PLC Program for Conveyor Motor

Write ladder logic for the simple ON/OFF of conveyor motor and lamp indication.

1. Switch 1 ON —— conveyor motor ON
2. Switch 2 and switch3 ON ——- lamp 1 ON & lamp2 ON
3. Switch 4 or switch5 ON —– conveyor motor OFF
4. Switch 6 ON —– lamp 1 OFF, lamp2 OFF

When you turn ON  switch 1 for the first time, conveyor motor should ON.

When Switch 2 ON and switch 3 ON (Both are in ON Condition) should make Lamp 1 & 2 should go ON.

When Switch 4 or Switch 5 (Anyone ON) will make conveyor motor (Which was already turned ON by switch 1) should go OFF.

When Switch 6 ON then it will make lamps 1 & 2 (Which was already turned ON by switch 2 and switch 3) should go OFF.

PLC Program for Conveyor Motor

PLC Program for Conveyor Motor

PLC Program Description:

Rung 0:

When switch 1 is pressed, the motor will turn ON.

Switch 4 and 5 are connected as normally closed contact in series with the output which will make output to go OFF when anyone goes ON.

Rung 1:

Switch 2 and 3 are connected as normally open contact in series with the output which will make output lamp 1 and 2 to go ON only if both are ON.

Switch 6 is connected as normally closed contact to break the power line when it goes ON.

Author: Hema

Training Course: Allen Bradley PLC Course

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