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Operation
A735-01-880 Issue C
4 Operation
A fine dust may be emitted from the exhaust of the scroll pump during start up, particularly when the pump is
new or if new tip seals are fitted.
4.1 Operational modes
The nXDS pump implements three control modes:
Manual Control Mode - using buttons on user interface panel
Parallel Control Mode - via 15-way D-type logic interface connector on user interface panel
Serial Control Mode (including Serial Interlock) - via 15-way D-type logic interface connector on user
interface panel
The Control Mode is determined by the way the pump is started. Once started, the pump can only be stopped by the
mode in which it was started, unless the power is cycled by isolation from the electrical supply.
4.2 Manual operation
The pump control functions of the user interface panel are detailed in Figure 9.
Ensure that the system design does not allow the exhaust pipeline to become blocked.
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