Protection
Protection Part Operation
SKF Multilog On
-Line System IMx-M
2 - 35
User Manual
Protection Module Circuit Faults - PRM-Master
Bit representation
1
Condition
Comments
0x0800
IOMASTER_CF_
INTVOLT1
Internal voltage warning:
Use the command "adc1" for more information.
0x1000
IOMASTER_CF_
INTVOLT2
Redundant power failure:
Use the command "adc1" for more information.
0x2000
IOMASTER_CF_
TEMPERATURE
Internal temperature of protection module is higher than
65
°
C:
Refer to Cooling section to keep the internal temperature
low.
0x4000
IOMASTER_CF_
DISARM
Backplane EEPROM status error:
Use the local display to update disarm status.
0x8000
CF_STARTUP
Indicated during startup phase.
1
I
mportant:
- Bit representation is in hexadecimal digits.
- Bit representation can be a combination of more than one condition.
Example:
Bit representation of 0x16A is equal to 0x0002 CF_RS
0x0008 CF_SE
0x0020 CF_
0x0040 CF_4-20MA +
0x0100 CF_24VA
Refer to Bit Representation of Combined Conditions for combined conditions.
Table 2-9: Protection module circuit faults - PRM-S0 to PRM-S7.
Protection Module Circuit Faults - PRM-S0 to PRM-S7
Bit representation
3
Condition
Comments
(0x0000)
(No bit set)
CF_STATUS_OK
Normal. No errors.
0x0001
CF_CONFIG
User configuration dependent.
Check IMx-M configuration settings. Check the PRM
position.
0x0002
CF_RS485INT
Internal RS485 communication error - check that modules
are firmly positioned.
Master and slave may have different firmware versions in
use - check the current firmware version in use (intd0) on
both master and slave.
0x0004
CF_CFG_MISMATCH
Configuration mismatch detected.
See "Protection Configuration Update" chapter.
0x0008
CF_SELFTEST
Check for self test errors during startup.
0x0010
CF_DOWNLOAD
Download mode.
0x0020
CF_AD
A/D c
onverter error.