
B–62835EN/01
8.TROUBLESHOOTING
319
When the spindle amplifier does not become normal state immediately
after power is turned on in the serial spindle system, this alarm is
informed.
This alarm does not occur once the system becomes ready including the
spindle system .
This alarm occurs during power on sequence before the system becomes
ready.
After the system becomes ready, serial spindle alarm is issued by alarm
749.
(1) Cable is in poor contact or spindle amplifier power is off.
(2) When display of spindle amplifier shows SU–01 or an alarm other
than AL–24 is displayed, power to the CNC is turned on.
In this case, this alarm usually occurs when the CNC’s power is turned
off while the serial spindle is operating. Turn off the power of serial
spindle once, then turn it on and starts the system.
Confirm the details of troubles on diagnostic 409.
#7
0409
#6 #5 #4 #3
SPE
#2 #1
S1E
#0
SHE
DGN
#3(SPE) 0 : In spindle serial control, the serial spindle parameters satisfies the
starting conditions for spindle amplifier.
1 : In spindle serial control, the serial spindle parameters do not satisfy
the starting conditions for spindle amplifier.
#1(S1E) 0 : The serial communication module of the CNC side is normal.
1 : The serial communication module of the CNC side is abnormal.
#0(SHE) 0 : Serial spindle module on the CNC side is normal.
1 : Serial spindle module was detected to be abnormal on the CNC side.
Reform the following countermeasures based on the above configurations:
(1) #3(SPE)1: In spindle serial control, the serial spindle parameters
does not satisfy the starting conditions for spindle
amplifier.
↓
Confirm the settings of parameters 4000s.
Especially checks the parameters those are changed from the standard
parameters.
(2) #1(SIE)1: When an abnormality is found in the 1st spindle at the start
of serial spindle control, exchange the unit if the following
check items are not concerned.
↓
Check the parameters and connections at the 1st spindle to see
whether the 1st spindle is mechanically and electrically connected.
↓
If the parameters and connections are correct, the system control
module shown below or the spindle amplifier itself is faulty.
(3) #0(SPE)1: The serial spindle module is detected to be abnormal.
Exchange the following module :
8.27
ALARM 750 (SPINDLE
SERIAL LINK
CANNOT BE
STARTED)
Points
Causes
Details of Alarms
Remedies