- FORWARD AND REVERSE MOTOR CONTROL SCHMETIC INSTALL
- FORWARD AND REVERSE MOTOR CONTROL SCHMETIC DRIVER
Working principle of double interlock forward and reverse control circuit
FORWARD AND REVERSE MOTOR CONTROL SCHMETIC DRIVER
Circuit diagram of double interlock forward and reverse control STK681-332GEVB, Brand ON Semiconductor, Power Management Function, Kit Name Current Control Forward/Reverse DC Motor Driver Evaluation Board, Featured Device STK681-332-E. The on-off of the circuit can be detected by the buzzer of the multimeter, and the resistance of the contactor coil can be measured by the buzzer as well. In the case of unskilled, it is better to connect the primary circuit and primary circuit of the secondary line Ģ.
FORWARD AND REVERSE MOTOR CONTROL SCHMETIC INSTALL
Mark the drawings first, and then install and connect the objects according to the drawings. Wiring and maintenance of electrical diagramġ. In this website we already published about Speed control of DC motor with timer IC, here this circuit constructed for the basic motive to meet the forward / Reverse operation of DC motor with speed control. Two-Wire Control Two-wire control, as seen in configuration 1, consists of a control device containing one set of contacts used to facilitate the on an off operation of a pilot device. Mechanical interlock: only one working contactor is allowed by a pair of normally open and normally closed buttons (double insurance) The basic control circuits include two wire, three wire controls, manual /automatic, sequential control, stop/start, forward reverse, and jogging circuits. Electrical interlock: only one control operation with power on is allowed for two contactors in the same time period Electrical self-locking (definition): rely on the contactor’s own normally open electric shock to keep its coil energized Ģ. Master the two key points of the electrical diagram: 1.
first look at the power supply, and then look at each circuit in sequence.Īnalyze and understand the key points of electrical diagram: understand the graphic symbols and text symbols of components, and master the structure and function of components. Auxiliary circuit: from top to bottom, from left to right, i.e. Main circuit: from the load end to the power end, i.e. Thermal relay (FR): overload protection ġ. Contactor (km): it can make and break large current frequently, with arc extinguishing function and under voltage protection 4.
Air switch (QS): power on / off, with short circuit, serious overload and undervoltage protection 2. The following figure is a common forward and reverse control circuit, which is protected by double interlocking of contactor and button.ġ. Control circuit diagram of contactor and button double interlock forward and reverse