9
Figure 9: Setting the switching cams for
the position switches
A
Switching cam for ① position switch OPEN/ Feedback
signal
B
Switching cam for ② position switch
CLOSE/ Feedback signal
C
Switching cam for ③ limit switch OPEN/ Motor
cut-off
D
Switching cam for ④ limit switch CLOSE/ Motor
cut-off
E
Supporting bridge for screwdriver
NOTE:
Use the bridge (Figure 8, Pos. E) as support for the screw
driver when adjusting the cams.
9.2 Setting of the additional position switches
Run the actuator by turning the hand wheel in CLOSE position until the required position is reached.
Turn the cam of the the CLOSE limit switch (Figure 9, Pos. B) with a suitable screw driver (4 mm blade
width) clockwise until the micro switch is heard to click.
Run the actuator by turning the hand wheel in OPEN position until the required position is reached.
Turn the cam of the OPEN limit switch (Figure 9, Pos. A) with a suitable screw driver (4 mm blade width)
counter-clockwise until the micro switch is heard to click.
Check the switching position and repeat the adjustment if necessary.
10. Electric supply
Switch mains off before starting to work!
Connect acc. to wiring diagram on the main frame.
The mains supply cords must be suitably dimensioned to accept the maximum current requirement of the
actuator, and correspond to IEC 227 and IEC 245.
The yellow-green coloured cables may only be used for connecting to earth.
When inserting the cable through the cable connector, ensure that the maximum bending radius for the
cable is observed.
The PSQ-E electric actuators do not have an internal electrical power switch. A power mains switch has
therefore to be provided in the installation. This should be positioned close to the device and be easily
accessible to the user and shall be labelled as the mains isolator switch for the actuator.
Electric installation as well as over-current and overvoltage protection devices must be conform to the
standard DIN IEC 60364-4-41, protective class I and also to the standard DIN IEC 60364-4-44 according to
the applied overvoltage category of the actuator.
With protective low voltage 24 VAC the open motor phase can produce voltages
between 30-35 V due to motor generated induction voltage.
B
D
C
A
E
E
