The PK-3D-J/PT-3D-J valve control module (electric device module, electric actuator control module, electric actuator control module) uses AC380V three-phase AC power as its power source, receives DC4-20mA signals from PLC, DCS system or other operators, controls the actuator to perform switch actions, and constitutes a fully electronic electric actuator. The PT-3D-J control module adopts advanced hybrid integrated circuits and includes complete protection functions.

1、 Overview of main technical features: Sequence recognition and protector are modules used on the integral type of electric device

1. It can achieve remote control and control of 4-24V DC power supply

2. Can achieve second-line control;

3. Signal on, signal off when on; Signal off, no signal

4. Implement PLC control over electric devices.

2、 Its characteristics are explained in detail as follows:

1. Input voltage range: AC340V～420V。

2. Both three-phase three wire system and three-phase four wire system are applicable.

3. It can automatically correct the phase sequence of the three-phase power supply and correctly control the opening and closing of valves. Users can freely connect to the three-phase power supply of the electric actuator.

4. Both input and output signals are optically isolated (capable of withstanding 2000V surge voltage).

5. Position feedback 4-20mA signal load resistance: 50 Ω -700 Ω,

Accuracy: 0.5%; The three potentiometer adjustment technology greatly simplifies the adjustment process.

6. The positive/negative action selection is completed through the dip switch on the module.

7. Can detect phase loss in three-phase power supply. When the power supply is out of phase, the LED light will light up and give an alarm, automatically prohibiting all electric operations of the actuator until the three-phase power supply is normal.

If the input signal is lost, the actuator will hold the valve in place, or move to the fully open position, or move to the fully closed position of the valve based on the user's pre-set dialing on the module.

9. Working temperature range: -20 ℃ to+65 ℃.