Product Description
Product synopsis:
PQR series motor soft starter is suitable for ac 380 v, 50 Hz (60), rated current 1200 a and below 5.5 KW to 600 KW three-phase ac squirrel-cage asynchronous motor, using the panel display mode operation, and convenient user parameter Settings, modify, and understand the functions of soft start, soft starter and convenient user observation and the performance of the motor;Don't need to add thermal relay, that is, can be in the process of motor starting and running a perfect protection function;Using closed-loop control, greatly improving the soft and soft starting torque of the motor torque stability and reliability of the parking;Runtime USES the bypass contactor, running power consumption is almost zero, can not only improve the reliability and reduce the volume.
1, use:
The control panel to match the main controller, is used in the controller and the protection of crane three-wire system of asynchronous motor starting, speed control, reversing and brake.Main circuit voltage of ac 50 hz, 380 v, the control circuit voltage of ac 50 hz, 220 v, 220 v or 220 v dc.Apply to the following work environment.
(1) the altitude does not exceed 1000 m;
(2) the surrounding medium temperature is not higher than + 40 ℃, no less than - 30 ℃;
(3) the relative humidity of not more than 85%;
(4) the surrounding medium no explosion danger, no conductive powder and can damage the insulation of the corrosion gas and so on.
2, model:
(1) the structure formation: P - control panel X-ray control box
(2) industrial application code: Q - crane
(3) the control object or action: R1, 3, 5 - translation agency R2, 4 - lifting mechanism R6 - grab lifting mechanism.
(4) design the serial number or line scheme: expressed in Arabic numerals.
(5) basic specification code: main contactor rated current amp said.
(6) category code: control circuit power nature said.Such as (J J - can be omitted), Z - dc,
(7) auxiliary specification code: by using the brake said.Such as T - electromagnet, Y - hydraulic solenoid.
(8) control circuit voltage code: 2-220 - v;3-380 - v;Only 220 v direct current control circuit, do not add code.
(9) derived code: Y said rain type control box
3, the classification of control station:
3.1, according to the structure points: (1) the control panel.(2) the control box.
3.2, control of body points: (1) PQR1, 3, 5 series translation agency control station.(2) PQR2, 4 series hoist control station.(3) series PQR6 grab hoist control station.
3.3 according to the nature of control loop current points: (1) the communication control circuit control station.(2) dc control circuit control station.
4 overview, structure,
Article the structure of the control panel for the frame, all electrical components are installed on one or several made of Angle steel skeleton (of several skeleton together is the combination of screen).Control panel of all electrical components and wiring board before.The connection in front of the screen, main return route line behind the screen.Control circuit wiring after go trough or into wire, are placed in front of the screen.
