Johnson Controls ERA1600 Bedienungsanleitung Seite 29

111 6041 050 E
Normal position
S2
Fig. 3
♦ Turn the feedback potentiometer clockwise to the stop see Fig. 4. This is the setting point for the stroke
when the actuator stem is extended.
Fig. 4
♦ Connect voltmeter (ammeter) to terminal Y.
♦ Increase input voltage on terminal E to 10 V DC (20 mA). Retract actuator stem until the motor is
switched by the micro-switch S2.
Output signal Y lesser 10VDC:
♦ Turn the compensating potentiometer anti-clockwise until output signal Y is equal 10VDC.
If 10VDC is not achievable the transfer bolt must be adjusted with regard to the stroke. Then the entire
setting procedure must be carried out again.
Output signal Y equal 10VDC:
♦ First turn the compensating potentiometer clockwise until output signal Y is lesser 10VDC. Then Turn the
compensating potentiometer anti-clockwise until output signal Y is equal 10VDC
♦ Remove the voltmeter. This ends the basic setting procedure.
♦ If another action mode is required, the action mode switch must be moved to the corresponding position,
see Fig. 1.
S2 makes contact
S1
S2
S1 makes contact
S1
S2
Feedback potentiometer:
The friction clutch on the potentiometer shaft
allows adjustment of the potentiometer shaft.
The adjustment can be made with a screwdriver.
11 E
S1