Edwards EXT70 User Manual

B722-40-880 Issue F
Page ii © Edwards Limited 2013. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Contents
3.7 Serial interface mode ..................................................................................................27
3.7.1 Connect the serial interface to the customer control equipment ..............................................27
3.7.2 Serial enable .............................................................................................................28
3.7.3 Serial protocol ...........................................................................................................28
3.7.4 Message structure .......................................................................................................29
3.7.5 Command set ............................................................................................................30
3.7.6 Simultaneous parallel and serial operation .........................................................................30
3.7.7 Multi-drop mode ........................................................................................................33
3.8 Vent options, vent valve connection and control ..................................................................34
3.8.1 Manual vent valve ......................................................................................................34
3.8.2 TAV5 or TAV6 solenoid vent valve ....................................................................................34
3.8.3 Controlled venting ......................................................................................................34
3.8.4 Alternative valve connected to the vacuum system ..............................................................35
3.9 Cooling ...................................................................................................................36
3.9.1 Introduction .............................................................................................................36
3.9.2 Forced air cooling .......................................................................................................36
3.9.3 Water cooling ............................................................................................................36
4 Operation ........................................................................................ 39
4.1 Configuring the DX pump using serial commands ..................................................................39
4.1.1 Power limit setting .....................................................................................................39
4.1.2 Powering a fan from the podule ......................................................................................40
4.1.3 Controlled venting options ............................................................................................40
4.1.4 Standby speed setting ..................................................................................................41
4.1.5 Normal speed setting ...................................................................................................41
4.1.6 Timer setting and options .............................................................................................42
4.1.7 Analogue signal options ................................................................................................43
4.1.8 Electronic braking options .............................................................................................43
4.1.9 Factory settings .........................................................................................................44
4.1.10 Assigning a multi-drop address .......................................................................................44
4.2 Configuring the DX pump using a TIC ................................................................................45
4.3 Start-up ..................................................................................................................45
4.3.1 Close the vent valve ....................................................................................................45
4.3.2 Pre-start checks .........................................................................................................46
4.4 Operation with parallel control and monitoring ...................................................................46
4.4.1 Start the pump ..........................................................................................................46
4.4.2 Running at standby speed .............................................................................................46
4.4.3 Stop the pump ...........................................................................................................46
4.4.4 Parallel monitoring .....................................................................................................47
4.5 Operation with serial control and monitoring ......................................................................47
4.5.1 Delayed start ............................................................................................................47
4.5.2 Start the pump ..........................................................................................................47
4.5.3 Standby speed ...........................................................................................................47
4.5.4 Stop the pump ...........................................................................................................48
4.5.5 Temperature readings .................................................................................................48
4.5.6 Link parameter readings ...............................................................................................48
4.5.7 Measured motor speed .................................................................................................48
4.6 Simultaneous parallel and serial operation .........................................................................49
4.7 Operation with a TIC ...................................................................................................49
4.8 Decelerating and venting ..............................................................................................49
4.9 Operation at extreme conditions .....................................................................................49
4.9.1 Operation with high inlet pressure ...................................................................................49
4.9.2 Operation at high temperatures ......................................................................................50
4.9.3 Operation at over-speed ...............................................................................................50
4.9.4 Electrical supply failure ...............................................................................................50
4.10 Bakeout ...................................................................................................................51
5 Maintenance ..................................................................................... 53
5.1 Introduction .............................................................................................................53

Edwards EXT70 Specifications

General

Brand	Edwards
Model	EXT70
Category	Water Pump
Language	English