8 Operation
Maschinenfabrik Reinhausen GmbH 2020 1813587317/21 EN TAPCON
®
If there is a tap difference between the master and followers, the master re-
frains from issuing any control commands to the motor-drive unit until all of
the followers have reached the same tap position. If the tap difference per-
sists for longer than the set delay time for parallel operation error messages,
the master triggers the Step difference to follower event.
You can explicitly designate the voltage regulators as master and followers,
or set automatic designation using the CAN bus address.
For the tap synchronization parallel operation method, you have to set the
following parameters:
Parameter Auto Master Follower
Activate parallel operation Yes
Parallel operation method Auto. tap syn-
chronization
Master Follower
CAN bus address Yes
Circul. reactive current
blocking limit
Optional, if master/follower current blocking is active
Master/follower current
blocking
Yes
Master/follower switching
characteristics
Yes
Maximum tap difference Yes (if follower) No Yes
Error if no communication
present
Yes
Behavior if no communi-
cation present
Yes
Parallel operation error
delay time
Yes
Table62: Parameter