11. TROUBLESHOOTING
B–63525EN/02
786
S2E: 0 : The second spindle is normal during the spindle serial control startup.
1 : The second spindle was detected to have a fault during the spindle
serial control startup.
S1E: 0 : The first spindle is normal during the spindle serial control startup.
1 : The first spindle was detected to have a fault during the spindle axis
serial control startup.
SHE: 0 : The serial communications circuit in the CNC is normal.
1 : The serial communications circuit in the CNC was detected to have a
fault.
The details of spindle alarm No. 750 are displayed in the diagnosis display
(No. 409) as shown below.
#7
0409
#6 #5 #4 #3
SPE
#2
S4E
#1
S3E
#0
SHE
SPE: 0 : In the spindle serial control, the serial spindle parameters fulfill the
spindle unit startup conditions.
1 : In the spindle serial control, the serial spindle parameters do not fulfill
the spindle unit startup conditions.
S4E: 0 : The fourth spindle is normal during the spindle serial control startup.
1 : The fourth spindle was detected to have a fault during the spindle
serial control startup.
S3E: 0 : The third spindle is normal during the spindle serial control startup.
1 : The third spindle was detected to have a fault during the spindle axis
serial control startup.
SHE: 0 : The serial communications circuit in the CNC is normal.
1 : The serial communications circuit in the CNC was detected to have a
fault.
1) If SPE is set to “1”
Re–check the serial spindle parameters with numbers 4000 to 4999.
2) If S1E is set to “1”
Because a fault was detected on first spindle, check its connection and
parameter settings.
3) If S2E is set to “1”
Because a fault was detected on second spindle, check its connection
and parameter settings. This alarm is issued if the parameter settings
are such that second spindle is used although only first spindle is used.
4) IF S3E is set to ”1”
Because a fault was detected on third spindle, check its connection and
parameter settings.
An alarm also occurs when the setting is made so that the third axis is
intended to be connected even though it is not actually connected.
5) IF S4E is set to ”1”
Because a fault was detected on fourth spindle, check its connection
and parameter settings.
An alarm also occurs when the setting is made so that the fourth axis
is intended to be connected even though it is not actually connected.
If any of the above actions does not solve the problem, the motherboard,
servo CPU board, or spindle amplifier may be defective.
6) If SHE is set to “1”
Replace the motherboard or sub–CPU board.
D 3rd and 4th spindles