45
Table 4.3.2.3.-1
IRF codes (Continued)
Fault code
Type of fault
131, 139, 195, 203,
222, 223
Internal reference voltage error
240
Faulty input, Light sensor 2
241
Faulty input, Light sensor 1
253
Error in the measuring unit
a)
Can be corrected by restoring factory settings for CPU.
b)
All settings will be zero during the fault.
Warning
In case of a less severe fault (warning), the relay continues to operate except for
those protection functions possibly affected by the fault. At this type of fault, the
green target LED remains lit as during normal operation, but the text
WARNING
with a fault code or a text message indicating the fault type replaces the name of the
feeder on the display in the idle mode. Some of these faults can be corrected by a
relay operator at site. After the fault has disappeared or been corrected, the message
is automatically cleared.
WARNING
BATTERY LOW
A040279
Fig. 4.3.2.3.-2
Warning with text message
If more than one type of fault occur at the same time, one single numeric code which
targets all the faults is displayed. For instance, the code
33
implies two faults: the
battery is low and the DNP 3.0 module is faulty. The fault code is composed of the
weighting factors assigned to each fault type as follows: 1 + 32; see Table 4.3.2.3.-2
WARNING
FAULT CODE: 33
A040280
Fig. 4.3.2.3.-3
Warning with numeric code
Feeder Protection Relay
Operator's Manual - ANSI Version
REF 610
REF 610
1MRS755539
