Circuit breaker Fault performance, cause analysis, summarized excluded

Failure Analysis

Boot no output, no voltage indication, or no start

⒈ overvoltage or undervoltage Circuit breaker‍ protection of the (internal regulator output voltage adjustable potentiometer)

⒉ wrong phase and lack of protection of the (three-phase exchange any two phases)

⒊ main control board is bad (replace)

⒋ output AC is bad (replace)

The output voltage is not normal

⒈ same tune regulator (replace sub-tone regulator)

⒉ over the regulator's own voltage range (to replace a wide range of regulator)

⒊ travel limit switch is bad (replace)

⒋ phase circuit board is mcb circuit breaker‍ bad (replace)

⒌ servo motor burned (replacement)‍