4.3 TROUBLESHOOTING WITHOUT ALARM CODES (Cent’d)
4.3.10 SPINDLE
Cause of Trouble
Program error
● S command is
missing.
● Start M code is
missing. (M03,
M04,
etc. )
The start signal is not
issued.
Spindle rotation
command is not issued,
S5-digit specification
Spindle drive is in
alarm state.
Erroneous combination
of GRO and SOR.
O is entered to param-
eters #1412 and #1413.
DOES NOT ROTATE
Table 4.39
Spindle Does Not Rotate
Check Method
n
~heck
on the RUN screen
~heck
output signals ( #1100 level) on the 1/0
ignal screen.
;heck spindle voltage with spindle unit.
;heck #3654 to #3656 (in multiple spindle
ystem #3664-3666 for second spindle, #36’74-
676 for third spindle, and #3684-3686 for
~urth
spindle) on the 1/0 signal screen.
;heck alarm indication of spindle drive
unit:
lheck 1/0 signal #3110 (in multiple spindle
ystem #3120 for second spindle, #3130 for
bird spindle, and #3140 for fourth
sI)indle)
.ccord;ng
to the table below.
GRO, SOR Input And S4-digit
Command Analog Voltage
1/0
Signal #3110
(#3120, #3130, #3140)
S4-dlglt
Command
7 6
Analog Voltage
G~O
SiR
Value
Solution
Correct the program.
Release interlock with
reference to the manual
issued by the machine
manufacturer.
Correct the wiring and
sequence so that command
voltage develops at the
spindle unit.
Remove the cause of alarm
of spindle drive unit.
The limit switch may be
faulty or the sequencer may
malfunction. Check input
I
signals with reference to
th;
manual issued by the
machine manufacturer.
Input Input
Voltage corresponding to
o
0
spindle speed range
specified in NC program
Voltage corresponding to
o
1
parameter
pm1412
(pm1432,
3
rotate.
pm1452,
pm1472)
1
0
Parameter
pm1413
(pm1433,
When O is set, the spindle
pm1453,
pm1473)
setting value
1
1
does not ratate.
Ov
Note
1. 0: Contact open 1: Contact closed
2. Note that setting parameter SSTPAB
(pm1000 D,) to 1 causes SSTP to be
input reversely.
This combination causes
command voltage of OV,
r
and the spindle does not
Set correct values in
parameter
pm1412
(pm1432,
pm1452,
pm1472)
and
pm1413
(pm1433,
pm1453,
pm1473).
Spindle related paraeters are
set incorrectly.
#31i’0-Do
I
GR1
(2nd-spindle #3120,
3rd-
spindle #3130. 4th-spindle
#3140)
SPINDLE MOTOR
Correct parameters.
ROTATION
GEAR
GEAR
GEAR GEAR
COMMAND
RANGE
, RANGE 2
RANGE 3 RANGE 4
I
/
/
1 Ov
E
122
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