Table 5.1.17.1.-9 Event codes E17...E26
Channel
Event
Description
Weight-
ing
factor
Default
value
2
E17
DI1 activated
1
0
2
E18
DI1 deactivated
2
0
2
E19
DI2 activated
4
0
2
E20
DI2 deactivated
8
0
2
E21
DI3 activated
16
0
2
E22
DI3 deactivated
32
0
2
E23
DI4 activated
64
0
2
E24
DI4 deactivated
128
0
2
E25
DI5 activated
256
0
2
E26
DI5 deactivated
512
0
Default value of event mask 2V156
0
5.1.18.
Self-supervision (IRF) system
The relay is provided with an extensive self-supervision system which
continuously supervises the software and the electronics of the relay. It
handles run-time fault situations and informs the user about an existing fault
via a LED on the HMI and a text message on the LCD. The fault codes can
also be read via serial communication. There are two types of fault targets:
IRF targets and warnings.
Internal relay fault
When an internal relay fault preventing relay operation is detected, the relay
first tries to eliminate the fault by restarting. Only after the fault is found to be
permanent, the green target LED (ready) begins to blink and the self-
supervision output contact is activated. All other output contacts are returned
to the initial state and locked for the internal relay fault. Further, a fault target
message appears on the LCD, including a fault code.
IRF targets have the highest priority on the HMI. None of the other HMI
targets can override the IRF target. As long as the green target LED (ready) is
blinking, the fault target cannot be cleared. In case an internal fault
disappears, the green target LED (ready) stops blinking and the relay is
returned to the normal service state, but the fault target message remains on
the LCD until manually cleared.
The IRF code indicates the type of internal relay fault. When a fault appears,
the code is to be recorded and stated when ordering service. The fault codes
are listed in the following table:
108
REU 610
Voltage Relay
Technical Reference Manual - ANSI Version
1MRS755972
Summary of Contents for REU 610
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