The WK and SK DC servo motor control voltage regulator adopts pulse modulation technology and is produced using advanced switching devices. It has a small size, operates without noise, high efficiency, and advanced short-circuit protection function (ensuring frequent forward and reverse rotation of the motor). The armature output voltage stability is high, and its armature voltage can be continuously adjusted from zero to the rated value, making motor speed regulation extremely convenient. Due to its high operating frequency, this series of power supplies ensures that the motor can operate stably at low speeds (i.e. without crawling), making it an ideal replacement for thyristor speed control power supplies.

Usage conditions and precautions:
Usage conditions: The altitude shall not exceed 4000m; the allowable range of AC power grid voltage fluctuation is 160V-250V;  
Environmental temperature: -20 ℃ to+40 ℃; There is no conductive dust or corrosive gases in the usage environment;  
Relative humidity ≤ 85%; A place without explosion hazard and without severe vibration and impact;  
Installed indoors with good ventilation.

Attention:
The WK and SK DC servo motor control voltage regulator should be installed in a well ventilated area and avoid contact with corrosive substances such as acids and alkalis. When connecting with an electric motor, avoid reversing the excitation of the armature; When connected to electromagnetic motors, it is absolutely not allowed to open the excitation circuit or reverse the excitation direction. Otherwise, it will damage the motor. In addition, it is not allowed to touch any components inside the machine with hands to prevent electric shock. When the capacity of fuse BX is 3-1.5 times the rated output current of the selected armature, please reliably ground the power supply housing.
Selection example:
The motor model used is: 110SZ54A3, 300R, 308W, 220V, armature current=2A
Excitation current=0.16A Select power supply current: 1 ≥ armature current+excitation current, i.e. 1 ≥ 2A+0.16A
At least WK322 power supply should be selected. If forward and reverse operation is required, SK400BH should be selected
The motor model used is 90ZYT05A3, 3000R, 92W, 24V, current=6.1A
The power supply should be SK400B-24, which has an input of 220V and an output of 0-24V. This is a special voltage product.

WK type DC power supply wiring diagram: