CONTROL CIRCUIT OF DCL ELECTRIC ACTUATOR

Type A: Limit Switch (Standard Type)

Function:
The opening and closing operation is realized by the circuit switching, outputting the position signal with source (full opening and closing).
Type B: With Intermediate Position Switch

Function:
The opening and closing operation is realized by the circuit switching, outputting a group of signal without source for the full opening and closing of valve.
Construction:
With Two Intermediate Position Switches
Type C: With Potentiometer

Function:
The opening angle of valve is controlled by the circuit switching, outputting the resistant signal relative to the opening position.
Construction:
With 500Ω or 1000Ω potentiometer
Type D: With Potentiometer and Intermediate Position Switch

Function:
The opening angle of valve is controlled by the circuit switching, outputting the resistant signal relative to the opening position and outputting a group of the position signal without source at the same time.
Construction:
With potentiometer and intermediate position switch
Type E: With Servo Controller Module (adjusting Type)

Function:
For adjustment. Input: 4~20mADC or 1~5VDC; output: 4~20mADC
 Construction:
With Servo Controller and 1kΩ Potentiometer
Type F: With R/I Converter

Function:
To output signal of 4～20mADC for valve (full-range feedback for valve)
Construction:
With R/I converter and 1kΩ Potentiometer
Control Circuit for DC Motor

Function:
The polarity between the positive and the negative can be exchanged by means of the external circuit in order to realize the opening and the closing operation and to output a group of contact-points without source (full opening and closing).
Construction:
With intermediate-position switch
3-phase, 380 VAC Control Circuit for Motor

Function:
By means of the external phase-reversing circuit, the opening or closing operation of the motor can be realized for running normally or reversibly and outputting a group of contact-point signal without source (full opening and closing).
Construction:
With intermediate position switch