Chapter 3 – Operation
3-2 ACS 600 Master/Follower Application Macro
Follower Station
The default settings of the Master/Follower macro parameters meet the
requirements of a typical Master station. The settings have to be
adjusted for the Follower station(s).
The parameters that typically need to be adjusted on the Follower
stations are listed in Table 3-1. The given settings meet the
requirements of a typical Follower station. The Speed Control column
gives the settings which are valid for a drive that follows the speed
reference of the Master. The Torque Control column gives the settings
which are valid for a drive that follows the torque reference of the
Master.
Table 3-1 The Follower Speed Control settings and Follower Torque
Control Settings. See also Appendix B – Parameter Settings.
Note:
In some applications, both speed control and torque control of the Followers are
required, e.g. if it is necessary to accelerate all drives along the same speed ramp up to
a certain speed before torque control can be implemented. In those cases, a “flying”
switching between speed and torque controls is required. The switching can be done
through a digital input of the Follower. A solution is to set Parameter 11.02 EXT1/EXT2
to DI3, 60.02 TORQUE SELECTOR to TORQUE and 60.03 WINDOW SEL ON to OFF.
With these settings,
• 0 V d.c connected to DI3 External control location 1 is selected and the Follower
follows the speed reference of the Master. Window control is disabled.
• +24 V d.c. connected to DI3 External control location 2 is selected and the
Follower follows the torque reference of the Master. Window control is enabled.
Master/Follower
Connection Activation
To activate the connection to the Master stations, Parameter 60.01
MASTER LINK MODE must be changed to FOLLOWER.
Parameter Speed Control Torque Control
10.01 EXT1 STRT/STP/DIR COMM. MODULE COMM. MODULE
10.02 EXT2 STRT/STP/DIR COMM. MODULE COMM. MODULE
10.03 DIRECTION REQUEST REQUEST
11.02 EXT1/EXT2 SELECT EXT1 EXT2
11.03 EXT REF1 SELECT COMM. REF COMM. REF
11.06 EXT REF2 SELECT COMM. REF COMM. REF
12.01 CONST SPEED SEL NOT SEL NOT SEL
16.01 RUN ENABLE COMM. MODULE COMM. MODULE
60.01 MASTER LINK MODE FOLLOWER FOLLOWER
60.02 TORQUE SELECTOR SPEED ADD
60.03 WINDOW SEL ON NO YES
60.04 WINDOW WITH POS 0.0 rpm 30.0 rpm
60.05 WINDOW WITH NEG 0.0 rpm 30.0 rpm
60.06 DROOP RATE 1.0 % 0.0 %
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