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Motorized Rotary Actuator
5. COMMISSIONING
Compare the actuator torque and the set travel with the technical specifications of the valve.
Overloading can lead to serious damage to the valve. Watch out for moving parts during
assembly and adjustment. Risk of injury and substantial material damage.
The rotary actuator is factory set to a rotational travel of 90°.
Actuators with positioners are supplied with a control input signal of 0-10
unless otherwise stipulated upon ordering.
Caution
5.1 Setting the mechanical end stops
Move the actuator out of the end position, tighten
the stop screw to the dimension shown in Fig. 3 and
counter-tighten the nut. The stop screw should not
be turned out of the specified range. If the range is
exceeded, rotate the coupling by one tooth relative to
the output shaft.
5.2 Setting the limit switches
Move actuator into chosen end position. Open the
eccentric tappet (1) using a 10 mm wrench and
adjust the switch cam with a screwdriver (7). Close
the eccentric tappet again using the wrench (Fig. 4).
Use of the limit switches to switch off the actuator
will prolong its lifespan.
5.3 Test run
5.3.1 Checking the direction of rotation
● Adjust the actuator manually to roughly the middle position.
● In direction of travel CLOSE, switch the actuator on and watch the direction of rotation.
● If the direction of rotation is wrong, switch off immediately.
● Check wiring (jumpers).
● Repeat the test run.
If the direction of travel is set incorrectly, damage to actuator and valve is
imminent as the limit switches will not function with the wrong direction of
rotation!
Attention
W. Baelz & Sohn GmbH & Co. · Koepffstrasse 5 · 74076 Heilbronn · Germany · www.baelz.de
baelz 375-E42
~ 19 mm for 90°
(Min: 12,9 / Max: 25,1) ±15°
F10
F07
F05
Fig. 3:
Setting the mechanical end
stops
1
unlock
6
lock
2
3
4
5
7
Fig. 4:
Setting the limit switches
EZ2
EZ1
WER
WEL
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