MR TAPCON 250 - U Bandwidth Monitoring

9 Operation
Maschinenfabrik Reinhausen GmbH 2022 1538595028/00 EN TAPCON
®
250
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.
Error if no communication present
You can use this parameter to set whether it is an error if the device does
not receive any messages via the CAN bus or if there are no other CAN bus
participants in the same parallel operation group.
Parallel operation error delay time
You can use this parameter to set the delay time for a parallel operation er-
ror message so that brief fault messages are not received if the motor-drive
units involved in the parallel operation have different runtimes.
9.3.4 U bandwidth monitoring
The following limit values are monitored via bandwidth monitoring. The set
bandwidth (upper/lower) of the voltage regulation is used for this purpose.
Behavior If the measured value is higher than the upper limit or lower than the lower
limit, the device triggers the Upper bandwidth limit value / Lower bandwidth
limit value message.
The "Function monitoring" function is used to detect long periods when val-
ues are above or below the bandwidth. Long periods when values are above
or below the bandwidth indicate a problem with the device function because
the device is not able to correct the control deviation.
If the value is above or below the set bandwidth, the Function monitoring
event is displayed after the set delay time for function monitoring has
elapsed. The event is automatically acknowledged as soon as the measured
value is back within the set bandwidth.
The following parameters are available for setting function monitoring:
▪ Function monitoring
▪ Hysteresis
▪ Delay time
1. Go to Settings > Parameters > On-load tap-changer regulator > U
bandwidth monitoring.
2. Select the desired parameter.
3. Set the desired parameter.
4. Press the Accept button to save the modified parameter.
You can set additional parameters for each limit value: