A590-00-880 Issue D
Page 28 © Edwards Limited 2008. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Operation
PDT operation:
5. If the system is to be operated using the PDT.
z Connect the PDT to the required PDT connection, front (Figure 6, item 4).
z Press CONTROL button, press ENTER button, LOCAL CONTROL green LED illuminates.
z Press START button.
z Press ENTER.
z The system will start and the Running LEDs will be illuminated.
4.2 Status indicators
Refer to Figure 6.
4.3 Manual shut-down
The pump can be shutdown using either the iTIM, the PDT or the IM. Note that only the item in control can stop the
pump (refer to Section 1.4).
iTIM and IM operation:
1. Use your control equipment to reset the pump start/stop signal to the interface connector. The Running LED
(Figure 6, item 2) will then go off, and the pump running status output signal will open.
PDT operation:
If you stop the pump without the nitrogen purge cycle i.e. using the EMS button, on processes that have
condensable or solid by-products then the pump may not restart.
1. Use the PDT to select Auto or Fast shut-down mode, both introduce nitrogen purge cycle.
If the pump is not going to be required for some time, switch off the electrical supply and the cooling-water supply.
If you shut the system down and don’t isolate it from the electrical supply, do not disconnect the
Pump Display Terminal or release control from the Pump Display Terminal or front panel. If you do
the system could be started by another Module.
Do not remove the inlet connections until the pump has been allowed to stop rotating and the
power has been isolated. The pump can take up to three minutes to completely stop.
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