4 Assembly
Rotary actuators 135 • M140 • M150 • M180
14 Version 2.0 - June 2012 Operating instructions
4.5 Electrical connection
Danger of life caused by incompetent staff!
Electrical connections carried out by unqualified staff may result in death, severe
bodily injury or considerable material damage.
• Make sure that such all work is carried out by qualified staff.
1.3 Personnel on page 5
Risk of injury from electric shock by live parts!
When the supply voltage is turned on there is a risk of electric shock from live
parts.
• Prior to commencing any work, ensure that the actuator is safely disconnected
from the power supply system.
• Secure against unauthorised restarting.
How to prepare the electric connection
1 Ensure that the supply voltage matches the specifications on the type plate of
the rotary actuator.
2 To avoid breakdown, construct the line diameter according to actuating
performance and required line length.
3 Check the supply voltage.
If the required tolerance is not achieved by a power transformer you will have to
use an AC voltage stabilizer.
2.5 Technical data on page 9
How to establish electrical connection
1 Remove the hood (200).
Remove the hood on page 13
2 Guide the cable through the cable duct in the transmission case to the terminal
strip.
3 Connect the power supply according to the wiring diagram.
Fig. 9 Wiring diagram on page 15
Hint: The wiring diagram (481) is positioned on the inside of the hood (200).
4 Tighten the screw joint.
Malfunction due to parallel circuit
• The connection of several actuators via one output contact is prohibited!
• One coupling relay per actuator must be provided if several actuators are to be
run on a parallel circuit!
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