
B–63010EN/02
4. DESCRIPTION OF PARAMETERS
197
#7
TCW
3706
#6
CWM
CWM
#5
ORM
ORM
#4
GTT
#3
PCS
#2 #1
PG2
PG2
#0
PG1
PG1TCW
[Data type] Bit
PG2 and PG1 Gear ratio of spindle to position coder
Namber of spindle revolutions
Number of position coder revolutions
Magnification PG2 PG1
1 0 0
2 0 1
Magnification=
4 1 0
8 1 1
PCS When multi–spindle control is applied to two tool posts in two–path
control, this parameter specifies whether a position coder feedback signal
from the other tool post is selectable, regardless of the state of the
PC2SLC signal (bit 7 of G028/bit 7 of G1028) of the other tool post:
0 : Not selectable.
1 : Selectable. (To select a position coder for the other tool post, the
SLPCA signal (bit 2 of G064) and the SLPCB signal (bit 3 of G064)
are used.)
NOTE
Multi–spindle control based on the same serial spindle must
be applied to both tool posts.
GTT Selection of a spindle gear selection method
0: Type M.
1 : Type T.
NOTE
1 Type M:
The gear selection signal is not entered. In response to an
S command, the CNC selects a gear according to the speed
range of each gear specified beforehand in parameters.
Then the CNC reports the selection of a gear by outputting
the gear selection signal. The spindle speed corresponding
to the gear selected by the gear selection signal is output.
Type T:
The gear selection signal is entered. The spindle
speed corresponding to the gear selected by this signal is
output.
2 When the constant surface speed control option is selected,
type T is selected, regardless of whether this parameter is
specified.
3 When type T spindle gear switching is selected, the following
parameters have no effect:
No.3705#2 SGB, No.3751, No.3752, No.3705#3 SGT,
No.3761, No.3762, No.3705#6 SFA, No.3735, No.3736
However, parameter No.3744 is valid.
ORM Voltage polarity during spindle orientation
0 : Positive
1 : Negative