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MELSEC-Q
15 TROUBLESHOOTING
Classifica
tion of
errors
Error
code
LED
indicator
of servo
amplifier
Error name Description 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.
2033 33 Overvoltage
Converter bus voltage exceeded
400VDC.
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.
Servo
amplifier
errors
2034 34 Receive error 1
SSCNET cable communication
fault.
The same No. exists in the servo
amplifier side axis setting.