Mitsubishi Electric MELSEC-L LD75P User Manual page 419

(2) Current feed value during 1-axis speed control
The following table shows the "[Md.20] Current feed value" during 1-axis speed control corresponding to the
"[Pr.21] Current feed value during speed control" settings.
"[Pr.21] Current feed value during speed control" setting
0: Do not update current feed value
1: Update current feed value
2: Zero clear current feed value
In speed control
Speed
Current feed value during speed control start is maintained
(a) Current feed value not updated
(3) Restrictions
• Set "Positioning complete" in "[Da.1] Operation pattern". The axis error "Continuous path control not
possible" (error code: 516) will occur and the operation cannot start if "continuous positioning control" or
"continuous path control" is set in "[Da.1] Operation pattern". ("Continuous positioning control" and
"continuous path control" cannot be set in speed control.)
• Set the WITH mode in "[Pr.18] M code ON signal output timing" when using an M code. The M code will not
be output, and the M code ON signal will not turn ON if the AFTER mode is set.
• The error "No command speed" (error code: 503) will occur if "current speed (-1)" is set in "[Da.8] Command
speed".
• The software stroke limit check will not carried out if the control unit is set to "degree".
The current feed value at speed control start is maintained.
The current feed value is updated.
The current feed value is fixed at 0.
In speed control
Speed
t
Current feed value is updated
(b) Current feed value updated
CHAPTER 9 MAJOR POSITIONING CONTROL
[Md.20] Current feed value
In speed control
Speed
t
0
(c) Current feed value zero cleared
9
t
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