Mitsubishi MR-JE-40A - Roll Feed Mode Using the Roll Feed Display Function

4. HOW TO USE THE POINT TABLE
4 - 69
4.5 Roll feed mode using the roll feed display function
The roll feed display function changes the display method of the current position and the command position
in the status monitor.
By using the roll feed display function, the servo amplifier can be used in the roll feed mode. The roll feed
mode is compatible with the incremental system. Additionally, the feed speed can be changed by the
override function during an operation. Refer to section 2.4 for details.
(1) Parameter setting
No. Name Setting digit Setting item Setting value Setting
PT26 Current
position/command
position display
selection
_ _ x _ Current
position/command
position display
selection
_ _ 1 _ Select the roll feed display.
PT26 Electronic gear
fraction clear
selection
_ _ _ x Electronic gear
fraction clear
selection
_ _ _ 1 Clear a fraction of the previous command by
the electronic gear at start of the automatic
operation. Always set "_ _ _ 1" (enabled) in the
electronic gear fraction clear.
(2) Roll feed display function
When the roll feed display function is used, the status display of the current position and the command
position at start will be 0.
ST1
(Forward rotation start)
TSTP
(Temporary stop/restart)
Servo motor speed
INP (In-position)
Display of current/
command position
Forward
rotation
Reverse
rotation
CR (Clear)
Starting renews
the display from 0.
A point table whose
feed length is set to
8 is selected.
The temporary stop
position is displayed.
Remaining distance clear
will not change the display.
Next starting renews
the display from 0.
8.00
0
6.500 5.900 10.00 0 8.00
Remaining distance clear
Quick stop by
CR input
Remaining
distance clear
ON
OFF
ON
OFF
ON
OFF
ON
OFF
0 r/min
(3) Position data unit
The display unit is expressed in the unit set in [Pr. PT26], and the feed length multiplication is expressed
in the unit set in [Pr. PT03].
When the unit is set in degrees, the roll feed display function is disabled.
Refer to section 4.2.2 for details.
(4) Operation method
Only the status display of the current position and command position changes. The operation method is
the same as each operation mode.
Operation mode Detailed explanation
Automatic operation Automatic operation using the point table Section 4.2.2
Manual operation JOG operation Section 4.3.1
Manual pulse generator operation Section 4.3.2
Home position return mode Section 4.4