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4.3 TROUBLESHOOTING WITHOUT ALARM CODES
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.
Spindle related paraeters are
set incorrectly.
GR1
I
(2nd-spindle #3120, 3rd-
spindle #3130. 4th-spindle
#3140)
122
DOES NOT ROTATE
Table 4.39
Spindle Does Not Rotate
C h e c k
n
s c r e e n
on the RUN
ystem #3664-3666 for second spindle, #36'74-
676 for third spindle, and #3684-3686 for
ystem #3120 for second spindle, #3130 for
bird spindle, and #3140 for fourth sI)indle)
GRO, SOR
Input
Command Analog Voltage
(#3120, #3130, #3140)
7
6
Input
Input
Voltage corresponding to
o
0
spindle speed range
specified in NC program
Voltage corresponding to
o
1
parameter pm1412 (pm1432,
Parameter pm1413 (pm1433,
1
0
1
1
Note
1. 0: Contact open
2. Note that setting parameter SSTPAB
D,) to 1 causes SSTP to be
input reversely.
SPINDLE MOTOR
ROTATION
GEAR
GEAR
COMMAND
1 Ov
M e t h o d
And S4-digit
Analog
Voltage
V a l u e
O v
1: Contact closed
GEAR
GEAR
RANGE 3 RANGE 4
I
/
/
E
(Cent'd)
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
machine manufacturer.
This combination causes
command voltage of OV,
rotate.
When O is set, the spindle
does not ratate.
Set correct values in
parameter pm1412 (pm1432,
Correct parameters.
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Troubleshooting
