Edwards GXS Series User Manual

restarted. If the alarm was caused by high pump temperatures, refer to Unplanned shut
down and alarms on page 61. Restart the dry pumping system as described in Start up
on page 54.
4.10 Dry pump clean
The high ow purge and the solvent ush kit is available as a factory‑t opon to clean
the pump mechanism on applicaons where large quanes of dust and scky deposits
are encountered. The cleaning process is run while the pump is in green mode/standby
mode and is carried out without the need to remove the pump enclosure. A PDT is
required to iniate the DP clean process. Refer to Table: DP clean sequence for details.
Table 25
DP clean sequence
Sequence Descripon
Dry pump clean
▪ Only operates when the pump is running in green mode/
standby mode.
▪ Purge gas or the solvent uid is admied into the pump for a
congurable me (default 20 minutes).
▪ Pump speed during the dry pump clean is congurable
(default 40 Hz).
▪
Gas purges may be congured to be on during the clean cycle
and/or for a period aer the DP clean valve has closed
(default o).
▪
Pump is not able to go on‑process unl the cycle has
completed.
▪ If dry pump clean is stopped by the user then the purge cycle
is completed.
▪ DP clean may be congured to start automacally when the
pump goes o process.
The DP clean high ow purge and solvent ush procedures can be run as oen as
required.
4.10.1 High ow purge
Use the following procedure to prepare for the high ow purge:
1.
Set up the dry pumping system ready for the high ow purge procedure as
described in High ow purge and solvent ush set up on page 51.
2.
Put the pump into green mode/standby mode. Refer to Green mode/standby mode
on page 57.
3.
Using the PDT, press the Setup buon to enter the setup menu and then select the
Command menu. An access code is needed to enter the Command menu. Enter
202 when prompted.
4.
Scroll down to the DP clean menu and then press ENTER to select.
5.
Select 'DP clean on' to start the high ow purge procedure.
The DP clean sequence will run automacally without requiring any operator
intervenon. Once the DP clean me has elapsed, the dry pumping system will return to
green mode/standby mode sengs. The pump can then be put back on‑process.
Page 63
M58800880_H - Operaon

Edwards GXS Series Specifications

General

Brand	Edwards
Model	GXS Series
Category	Water Pump
Language	English