Epx Euc Alarms And Warnings - Edwards EPX HiVac Series Instruction Manual

A419-00-880 Issue F
Message on PDT
ALARM 101
Watchdog Reset
ALARM 101
STOP ACTIVATED
WARNING 101
POWER INTERRUPT
WARNING 113
PCA FAULT
WARNING 312
CURRENT HIGH
ALARM 501
PUMP TEMP HIGH
WARNING 3501
N FLOW LOW
2
ALARM 7001
INVERTER STOPPED
ALARM 17601
INVERTER FAULT
ALARM 17601
NO RUN SIGNAL
WARNING 17601
INVERTER FAULT
WARNING 17613
INVERTER FAULT
Page 60
Table 18 - EPX EUC alarms and warnings
Description
EUC controller fault.
The emergency trip circuit has triggered,
and the inverter is disabled.
A power loss of more than half a second
has occurred. This warning is shown as
the power is removed.
General Input/Output fault on EUC.
Inverter has indicated over-current.
Inverter has received a Pump Thermal
Overload input.
Nitrogen flow low; need to check gas
supply.
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.
Inverter has indicated a major fault/trip
condition across the serial link.
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.
Inverter has indicated a minor fault/trip
condition across the serial link.
Lost communication with inverter.
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Action
Cycle power off and on. If fault still present,
contact Edwards representative
Reset the emergency stop circuit.
Allow the pump to stop completely. Restart
the pump.
Restore power. Restart the pump
Cycle the power off and on. If fault still
present, contact Edwards representative
Monitor the pump. If the problem persists,
stop the pump, remove power and contact
Edwards representative.
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.
Check the nitrogen flow rate to the pump.
Ensure that supply exceeds 17 slm. If problem
persists, contact Edwards representative.
Remove power. Check that the power supply
is at full strength. Apply power and restart
the pump. If the problem persists, contact
Edwards representative.
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.
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.
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.
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).
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