due to the following
reasons Inside, also belong to paid maintenance:
z
Problems caused by incorrect operation or unauthorized self-repair and renovation;
z
Problems caused by the use of frequency inverters beyond the standard specification requirements;
z
Damage caused by falling or rough handling after purchase;
z
Aging or failure of devices caused by use in environments that do not meet the requirements of this
specification;
z
The frequency inverter is damaged due to incorrect connection wires;
z
Failures caused by earthquakes, fires, geomantic disasters, lightning strikes, abnormal voltages or other
natural disasters and disasters.
The Company has the right to entrust others to take care of the warranty of the faulty products.
The quality assurance content that is truly the responsibility of the Company:
z
Return, exchange and warranty within one month of shipment;
z
Replacement and warranty within three months of shipment;
z
Warranty for 18 months after shipment
Relevant service fees shall be calculated based on actual fees. If there is any agreement, the principle of
agreement first shall be applied.
The Company's sales, production and agency agencies throughout the country can provide after-sales service
to the product.
Our Company reserves the right to interpret this agreement.
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Additional instructions
Additional instructions
On the issue of exemption from liability
z
The Company cannot bear any liability arising from or induced by the use of the product in violation of the
provisions of this specification.
z
The Company is not responsible for compensation for the loss, ripple or secondary damage caused to you by
the failure of the product.
Instructions for users
This instruction manual is only applicable to this series of products.
The Company has lifelong responsibility for the product and provides all services related to the use of the
product.
Although the product is designed and manufactured under strict quality control, please ask our Company in
advance if it is used for the following purposes that may endanger human body or its life due to its failure or
operational error.
z
Used for the transportation equipment
z
Medical device
z
Nuclear and electrical equipment
z
Aviation and space devices
z
Various safety devices
z
Other special purposes
About hope for users
We sincerely hope that the vast number of users will put forward their opinions or suggestions on the Company's
product design, performance, quality and service, and we would appreciate it very much.
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