Intermittent control circuit

In production, according to the needs of the process, the motor needs to stop and run from time to time
, and the front c time is controlled. The circuit shown in Figure 4-34. The road can realize this
control method.
  The power switch Qs and manual switch SA on the platform, the AC contactor
KM1 and the time relay KTI are electrically closed, the main contact of KM
is closed, and the electric hoist M starts to run. After running for a period of time (
determined by the KTI relay), the delayed closing contact of KT1
closes, connecting the circuit of relay KA and time relay KT2, and
the moving contact of KA opens; KM loses power, and motor M stops
working . After a period of time, the delayed disconnection contact of KT2 is disconnected
, causing the relay KA to be de-energized and released. The movable contact of the intermediate relay KA
is closed, and the KM coil circuit is connected again, and the motor restarts.
  The push button switch SB can control the motor at any time during the motor stall period .