SU1594489A1 - Multichannel manual control device - Google Patents

Abstract

The invention relates to electric manual control devices and can be used to control a large number of electric motors, electric valves, lighting devices. The purpose of the invention is to increase reliability. The multichannel manual control device contains a power supply source 1, blocks 2.1 ... 2. N control, limiting resistor 3, memory capacitor 4, discharge resistor 5. The purpose of the invention is achieved by introducing a capacitor, resistors and a new version of the control units. 1 il.

Description

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The invention relates to electrical manual control devices and can be used to control a large number of electric motors, electric valves, lighting devices, etc.

The purpose of the invention is to increase reliability.

 The drawing shows a circuit diagram of the device.

Multichannel device for control of coderlott source of electrical power 1, blocks 2.1-2, N control, limiting resistor

3, the storage capacitor 4 and the discharge resistor 5., The control units 2.1-2.N contain the first 6, the second 7 opening and closing t 8 contacts of the start-stop button, the closing contact 9 and the winding 10 of the relay diode 11.

The device works as follows.

The resistance value of the limiting resistor 3 is less than that of the discharge 5. In the initial state of the device, the power supply source 1 has a voltage, no buttons are pressed, the relay coils are de-energized, the capacitor is not charged.

To turn on the channel relay coil, press the channel start-stop button. Pins 6 and 7 open and pin 8 closes. On the circuit: source 1 power supply, limiting resistor 3, pins 8, capacitor

4, the power source 1 is charged by the capacitor 4. After some time (about 1 s) the button is released. The button contacts return to the original state.

According to the circuit: capacitor 4, pin 7, diode 11, winding 10 of the relay, a capacitor is discharged onto the relay coil. Pin 9 closes and connects the winding of the relay to source 1 via pin 6.

To turn off channel 2.1, briefly press a button. Contact

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6 opens and turns off the winding of the source 1 relay. During the time the button is pressed, the capacitor 4 is only partially charged, which is not enough to turn on the relay. Channel 2.1, after releasing the button, remains in the off state.

The other controls are similarly controlled, and they can be on or off in any combination.

The execution of the device according to the invention allows the button to simultaneously perform channel selection, on and off functions.

Claims (1)

Claims of the invention A multi-channel manual control device comprising a power supply and control units, each of which includes a diode, a start-stop button and a relay, pos. The power supply source through the disconnecting contact of the start-stop button, the closing contact of the relay, the relay coil of each of the control units is connected to the negative pole of the power supply, which is connected with the purpose of increasing the reliability of the device, a limiting resistor, a discharge resistor and a storage capacitor, the first terminal of the limiting resistor is connected to the positive pole of the power supply, and the first terminals of the storage capacitor and the discharge resistor to the negative pole of the power supply, the second terminal of the limiting resistor is connected to the closing contact of the contact group of the start-stop button of each of the control units, and the second terminals of the memory capacitor and the discharge resistor are connected through a series-connected disconnecting contact of the start-stop button and a diode is connected to the common terminal of the closing contact of the relay and the relay coil of each control unit.