Edwards EXS Series User Manual

If the dry pumping system has an unplanned shut down, ensure that the cause of the
shutdo
wn is idened and reced before restarng. If in doubt, contact us.
Note:
The high‑temperature alarms on our dr
y 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.
6.5 Emergency stop
Note:
The emergency st
op switch is not an electrical isolator.
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 44.
When an emergency stop is selected:
▪ The dry pump is switched o.
6.6 R
estart the pump aer an emergency stop or automac shut down
Note:
If the dry pumping s
ystem 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 has been used to shut down the dry pumping system, the
emergency stop switch must be reset before the dry pumping system can be restarted. If
the run and stop switches are not ed, power o the pump for at least 1 minute then
restart the dry pumping system as described in Start up on page 50. If the run and stop
switches are ed, push the run switch to restart the pump.
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
restarted. If the run and stop switches are not ed, power o the pump for at least
1 minute then restart the dry pumping system as described in Start up on page 50. If the
run and stop switches are ed, push the run switch to restart the pump. If the alarm
was caused by high pump temperatures, refer to Unplanned shut down and alarms on
page 52. Make sure that there is no issue with the cooling system and restart the dry
pumping system as described in Start up on page 50.
6.7 Dry pump clean
The high ow purge and the solvent ush kit is available to clean the pump mechanism
on applicaons where large quanes of dust and scky deposits are encountered. The
cleaning process is carried out without the need to remove the pump enclosure.
07/2021 - ©Edwards Limited
Page 53A41870880_A
A41870880_A - Operaon

Edwards EXS Series Specifications

General

Brand	Edwards
Model	EXS Series
Category	Water Pump
Language	English