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Introduction
A735-01-880 Issue C
Figure 1 - nXDS scroll pump
1.5 Logic interface
The pump controller can be operated via the 15-way D-type logic interface connector. The signals on the logic
interface are of the following types:
Control inputs: these are switch-type and analogue signals that are used to control the pump
Status outputs: these outputs identify the status of the system Tab
The logic interface has been designed to support both serial control, parallel control and monitoring, operating
though one connector. For serial control either RS232 or RS485 can be selected.
For Control Modes refer to Table 1.
For Logic interface data refer to Section 2.5.
1. Lifting eye
2. NW25 inlet port
3. Gas ballast control
4. Cooling fan
5. NW25 exhaust port
6. Rubber feet
7. 15-way D-type connector
8. USB port (service mode only)
9. User interface panel
10.Mains power connector
11.Secondary earth bond point
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