
3.TROUBLESHOOTING AND
RECOVERY PROCEDURES TROUBLESHOOTING AND RECOVERY
B-65235EN/02
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3.3.6
Pulse Coder Error Alarm
#7 #6 #5 #4 #3 #2 #1 #0
Alarm 3 CSAL BLAL PHAL BZAL CKAL SPH
(See Subsec. 3.3.1)
Whether the alarm
occurs in each pulse
coder
α pulse
coder
Serial A
SPH (#0) Probably, pulse coder or feedback
cable is abnormal, or noise
¡¡
CKAL (#1) For serial pulse coder A, a clock
alarm has occured.
For α pulse coder, the pulse coder
or feedback cable is abnormal.
×
¡
BZAL (#2) The voltage of the pulse coder
battery is 0V. Replace the battery
and cause a return to the
reference position.
¡¡
PHAL (#4) Pulse coder or feedback cable is
abnormal
×
¡
BLAL (#5) The voltage of the pulse coder
battery is dropping.
(warning)
¡¡
CSAL (#6) For serial pulse coder A, a check
sum alarm has occured.
For α pulse coder, an LED error
has occured.
×
¡
(#7) This is not an alarm.
#7 #6 #5 #4 #3 #2 #1 #0
(See Subsec. 3.3.1)
PMAL (#3) The pulse coder or feedback
cable is abnormal.
¡ ×
LDAL (#4) The pulse coder LED is abnormal.
¡ ×