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.
Chapter 1 – Overview Checklist for a 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 Quick Start-up 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.
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.
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. ACS 600 Master/Follower Application Macro...
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Figure 2-3 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 (X2) at the factory. ACS 600 Master/Follower Application Macro...
Chapter 2 – Installation and M/F Link Specification Master/Follower Link Size of the Link: One Master and max. 10 Follower stations. If more than 10 followers are required, an ABB representative should be Specification consulted. Transmission medium: Fibre Optic Cable.
Control Panel. To switch between local (i.e. Control Panel) and external control, use the LOC/REM key on the Panel. “L” on the first row of the display indicates that the ACS 600 is in local control. There are two analogue outputs and three relay outputs for external supervision purposes.
External control location 2 is selected and the Follower follows the torque reference of the Master. Window control is enabled. Master/Follower To activate the connection to the Master stations, Parameter 60.01 Connection Activation MASTER LINK MODE must be changed to FOLLOWER. ACS 600 Master/Follower Application Macro...
Reference levels +20000 and –20000. See the examples in Figure 3-1 below. In the Follower Reference 1 is decoded as follows: 20000 corresponds to the value of Follower Parameter 11.05 EXT REF1 MAXIMUM. ACS 600 Master/Follower Application Macro...
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20.02 MAXIMUM SPEED 10000 (2500 rpm) 0 rpm 0 rpm -2500 rpm -10000 20.01 MINIMUM SPEED –(11.05 EXT REF1 MAXIMUM) -20000 (-5000 rpm) Figure 3-1 Relation between the speed references of the Master and the Follower. ACS 600 Master/Follower Application Macro...
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Control Panel. To switch between local (i.e. Control Panel) and external control, the LOC/REM key of the Panel is pressed. Letter L on the first row of the display indicates that the ACS 600 is in local control. By default the Panel gives speed reference.
Chapter 3 – Operation Follower Supervision There are two analogue outputs and three relay outputs in the ACS 600 for the external supervision purposes. By default, analogue output AO1 gives the motor speed and AO2 the motor current as 0 to 20 mA current signal.
Control settings and Follower Torque Control settings are given in Appendix B – Parameter Settings. Control Connections The parameter values can only be altered with the ACS 600 stopped. 10.01 EXT1 This parameter defines the source of Start, Stop and Direction STRT/STP/DIR commands for External control location 1 (EXT1).
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External control location for both the Start/Stop/Direction commands and the reference. EXT1; EXT2; DI1 ... DI6; COMM. MODULE See ACS 600 Programming Manual . DI3 is the default setting in the Master/Follower Macro. The selection COMM. MODULE is not used with the Master/Follower Application macro.
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Analogue input AI1 are the sources of External reference 2. In the Follower, Reference 2 received from the Master is multiplied with the % value converted from the analogue signal connected to AI1. ACS 600 Master/Follower Application Macro...
Follower stations through channel CH2. The drive behaviour depends on the settings of Parameters 10.01 EXT1 STRT/ STP/DIR, 10.02 EXT2 STRT/STP/DIR, 11.03 EXT REF1 SELECT, 11.06 EXT REF2 SELECT, 16.01 RUN ENABLE and 16.04 FAULT ACS 600 Master/Follower Application Macro...
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Figure 4-1 Functions available for the speed/torque control loop tuning: Window Control, Torque Selector and Droop Rate setting. See Parameters 60.02 to 60.06 below. For information on the speed controller tuning, see the Firmware Manual , Parameter Group 23 Speed Control. ACS 600 Master/Follower Application Macro...
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Note: If TORQUE is selected, the ACS 600 does not restrict the speed variation as long as the speed is within the limits defined with Parameters 20.01 MINIMUM SPEED and 20.02 MAXIMUM SPEED.
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The speed controller is evoked only if: • the speed error exceeds the value of Parameter 60.04 WINDOW WIDTH POS or • the absolute value of the negative speed error exceeds the value of Parameter 60.05 WINDOW WIDTH NEG. ACS 600 Master/Follower Application Macro...
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(see Figure 4-2). If window control were inactivated, the motor speed would rise until a speed limit of the ACS 600 were reached. (Parameters 20.01 MINIMUM SPEED and 20.02 MAXIMUM SPEED define the speed limits.)
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2. Load loss occurs. Follower actual speed starts to rise. 3. The speed increases until the maximum speed limit of the ACS 600 is reached (Parameter 20.02 MAXIMUM SPEED). 3. The speed increases until the absolute value of the negative Internal torque reference is restricted to stop the speed speed error exceeds WINDOW WIDTH NEG.
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The droop rate is set as % of drive maximum speed. The actual speed decrease in a certain operating point depends on the droop rate setting and the internal torque reference of the drive (speed controller output). 4-10 ACS 600 Master/Follower Application Macro...
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The format is as follows: (x)xyy, where (x)x = Actual Signal or Parameter Group, yy = Actual Signal or Parameter Index. The default value is 213, which denotes Actual Signal Group 2, Index 13, i.e. 2.13 TORQ REF USED. ACS 600 Master/Follower Application Macro 4-11...
DIR 10.01 DIR 10.02 10.03 16.01 Selection Figure A-1 Control Signal connections for the Master station when the default settings of the parameters are valid and local control is active (Control Panel is the control device). ACS 600 Master/Follower Application Macro...
DIR 10.01 DIR 10.02 10.03 16.01 Selection Figure A-2 Control signal connections for the Follower station when the Follower Torque Control settings of the parameters are valid and local control (Control Panel) is not active. ACS 600 Master/Follower Application Macro...
DIR 10.01 DIR 10.02 10.03 16.01 Selection Figure A-3 Control signal connections for the Follower station when the Follower Speed Control settings of the parameters are valid and local control (Control Panel) is not active. ACS 600 Master/Follower Application Macro...
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Appendix A – Control Signal Connections This page is intentionally left blank. ACS 600 Master/Follower Application Macro...
22.02 ACCEL TIME 1 3.00 s 22.03 DECEL TIME 1 3.00 s 22.04 ACCEL TIME 2 60.00 s 22.05 DECEL TIME 2 60.00 s 22.06 ACC/DEC RAMP SHPE 0.00 s 22.07 EM STOP RAMP TIME 3.00 s ACS 600 Master/Follower Application Macro...
3.00 s 98.06 AI/O EXT MODULE 22.04 ACCEL TIME 2 60.00 s 98.07 COMM PROFILE ABB DRIVES 22.05 DECEL TIME 2 60.00 s 22.06 ACC/DEC RAMP SHPE 0.00 s 22.07 EM STOP RAMP TIME 3.00 s ACS 600 Master/Follower Application Macro...
3.00 s 98.06 AI/O EXT MODULE 22.04 ACCEL TIME 2 60.00 s 98.07 COMM PROFILE ABB DRIVES 22.05 DECEL TIME 2 60.00 s 22.06 ACC/DEC RAMP SHPE 0.00 s 22.07 EM STOP RAMP TIME 3.00 s ACS 600 Master/Follower Application Macro...