(ii) Spindle indexing at A position 180° from the indexed position
after spindle indexing and mechanical clamp and machining.
See Fig. 19.20.
M CODE FOR
SPINDLE
INDEX AND
MECHANICAL
M CODE FOR MECHANICAL UNCLAMP
CLAMP
SPINDLE INDEXING
(SpINDLE INDEX 18tY) AND CLAMP
Ef’DxaL
)
SPINDLE INDEXING
COMPLETION OUTPUT
~
II
I II
(siDxA)
M, FUNCTION
C,OMPLETE SIGNAL(FIN)
SPINDLE ROTATION
slGNAL (ExTERNAL
SEQUENCE PROCESSING)
splNDLEMEcHANlcAL
CLAMP SIGNAL
~;;~~tNN&EQuENcE
SPINDLE MECHANICAL
CLAMPCHECKSIGNAL
g;J:~:$~g;QuENcE
SPINDLE
COMMAND . .
VOLTAGE
. .
1
J1’1.
!
I
SPINDLE
CREEP SPEED
CREEP
INDEX
COMMAND (
1
SPEED
SPEED
COMMAND
Notes :
1. The spindle indexing function is available only when the control
has the S command 4-digit analog output specification. The
polarity of S 4-digit analog output should be externally determined
by SINV input.
2. To make a spindle index from the spindle reverse rotating status,
keep SINV input on while the spindle indexing request input
(SIDX) is ON.
3.When an incremental spindle indexing operation isperfonnedby
turning SIDXING input on with SINV input being on, the
A-, B-PHASE
PULSES
C-PHASEPULSE
SECONDARY PROCESS-
INGWITHOUTSPINDLE
ROTATION
Fig. 19.20
4. A spindle indexing operation is not performed during interpolation
pulse output.
5. Accumulated values of pulses by incremental command should be
10pulses or less.
6. Spindle index is performed at the edge of C-phase pulse (1
pulse/rev) as a reference pulse.
When C-phase pulse includes a
pulse width as shown below, a spindle index position between the
spindle forward and reverse rotating states is shifted by C-phase
pulse width.
19.2.43 STORED STROKE LIMIT3 BY TOOL (TP1,
I
I 1
I
I 1 I 1 I
I
1
TP2, TP4, TP8, TPS, TPSA) lNPUTS/OUTPUTS
(l) Using the following input/output signals, this function sets a
maximum of 15 types of stored stroke limit 3 as classified by
tool. This is bytheuse of the external input:
REFERENCE
I
I
PULSE OF
FORWARD
.
Tool number input —TP1, TP2, TP4, and TP8
I
DIRECTION
1
.
Area change input —TPS
REFERENCE
:~~::gF ~ .
Area change complete output —TPSA
DIRECTION
Fig. 19.21
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