
B–65162E/03
10. INTERFACE SIGNALS
393
(3) Spindle control DI signals
Symbol Signal Description
TLMHA, B
Torque limit
command
(under devel-
opment)
Limits the output torque of the spindle motor. Set the limit
using the spindle parameter.
TLMHA
0 : No torque limit
1 : Limits the torque to the value
specified with the parameter.
CTH1A, B
CTH2A, B
Clutch or gear
signal
Specify one of the following conditions according to the
clutch or gear status.
Used to select a spindle control parameter.
CTH1 CTH2
0 0 : High gear
0 1 : Medium high gear
1 0 : Medium low gear
1 1 : Low gear
SRVA, B
Reverse rota-
tion command
Specifies the rotation direction when the spindle motor is
viewed from the shaft.
SRV SFR
0 0 : Stop
SFRA, B
Normal rotation
command
0 1 : Normal rotation
(CCW: Counterclockwise)
1 0 : Reverse rotation (CW: Clockwise)
1 1 : Stop
ORCMA, B
Orientation
command
Used for spindle orientation control.
0:–
1 : Spindle orientation control is performed.
MRDYA, B
Machine ready
signal
Used for motor exectation ON and OFF of spindle amplifi-
er module (No electro–magnetic contactor turned no nor
off)
0 : Motor is not excited.
1 : Motor is ready for operation.
ARSTA, B
Alarm reset sig-
nal
Used to reset the spindle alarm.
”1”
”0”
*ESPA, B
Emergency
stop signal
0 : Emergency stop
1 : Normal operation
INTGA, B
Speed integral
control signal
0 : Enables speed integral control.
1 : Disables speed integral control.
INDXA, B (*)
Orientation stop
position change
command
”1”
”0”
ROTAA, B
Orientation stop
position change
rotational direc-
tion command
Used for orientation in which the stop position is specified
externally.
0 : Counterclockwise (CCW)
1 : Clockwise (CW)
The alarm is reset when the level of
the signal is changed from 1 to 0.
32 ms min.
Used for orientation in which the
stop position is specified externally.
When a change from 1 to 0 occurs,
new stop position data is acquired
to move the machine to the newly
acquired position and stop it there.