FANUC Series 0i-MODEL C, Series 0i Mate-MODEL C. MAINTENANCE MANUAL

2. HARDWARE

B-64115EN/02

2.10.1

One battery unit can maintain current position data for six absolute pulse

coders for a year.

Battery for Separate

When the voltage of the battery becomes low, APC alarms 3n6 to 3n8 (n:

Absolute Pulse Coders

axis number) are displayed on the LCD display. When APC alarm 3n7

(6VDC)

is displayed, replace the battery as soon as possible. In general, the battery

should be replaced within one or two weeks, however, this depends on the

number of pulse coders used.

If the voltage of the battery becomes any lower, the current positions for

the pulse coders can no longer be maintained. Turning on the power to

the control unit in this state causes APC alarm 3n0 (reference position

return request alarm) to occur. Return the tool to the reference position

after replacing the battery.

Therefore, FANUC recommends that the battery be replaced once a year

regardless of whether APC alarms are generated.

See Connection Manual

(Hardware)

(B-64113EN) for details of

connecting the battery to separate absolute pulse coders.

Replacing batteries

Obtain four commercially available alkaline batteries (size D).

(1) Turn on the power to the machine (Series 0i/0i Mate).

(2) Loosen the screws of the battery case, and remove the cover.

(3) Replace the dry batteries in the case.

Note the polarity of the batteries as shown in the figure below (orient

two batteries one way and the other two in the opposite direction).

Screws

Cover

ŸŸ

(4) After installing the new batteries, replace the cover.

(5) Turn off the power to the machine (Series 0i/0i Mate).

WARNING

If the batteries are installed incorrectly, an explosion may

occur. Never use batteries other than the specified type

(Size D alkaline batteries).

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2. HARDWARE

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CAUTION

Replace batteries while the power to the CNC is on. Note

that, if batteries are replaced while no power is supplied to

the CNC, the recorded absolute position is lost.

2.10.2

The battery for the absolute pulse coder built into the motor is installed

in the servo amplifier. For how to connect and replace the battery, refer

Battery for Absolute

to the following manuals:

Pulse Coder Built into

D FANUC SERVO MOTOR αi series Maintenance Manual

the Motor (6VDC)

D FANUC SERVO MOTOR β series Maintenance Manual

D FANUC SERVO MOTOR β series (I/O Link Option) Maintenance

Manual

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2. HARDWARE

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2.11

REPLACING FAN

WARNING

MOTORS

When opening the cabinet and replacing a fan motor, be

careful not to touch the high-voltage circuits (marked and

fitted with an insulating cover).

Touching the uncovered high-voltage circuits presents an

extremely dangerous electric shock hazard.

D Fan ordering information

If the drawing number of the basic unit is A02B-0309-B50n,

A02B-0311-B50n, or A02B-0311-B51n (where n is 0, 1, ..., 9)

Ordering information

Required quantity

Unit with no option slot

A02B-0236-K120

Unit with 2 option slots

A02B-0281-K121

If the drawing number of the basic unit is A02B-0309-B52n,

A02B-0311-B52n, or A02B-0311-B53n (where n is 0, 1, ..., 9)

Ordering information

Mounting

Required

location

quantity

Unit with no option slot

A02B-0309-K120

Right

A02B-0309-K120

Left

Unit with 2 option slots

A02B-0309-K120

Right

A02B-0309-K121

Left

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2. HARDWARE

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Replacement procedure

If the drawing number of the basic unit is A02B-0309-B50n,

A02B-0311-B50n, or A02B-0311-B51n (where n is 0, 1, ..., 9)

1. Before replacing a fan motor, turn off the power to the CNC.

2. Unplug the connector of a fan motor to be replaced ( (1) of Fig. a).

The connector is latched. So, when unplugging the connector, hold

down the latch placed at the lower part of the connector with a

flat-blade screwdriver.

3. Detach the latch securing the fan motor, then demount the fan motor

( (2) of Fig. a).

4. Insert a new fan motor into the fan case ( (3) of Fig. a), then reconnect

the connector.

Fig. a

(1) Connector

(3) Fan case

(2) Fan

Note) Install a fan so that it flows air in the upward

direction.

(Face the label upward.)

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2. HARDWARE

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If the drawing number of the basic unit is A02B-0309-B52n,

A02B-0311-B52n, or A02B-0311-B53n (where n is 0, 1, ..., 9)

1) Before replacing a fan motor, turn off the power to the CNC.

2) Extract the fan motor to be replaced. (Hold the latch of the fan unit,

and extract the unit upward while releasing the claw from the case.)

Extract the unit while holding

this portion.

3) Mount a new fan unit. (Push the fan unit in until the claw is latched

into the case.)

Push the unit in until the claw

is latched into the case.

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2. HARDWARE

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2.12

REPLACING LCD

WARNING

BACKLIGHT

Only those personnel who have received approved safety

and maintenance training may perform this replacement

work.

When opening the cabinet and replacing a unit, be careful

not to touch the high-voltage circuits (marked

and fitted

with an insulating cover).

Touching the uncovered high-voltage circuits presents an

extremely dangerous electric shock hazard.

CAUTION

Before starting replacement work, back up the contents

(such as parameters and programs) of the SRAM memory

of the CNC. Otherwise, the contents of the SRAM memory

may be lost during replacement work.

Brightness of the

When the ambient temperature is low, the brightness of the LCD

monochrome LCD

decreases.

(The LCD screen is dark particularly immediately after the

power is turned on.) This phenomenon is not a failure but is a property

specific to the LCD. When the ambient temperature increases, the LCD

screen becomes brighter. The monochrome LCD has a brightness control

function. For the method of adjustment, see Section 1.17.

D Backlight ordering

information

Backlight

Ordering information

For 7.2″ LCD

A02B-0236-K112

For 8.4″ LCD

A02B-0236-K119

For 10.4″ LCD

A02B-0309-K116

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2. HARDWARE

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5) Remove the inverter cable and then four fastening screws from the

LCD panel. Now the LCD panel can be detached.

6)-1 For the 7.2″ LCD unit (monochrome)

Remove the three screws from the left part on the front of the LCD

unit, and remove the cover. Then, the backlight is exposed. Replace

the backlight with a new one.

Connector

Display surface of LCD unit

Backlight

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2. HARDWARE

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By changing the setting (rotary switch) on an expansion module, a

2.13

connection can be made to skip an expansion module or expansion

DISTRIBUTED I/O

modules as shown below.

SETTING

When expansion module 1 is

When expansion module 2 is

When expansion modules 1 and

skipped

2 are skipped

Method of setting (control and setting method)

A control (rotary switch) is provided on the location shown below of each

expansion module. When changing the setting, turn the rotary switch

with a flat-blade screwdriver with a tip diameter of about 2.5 mm.

Each setting position of the rotary switch has the meaning as indicated below.

Setting position

Indication

Meaning of setting

Standard setting. The rotary switch is set to this position at the time of shipment from FANUC.

This setting is not skipped an expansion module.

Set the rotary switch of an expansion module to this position when the one preceding expansion

module is skipped.

Set the rotary switch of an expansion module to this position when the two preceding expansion

modules are skipped.

Setting prohibited

4 to F

4, -, 6, -,

4, 8, or C has the effect of 0.

8, -, A, -,

5, 9, or D has the effect of 1.

C, -, E, -,

6, A, or E has the effect of 2.

7, B, or F has the effect of 3. (← setting prohibited)

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2. HARDWARE

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Examples of setting

(When expansion module 1 is skipped)

Set the rotary switch of expansion module 2

to setting position = 1. Do not change the

setting (setting position = 0) of expansion

module 3.

(When expansion module 1 and expansion

module 2 are skipped)

Set the rotary switch of expansion module 3

to setting position = 2.

(When expansion module 2 is skipped)

Set the rotary switch of expansion module 3

to setting position = 1. Do not change the

setting (setting position = 0) of expansion

module 1.

This function was not available initially, but was recently added. This

function became available, depending on the type of module, as indicated

below.

Expansion module B (DI/DO = 24/16, without a manual pulse gen-

A03B-0815-C003

erator interface)

Expansion module C (DO = 16, 24A output)

A03B-0815-C004

Expansion module D (analog input)

A03B-0815-C005

NOTE

To expansion module A (DI/DO = 24/16, with a manual pulse

generator interface) (A03B-0815-C002), a rotary switch is

added as the other modules are modified. However,

expansion module A is always installed at the location of

expansion module 1, so that the setting of expansion

module A need not be changed.

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2. HARDWARE

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2.14

REPLACING FUSES

WARNING

ON VARIOUS UNITS

Before replacement of a blown fuse, the cause of the blown

fuse must be corrected. So, fuse replacement work must be

done only by a person who is trained in the related

maintenance and safety requirements. When opening the

cabinet and replacing a fuse inside, be careful not to touch

the high-voltage circuits (marked with

and fitted with an

insulating cover). Touching the uncovered high-voltage

circuits presents an extremely dangerous electric shock

hazard.

For the specification of the fuse of each unit, see the list of consumables

in Appendix B.

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2. HARDWARE

B-64115EN/02

The peripheral units and the control unit have been designed on the

2.15

assumption that they are housed in closed cabinets. In this manual

ENVIRONMENTAL

“cabinet” refers to the following:

REQUIREMENTS

D Cabinet manufactured by the machine tool builder for housing the

OUTSIDE THE

control unit or peripheral units;

CONTROL UNIT

D Operation pendant, manufactured by the machine tool builder, for

housing the control unit or operator’s panel.

D Equivalent to the above.

The environmental conditions when installing these cabinets shall

conform to the following table. Section 3.3 describes the installation and

design conditions of a cabinet satisfying these conditions.

Operating

0°C to 58°C

Ambient

Temperature

Storage, Transport

-20°C to 60°C

Temperature

1.1_C/minute (maximum)

change

Normal

75%RH or less, no condensation

Humidity

Short period

95%RH or less, no condensation

(less than 1 month)

Operating

0.5 G or less

Vibration

Non-operating

1.0 G or less

Operating

Up to 1000 m

Meters above

sea level

Non-operating

Up to 12000 m

Normal machine shop environment

(The environment must be considered if the cabinets are in

Environment

a location where the density of dust, coolant, and/or organic

solvent is relatively high.)

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2. HARDWARE

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The CNC has been steadily reduced in size using surface-mount and

2.16

custom LSI technologies for electronic components. The CNC also is

ACTION AGAINST

designed to be protected from external noise. However, it is difficult to

NOISE

measure the level and frequency of noise quantitatively, and noise has

many uncertain factors. It is important to prevent both noise from being

generated and generated noise from being introduced into the CNC. This

precaution improves the stability of the CNC machine tool system.

The CNC component units are often installed close to the parts generating

noise in the power magnetics cabinet. Possible noise sources into the

CNC are capacitive coupling, electromagnetic induction, and ground

loops.

When designing the power magnetics cabinet, guard against noise in the

machine as described in the following section.

2.16.1

The cables used for the CNC machine tool are classified as listed in the

following table:

Separating Signal

Process the cables in each group as described in the action column.

Lines

Group

Signal line

Action

Primary AC power line

Bind the cables in group A sepa-

rately (Note 1) from groups B

Secondary AC power line

and C, or cover group A with an

electromagnetic shield (Note 2).

AC/DC power lines (containing the

See Subsec. 2.16.4 and con-

power lines for the servo and

nect spark killers or diodes with

spindle motors)

the solenoid and relay.

AC/DC solenoid

AC/DC relay

DC solenoid (24VDC)

Connect diodes with DC sole-

noid and relay.

Bind the cables in group B sepa-

DC relay (24VDC)

rately from group A, or cover

group B with an electromagnetic

DI/DO cable between the CNC

shield.

and power magnetics cabinet

Separate group B as far from

Group C as possible.

DI/DO cable between the CNC

It is more desirable to cover

and machine

group B with the shield.

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2. HARDWARE

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Group

Signal line

Action

Cable for position and velocity

Bind the cables in group C sepa-

feedback

rately from group A, or cover

group C with an electromagnet-

Cable between the CNC and

ic shield.

spindle amplifier

Separate group C as far from

Group B as possible.

Cable for the position coder

Be sure to perfrom shield pro-

Cable for the manual pulse gener-

cessing in Subsec. 2.16.5.

ator

Cable between the CNC and the

CRT/MDI

RS-232-C and RS-422 interface

cable

Cable for the battery

Other cables to be covered with the

shield

NOTE

The groups must be 10 cm or more apart from one another

when binding the cables in each group.

The electromagnetic shield refers to shielding between

groups with grounded steel plates.

Cabinet

Spindle

Servo

Control

amp.

unit

Cable of group B, C

Duct

To operator’s

panel,

motor, etc.

Cable of group A

Section

Group A

Group B, C

Cover

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2. HARDWARE

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2.16.2

The following ground systems are provided for the CNC machine tool:

Ground

(1) Signal ground system (SG)

The signal ground (SG) supplies the reference voltage (0 V) of the

electrical signal system.

(2) Frame ground system (FG)

The frame ground system (FG) is used for safety, and suppressing

external and internal noises. In the frame ground system, the frames,

cases of the units, panels, and shields for the interface cables between

the units are connected.

(3) System ground system

The system ground system is used to connect the frame ground

systems connected between devices or units with the ground.

Signal ground system

Frame ground sysytem

Power

Servo

CNC

System ground system

magnet-

amplifier

control

ics

unit

Operator’s

unit

panel

Machine

tool

Power

magnetics

cabinet

Distribution board

Notes on connecting the

D Connect the signal ground with the frame ground (FG) at only one

ground systems

place in the CNC control unit.

D The grounding resistance of the system ground shall be 100 ohms or

less (class 3 grounding).

D The system ground cable must have enough cross-sectional area to

safely carry the accidental current flow into the system ground when

an accident such as a short circuit occurs.

(Generally, it must have the cross-sectional area of the AC power cable

or more.)

D Use the cable containing the AC power wire and the system ground

wire so that power is supplied with the ground wire connected.

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2. HARDWARE

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2.16.3

Connecting the Ground

Terminal of the Control

Unit

For 7.2″/8.4″LCD/MDI (horizontal) type

Rear of the unit

For 7.2″/8.4″LCD/MDI (vertical) type

Ground cable

Wire rod with a

size of 2 mm² or more

Rear of the unit

Ground cable

Wire rod with a

size of 2 mm² or more

Connect the 0 V line in the control unit to the ground plate of the cabinet

via the protective ground terminal (shown in the above figure).

For the positions of ground terminals for other units, see the unit outline

drawing in the appendix.

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2. HARDWARE

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2.16.4

The AC/DC solenoid and relay are used in the power magnetics cabinet.

Noise Suppressor

A high pulse voltage is caused by coil inductance when these devices are

turned on or off.

This pulse voltage induced through the cable causes the electronic circuits

to be disturbed.

Notes on selecting the

D Use a spark killer consisting of a resistor and capacitor in series. This

spark killer

type of spark killer is called a CR spark killer.(Use it under AC)

(A varistor is useful in clamping the peak voltage of the pulse voltage,

but cannot suppress the sudden rise of the pulse voltage. FANUC

therefore recommends a CR spark killer.)

D The reference capacitance and resistance of the spark killer shall

conform to the following based on the current (I (A)) and DC

resistance of the stationary coil:

1) Resistance (R)

: Equivalent DC resistance of the coil

I²

2) Capacitance (C) :

(µF)

I : Current at stationary state of the coil

Equivalent circuit of the spark killer

Spark killer

relay

Motor

Spark killer

Mount the noise eliminator near a motor or a relay coil.

NOTE

Use a CR-type noise eliminator. Varistor-type noise

eliminators clamp the peak pulse voltage but cannot

suppress a sharp rising edge.

Diode (used for direct-current circuits)

Diode

Use a diode which can withstand a

voltage up to two times the applied

DC relay

voltage and a current up to two times

the applied current.

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2. HARDWARE

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2.16.5

The CNC cables that require shielding should be clamped by the method

shown below. This cable clamp treatment is for both cable support and

Cable Clamp and

proper grounding of the shield. To insure stable CNC system operation,

Shield Processing

follow this cable clamp method.

Partially peel out the sheath and expose the shield. Push and clamp by

the plate metal fittings for clamp at the part. The ground plate must be

made by the machine tool builder, and set as follows :

Ground plate

Cable

Metal fittings

for clamp

Fig. 2.16.5 (a) Cable clamp (1)

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2. HARDWARE

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Machine side

installation

ÇÇ

board

Control unit

ÇÇ

Ground plate

ÇÇ

Metal fittings

ÇÇ

for clamp

ÇÇ

Shield cover

ÇÇ

Fig. 2.16.5 (b) Cable clamp (2)

Prepare ground plate like the following figure.

Ground terminal

(grounded)

Hole for securing metal fitting clamp

Mount screw hole

Fig. 2.16.5 (c) Ground plate

For the ground plate, use a metal plate of 2 mm or thicker, which surface

is plated with nickel.

246

3. INPUT AND OUTPUT OF DATA

B-64115EN/02

INPUT AND OUTPUT OF DATA

After you change a SRAM module, you must set various data again.

This chapter describes the procedures to input and output the parameters,

the part programs and the tool offset values.

3.1

SETTING PARAMETERS FOR

INPUT/OUTPUT

249

3.2

INPUTTING/OUTPUTTING DATA

251

3.3

DATA INPUT/OUTPUT ON THE

ALL IO SCREEN

260

3.4

DATA INPUT/OUTPUT USING A

MEMORY CARD

275

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3. INPUT AND OUTPUT OF DATA

B-64115EN/02

3.1

SETTING

PARAMETERS

FOR INPUT/OUTPUT

D Setting procedure of

Parameter writing is enabled with following steps 1 to 3.

parameters

Set to MDI mode or emergency stop state.

OFFSET

Press

SETTING

key several times or press soft key [SETING] to display

SETTING (HANDY) screen.

Set the cursor to PARAMETER WRITE and, press

and

INPUT

keys in this order. Here alarm 100 will be displayed.

Press

SYSTEM

key several times to display the following screen.

PARAMETER (SETTING)

O1234N12345

0000

SEQ

INI ISO TVC

0001

FCV

0012

RMV

MIR

0020 I/O CHANNEL

0 T0000

REF **** *** ***

10:15:30

[ F SRH ][ READ

][ PUNCH ][DELETE ][

]

To make the cursor display in bit unit,

press the cursor key

Press soft key[(OPRT)] and the following operation menu

displayed.

1) Soft key [NO. SRH] : Searched by number.

Examination) Parameter number → [NO. SRH].

2) Soft key [ON : 1] : Item with cursor position is set to 1

(bit parameter)

3) Soft key [OFF : 0] : Item with cursor position is set to 0

(bit parameter)

4) Soft key [+INPUT] : Input value is added to the value at cursor

(word type)

5) Soft key [INPUT] : Input value is replaced with the value at

cursor (word type)

6) Soft key [READ] : Parameters are input from reader/puncher

interface.

7) Soft key [PUNCH] : Parameters are output to reader/puncher

interface.

249

FANUC Series 0i-MODEL C, Series 0i Mate-MODEL C. MAINTENANCE MANUAL - page 9