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Operating and installation instructions
Thrust actuator ARI-PACO
®
2G 1,6D/Y
5.4.2.3 Potentiometer
Fig. 7: Switchgear and indicating feature ARI-PACO
®
2G 1,6D
The potentiometers are used for electrical position acknowledgement on the facility control system.
A maximum of 2 potentiometers can be installed (= 1 double potentiometer).
The potentiometers can be supplied with different resistance values
(see point 4.5 Technical data).
Conversion of the relevant valve-lift to the potentiometer angle of rotation is effected by means of
transmission determined in respect of each valve-lift between the toothed rack on the trip slide and
the pinion on the potentiometer shaft.
Use must only be made of the pinion specified for the valve-lift.
If the thrust actuator is supplied with the valve and built-in potentiometer, the potentiometer is
assembled and set ready for operation.
To achieve optimal electromagnetic compatibility it is recommended to use shielded cables for
connecting potentiometers or standardized active current or voltage signals.
Pos.
Designation
Pos.
Designation
50.42
Board support
50.68
Connecting cable for option:
potentiometer
50.46
Spring washer
50.69
Self-tapping screw
50.47
Wiring diagram sticker
50.70
Spiral spring (option: potentiometer)
50.67.1
Hexagon nut
50.71
Slide block (option: potentiometer)
50.67.2
Tooth lock washer
50.73
Pinion (selection depends on valve-lift
20, 30, oder 40 mm)
50.67.3
Potentiometer
50.74
Connector, 3-pole
(option: potentiometer)
