VAT 651 Series Installation, Operating, & Maintenance Instructions page 4

5 Operation ........................................................................................... 62
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
6 Trouble shooting .............................................................................. 71
7 Maintenance ...................................................................................... 73
7.1
7.2
8 Repairs .............................................................................................. 88
9 Dismounting and Storage ................................................................ 89
9.1
9.2
10 Packaging and Transport ................................................................. 91
10.1
10.2
11 Disposal ............................................................................................. 93
12 Spare parts ........................................................................................ 94
12.1
13 Appendix ........................................................................................... 98
4/99
4.6.2 Tuning of pressure control performance with fixed PI control .......................... 56
4.6.3 Tuning of pressure control with soft pump ....................................................... 59
Normal operation ........................................................................................................... 62
5.1.1 Local operation ................................................................................................ 63
5.1.2 Remote operation ............................................................................................ 64
Close valve .................................................................................................................... 65
Open valve..................................................................................................................... 65
Position control .............................................................................................................. 65
Pressure control ............................................................................................................. 65
5.5.1 Operation with 2 sensors ................................................................................. 66
Display information ........................................................................................................ 67
5.6.1 Power up ......................................................................................................... 67
5.6.2 Operation ........................................................................................................ 68
5.6.3 Errors .............................................................................................................. 68
5.6.4 Safety mode .................................................................................................... 68
5.6.5 Service indication ............................................................................................ 69
Operation during power up ............................................................................................ 69
Behavior in case of power failure ................................................................................... 69
Operation under increased temperature ........................................................................ 70
Behavior In case of compressed air pressure drop ........................................................ 70
Maintenance intervals .................................................................................................... 73
Maintenance procedures ............................................................................................... 74
7.2.1 Replacement of isolation seals and cleaning .................................................. 75
7.2.2 Replacement of actuator shaft seals ............................................................... 78
7.2.3 Replacement of Option board ......................................................................... 83
7.2.4 Retrofit / replacement procedure ..................................................................... 85
Dismounting ................................................................................................................... 89
Storage .......................................................................................................................... 90
Packaging ...................................................................................................................... 91
Transport ....................................................................................................................... 92
Drawing ......................................................................................................................... 94
12.1.1 Valve unit with seals and grease ..................................................................... 95
12.1.2 Control and actuating unit ............................................................................... 96
12.1.3 Accessories ..................................................................................................... 97
Edition 2014-07-10
Series 651
605451EC