Mitsubishi Electric MELSEC-Q Series User Manual page 798

Classification Warning
Warning name
of warnings code
Target position change
518
not possible
Positioning
operation
warnings
520 Torque limit value over
Torque initial value
521
selection invalid
Servo
2000 Servo amplifier warning Warning occurs on the servo amplifier.
amplifier
Warning
• A target position change request was
given for the control method other than
ABS1 and INC1.
• A target position change request is
turned ON during continuous path
control.
• A new target position address is outside
the software stroke limit range.
• A target position change request was
given during deceleration to a stop.
• A target position change request was
issued when speed change 0 flag
([Md.31] Status: b10) was ON.
• A value exceeding "[Pr.17] Torque limit
setting value" is set to "[Cd.143]
Command torque at torque control
mode" at torque control mode.
• At switching the control mode, the servo
parameter "Function selection C-B POL
reflection selection at torque control
(PC29)" is "0: Enabled" on the axis that
set feedback torque into the torque initial
value selection.
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Chapter 16 Troubleshooting
Operation status at warning occurrence
The target position change is not carried
out.
The torque is controlled with the torque
limit setting value.
The torque initial value selection is
controlled as the command torque.
The operation continues.