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Parker 590+ series Frame 1, 2, 3, 4, 5, 6 & H. Product Manual (2012) - page 28

D-110 Programming

SELECT

Used to select a value from one of eight inputs,

depending on the value of the select input. A second

output is provided to allow the block to be used as

two banks of four inputs.

SELECT

Parameter

Tag

Range

INPUT 0 to INPUT 7

1156 to 1163

-32768.00 to 32768.00

Inputs to the select block

SELECT

1164

0 to 7

Determines which of the inputs is routed to OUTPUT 1 . In addition, if SELECT INPUT is in the range 0 to 3, INPUT 4 to INPUT 7 respectively is

routed to OUTPUT 2, otherwise OUTPUT 2 is unchanged.

OUTPUT 0

1165

.xx

Selected output

OUTPUT 1

1166

.xx

Alternative selected output from INPUT 4 to INPUT 7 if SELECT is less than 4.

Programming D-111

SEQUENCING

This function block contains all the parameters relating to the sequencing (start and stop) of

the drive.

SEQUENCING

Parameter

Tag

Range

AUX START

161

OFF / ON

Software Start/Run command. Auxiliary Start is ANDed with the Start input, C3, to generate Drive Start. This should normally be left ON.

AUX JOG

227

OFF / ON

Software Jog command. Auxiliary Jog is ANDed with the Jog input, Tag 496 (by default C4), to generate Drive Jog. This should normally be left

ON.

AUX ENABLE

168

OFF / ON

Software Enable command. Auxiliary Enable is ANDed with the Enable input, Tag 497 (by default C5), to generate Drive Enable. This should

normally be left ON.

D-112 Programming

SEQUENCING

Parameter

Tag

Range

JOG/SLACK

496

OFF / ON

Main jog input which is connected to DIGITAL INPUT C4 by default. The Jog input is ANDed with Auxiliary Jog input, Tag 227, to generate Drive

Jog.

ENABLE

497

OFF / ON

Enable input which is connected to DIGITAL INPUT C5 by default. The Enable input is ANDed with Auxiliary Enable input, Tag 168, to generate

Drive Enable.

REM.SEQ.ENABLE

535

FALSE / TRUE

(Refer to Chapter 4: "External Control of the Drive"). When enabled, the drive will accept Sequencing commands exclusively from the REM.

SEQUENCE parameter, Tag 536.

FALSE - disables REM. SEQUENCE

TRUE - enables REM. SEQUENCE

REM.SEQUENCE

536

0x0000 to 0xFFFF

A control word that allows the device to be operated remotely over a field bus.

REM. SEQ. ENABLE must be TRUE to enable this function. (Refer to Chapter 4: "External Control of the Drive")

COMMS TIMEOUT

1204

0.0 to 60.0 s

A watchdog timeout that may be used when the drive is in remote sequencing mode. The watchdog feature is enabled by selecting a non-zero time in

this parameter. The watchdog is reset every time the REM.SEQUENCE word, (Tag 536), is written.

SEQ STATUS

537

0x0000 to 0xFFFF

An data word that reports the status of the important system flags that can be read over a field bus. (Refer to Chapter 4: "External Control of the

Drive")

DRIVE START

OFF / ON

Logical OR of the START and JOG inputs.

CONTACTOR CLOSED

FALSE / TRUE

When ON, the main contactor coil is energised. Refer to Terminal Information for D5 & D6 in Appendix E: "Technical Specifications" - Terminal

Information.

DRIVE ENABLE

FALSE / TRUE

Drive speed and current loop are enabled/quenched.

DRIVE RUNNING

376

FALSE / TRUE

When TRUE, the stack is switched on and enabled.

Programming D-113

SEQUENCING

Parameter

Tag

Range

SYSTEM RESET

374

FALSE / TRUE

Set for one cycle as the drive is enabled.

READY

125

FALSE / TRUE

The drive is ready to accept an enable signal.

SEQ STATE

114

See below

0: SEQ INIT

1: SEQ INIT

2: SEQ HOLD

3: SEQ STANDBY

4: SEQ PRE READY

5: SEQ READY

6: SEQ AUTOTUNING

7: SEQ RUN

8: SEQ AT ZERO SPD.

9: SEQ QUENCH

10: SEQ PROGRAM STOP

11: SEQ STOP

12: SEQ DELAY STOP

13: CURRENT DECAY

14: SEQ COAST STOP

15: SEQ ERROR

START (C3)

OFF / ON

State of the Start/Run terminal.

PROGRAM STOP

FALSE / TRUE

State of program stop (Terminal B8). When B8 is at 24V, then PROGRAM STOP is FALSE.

COAST STOP

525

FALSE / TRUE

State of coast stop (Terminal B9). When B9 is at 24V, then COAST STOP is FALSE.

D-114 Programming

SETPOINT SUM

Use this menu to sum and scale up

to three analog inputs to produce

the SPT. SUM output.

INPUT 0 and INPUT 1 have

individual ratio and divider scalers,

and signs. The inputs have

symmetrical limits set by LIMIT.

INPUT 2 has no scaling or limits.

The output, after INPUT 0, INPUT 1

and INPUT 2 are summed, is also

clamped by LIMIT before producing

the SPT. SUM output.

SETPOINT SUM

Parameter

Tag

Range

INPUT 0

309

-300.00 to 300.00 %

Input 0 value.

INPUT 1

701

-300.00 to 300.00 %

Input 1 value.

INPUT 2

423

-300.00 to 300.00 %

Input 2 value.

RATIO 1

-3.0000 to 3.0000

Multiplier term for INPUT 1.

RATIO 0

208

-3.0000 to 3.0000

Multiplier term for INPUT 0.

DIVIDER 1

419

-3.0000 to 3.0000

Divider scaling for INPUT 1. Dividing by 0 (zero) results in a zero output.

DIVIDER 0

420

-3.0000 to 3.0000

Divider scaling for INPUT 0. Dividing by 0 (zero) results in a zero output.

SIGN 1

NEGATIVE / POSITIVE

Polarity for INPUT 1.

SIGN 0

292

NEGATIVE / POSITIVE

Polarity for INPUT 0.

Programming D-115

SETPOINT SUM

Parameter

Tag

Range

LIMIT

375

0.00 to 200.00 %

The Setpoint Sum programmable limit is symmetrical and has the range 0.00% to 200.00%. The limit is applied both to the intermediate results of

the RATIO calculation and the total output.

INPUT 2

INPUT 1

INPUT 0

LIMIT

-1

SPT SUM OUTPUT

.xx %

The sum of input 0, 1 and 2 after the limit clamp.

STPT SUM 1 OUT 1

702

.xx %

An additional output provided to gain access to Input 1 channel sub-calculations. The result of (INPUT 1 x RATIO 1) / DIVIDER 1 clamped to

within ± LIMIT.

STPT SUM 1 OUT 0

703

.xx %

An additional output provided to gain access to Input 0 channel sub-calculations. The result of (INPUT 0 x RATIO 0) / DIVIDER 0 clamped to

within ± LIMIT.

D-116 Programming

Functional Description

RATIO 0 [447]

INPUT 0 [444]

OUTPUT 0 [491]

DIVIDER 0 [448]

INPUT 2 [445]

MAIN OUTPUT [451]

RATIO 1 [446]

INPUT 1 [443]

OUTPUT 1 [492]

DIVIDER 1 [466]

LIMIT [449]

Programming D-117

SPEED LOOP

Use this block to tune the speed loop PI to produce a current demand.

This function block has five main functions:

Combining the 4 speed setpoints into a single speed setpoint.

Note that the speed demand is created from the combined speed setpoints and

modified by any prevailing stop condition according to the STOP RATES

function block settings.

Selection of the speed feedback method.

ZERO SPD OFFSET from the CALIBRATION function block is applied to

the selected speed feedback to null out any remaining feedback at zero actual

speed.

Implementation of the PI speed controller.

SPEED DEMAND is summed algebraically with SPEED FEEDBACK to

produce SPEED ERROR. When the drive is enabled, SPEED ERROR is

controlled by the PI loop. The resulting current demand signal is routed to the

CURRENT LOOP function block and to the ADVANCED::ZERO SPD.

QUENCH sub-menu.

The PI output is accessible via Tag No. 356, TOTAL I DMD. This point is

before the I Limit clamps and the summing of the additional current demand.

(This tag is not visible on the MMI).

Speed controller gain and integral time constant profiling with speed.

The gains change when the motor speed feedback reaches the thresholds set

by SPD BRK 1 (LOW) and SPD BRK 2 (HIGH).

• At or below SPD BRK 1 (LOW), the speed loop uses the PROP. GAIN and INT. TIME CONST. values as its PI loop gains.

• Between SPD BRK 1 (LOW) and SPD BRK 2 (HIGH), profiling occurs and the speed loop gains are determined by another parameter

value (according to the selection of the MODE parameter).

• Above SPD BRK 2 (HIGH), the SPD. PROP. GAIN and SPD. INT. TIME settings are used.

MODE selects the parameter for profiling the speed loop PI gains when the motor speed is between the two speed breakpoints.

D-118 Programming

Zero speed/current disabling of thyristor firing

The current loop is disabled when SPEED DEMAND, SPEED FEEDBACK and CURRENT DEMAND have all dropped to the threshold

levels set by ZERO SPD. LEVEL and ZERO IAD LEVEL.

This is similar to Standstill logic (it stops making current but the contactor stays energised) except that the speed loop remains enabled and

this will cause the current loop to unquench very quickly.

SPEED LOOP

Parameter

Tag

Range

SPD PROP GAIN

0.00 to 200.00

Speed loop PI proportional gain adjustment.

SPD INT TIME

0.001 to 30.000 s

Speed loop PI integral gain adjustment.

INT. DEFEAT

202

OFF / ON

When ON it inhibits the integral part of the speed loop PI control to give proportional only control.

SPEED FBK FILTER

547

0.000 to 1.000

(SPD.FBK.FILTER)

A simple filter function that is applied to speed feedback to reduce ripple caused by low line count encoders and noisy tachos. A value of 0 disables

the filter action ,and 1.00 is the maximum value. A typical value would be between 0.5 and 0.75.

INCREASING THE FILTER VALUE MAY MAKE THE SPEED LOOP UNSTABLE.

The filter time constant τ in milliseconds can be calculated from the following equation:

Where α is the value of SPD FBK FILTER. A value of 0.5 equates to a filter time of 4.8ms, 0.8 to 14.7ms, and 0.9 to 31.2ms.

SETPOINT 1

289

-105.00 to 105.00 %

Speed Setpoint 1 (Default Setpoint Sum 1 O/P).

SIGN 2 (A3)

NEGATIVE / POSITIVE

Speed Setpoint 2 Sign.

Programming D-119

SPEED LOOP

Parameter

Tag

Range

RATIO 2 (A3)

-3.0000 to 3.0000

Speed Setpoint 2 Ratio.

SETPOINT 3

291

-105.00 to 105.00 %

Speed Setpoint 3 (Default Ramp O/P).

SETPOINT 4

-105.00 to 105.00 %

Speed Setpoint 4 (Default 5703 I/P).

MAX DEMAND

357

0.00 to 105.00 %

Sets the maximum input to the speed loop. It is clamped at 105% to allow for overshoot in the external loops.

MIN DEMAND

358

-105.00 to 105.00 %

Sets the minimum input to the speed loop.

PRESET TORQUE

595

-200.00 to 200.00 %

The PRESET TORQUE is pre-loaded into the speed loop integral store as the speed loop in enabled. This is scaled by PRESET T SCALE.

This may be used to pre-load the output of the speed loop in elevator/hoist applications to prevent the load from falling back when the brake is

released. PRESET T SCALE may be used in situations where the load may vary.

PRESET T SCALE

604

-200.00 to 200.00 %

Scaler for PRESET TORQUE.

MODE

268

See below

Selects the speed breakpoint input signal.

0 : DISABLED

1 : SPD FBK DEP

Speed Feedback Dependent

2 : SPD ERR DEP

Speed Error Dependent

3 : CUR DMD DEP

Current Demand Dependent

SPD BRK 1 (LOW)

269

0.00 to 100.00 %

Speed breakpoint 1 to start gain profiling.

SPD BRK 2 (HIGH)

270

0.00 to 100.00 %

Speed breakpoint 2 to stop gain profiling.

D-120 Programming

SPEED LOOP

Parameter

Tag

Range

PROP. GAIN

271

0.00 to 200.00

Proportional gain used below SPD BRK 1 (LOW)

INT. TIME CONST.

272

0.001 to 30.000 s

Integral time constant used below SPD BRK 1 (LOW)

I GAIN IN RAMP

274

0.0000 to 2.0000

This scales the integral gain when the drive is ramping. When RAMPING (Tag No. 113) is TRUE, the integral gain from ADAPTION is switched

through the I GAIN IN RAMP scaler. This can be used to help prevent integral wind-up while the drive is ramping (particularly high inertia loads).

ZERO SPD. LEVEL

284

0.00 to 200.00 %

Sets the threshold of SPEED DEMAND and SPEED FEEDBACK for suspending the current output.

ZERO IAD LEVEL

285

0.00 to 200.00 %

Sets the current demand threshold for suspending the current output.

SPEED ERROR FILTERED

297

.xx %