5 Operation
Maschinenfabrik Reinhausen 201318 2349487/01 ENTAPGUARD® 260
If a red event appears, the "Red alarm message" relay is triggered. This
blocks further tap-change operations in the motor-drive unit.
NOTICE
Damage to the transformer and/or on-load tap-changer after a
red event.
Performing additional tap-change operations on the motor-drive unit without
analyzing the cause of the red event can lead to on-load tap-changer and/or
transformer damage.
► Check what caused the red event, decide whether to continue operat-
ing the on-load tap-changer depending on the cause.
► Contact Maschinenfabrik Reinhausen's Technical Service department.
Displaying event messages
The recorded event messages can be displayed in an overview.
To call up the event overview, proceed as follows:
► > Info > Events.
ð Event overview.
By pressing the
key, you can display the events in detail. In doing so,
the red events are displayed first and then the yellow events.
Acknowledging event messages
The monitoring system sorts the events into confirmable events and non-
confirmable events.
As a rule, non-confirmable events are events that are based on signals on
inputs. These events acknowledge themselves as soon as the signal reas-
sumes a valid value. All other events have to be acknowledged by the oper-
ator.
If you acknowledge an event message, this is no longer displayed in the
event overview. If the cause of the event message is not remedied, the
event message reappears immediately.
Contact Maschinenfabrik Reinhausen before acknowledging a red event. If
the event message has been caused by a hardware defect, you first have to
remedy the defect before acknowledging the event message.
To acknowledge an event, proceed as follows:
5.2.1
5.2.2
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