MR ECOTAP VPD CONTROL PRO, Operating Instructions Manual

Page: 105 / 192

8 Operation
Maschinenfabrik Reinhausen GmbH 2018 105 5252433/02 EN ECOTAP
®
VPD
®
CONTROL PRO
To activate circulating reactive current blocking for the tap synchronization
parallel operation method, proceed as follows:
1. Go to Settings > Parameters > Parallel operation > Master/follower
current blocking .
2. Select the desired option.
3. Press the Accept button to save the modified parameter.
8.9.2.9 Setting master/follower switching characteristics
You can use this parameter to set the switching characteristics for the tap
synchronization parallel operation method.. You can select the following op-
tions:
▪ Sequentially: When a tap-change operation takes place, the master com-
municates its new tap position to the followers via the CAN bus as soon
as the master has completed its tap-change operation. The tap-change
operations of the master and followers thereby take place one after an-
other (sequentially).
▪ In synch: When a tap-change operation takes place, the master communi-
cates its new tap position to the followers via the CAN bus as the master
starts its tap-change operation. The tap-change operations of the master
and followers thereby take place at almost the same time (in synch).
To set the master/follower switching characteristics, proceed as follows:
1. Go to Settings > Parameters > Parallel operation > Master/follower
switching characteristics .
2. Select the option you want.
3. Press the Accept button to save the modified parameter.
8.9.2.10 Setting the maximum tap difference
You can use this parameter to set the maximum permissible tap difference
between followers and master on the follower.
If the tap difference is greater than the set maximum tap difference to the
master, the follower blocks and no longer attempts to attain the master's tap
position. After the set delay time for parallel operation error messages has
elapsed, the follower issues the
Permitted tap difference to master exceeded
message.
To set the maximum permissible tap difference, proceed as follows:
1. Go to Settings > Parameters > Parallel operation > Maximum tap dif-
ference .
2. Enter the maximum tap difference.
3. Press the Accept button to save the modified parameter.