ABB ACS 600 Manual del propietario

ACS 600 Supplement to Firmware Manual

Standard Application Program 5.0

Master/Follower

Application Macro

Master/Follower

Application Macro

Supplement to Firmware Manual

Standard Application Program 5.0

3AUA489002B6145 R0125 Rev B

EFFECTIVE: 1.1.1999

SUPERSEDES: 1997-06-09

ACS 600 Master/Follower Application Macro iii

Table of Contents

Chapter 1 – Overview

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

Checklist for a Quick Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Chapter 2 – Installation and M/F Link Specification

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

Master/Follower Link. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

External Control Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

Master/Follower Link Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

Chapter 3 – Operation

Master Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Control and Supervision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Master/Follower Connection Activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Follower Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

Master/Follower Connection Activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

Follower Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Follower Supervision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Pulse Encoder Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6

Chapter 4 – Parameters

Control Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

Group 60 MASTER/FOLLOWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4

Appendix A – Control Signal Connections

Master Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Follower Station, Torque Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Follower Station, Speed Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Appendix B – Parameter Settings

Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Follower Torque Control Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Follower Speed Control Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Appendix C – Examples

iv ACS 600 Master/Follower Application Macro

ACS 600 Master/Follower Application Macro 1-1

Chapter 1 – Overview

General

The Master/Follower Application macro is designed for applications in

which the system is run by several ACS 600 drives and the motor

shafts are coupled to each other via gearing, chain, belt etc. Thanks to

the Master/Follower macro the load can be evenly distributed between

the drives.

The external control signals are connected to the Master ACS 600 only.

The Master controls the Followers via a fibre optic serial

communication link.

The Master station is typically speed controlled and the other drives

follow its torque or speed reference. In general:

• Torque control of the Follower should be used when the motor

shafts of the Master and Follower drives are coupled fixedly to each

other by gearing, a chain etc. No speed difference between the

drives is possible (see Figure 1-1).

• Speed control of the Follower should be used when the motor shafts

of the Master and the Follower drives are coupled flexibly to each

other. A slight speed difference between the drives is possible (see

Figure 1-1). When both the Master and Followers are speed-

controlled, drooping is also typically used (Parameter 60.06 DROOP

RATE).

In some applications both speed control and torque control of the

Followers are required. In those cases a flying change between speed

and torque control can be performed via a digital input of the Follower

(see

Chapter 3 – Operation

Figure 1-1 Master/Follower applications, schematic representation.

Mains 33

Speed-Controlled Master

Follower Follows the Torque Reference

of the Master

External Con-

trol Signals

Mains 3

22 Master/Fol-

lower Link

Follower Fault

Supervision

22 Master/Fol-

lower Link

Follower Fault

Supervision

External Con-

trol Signals

Mains 3

Speed-Controlled Master

Follower Follows the Speed Reference

of the Master

Mains

ACS 6 00

Chapter 1 – Overview

1-2 ACS 600 Master/Follower Application Macro

Checklist for a

Quick Start-up

The installation and start-up procedure of the ACS 600 is explained in the

Start-up Guide

and the

Hardware Manual

. An additional checklist for the

Master/Follower application is given below:

Switch off the power supplies of the ACS 600 units. Wait for five

minutes to ensure that the intermediate circuits are discharged.

Build the Master/Follower Link. See

Chapter 2 – Installation and M/F

Link Specification

Connect the external control signals to the Master. Wire the Run

enable signal of the Master via the fault indicating relay output of the

Followers. See

Chapter 2 – Installation and M/F Link Specification

Switch on the power supplies.

Activate the M/F Macro in all ACS 600 drives (Parameter 99.02).

On the Master ACS 600: Change Parameter 60.01 MASTER LINK

MODE to MASTER.

On the Follower ACS 600: Adjust the parameters according to the

basic set suitable for your application. The Follower Torque Control

and Follower Speed Control parameter sets are given in

Appendix B

– Parameter Settings.

Switch all ACS 600 units to external control with the key on the

Control Panel (there should be no L on the first row of the display).

Perform a test run with the motors still de-coupled from the driven

machinery. Give the control signals both through the Master analogue/

digital inputs and from the Master Control Panel. Check the correct

operation of the Master and Follower drives visually (motor & Control

Panel display):

• Start, Stop, Direction and Run enable signals given to the Master

are received by all drives.

• The Master follows the speed reference.

• The Follower follows Master speed reference or torque reference. In

torque control, the window control restricts the excessive speed rise

of the motor. Thus the actual speed of the unloaded Follower is

greater than that of the Master, but does not reach the maximum

speed limit.

Disconnect the Control Panels from the Follower drives to avoid

accidental use. See CAUTION! below.

Switch off the power supplies.

Couple the motor shafts to the driven machinery and switch on the

power supplies.

CAUTION! To avoid contradictory control, the drives coupled to the same

machinery should receive the external control signals only via the Master.

As general rules:

– Connect all external control signals to the Master drive only.

– Never control the Follower(s) with the Control Panel or through a fieldbus

system.

LOC

REM

ACS 600 Master/Follower Application Macro 2-1

Chapter 2 – Installation and M/F Link Specification

Installation

WARNING! Before installation, switch off the ACS 600 power supply.

Wait for five minutes to ensure that the intermediate circuit is

discharged. Switch off all dangerous voltages connected from external

control circuits to the relay output terminals of the ACS 600.

WARNING! Do not touch the printed circuits. They are extremely

sensitive to electrostatic discharge.

Master/Follower Link

Figure 2-1 Connections. T = Transmitter; R = Receiver; NAMC = Application and Motor Control Board.

(Please note that channels CH0/CH2/CH3 are located on the optional NDCO-03 board.)

The ring configuration can be used in most applications. A parallel

connection can also be implemented by using a branching card. (For

more information, contact your local ABB representative.)

Handle the fibre optic cables with care. Do not touch the ends with bare

hands, as fibre optic cables are extremely sensitive to dirt.

Note:

On drives with the Master/Follower Application Macro, the

NTAC-02 Pulse Encoder Interface Module (if present) must be

connected to NAMC channel CH1 instead of CH2. See Chapter 3,

section

Pulse Encoder Connection.

Note:

Fieldbus adapter modules can be used for monitoring

(but not for controlling) the Follower stations.

ACS 60x

NAMC-XX

Follower

ACS 60x

NAMC-XX

Follower

ACS 60x

NAMC-XX

V18

V17

CH2

Master

V18

V17

CH2

V18

V17

CH2

Chapter 2 – Installation and M/F Link Specification

2-2 ACS 600 Master/Follower Application Macro

External Control

Connections

The default parameter settings of the Master/Follower macro define the

control connections according to the circuit diagram below.

Figure 2-2 External control connections for the Master station. The markings of the NIOC board

terminals are given above. Note that the external input/output signals of ACS 601 and ACS 604 units

connect directly to the NIOC board I/O terminal blocks. On ACS 607, the I/O terminals of the NIOC

board are optionally wired to a separate terminal block (X2) at the factory. See the ACS 604/607

Installation and Start-up Manual for the corresponding terminal markings.

Relay output 2

VREF

GND

AI1+

AI1-

AI3+

AI3-

+24 DVDC

DI1

DI2

DI3

DI4

DI5

DI6

AO1+

AO1-

AO2+

AO2-

RO11

RO12

RO13

RO21

RO22

RO23

RO31

RO32

RO33

Terminal Block X21 Function

Reference voltage 10 VDC

External reference 1 (Speed reference)

Not specified in this application

+24 VDC max. 100 mA

STOP/START

FORWARD/REVERSE

RUN ENABLE4)

CONST SPEED SEL2)

Speed

Current

Relay output 1

Relay output 3

rpm

ACCEL/DECEL 1/2 SEL3)

EXT1/EXT2 SELECT1)

Terminal Block X25

Terminal Block X26

Terminal Block X27

AI2+

AI2- External reference 2

9DGND Digital ground

Terminal Block X22

+24 VDC

GND Auxiliary voltage output 24 VDC

Terminal Block X23

Ready

Running

No Fault

1) Changes external speed reference source. In most

cases this is not required (can be left unconnected).

2) Open switch = Constant speed is not activated.

Closed switch = Constant speed defined with Parameter

12.05 replaces the external speed reference.

3) Changes the speed acceleration/deceleration ramp.

Note:

Does not change the Follower ramp. In most

cases should be left unconnected.

4) See Follower fault information wiring. Note that the

external input/output signals of ACS 601 and ACS 604

units connect directly to the NIOC board I/O terminal

blocks. On ACS 607, the I/O terminals of the NIOC

board are optionally wired to a separate terminal block

max. 10 mA

0 ... 10 V

0 ... 20 mA

0 ... 20 mA <–> 0 ... Motor nom. speed

0 ... 20 mA <-> 0 ... Motor nom. current

max. 250 mA

READY

RUNNING

FAULT (–1)

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