
MEP 660 - Trouble shooting Manual
Doc No.: IM – 51
Rev.2.0
Print: October 2008
187
PARAMETER
DESCRIPTION
FAULT CODE
1184
FAULT MESSAGE Frequency DB Power Supply FAULTY
RESTRICTIONS
Warning only
ALARM BELL
--
RESET LEVEL
MEDIUM, Manual
If the fault condition is still present when cleared manually, the fault
will be generated again.
FAULT
RECOVERY
Automatic when the Frequency analogue DB (RDB) power supply is
detected to normal.
PROBABLE
CAUSES
Most probably this fault accompany with associated sensors
(Connected to the RDB) faulty.
1. Defective Analog distribution box.
2. Defective wiring.
FAULT
ISOLATION
1. Replace the RDB and check up
2. Replace the cable ID: Q and check up.
3. Check for disconnected wires at back side TB for the wire No. PSH4.
4. Check the continuity of wire PSH4 from TB to the Cable connector
(Cable ID: AW Pin – C). If necessary replace the cable.
5. Check the status of the Green LED 7 on the digital input card
MDIP16 in slot No. 12.
6. If the Green LED glowing and corresponding Yellow LED 7 is not
glowing the digital input card MDIP16 is defective. Replace and
check up.
PARAMETER
DESCRIPTION
FAULT CODE
1185
FAULT MESSAGE WS EEPROM Faulty. All WS Faults Cleared.
RESTRICTIONS
--
ALARM BELL
5 sec.
RESET LEVEL
High, Manual
FAULT
RECOVERY
--
PROBABLE
CAUSES
System detected fault while writing the faults on EEPROM.
FAULT
ISOLATION
--