Asco 8300 - Errors

5 - 8
Errors
If an error occurs the load bank Stop button lamp will begin to flash and a three step
code sequence will be continuously displayed in the same way as a warning. Again, each
character is displayed for 500ms with the code repeating every 2 seconds. The end of the
sequence is indicated with the decimal point only.
When an error occurs any load applied will be dropped and, if the fault is not cooling
related, the load bank fan will continue to run for the preset cooling period.
After rectifying the fault press the Stop/Reset button to clear the error. The Stop lamp will
stop flashing and will be continuously illuminated. Press the Start button to restart the
load bank.
The three digit error codes all begin with an ‘E’ as follows:
Note: The error mes-
sages displayed are
dependant on the load
bank configuration. For
example, if the load
bank has no duct covers
fitted then any associ-
ated errors will not be
monitored or reported.
Chapter Five
5 - 9
Maintenance & Troubleshooting
Code Description Possible causes / actions
E01 Stop pressed. Start button has not been pressed or was pressed before the
load bank had performed its power on self-test (both Start and
Stop illuminated).
• Wait until the Stop button only is illuminated before press-
ing the Start button.
External emergency stop buttons (if fitted) are depressed
• Release all emergency stop buttons and press the Start
button.
E02 Lost communications with Hand-held (or PC). Hand-held (or Sigma PC system) has disconnected from load
bank while a load is applied.
Hand-held or load bank interconnecting cable fault.
• Check and replace.
E03 Load contactor switching fault. A load contactor switching fault has been detected.
A load step contactor or relay is energised but no load is applied.
No response from the load contactor or relays when load is
requested.
E10
E11
E12
E13
Over temperature on sensor/circuit 0.
Over temperature on sensor/circuit 1.
Over temperature on sensor/circuit 2.
Over temperature on sensor/circuit 3.
Load bank is over temperature.
• Allow the load bank to cool, and then press Stop and Start
buttons.
• Ensure that the load bank ambient temperature is not ex-
ceeded and check that the hot air discharge is not recircu-
lating.
More than one over temperature trip may be fitted. These devic-
es will automatically reset when they cool down.
E20 Fan supply rotation check failed The fan supply phase rotation detection failed when starting the
load bank Fan(s).
• Check the fan supply for a missing phase or single phase
connection.
• Check the Fans and Controls Supply Selector switch is in
the correct position.
Code Description Possible causes / actions
E24 Fan supply voltage and/or frequency limits exceeded
on pressing the load bank start button.
Fan supply voltage or frequency is out of limits.
• Check control voltage and frequency. If the generator rating
is incorrect run the load bank from an external supply.
• Check the Fans and Controls Supply Selector switch is in
the correct position.
E25 Fan supply check shows phase missing. Fan supply phase is missing.
• Check control phases. If the generator rating is incorrect
run the load bank from an external supply.
• Check the fans and controls supply selector switch is in the
correct position.
E26
E27
E28
E29
No running signal for Fan 0.
No running signal for Fan 1.
No running signal for Fan 2.
No running signal for Fan 3.
Load bank cooling fan is not running or fan contactor not ener-
gising
• Check the fan contactor is energising and the auxiliary
contactor is operating.
E30
E31
E32
E33
Overload tripped on Fan 0.
Overload tripped on Fan 1.
Overload tripped on Fan 2.
Overload tripped on Fan 3.
A Fan overload has tripped on over current.
• Check the fan is not obstructed, the inlet is clear and is free
to rotate.
• Confirm the over load is set to the correct current setting
by referring to the load bank drawings.
E34 Fan supply voltage and/or frequency limits
exceeded.
Fan supply voltage or frequency is out of limits.
• Check control voltage and frequency. If the generator rating
is incorrect run the load bank from an external supply.
• Check the Fans and Controls Supply Selector switch is in
the correct position.
E40
E41
E42
E43
Air flow failure on sensor/circuit 0.
Air flow failure on sensor/circuit 1.
Air flow failure on sensor/circuit 2.
Air flow failure on sensor/circuit 3.
No air flow detected when the load bank fans are running.
• Check the fan or duct is not obstructed.
• Verify the airflow direction - the air should exhaust from the
elements., not from the fan.
• Check the air flow sensor is operating correctly.
E44
E45
E46
E47
Cover closed on duct 0.
Cover closed on duct 1.
Louvre 0 failed to open.
Louvre 1 failed to open.
The duct cover(s) or louvre(s) are closed.
• Open the duct covers or louvres before pressing the load
bank Start button.
• Check the proximity detectors for correct operation.
E50 Supply-on-test failure while on load. The Supply-on-Test failed whilst load was applied. Any load
applied has been removed and the load bank has gone to an
error state.
This option can be enabled in the load bank to avoid re-starting
a generator on load.