5
SUPPLEMENT
5-56
13.
G-code (Group17)
A.
Constant surface speed control ON
1. Command
Programming format
G96 Ss Pp Rr
Cancellation
G97
Function
This function controls automatically the spindle speed as the coordinates are changed
during cutting in diametral direction so as to execute cutting by keeping constant the relative
speed between tool tip and workpiece.
Code
value
Description
Unit
Setting
range
Omit
s
Surface speed
m/min
feet/min
0 to 99999
Possible
p
Axis for constant surface speed control
(P1: X-axis, P2: Y-axis)
0, 1
Possible
(1)
r
Spindle for constant surface speed control
(R1: Turning spindle, R2: Turning spindle)
0, 1
Possible
(1)
2. Notes
The last value of Ss in the control mode of G96 is stored during cancellation of the
control (G97) and automatically made valid upon resumption of the control mode
(G96).
Cancellation of the control mode (G96) by a command of G97 without specification of
Ss (revs/min) retains the spindle speed which has resulted at the end of the last
spindle control in the G96 mode.
The constant surface speed control does not apply to the milling spindle.
B.
Constant surface speed control OFF (Constant speed)
1. Command
Programming format
G97 Ss
Cancellation
G96
Function
Spindle speed (min
-1
) is controlled
Code value
Description
Unit
Setting range
Omit
s
Spindle speed
min
-1
0 to 99999
Possible (0)
D740PB006
Lower turret
Upper turret
R1
Turning spindle 2
Turning spindle 1
R2
R1
R2
Serial No. 294060
Copyright (c) 2013 YAMAZAKI MAZAK CORPORATION. All rights reserved.
Serial No. 294060