GE IC698CRE040-HN Actuator Reliability

GE IC698CRE040-HN Actuator Reliability

IC698CRE040-HN tanks have upper and lower liquid level limit protection, when the switch action sends a signal to the PLC, the signal is true and reliable, in the program design we will be the signal and the tank level meter signal comparison, if the level meter readings are also in the limit position, it shows that the signal is true; if the level meter readings are not in the limit position, the judgment may be a liquid level limit switch failure or transmission If the level meter reading is not in the limit position, it is judged that the level limit switch may be faulty or the transmission line is faulty, and the operator will be notified of the fault through the alarm system. Due to the adoption of the above methods in the program design, the reliability of the input signal is greatly improved.

After the signals from the IC698CRE040-HN site are accurately input to the PLC, the PLC executes the program, and the result is used to regulate and control the on-site device through the actuator. How to ensure that the actuator works according to the control requirements, when the actuator does not work as required, how to find out the fault? We take the following measures: when the load is controlled by the contactor, starting or stopping this type of load is transferred to the contactor coil control, whether the contactor is reliably absorbed when starting, and whether the contactor is reliably released when stopping, which is our concern.