Maschinenfabrik Reinhausen TAPCON 250, Operating Instructions Manual

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11 Fault elimination
Maschinenfabrik Reinhausen GmbH 2022 152 8595017/00 EN TAPCON
®
250
11.6 Parallel operation faults
Characteristics/details Cause Remedy
Problem with CAN bus.
▪ Device not listed.
Device incorrectly connected. Check connections.
Connect as shown in the connection diagram.
Devices have the same CAN bus
address. Set different CAN bus addresses.
CAN bus address of device set to
"0". Set CAN bus address (anything but 0).
CAN module connection to CPU
interrupted Check connections.
Problem with parallel operation. Different parallel operation meth-
ods set for devices in the parallel
operation group. Check configuration.
Problem with master/follower par-
allel operation method. More than 1 device is configured
as master in the parallel operation
group. Check configuration.
No device configured as master
in the parallel operation group. Check configuration.
Invalid tap position of master or
follower. Check tap position.
Check wiring. Connect as shown in the connec-
tion diagram.
Problem with master/follower par-
allel operation method:
▪ Master/follower switching char-
acteristics set to "in synch".
Master and followers have differ-
ent tap positions. Check tap position capture or check why the
tap-change operation has not been undertaken
(e.g. mechanical defect), then perform one of
the following steps:
▪ Manually correct the master's tap position.
▪ Restart master.
▪ Set master/follower switching characteristics
to "sequential".
▪ Change master device to follower and define
a different device as the master.
Problem with circulating reactive
current minimization parallel oper-
ation method. Circulating reactive current can-
not be calculated. Check wiring. Connect as shown in the connec-
tion diagram.
Circulating reactive current block-
ing limit exceeded. Check configuration.
Table 49: Parallel operation faults