
B–62075E/04
5. TROUBLESHOOTING
317
The serial pulse coder or feedback cable has been found to be defective.
Check the details of the alarm using the CNC diagnostic function.
#7
3016+(n–1) 20
n : Axis number
#6
CSAL
#5 #4
PHAL
#3 #2 #1
CKAL
#0
SPHAL
DGN
#6 (CSAL) Check sum alarm has generated.
#4 (PHAL) Phase data abnormal alarm has generated.
#1 (CKAL) Clock alarm has generated.
#0 (SPHAL) Soft phase data abnormal alarm has generated.
1 Check the contens using the above diagnostic function if the alarm
generates repeatedly. If diagnostic data is the same, serial pulse coder
may be faulty. ⇒Refer to Caution
2 When diagnostic result does not the same, or other abnormality is
detected, an external noise may be generated.
CAUTION
Reference position and machine’s standard position are
different from the ones before, adjust and set them correctly.
Erroneous rotation speed count data from the serial pulse coder has been
detected.
1 If the alarm generates repeatedly, serial pulse coder may be faulty.
⇒Refer to Caution
2 When diagnostic result does not the same, or other abnormality is
detected, an external noise may be generated.
CAUTION
Reference position and machine’s standard position are
different from the ones before, adjust and set them correctly.
5.15
ALARM SV110
(PULSE CODER
ALARM1 (SERIAL))
Points
D When diagnostic number
0202 shows 1
5.16
ALARM SV114
(ABNORMAL REV
DATA)