ABB ACS580MV Commissioning Manual page 134

134 Option
ACS580MV Follower Parameter Settings — Speed Follower
61.1 M/F data 1 selection
61.2 M/F data 2 selection
61.3 M/F data 3 selection
25.8 Drooping rate
Configuration for switching master and follower
1. If choose one follower as forcing master, then this forcing master has high priority than
old master (old master is not effective). Other followers will follow the forced master.
2. When Master is faulty, one Follower can be set to force master, then the other
followers will follow the forced master.
3. Force master and follower can be change according to customer actual situations. But
we only can change the roles when drives are not running.
Here is an example:
a. Set BCU1 as master, BCU2 as follower running at speed mode, it follows master's
speed. BCU3 as follower running at torque mode, it follows master's torque.
b. SetBCU2as master, BCU1 as follower run at speed mode, it follows master's speed.
BCU3 as follower run at torque mode, it follows master's torque.
SW 16bit (Optional) Follower select the data
which transmit to the master, and they
User dependent
are effective when this follower is
selected by Master's P60.14
User dependent
User dependent The droop rate must be set for both
the Master and the Follower