Einbau- und Betriebsanleitung
Installation and Operating instructions
Instructions de montage et de service
5112-8010
10/2012
5.2 Setting the limit switches
The limit switches are wired in series with the force switch for both directions of movement.
The adjusting spindle E1 is used to limit the travel in the OPEN direction (spindle moves in) (cf. Fig. 2, item 1)
The adjusting spindle E2 is used to limit the travel in the CLOSED direction (spindle moves out)
In this case the cams must not be shifted over the switching point of the microswitch.
If the limit switches are not required, then these can be turned into the end positions with the adjusting spindles (cf. Fig. 2). A
drive is then switched off by the force switch.
5.3 Setting additional limit switches
The additional limit switches E3 and E4 can be used for signaling arbitrary intermediate positions (cf. Fig. 2)
The logic of the switches for an intermediate position is shown in Fig. 2
Refer to the connection drawing (Fig. 1) for the assignment of the terminals.
5.4 Potentiometer adjustment
In the case of delivery of actuator with valve, the potentiometer is already adjusted (10% of the max. ohm value of the
potentiometer is standard).
Subsequent adjustment of the potentiometer:
Move the valve in motor mode into the CLOSED end position.
Open the grub screw (Fig. 4, Item 2) and turn the adjusting ring so that the notches on the adjusting ring and potentiometer
holder (Item 1) agree. The potentiometer is now adjusted to 10% of the max. ohmic value.
Potentiometer in connection with MU 4524
Actuator in CLOSED position
On the evaluation electronics adjust the trimmer T1 so that the output signal is 4 mA.
Move the actuator in motor mode to the OPEN end positions and set the output signal to 20 mA with trimmer T2.
5.5 Electronic positioner adjustment
Refer to the separate operating instructions
6 Heating
The fastening of the standstill heating is shown in Fig. 5.
The heating resistor is a standstill heater and must therefore be connected permanently to a power supply.
The connection is made according to the connection drawing (Fig. 1)
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