DKJ-210 DKJ-310 Electric actuator

                                                   DKJ-210 DKJ-310 Electric actuator

Overview of DKJ-210 DKJ-310 Electric actuator

DKJ electric actuator is the executive unit of DDZ-II electric unit combination instrument. It includes two independent parts, the actuator and the servo amplifier. It takes the power supply as the power, receives the unified standard DC signal of 0 ~ 10mA, converts this into the angular displacement corresponding to the input signal, and automatically operates the damper, valve and other regulating mechanisms to complete the automatic regulation task.

The automatic regulation system of DKJ electric actuator and dfd-09 electric operator can realize the worry free switching of the regulation system from manual to automatic (automatic to manual).

Working priciple of DKJ-210 DKJ-310 Electric actuator

When the electric operator does not act and there is no input signal at the output end of the servo amplifier (i.e. II = 0), the servo amplifier does not output, the two-phase servo motor will not rotate, and the output shaft is stable at the pre selected zero position. At this time, the output current of the position transmitter is also zero. When the electric operator is turned up, the DC electrical signal II is generated at the input end of the servo amplifier, and then the signal Li is compared with the feedback signal if through the pre magnetic amplifier in the servo amplifier. After the combined action of amplification, the positive deviation electrical signal I (where = II if > 0) is generated to make the triggerGenerate pulse, turn on the corresponding main circuit, connect ~ 220V power supply, drive the servo motor to rotate forward, and turn the output shaft angle after mechanical deceleration θ (0 ° ~ 90 °) is linearly converted into a negative input signal until if ≌ Li makes the deviation signal o i = 0 again, the servo motor stops rotating and the output shaft stays at a new position.

Features of DKJ-210 DKJ-310 Electric actuator

1. The position transmitter of DKJ electric actuator has constant current output characteristics, with output current of type II 1-10madc and type III 4-20madc.

2. The output signal of DKJ electric actuator position transmitter has strong load capacity, and the load capacity is ≤ 750 Ω.

3. The travel limit mechanism can be freely selected, with convenient assembly and commissioning, accurate positioning and good repeatability.

4. Single machine servo motor has the mechanical characteristics of valve motor, can withstand frequent starting, and is equipped with brake.

5. DKJ electric actuator adopts 1 / 25. High reliability conductive plastic potentiometer with high resolution.

6. The electrical components used for position feedback are screened and tested at high and low temperature after assembly to ensure the high reliability requirements of the actuator. MTBF ＞ 25000 hours

7. It accepts the signal of the adjustment unit (or computer) and automatically controls the actuator to complete the adjustment task. It is widely used in power stations, chemical industry, petroleum, metallurgy, building materials, heating, light industry, water treatment and other industries. It can output torque and 90 degree angle of rotation.

8.DKJ type electric actuator, equipped with various electric operators, can complete the "manual ←→automatic" undisturbed switching of the adjustment system, and the remote manual operation of the adjusted object in time.

Main tech data of DKJ-210 DKJ-310 Electric actuator

Input signal: DC 0 ~ 10mA

Effective displacement of output shaft: 0 ~ 90 º (rotation angle)

Input resistance: 200 Ω

Input channels: 3 (isolated from each other)

Power voltage: 220V, 50 ~ 60Hz

Operating ambient temperature: - 10 ~ 55 ℃

Ambient humidity: ≤ 95%

Note: Any special design or question of DKJ-210 DKJ-310 Electric actuator, kindly contact the manufacturer for more details.