ABB REU 523 - Event Codes

1MRS 750942-MUM
Combined Overvoltage and Undervoltage Relay
Technical Reference Manual
REU 523
37
4.1.10.3. Event codes
Special codes have been determined to represent certain events, such as start and
tripping of protection stages and different states of output signals.
Events E1…E51 are stored in the event register of the relay. The maximum capacity
of the register is 60 events. Under normal conditions the register is empty.
The contents of the register can be read using the L command, five events at a time.
Using the L command erases the previously read events from the register, with the
exception of events E50 and E51 which have to be reset using the C command.
Should a fault occur, for example in data communication, these events can be re-read
using the B command. If needed, the B command can also be repeated.
U<< Trip
Activated/Reset
E15/
E16
166 91 - - E13 2
PO1
Activated/Reset
E17/
E18
165 27 auxiliary input 1 X - 1
PO2
Activated/Reset
E19/
E20
165 28 auxiliary input 2 X - 1
SO1
Activated/Reset
E21/
E22
165 29 auxiliary input 3 X - 1
SO2
Activated/Reset
E23/
E24
165 30 auxiliary input 4 X - 1
Disturbance
recorder
triggered
E31 165 100 - - - 1
HMI Password
Opened/Closed
E32/
E33
165 101 - - - 1
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Measurand
Normalize factor Rated value Function type Information number
Standard description of
the information number
(IEC 60870-5-103)
Type identification
Voltage U
12
2.40 U
n
135 142 - 9
Voltage U
23
2.40 U
n
Voltage U
31
2.40 U
n
Positive-phase-
sequence
voltage
2.40 U
n
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Event reason
Event code Function type Information number
Standard description of
the information number
(IEC 80870-5-103)
GI Relative time Type identification