Mitsubishi A1SD75P1-S3 User Manual page 348

9 MAIN POSITIONING CONTROL
In speed control
Speed
Current feed value during speed control start is maintained
(a) Current feed value not updated
Setting item
Operation pattern
Da.1
Control method
Da.2
Acceleration time No.
Da.3
Deceleration time No.
Da.4
Positioning address/
Da.5
movement amount
Arc address
Da.6
Command speed
Da.7
Dwell time
Da.8
M code
Da.9
* Refer to section "5.3 List of positioning data" for information on the setting details.
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Current feed value during speed control
The following table shows the " Md.29 Current feed value" during speed control
corresponding to the " Pr.22 Current feed value during speed control" settings.
" Pr.22 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
Speed
t
(b) Current feed value updated
Restrictions
(1) Set "Positioning complete" for " Da.1 Operation pattern." If "continuous
positioning control" or "continuous path control" is selected, an error
"continuous path control not possible" (error code: 516) occurs, resulting in a
failure to start. (In the speed control mode, "continuous positioning control" or
"continuous path control" cannot be selected.)
(2) To use M codes, set the "WITH" mode for " Pr.19 M code ON signal output
timing." If the "AFTER" mode is selected, the M codes are not output and the
"M code ON" signal does not turn ON.
(3) The software stroke limit check is not made with the "degree" unit.
Positioning data setting examples
The following table shows setting examples when "speed control (forward run:
speed control)" is set in positioning data No. 1 of axis 1.
Setting example
Positioning Setting other than "Positioning complete" is not possible in speed
complete control.
Forward run:
Set speed control.
speed control
Designate the value set in " Pr.26 Acceleration time 1" as the
1
acceleration time at start.
Designate the value set in " Pr.9 Deceleration time 0" as the
0
deceleration time at deceleration.
– Setting not required. (Setting value is ignored.)
– Setting not required. (Setting value is ignored.)
6000.00mm/min Set the speed to be commanded.
– Setting not required. (Setting value is ignored.)
Set this when other auxiliary operation commands are issued in
10 combination with the No. 1 positioning data. (" Pr.19 M code ON
signal output timing" setting only possible in the WITH mode.)
Md.29 Current feed value
The current feed value during speed control
start is maintained.
The current feed value is updated.
The current feed value is fixed at 0.
In speed control
t
Current feed value is updated
Setting details
9 - 47
MELSEC-A
In speed control
Speed
0
(c) Current feed value zero cleared
t