
15. PMC CONTROL FUNCTION
B–63503EN–1/01
778
#7
3705
#6
SFA
#5
NSF
#4
EVS
#3 #2 #1 #0
ESF
ESF
[Data type] Bit type
ESF When the spindle control function (S analog output or S serial output) is
used, and the constant surface speed control function is used or bit 7
(GTT) of parameter No. 3705 is set to 1:
0 : S codes and SF are output for all S commands.
1 : S codes and SF are not output for an S command in constant surface
speed control mode (G96 mode) or for an S command used to specify
maximum spindle speed clamping (G50S–––;).
NOTE
For the T series, this parameter is enabled when bit 4 (EVS)
of parameter No. 3705 is set to 1. For the M series, SF is not
output:
(1) For an S command used to specify maximum spindle
speed clamping (G92S–––;) in constant surface speed
control mode
(2) When bit 5 (NSF) of parameter No. 3705 is set to 1
EVS When the spindle control function (S analog output or S serial output) is
used, S codes and SF are:
0 : Not output for an S command.
1 : Output for an S command.
NOTE
The output of S codes and SF for an S command in constant
surface speed control mode (G96), or for an S command
used to specify maximum spindle speed clamping
(G50S–––;) depends on the setting of bit 0 (ESF) of
parameter No. 3705.
NSF: When an S code command is issued in constant surface–speed control,
0 : SF is output.
1 : SF is not output.
SFA: The SF signal is output:
0 : When gears are switched
1 : Irrespective of whether gears are switched