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Technical Support: +44(0)23 9269 6638 (option 3)
PAK200824_01A May 2017 ©2017 ELMDENE INTERNATIONAL LTD
Fault Diagnostic table – Internal - Engineer
Orange LED
Diagnostic
Green LED
Mains
Condition
Possible Cause
Action
O
FF
O
N
Normal
operation
Mains present
Battery fully charged
None
O
FF
Standby
Operation
Mains Lost. No faults present
Battery driving load
Investigate loss of mains
F
LASH
C
ONTINUOUS
O
N
or O
FF
No output
Output fuse blown
Output overload
Output short circuit
Check and replace
output fuse
Disconnect output load
and test load
1
P
ULSE
O
N
Battery
Charging
No faults active
Battery charging normally
but
< 90% of full charge
None
2
P
ULSES
O
N
No Battery
Battery disconnected
Battery fuse blown
Battery heavily discharged
Check battery
connections
Check battery fuse
Check battery condition
Replace battery if aged
O
FF
Low Battery
Volts
Standby Mode
Battery almost discharged
Restore mains
3
P
ULSES
O
N
or O
FF
Battery Fault
High impedance in battery
connection
Battery internal fault
Check battery
connections for
corrosion. Replace
battery if aged
4
P
ULSES
O
N
or O
FF
Charger Fault
Internal failure of battery
charger
Return to manufacturer
5
P
ULSES
O
N
or O
FF
Battery
Temperature
Probe Fault
Battery temperature monitor
disconnected or damaged
PSU running in Safe Mode
Check temperature
sensor connections and
condition of sensor.
Replace if suspect
O
N
C
ONTINUOUS
O
N
or O
FF
Internal Fault
Software fault detected
PSU running in Safe Mode
Return to manufacturer
I
NSTALLATION
This unit is only suitable for installation as permanently connected equipment. The PSU is NOT SUITABLE for
external installation.
This unit must be fed from a mains power source having a separate (approved) disconnect device and fitted
with a fuse or other over-current protection device rated at 5A maximum. Ensure that the disconnect device
used has appropriate earth fault protection to the applicable standard.
Where the PSU is used to provide power to a fire alarm circuit, the mains isolation and disconnect device
should be provided solely for this purpose and be suitably marked “FIRE ALARM – DO NOT TURN OFF”. All
cabling should meet national and local fire system installation regulations, e.g. FP200 type cable for high
integrity installations.
The PSU should be installed according to all relevant safety regulations applicable to the application.
Where the PSU Fault and EPS Fault outputs are used, they should only be connected to circuits having
voltages less than 60V dc.
