Mitsubishi Electric QD75MH1 User Manual page 731

15 TROUBLESHOOTING
LED
Classifica
Error indicator
tion of
code of servo
errors
amplifier
2033 33
Servo
amplifier
errors
2034 34
Error name
Converter bus voltage exceeded
Overvoltage
400VDC.
SSCNET
Receive error 1
fault.
Description
cable communication
15 - 42
MELSEC-Q
Cause
Lead of built-in regenerative brake
resistor or regenerative brake option
is open or disconnected.
Though the regenerative brake
option is used, the DRU parameter
" Pr.102 Regenerative brake
resistor" setting value is "0000 (not
used)".
Lead of built-in regenerative brake
resistor or regenerative brake option
is open or disconnected.
Regenerative transistor faulty.
Wire breakage of built-in
regenerative brake resistor or
regenerative brake option.
Capacity of built-in regenerative
brake resistor or regenerative brake
option is insufficient.
Power supply voltage high.
Short circuit in the servo amplifier
out put phase U, V, W phase.
The SSCNET cable is
disconnected.
The surface at the end of SSCNET
cable got dirty.
The SSCNET cable is broken or
severed.
Noise entered the servo amplifier.
The same No. exists in the servo
amplifier side axis setting.