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Normal
Overvoltage error
Undervoltage error
Input current sensor error
L1 or L2-phase open error
Abnormal power
synchronous signal
ACTM error
Undervoltage
Display examples for multiple errors:
Overvoltage (01) + Undervoltage (02) = 03
Undervoltage (02) + Power-sync signal error (08) = 0A
L1 phase open error (04) + ACTM error (20) = 24
Power circuit board
Controller circuit board
Controller circuit board
Power circuit board
Check CNAF wiring.
Defective ACTM/ P.B
Description
Detection point
Display
00
01
02
04
08
20
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