A419-00-880 Issue F
Page 60
© Edwards Limited 2007. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Maintenance
Table 18 - EPX EUC alarms and warnings
Message on PDT
Description
Action
ALARM 101
Watchdog Reset
EUC controller fault.
Cycle power off and on. If fault still present,
contact Edwards representative
ALARM 101
STOP ACTIVATED
The emergency trip circuit has triggered,
and the inverter is disabled.
Reset the emergency stop circuit.
Allow the pump to stop completely. Restart
the pump.
WARNING 101
POWER INTERRUPT
A power loss of more than half a second
has occurred. This warning is shown as
the power is removed.
Restore power. Restart the pump
WARNING 113
PCA FAULT
General Input/Output fault on EUC.
Cycle the power off and on. If fault still
present, contact Edwards representative
WARNING 312
CURRENT HIGH
Inverter has indicated over-current.
Monitor the pump. If the problem persists,
stop the pump, remove power and contact
Edwards representative.
ALARM 501
PUMP TEMP HIGH
Inverter has received a Pump Thermal
Overload input.
Remove power to the pump. Check that
cooling water flow rate is at least 2 l/min
and other services are correctly supplied.
Allow the pump to cool down completely.
Restart the pump. If the problem persists,
contact Edwards representative.
WARNING 3501
N
2
FLOW LOW
Nitrogen flow low; need to check gas
supply.
Check the nitrogen flow rate to the pump.
Ensure that supply exceeds 17 slm. If problem
persists, contact Edwards representative.
ALARM 7001
INVERTER STOPPED
Inverter running signal has not been
received for more than 20 seconds whilst
the pump should be running.
Usually caused by a dip in the 3-phase
supply.
Remove power. Check that the power supply
is at full strength. Apply power and restart
the pump. If the problem persists, contact
Edwards representative.
ALARM 17601
INVERTER FAULT
Inverter has indicated a major fault/trip
condition across the serial link.
Remove power to the pump. Check that
cooling water flow rate is at least 2 l/min
and other services are correctly supplied.
Allow the pump to cool down completely.
Restart the pump. If the problem persists,
contact Edwards representative.
ALARM 17601
NO RUN SIGNAL
Inverter has not indicated ‘Running’
across the serial link when commanded
‘On’.
This will occur after a thermal trip if the
pump has not been allowed to cool for
long enough.
Remove power to the pump. Check that
cooling water flow rate is at least 2 l/min
and other services are correctly supplied.
Check exhaust line is not blocked and pump
inlet is clear.
Allow the pump to cool down completely.
Restart the pump. If the problem persists,
contact Edwards representative.
WARNING 17601
INVERTER FAULT
Inverter has indicated a minor fault/trip
condition across the serial link.
Remove power to the pump. Check that
cooling water flow rate is at least 2 l/min
and other services are correctly supplied.
Allow the pump to cool down completely.
Restart the pump. If the problem persists,
contact Edwards representative.
WARNING 17613
INVERTER FAULT
Lost communication with inverter.
No action is required unless you need to stop
the pump, in which case remove the power
to the pump (for example by operating the
EMS circuit).