ZOJE WR580, Руководство по эксплуатации продукта

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Error solution
Steps:
1. Check whether the inlet voltage of control box is stable, if it’s within the
specified range
of 200V-250V
2. when standby, enter monitoring interface of operation control box and see what’s the voltage appear in UDC interface,
then run the motor to see how much voltage rise while scram(usually around 410V)[the inlet voltage multiplied by 1.41
= interface voltage]
3. if the voltage showed in UDC is wrong, using Isolation transformer with 80V to supply power, then detect the both
ends voltage of + /- control board’s rectifier bridge: inlet voltage multiplied by 1.41; C73 ends impedance:
around12.5K; Two terminal voltage (means pin3 to pin4 safety line of U9): around 0.56V
4. if the voltage showed in UDC is wrong, using Isolation transformer with 80V to supply power, then see impedance of
R143 of main control board: 100
Ω ; C77 Two terminal impedance: around 3.3m; Two terminal voltage (means pin1 to
pin4 safety line of U9): around 0.56V.
E3 --- Overvoltage when shutdown (the bus voltage is greater than 450v
for 3 second when shutdown)
R143/C77
U9[LMV358]
pin
Interface udc
C73
rectifier bridge
+
、
- pole
8
4 1
5