Edwards GXS Series User Manual

This translates to:
alarm 1 in bit 2 ‑ PWM_TRIP
alarm 8 in bit 4 ‑ OVERT
warning 2 in bit 6 - HIGHTM.
This means the motor is overheated and switched the output o.
10.5 Other problems
10.5.1 Pump controller communicaons
The pump controller contains two processors that perform dierent funcons. Under
normal operaon, the two processors communicate with each other internally while
they perform their funcons.
Under fault condions, it is possible that the two processors stop communicang with
each other. In this circumstance:
▪ The pump may connue to run normally, with gas valves and gate valves kept in
the same state.
▪
Depending which device is 'in control' of the system, control might be released (for
example PDT).
▪ The front panel controls can be used to 'take control' and stop the pump but this
will only be a simple stop, it will not be possible to use any of the shutdown
sequences such as Smart Stop.
▪ If the front panel controls or the EMS buon are used to stop the pump, the
warning LEDs on the pump will ash and the alarm LED will illuminate. The inlet
isolaon valve will shut.
▪
Stop requests from all the devices apart from the front panel controls will be
ignored.
▪ Any requests to start the pump will be rejected.
For systems ed with the MCM MicroTIM:
▪
If the pump is stopped when communicaon is lost then 'alarm present' is set on
the alarm line.
▪ If the pump is running when communicaon is lost then the outputs to the
MicroTIM are unaected.
Page 173
M58800880_H - Fault nding

Edwards GXS Series Specifications

General

Brand	Edwards
Model	GXS Series
Category	Water Pump
Language	English