© Edwards Limited 2008. All rights reserved. Page 27
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Operation
A590-00-880 Issue D
4 Operation
4.1 Start-up
The system is designed to ride through short term power interruption and to automatically restart once the
power is restored.
Do not operate the pump if the pipeline is restricted or blocked as the pump will not operate correctly and may
be damaged.
Refer to Section 1.1 and 3.6.
1. Switch on the cooling-water and nitrogen supply.
2. Switch on the electrical supply.
3. Check that the exhaust-extraction system is not restricted, and that any valves in the exhaust-extraction system
are open.
The pump can be started using either the iTIM, the PDT or the IM.
iTIM and IM operation:
4. Use your control equipment to set the pump start/stop signal to the interface connector and check that the
Running LED is illuminated.
z Control must be taken with the iTIM. The message 'iTIM IN CONTROL' will be displayed on the PDT if
connected.
Do not operate the system with any enclosure panels removed or damaged and do not touch any
parts of the pump(s) when the system is on. Surfaces of the pump(s) are very hot and can cause
injury to people.
Do not operate the system with any enclosures removed or damaged. If you do there may be a risk
of an electric shock.
Ensure that it is safe to start the system. If you do not (and, for example, maintenance is being
performed on components downstream of the system), you could cause injury to people.
After the power is applied, the contactors will pull in automatically and all mains circuits will be
energised.
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