
4.CONFIRMATION OF THE OPERATION START-UP PROCEDURE FOR βi SVPM B-65325EN/01
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4.3.2 Troubleshooting at Startup
4.3.2.1 The STATUS 1 indicator is blinking with "--."
(1) When no spindle communication alarm message is indicated on
the CNC
Check whether the CNC software option setting or bit setting is
correct.
(2) When a communication alarm message is indicated on the CNC
No. Cause of trouble Check method Action
1 The cable is incorrect.
Note that the cable used for
connecting an electric/optical
adapter and the cable
connected directly to the
CNC differ in specifications.
Replace the cable with a
correct cable.
2 The cable is defective.
Check the connector housing
section.
Repair or replace the cable.
3
The printed circuit board is
defective.
Replace the unit.
4.3.2.2 The motor does not turn.
(1) When "--" is indicated on the STATUS 1 indicator of the SVPM
Check whether spindle control signals are input. (An example for
the first spindle is shown below.)
FS0i
#7 #6 #5 #4 #3 #2 #1 #0
G070 MRDYA SFRA SRVA
G071 *ESPA
G029 *SSTP
G030 SOV7 SOV6 SOV5 SOV4 SOV3 SOV2 SOV1 SOV0
(2) When "00" is indicated on the STATUS 1 indicator of the SVPM
No spindle speed command is input.
Refer to Chapter 1 in "FANUC AC SPINDLE MOTOR αi/βi
series Parameter Manual (B-65280EN)," and check related
parameters.
(3) When an alarm number is indicated on the STATUS 1 indicator of
the SVPM
See the description of the alarm number in Part IV.