Views: 186 Author: Site Editor Publish Time: 2024-06-13 Origin: Site
PLC program is used as a bridge between industrial robots and inverter safety control. The main concern of robot system integration is safety, that is, safety input and safety output. The safety output of the robot is the input of the PLC; In addition, the emergency stop button Stop1 and the frequency converter abnormal alarm safe1 control the safe start of the robot. Since the safety operator is connected by two channels, the emergency stop signal of the button and the abnormal alarm signal of the frequency converter need to expand two external contacts as the safety input of the robot.
The PLC always detects the safety output signal of the robot as the first priority, only when the safety permits, receives the speed regulation coding signal of the robot programming instruction, otherwise the motor stops; After receiving the speed regulation code signal, control the corresponding 0 point output in PLC, so as to achieve the purpose of controlling multi-speed regulation.
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