Edwards GXS Series User Manual

Refer to Automac shut down on page 61 for informaon about alarms and automac
shutdown condions.
If the dry pumping system has an unplanned shut down, ensure that the cause of the
shutdown is idened and reced before restarng. If in doubt, contact us.
Note:
The high ‑ temperature alarms on our dry pumping systems are dry pumping system
protecon trips and should be considered as an abnormal running condion. If a dry
pumping system has tripped due to any high ‑ temperature alarm it should be
invesgated and the reason for the alarm established. Once the fault has been remedied,
the dry pumping system should be le for a minimum of 30 minutes before aempng to
restart.
4.8 Emergency stop
Note:
The emergency stop switch is not an electrical isolator.
To shutdown the dry pumping system in an emergency, press the emergency stop switch
(refer to Figure: Front panel controls, item 1). Alternavely, the emergency stop controls
can be operated in the user's control system if the emergency stop circuit has been
connected to the dry pumping system as described in Connect to the emergency stop
circuit on page 46.
When emergency stop is selected:
▪
The dry pump and the booster pump are switched o.
▪
The solenoid valve(s) in the gas module close, to switch o the supply of purge gas
to the pump.
▪ The solenoid valve(s) in the temperature control manifold(s) de‑energise with loss
of temperature control.
▪
The PDT will display 'ALARM 1.01/STOP ACTIVATED' (if connected) or it may display
'ALARM 186.01/ DP INV 0040 0000 / EMS'.
▪ The running LED will go o.
▪ The alarm LED illuminates.
4.9 Restart the pump aer an emergency stop or automac shut down
Note:
If the dry pumping system has automacally shut down because of the high pump
power, check that the pump is free to rotate before restarng the dry pumping system.
Contact us.
If the emergency stop switch on the front panel has been used to shutdown the dry
pumping system, the emergency stop switch must be reset before the dry pumping
system can be restarted. Turn the emergency stop switch to reset it, then restart the dry
pumping system as described in Start up on page 54.
If the dry pumping system has been automacally shut down because of an alarm
condion, the alarm condion must be reced before the dry pumping system can be
Page 62
M58800880_H - Operaon

Edwards GXS Series Specifications

General

Brand	Edwards
Model	GXS Series
Category	Water Pump
Language	English