5
Available menu items.
FAL
PSU failure memory (20 last events)
Ibd
measurement of the battery discharging current [A]
Ibc
measurement of the battery charging current [A]
Io2
measurement of current collected from OUT2 output [A]
Io1
measurement of current collected from OUT1 output [A]
Udc
measurement of voltage at the output of the PSU bridge-rectifier [V]
Uo2
measurement of voltage at OUT2 output [V]
Uo1
measurement of voltage at OUT1 output [V]
The resolution for measurement of voltage is 0.1V and for measurement of current is 0.1A.
The displayed values of voltage and current are approximate, and if a better accuracy of reading is required, the
multimeter shall be used.
3.2 Review of actual failures.
If a failure is detected (a red LED lights on the panel), its type can be checked. After
button is pressed, a
failure code is displayed. If a few simultaneous failures occur, repress
button to display a next failure code.
3.3 Review of the failure memory.
The device saves 20 last failures in its non-volatile memory and they can be later reviewed by the installer.
Selection of the failure review mode:
By
select
FAL
item
,
confirm by
, then a failure number and a code are displayed, repress
to display a next failure in memory.
3.4 Erasing of the failure memory.
Pressing
in the review mode of the failure memory causes erasing of all saved failures.
3.5. Failure codes.
Failure code
Failure type
Cause
Notes
bAF
Non-operational battery
Undercharged battery,
Not connected battery,
Burned battery fuse
Check connection and
battery fuse, measure
battery charging current
bLE
Discharged battery
Indicates battery voltage
drop below 10.5V
During battery operation,
the PSU starts counting the
battery disconnection time
o1E
Too low voltage at
OUT1 output
Uout <9.5V
Overloaded Iout1
output>3A
Troubleshoot, disconnect
and then connect the load
after 30 s
o2E
Too low voltage at
OUT2 output
Uout <9.5V
Overloaded Iout2
output>3A
Troubleshoot, disconnect
and then connect the load
after 30 s
UHi
Too high indicated
output voltage
Uout > 14.5V
Faulty voltage stabiliser,
wrong setting of P1
adjustable potentiometer
Check setting of P1
adjustable potentiometer
oHE
PSU overheating
Overheating of circuits of
the PSU, stabiliser,
Faulty temperature sensor,
Not connected sensor
Check the load balance,
fans, connections of
temperature sensor, provide
casing ventilation
