© Edwards Limited 2015. All rights reserved.
Page 31
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Operation
A540-55-880 Issue D
4
Operation
4.1
Start-up
CAUTION
The system is designed to ride through transient term power interruption and to automatically restart once the
power is restored.
CAUTION
Do not operate the pump if the pipeline is restricted or blocked as the pump will not operate correctly and may
be damaged.
1. Switch on the electrical supply.
2. Switch on the cooling water supply.
3. Switch on the nitrogen supply if connected.
4. 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 the front panel control, or the Pump Display Terminal (PDT) accessory, or the
MicroTim accessory (refer to
).
WARNING
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. In accordance with Semi S2, hot surface warning labels are applied to the panels
where appropriate because testing has shown that accessible temperatures can exceed 65 °C in
small areas at worst case pressure conditions at an ambient temperature of 40 °C. Under normal
process operating conditions and an ambient below 25 °C, accessible enclosure temperatures are
unlikely to reach this level.
WARNING
Do not operate the system with any enclosures removed or damaged. If the system is operated with
enclosures removed or damaged, there may be a risk of an electric shock.
WARNING
Ensure that it is safe to start the system. Failure to ensure a safe start (for example, if maintenance
is being performed on components downstream of the system) may result in injury to people and
damage to equipment.
WARNING
After the power is applied, all mains circuits will be energised.
