Rlm Circuit Faults - SKF Multilog On-Line System IMx-M User Manual

Protection
Protection Part Operation

RLM Circuit Faults

If any bit representation of RLM circuit faults is not 0x0000, then the PRM circuit fault
relay will be triggered and the PRM circuit fault LED will be ON indicating a circuit fault.

For RLM Master (relay master) bit representations, refer to the table Relay Module
Circuit Faults – RLM Master, below to decode circuit fault condition(s).

For RLM Slave 0 to RLM Slave 7 (relay slaves 0 to 7) bit representations, refer to
the table Relay Module Circuit Faults – RLM Slave 0 to 7 (Relay Slaves 0 to 7),
below to decode circuit fault condition(s).
Table 2-13: Relay module circuit faults – RLM Master.
Relay Module Circuit Faults - RLM Master (Relay Master)
Bit representation* Condition
CF_STATUS_OK
(0x0000)
(No bit set)
CF_CONFIG
0x0001
CF_RS485INT
0x0002
CF_CFG_MISMATCH
0x0004
CF_SELFTEST
0x0008
CF_DOWNLOAD
0x0010
CF_24VA
0x0020
CF_24VB
0x0040
CF_5V1
0x0080
CF_5V2
0x0100
CF_TEMP
0x0200
2 - 42
Comments
Normal. No errors.
User configuration dependent:
Check IMx-M configuration settings.
Check the PRM position.
Internal RS485 communication error:
Check modules are firmly positioned.
Master and slave may have different firmware
version in use - check the current firmware version
in use (intd0) on both master and slave.
Configuration mismatch detected:
See "Protection Configuration
Check for self test errors during startup.
Download mode.
PSU 1 voltage failure:
User configuration dependent.
Check IMx-M configuration settings.
Check PSU 1 is firmly positioned.
PSU 2 voltage failure:
User configuration dependent.
Check IMx-M configuration settings.
Check PSU 2 is firmly positioned
Internal 5 V error:
Contact SKF support
Internal 5 V error:
Contact SKF support
Internal temperature high/alert.
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