When the power input voltage does not meet the input voltage range of the Emerson module, a fault alarm may occur. Abnormal input voltage may be caused by unstable power supply voltage, short circuit of the line, etc.
When the current output by the power supply exceeds the set current range, the built-in overcurrent protection function of the power module will automatically start, resulting in a fault alarm. Overcurrent protection may be caused by excessive load current or excessive current caused by too large resistance of the power supply line.
During the working process, the electronic components in the power module will generate heat. The built-in overheat protection function of the Emerson module can effectively prevent damage caused by overheating, but when the temperature rises to a certain extent, a fault alarm will still occur.
