Mitsubishi Electric M800VW Series Programming Manual page 534

M800V/M80V Series PLC Programming Manual (2/2)
13 Spindle Control
13.8 Turret Gear Change Control
Example of gear change operations when the spindle is not operating
Spindle end rotation speed [r/min]
$1 Commanded program
NC→PLC
S1 Spindle gear shift command
(X1885, X1886)
NC→PLC
$1 S function strobe (XC64)
PLC→NC
S1 Spindle stop (Y1894)
PLC→NC
S1 Spindle forward run start (Y1898)
NC→PLC
S1 Zero speed (X188C)
S1 Physical gear
PLC→NC
S1 Spindle gear select input 1, 2
(Y1890, Y1891)
NC→PLC
S1 Spindle gear select output 1, 2
(X18C2, X18C3)
NC→PLC
S1 Reach target speed (X188D)
PLC→NC
$1 M function finish 1 (YC1E)
Motor side
Gear 1 in use
Operator
NC Notifies the spindle gear shift command registers (X1885 and X1886) of the optimal gear based on the speed
(1)
from the S command.
PLC Turns the spindle stop (Y1894) ON after confirming that the currently selected physical gear and the spindle gear
(2)
shift command registers (X1885 and X1886) are different (confirms spindle gear selection input registers 1 and 2
(Y1890 and Y1891)).
PLC Changes the physical gear after confirming the zero speed register (X188C).
(3)
PLC After changing the physical gear, sets the spindle gear selection input registers 1 and 2 (Y1890 and Y1891) with
(4)
the gear corresponding to the physical gear just changed.
NC After completing the gear change, notifies the spindle gear selection output registers 1 and 2 (X18C2 and X18C3)
(5)
of the gear set to the spindle gear selection input registers 1 and 2 (Y1890 and Y1891).
PLC Turns OFF the spindle stop (Y1894) after confirming that the gear change completes.
(6)
PLC Turns ON miscellaneous function finish 1 (YC1E) after confirming speed arrival (X188D).
(7)
PLC Turns OFF miscellaneous function finish 1 (YC1E) after confirming that spindle function strobe (XC64) is OFF.
(8)
3000
1000
0
･･･
(1)
Gear 1
(2)
Gear 1
Gear 1
Gear 1
Spindle side
Neutral
Operation details
513
M03 S3000
Gear 2
(6)
(3)
Gear 2
(4)
Gear 2
(5)
Gear 2
(7)
Gear 2 in use
･･･
(8)
IB-1501668-B