B–64113EN–1/01
9. SPINDLE SPEED FUNCTION
650
#7 #6 #5 #4 #3 #2 #1 #0
3705
SFA NSF
EVS
SGT
ESF
ESF
[Data type] Bit
ESF When the spindle control function (S analog output or S serial output) is
used, and the consatant 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 parametar is enabled when bit 4 (EVS)
of parameter No. 3705 is set to 1.
For the M series, SF is not output:
· For an S command used to specify maximum spindle
speed clamping (G92S–––;) in constant surface speed
control mode
· When bit 5 (NSF) of parameter No. 3705 is set to 1
SGT Gear switching method during tapping cycle (G84, G74)
0 : Method A (Same as normal gear switching method)
1 : Method B (Gears are switched during tapping cycle according to the
spindle speed set in parameters 3761 and 3762)
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
9.10.8
Parameter