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Appendix A2
M588-00-880 Issue E
A2.6.3 Increasing the warm-up temperature
Use the Warmup setpoint temp menu item and increase the warm up set point to the desired temperature to suit
your application.
Note: The maximum temperature allowed for warmup setpoint temp is above the alarm limit for the pump so if
the temperature is set too high the pump will never warm up. Changing the warm-up temperature does not
change the pump’s water cooling operation. This is fixed by Edwards and can only be changed by a
downloadable configuration.
A2.6.4 Stop the pump going on-process when it is warm
The GXS pump can be configured to automatically go into Green Mode/Standby mode when it is warm instead of going
on-process. To do this, go to the Auto Green Mode menu and disable auto Green Mode.
Note: If the pump is controlled by a tool interface then the pump will follow the state of the on-process line.
A2.6.5 Stop the pump automatically warming up when in Green Mode / standby mode
If the pump is running in Green Mode/Standby mode and its internal temperature drops below the warm-up set point
then by default the pump will automatically perform a warm up cycle. This could result in the pump speeding up and
slowing down over a period of time.
If the application does not require the pump to remain above the warm-up set point whilst in Green Mode/Standby
mode then automatic re-warming can be disabled using the Warmup auto rewarm menu item.
A2.6.6 Turn inlet purge on during warm-up
A pump can be made to warm up more quickly by adding inlet purge during the warm up cycle. This is enabled using
the Inlet purge menu item.
Note: Systems with the light duty gas module do not have inlet purge so it is not possible to use this feature.
A2.6.7 Allow a pump to go on-process with a warning
By default a pump is prevented from going on-process if a warning is present. This can be disabled using the
Warn onprocess menu item which can be found by going to the Setup menu and selecting the Set sequences menu.
A2.6.8 Warm soft start
This enables a feature where, once warmed up to go on process, the pump is returned to the off process speed for a
configurable time period (“WrmSftStartTime”) before it goes on process.
A2.7 How to configure the booster pump behaviour
By default the GXS booster pump starts a set time after the GXS dry pump starts. The booster stops at the same time
as the GXS dry pump.
It is possible to change the behaviour of the booster pump so that it can be controlled manually or so that the time
delay can be changed or that it starts after the inlet isolation valve is open.
Note: A GXS pump with a tool interface can control the booster independently. See Appendix A2.14.1 for details
on configuring this behaviour.
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