Electrical Actuators

Wiring Diagram

OM-1 ~ OM-13, OM-A, OM-A-M, BM-2 110/220/24V Actuator (ON/OFF, 3 Point Control)

Travel switches adjustment for OM-2~OM-13

The quarter-turn actuator is provided with a limiting of manual rotation device to avoid over-travel with the hand-wheel. Before setting the limit switches, please adjust the mechanical stops.

Mechanical Stops adjustment

1. To loosen the screws
2. To adjust limit switches & travel cams.
3. To adjust the screws
4. To reverse one cycle

Travel switches adjustment for OM-1 & OM-A, OM-A-M

Important Notices & Maintenance

  • Make sure if the voltage is correct before wiring.
  • Power off before distribution or for maintenance purpose.
  • Lock tight the casting and conduit entrance after power distribution to prevent from dusting or water spoiling.
  • The angle of electric actuators must not be below the horizon or stands upside down.
  • When electric actuators need two sets of unit for simultaneously, please connect with the individual cable.
  • Don’t install in complete vacuum space directly.
  • Actuator should be placed at clean and dry place for storage, and protected with outer carton from being affected by great temperature difference or serious vibration.


OM-1~ OM-13, OM-A, OM-A-M 110/220/24VActuator (Modulating , 30% & 75% duty cycle)

Wiring Diagram

Dip Switch setting

sensitive switch: (Factory setting is position “3”)

Position “0” : Lowest Sensitive, 0-90 divided into 17 steps.
Position “1” : Highest Sensitive, 0-90 divided into 70 steps.

Setting for OPEN and CLOSE

1. Keep pressing “SET” for 3 seconds, then LED9 comes on, it will enter the manual mode.
2. Keep pressing “UP” until LED2 comes on (fully-open), then supplies the input signal (5V or 10V or 20mA) and presses “MODE” once.
3. Keep pressing “Down” until LED1 comes on (fully-close), then supplies the input signal (1V or 2V or 4mA) and presses “MODE” once.
4. After finishing the above settings, press “SET” once.
LED1: Fully – Closed
LED2: Fully – Open
LED3: Power
LED4: Abnormal Voltage
LED5: Wrong Input Signal
LED6: Motor Thermostat
Turn Off
LED7: Input Signal Short Circuit
LED8: Motor Current Overload
LED9: Manual Control

To reset and return to the original status – Please power off and get troubleshooting, then power on.

Download Electrical Actuators Catalogue