1, the proportion of modulating the overall style of single-phase, three-phase electric actuator using non-contact optical coupling zero trigger solid-state relay to control the motor. Only high reliable remote-controlled import AC contactor control. 

 2, place the machine operating functions 

 Product with no through shaft magnetic switch, achieved by operating the switch in place (live) / remote control switch and open the on / off operation of the actuator operation. Weak to control the actuator switch circuit. Switch can be locked to prevent unauthorized operation of local, flexible and reliable security. If you do not operate the machine, choose no "local operation" structured products. 

 3, manual operation 

 Actuator with handwheel, so that the power failure in the handwheel to open and shut to control the action, when necessary by hand wheel hand wheel hand wheel into the direction to turn the hand wheel operation, the operation is complete, the hand wheel automatic clutch, electric hand wheel does not turn. 

 4, over-torque protection 

 Actuator has been measured torque protection agency, the valve can accurately measure the torque, when more than set the range, located within the actuator torque switch sends a signal to the control circuit. Motor is stopped. To protect the valve and actuator power transmission parts and motors. 

 5, special servo motor 

 Actuators used in three-phase or single motor with high starting torque, low inertia, small starting current, with good special servo motor characteristics. Motor allows the frequent start, start 1200 times per hour is generally allowed, SM series motors allow start 1800 times per hour, is frequently used for motion special conditions and design. 

 6, the stroke control mechanism 

 Stroke control is installed in the actuator by means of the cam, the cam by a set of reduction gears and gear actuator shaft connected to the cam is equipped with four independently adjustable cam, can control the four micro- switch, used to control the actuator position the upper and lower contact output (electric shock capacity 5A 250V) 

 8, the position indicator 

 Output current as a position indicator, all specifications actuators are equipped with position feedback output current conversion circuit current, or as a position indicator for the input signal comparison. Output current 4-20MA. Output impedance, "500, constant current output. 

 Standard adjustment and intelligent feedback current circuit and the logic of the actuator control circuit as a whole, well-controlled actuator has a separate two-wire current module, current output 4-20MA 

 9 lock-bit feature off signals 

 Regulation of all electric actuators with 4-20MA analog control signal detection circuit opened automatically, if you can stay in place while the actuator can also be run to set the emergency position. 

 10, the dynamic braking 

 Dynamic brake actuator is factory standard configuration, he used to prevent excessive motor when the valve caused by excessive shock. Dynamic brake with electric braking mode, with precise valve position sensor valve stroke, and the control circuit controls the motor running and accurate positioning.