Fig.37:
Control top shown without pneumatic block
7.5.1
Spring-closing valves
This chapter describes the adjustment of the sensor for the following valves:
–
VARIVENT, ECOVENT, STERICOM valves except valve type U for actuator
selection "Z or NC": rest position of the valve spring-closing
–
VARIVENT valve type U with actuator selection "A or NO": rest position of the
valve spring-opening
–
VESTA valves with actuator selection "Z or NC": rest position of the valve
spring-closing
Assignment:
Sensor *1
LED colour
Spindle
S1
Green
A
S2
Yellow
B
*1 see wiring diagram at the terminal strip
Valve is not actuated!
Adjusting sensor S1
Carry out the following steps:
1.
Loosen lock nut M5 S1.1 using jaw wrench AF 8 in counter-clockwise
direction
2.
To adjust sensor S1, turn the sensor position on spindle B into the lower area
in accordance with Fig. 35. LED A may light up during this, and must go out
again after the lower switching edge (4) has been passed.
Attention: Sensor S1 must be moved from the top into the detection range (3)!
Start-up
Adjusting sensors on the control top
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