
4.DESCRIPTION OF PARAMETERS B-63950EN/02
- 186 -
#7 #6 #5 #4 #3 #2 #1 #0
SFA EVS SGT SGB ESF
3705
SFA NSF SGT SGB GST ESF
[Input type] Parameter input
[Data type] Bit path
# 0 ESF When the spindle control function (Spindle analog output or Spindle
serial output) is used, and the constant surface speed control function
is used or bit 4 (GTT) of parameter No.3705 is set to 1:
0: S codes and SF are output for all S commands.
1: For the T series:
S codes and SF are not output for an S command in the constant
surface speed control (G96) mode and a command for maximum
spindle speed clamping (G92S-- - ; (G50 for G code system A)).
For the M series:
S codes and SF are not output for an S command in the constant
surface speed control (G96) mode.
NOTE
The operation of this parameter varies between the
T series and M series.
For the T series: This parameter is valid when bit 4
(EVS) of parameter No. 3705 is set to 1.
For the M series: For an S command for maximum
spindle speed clamping (G92S-- - ;), SF is not
output, regardless of the setting of this parameter.
# 1 GST The SOR signal is used for:
0: Spindle orientation
1: Gear shift
# 2 SGB Gear switching method
0: Method A (Parameters 3741 to 3743 for the maximum spindle
speed at each gear are used for gear selection.)
1: Method B (Parameters 3751 and 3752 for the spindle speed at the
gear switching point are used for gear selection.)
# 3 SGT Gear switching method during tapping cycle (G84 and G74)
0: Method A (Same as the normal gear switching method)
1: Method B (Gears are switched during tapping cycle according to
the spindle speed set in parameters 3761 and 3762).