8
Doc ID: I200448 - 30
th
June 2021
O
PERATING
I
NSTRUCTIONS
In the event of loss of mains, a battery fault or a GEN fault, the corresponding Fault signal contacts will open.
If the output of the PSU fails, the cause of the failure should be investigated e.g. short circuit load,
connection of a deeply discharged battery. The fault should be rectified before restoring power to the PSU. If
any of the fuses require replacing, ensure the correct fuse rating and type is used.
M
AINTENANCE
Maintenance
This unit is intended for use by Service Personnel only. There are NO USER SERVICEABLE parts inside.
There is no regular maintenance required of the PSU other than periodic testing, and replacement of the
standby battery.
Reference should be made to the battery manufacturer's documentation to determine
typical/expected battery life with a view to periodic replacement of the battery.
D
IAGNOSTICS
Local Diagnostics
Green LED
On = Mains Present
Yellow LED
Fault Diagnostics according to table:
Yellow LED
(fault)
Green LED
(mains)
Status
OFF
ON
Normal:
Battery fully charged
One short flash
every second
ON
Normal:
Battery charging but not fully charged
Flashing:
1second On
1 second Off
ON
Fault:
Output fuse or battery fuse blown, or
battery missing
OFF
Fault:
No mains, output fuse blown
One short flash
every 3 seconds
OFF
Fault:
No mains, battery supplying load.
OFF
OFF
Fault:
No mains, No output, Batteries
disconnected or completely discharged
