Edwards nXDS Series User Manual

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Contents
A735-01-880 Issue C
Contents
Section Page
1 Introduction ........................................................................................1
1.1 Scope of this manual.................................................................................................... 1
1.2 ATEX directive implication............................................................................................. 2
1.3 General description ..................................................................................................... 2
1.4 Pump controller.......................................................................................................... 2
1.5 Logic interface........................................................................................................... 3
1.6 Gas ballast control ...................................................................................................... 4
2 Technical data .....................................................................................7
2.1 Operating and storage conditions..................................................................................... 7
2.2 Performance.............................................................................................................. 7
2.2.1 General.................................................................................................................... 7
2.2.2 Pumping media........................................................................................................... 8
2.2.3 Performance characteristics........................................................................................... 8
2.3 Mechanical data ........................................................................................................ 11
2.3.1 General................................................................................................................... 11
2.3.2 Sound and vibration data.............................................................................................. 11
2.3.3 Construction............................................................................................................. 11
2.4 Electrical data .......................................................................................................... 11
2.5 Logic interface data.................................................................................................... 12
2.6 LED indicators........................................................................................................... 14
3 Installation ....................................................................................... 15
3.1 Safety..................................................................................................................... 15
3.2 System design considerations......................................................................................... 15
3.3 Unpack and inspect .................................................................................................... 17
3.4 Position the pump ...................................................................................................... 17
3.4.1 Mechanical fixing ....................................................................................................... 17
3.5 Connect to the vacuum system....................................................................................... 17
3.6 Electrical installation .................................................................................................. 18
3.6.1 Fuses and circuit breakers ............................................................................................ 18
3.6.2 Electrical supply connection.......................................................................................... 19
3.6.3 Disconnect the pump from the electrical supply.................................................................. 19
3.7 Connection for remote control and monitoring.................................................................... 19
3.7.1 Connect the logic interface to the control equipment ........................................................... 19
4 Operation......................................................................................... 21
4.1 Operational modes ..................................................................................................... 21
4.2 Manual operation ....................................................................................................... 21
4.2.1 Start and stop ........................................................................................................... 22
4.2.2 Standby................................................................................................................... 22
4.3 Parallel control and monitoring ...................................................................................... 23
4.4 Analogue speed control................................................................................................ 24
4.4.1 Hardware configuration ............................................................................................... 25
4.4.2 Operation ................................................................................................................ 25
4.5 Auto-run.................................................................................................................. 26
4.6 Use of gas ballast control ............................................................................................. 26
4.6.1 Gas ballast control ..................................................................................................... 26
4.7 Start up procedure ..................................................................................................... 26
4.8 To achieve ultimate vacuum.......................................................................................... 27
4.9 To pump condensable vapours ....................................................................................... 27
4.10 Shut down................................................................................................................ 27
cg/0187/01/17

Edwards nXDS Series Specifications

General

Brand	Edwards
Model	nXDS Series
Category	Water Pump
Language	English