Mitsubishi Electric M800VW Series Programming Manual page 536

M800V/M80V Series PLC Programming Manual (2/2)
13 Spindle Control
13.8 Turret Gear Change Control
Example of gear change operation when the spindle is operating
The following example is for a turret tool stand equipped with a turret motor and a spindle motor.
Rotation speed [r/min]
2000
S4 Machine side
1500
1000
S4 Motor side
$1 Commanded program
NC→PLC
$1 T function strobe (XC68)
PLC→NC
$1 M function finish 1 (YC1E)
PLC→NC
S4 Spindle gear select input 1, 2
(Y19B0,1)(SGRA:SGRB)
NC→PLC
S4 Spindle gear select output 1, 2
(X19E2,3)(SGRA:SGRB)
Polygon tool
(Gear ratio = 4:3)
Drill (gear ratio = 2:3)
Operator
PLC Rotates the turret with the T command, changes the selected tool from the drill to the polygon tool, sets the spindle
(1)
gear selection input registers 1 and 2 (Y19B0 and Y19B1) with the polygon cutter gear.
NC Acceleration/deceleration is controlled so that the motor side speed is adjusted as appropriate for the polygon tool
(2)
gear ratio.
NC After completing the acceleration/deceleration and gear change process, notifies the spindle gear selection out-
(3)
put registers 1 and 2 (X19E2 and X19E3) of the gear set to the spindle gear selection input registers 1 and 2
(Y19B0 and Y19B1).
PLC Turns ON miscellaneous function finish 1 (YC1E) after confirming that the gear change completes.
(4)
PLC Turns OFF miscellaneous function finish 1 (YC1E) after confirming that T function strobe (XC68) is OFF.
(5)
PLC Rotates the turret with the T command, changes the selected tool from the drill to the polygon tool, and sets the
(6)
spindle gear selection input registers 1 and 2 (Y19B0 and Y19B1) with the drill cutter gear.
NC Acceleration/deceleration is controlled so that the motor side speed is adjusted as appropriate for the drill tool
(7)
gear ratio.
NC After completing the acceleration/deceleration process and gear change, notifies the spindle gear selection out-
(8)
put registers 1 and 2 (X19E2 and X19E3) of the gear set to the spindle gear selection input registers 1 and 2
(Y19B0 and Y19B1).
PLC Turns ON miscellaneous function finish 1 (YC1E) after confirming that the gear change completes.
(9)
PLC Turns OFF miscellaneous function finish 1 (YC1E) after confirming that T function strobe (XC68) is OFF.
(10)
(2)
Gear change in progress
0
S4=1500
T0202
Drill gear step
(1)
Drill gear step
(3)
Selection in progress
Gear change in progress
Polygon processing
G114 .2 H4 D - 1
･･･ G113
(5)
(4)
Polygon tool gear step
Polygon tool gear step
Selection in progress
Operation details
515
(7)
T0101 ･･･
(10)
(9)
Drill gear step
(6)
Drill gear step
(8)
Selection in progress
IB-1501668-B