Operation Manual

Continuous valve actuator CHEOPS control
theben
As of: Jul-11 (Subject to change without notice) Page 3 of 71
5.3.2 Input E1 ................................................................................................................ 52
5.3.3 Input E2 ................................................................................................................ 53
5.4 Monitoring the actual value ...................................................................................... 54
5.4.1 Application ........................................................................................................... 54
5.4.2 Principle ............................................................................................................... 54
5.4.3 Practice ................................................................................................................. 54
5.5 Valves and valve seals .............................................................................................. 56
5.5.1 Valve structure ..................................................................................................... 56
5.5.2 Valves and valve seals .......................................................................................... 56
5.6 Limit of actuating value ........................................................................................... 57
5.6.1 Minimum actuating value ..................................................................................... 57
5.7 Determine the maximum actuating value ................................................................. 58
5.7.1 Application ........................................................................................................... 58
5.7.2 Principle ............................................................................................................... 58
5.7.3 Practice ................................................................................................................. 58
5.8 2-step heating ........................................................................................................... 59
5.9 Temperature control ................................................................................................. 60
5.9.1 Introduction .......................................................................................................... 60
5.9.2 Response of the P-control .................................................................................... 61
5.9.3 Response of the PI-control ................................................................................... 62
6 Troubleshooting ............................................................................................................... 63
6.1 Display current valve position .................................................................................. 64
6.2 Read-out error code .................................................................................................. 65
6.3 Checking end position .............................................................................................. 67
6.4 Checking adapter ring .............................................................................................. 68
6.5 Reading the software version number ...................................................................... 68
7 Glossary ............................................................................................................................ 70
7.1 Basic set point value ................................................................................................. 70
7.2 Hysteresis ................................................................................................................. 70
7.3 Continuous and switching control ............................................................................ 70
7.4 Dead zone ................................................................................................................. 71
7.5 Valve stroke .............................................................................................................. 71