servo system principle in China

Servo system is a part of DAKUMAR SERVO POWER SAVE  INJECTION MOULDING MACHINE.
1.DAKUMAR Servo system work should give out a construction from machine controller,
2.then the servo driver will have a PG and make speed close-loop when it gain the construction ,
3.After that ,sevo mator will work,the savo mator drive the oil pump,oil pump drive the direction valve,
as well,pressure sensor will make a pressure and pass it to pressure close-loop
4.Last,the directional valve drive the motor cylinder.
It is the whole servo system work principle.
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