Edwards nEXT730

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1.9  Analogue signal options ..................................................................... 86 
1.10 Electronic braking options ............................................................... 86 
1.11 Factory settings ................................................................................ 87 
1.12 Assigning a multi-drop address. ....................................................... 87 
1.13 Configure the pump using a TIC ....................................................... 88 
 Operation ............................................................................................... 89 
1  Before starting the pump ................................................................................ 89 
1.1  Close the vent valve. .......................................................................... 89 
1.2  Pre-start sequence ............................................................................. 89 
2  Vent options, vent valve connection and control ........................................... 90 
2.1  Manual vent valve .............................................................................. 90 
2.2  TAV5 or TAV6 solenoid vent valve ..................................................... 90 
2.3  Vent valve control .............................................................................. 91 
2.4  Alternative valve connected to the vacuum system. ......................... 93 
3  Operation with parallel control and monitoring ............................................. 93 
3.1  Start the pump with parallel control .................................................. 93 
3.2  Run the pump at standby speed with parallel control ....................... 93 
3.3  Stop the pump with parallel monitoring ............................................ 94 
3.4  Parallel monitoring ............................................................................. 94 
4  Operation with serial control and monitoring ................................................ 94 
4.1  Delayed start with serial control ........................................................ 94 
4.2  Start the pump with serial control ..................................................... 95 
4.3  Run the pump at standby speed with serial control .......................... 95 
4.4  Stop the pump with serial control ..................................................... 96 
4.5  Monitor temperature readings with serial control ............................ 96 
4.6  Monitor link parameter readings with serial control ......................... 96 
4.7  Monitor measured motor speed with serial control ......................... 96 
5  Mixed parallel and serial operation ................................................................ 97 
6  Operation with a TIC or TAG ........................................................................... 98 
7  Decelerating and venting ................................................................................ 98 
8  Operation at extreme conditions .................................................................... 99 
8.1 Operation with high inlet pressure .................................................... 99 
8.2 Operation at high temperatures ........................................................ 99 
8.3 Protection against over-speed ......................................................... 100 
8.4  Electrical supply failure .................................................................... 100 
9  Bakeout. ........................................................................................................ 101 
10  Shut down the pump manually ................................................................... 102 
 Maintenance ........................................................................................ 103 
1  Bearing maintenance .................................................................................... 103 
2  Rotor life ........................................................................................................ 104 
3  Cleaning the pump ........................................................................................ 104 
4  Decoding service status words ..................................................................... 104 
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