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Page 55
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Appendix A2
A540-55-880 Issue D
Appendix A2
Troubleshooting
A2.1
Warnings
The pump controller generates a warning when a problem is encountered. Once the problem that caused a warning
has been resolved, the warning is cleared by the pump controller.
A2.1.1
LED warning indicators
If the pump encounters a problem, warnings are indicated on the LEDs on the front control panel, the rear panel and
on the PDT if fitted.
The warning LEDs on the front control panel and rear panel illuminate continuously when a warning is generated.
If a PDT is fitted, the warning LED flashes to indicate a new warning. Refer to
for more information
on how warnings are indicated and how they can be acknowledged using the PDT.
Once all the warnings are cleared, the warning LEDs extinguish.
A2.1.2
PDT warnings
If a PDT is fitted, each warning triggers a warning message to be displayed. Refer to
for more
information on how warnings are handled by the PDT.
lists the warning messages that might be displayed on the PDT with possible causes and actions that should
be taken.
Table A13 - Warnings
Warning Message
on PDT
'Action' Message on
PDT
Possible Cause
Action
Warning 1.01
Power interrupt
Check pwr supply
There has been a brownout of the
electrical supply to the pump lasting more
than 1 second.
Check the electrical supply
Warning 31.13
Gas missing
See manual
The gas module is not communicating with
the pump controller.
Contact Edwards.
Warning 31.01
SYS CONFIG FAULT
See manual
The wrong type of gas module has been
fitted.
Contact Edwards.
Warning 35.10
N2 Purge Low
Check N2 supply
The Nitrogen supply flow rate is too low
- the supply might not be connected or
switched on
- the supply line or filter may be blocked
Check the Nitrogen supply is
connected and switched on
and that pipelines and
filters are not blocked.
Warning 35.11
N2 Purge High
Check Gas Module
The Nitrogen supply flow rate is too high
- the gas module and PDT settings do not
match
Check the gas module and
PDT settings, refer to
- the gas module may be faulty
Contact Edwards.
Warning 35.13
Sensor missing
-
The transducer is disconnected or has
failed.
Contact Edwards.
Warning 51.13
Sup Missing
See manual
There is a communication problem within
the pump controller. Refer to
for more information.
Cycle the power to the
pump. If the warning
persists, contact Edwards to
replace the pump
controller.
