Mitsubishi Electric QD77MS User Manual page 944

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
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 target position change request was
given during speed control mode, torque
control mode or continuous operation to
torque control mode.
• A value exceeding "[Pr.17] Torque limit
setting value" is set to "[Cd.143]
Command torque at torque control
mode" at torque control mode.
• A value exceeding "[Pr.17] Torque limit
setting value" is set to "[Cd.150] Target
torque at continuous operation to torque
control mode" at continuous operation to
torque 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 initial value selection is controlled as
the command torque.