CHAPTER 1: ALARMS 1-28
Alarms and warning list
When a fault occurs during operation, the corresponding alarm or warning is displayed. If any alarm or
warning has occurred, refer to Section Alarm definitions and causes and take the appropriate action. Set
"1
" in parameter No. 59 to output the alarm code in ON/OFF status across the corresponding pin
and SG. Warnings (AL.90 to AL.E9) have no alarm codes. Any alarm code is output at occurrence of the
corresponding alarm. In the normal status, the signals available before alarm code setting (CN1B-19,
CN1A-18, and CN1A-19) are output.
The alarms marked in the alarm deactivation column can be deactivated by the corresponding
operations.
(Note 2) Alarm code Alarm deactivation
Display
CN1B-
19 pin
CN1A-18
pin
CN1A-19
pin
Name
Power
OFF→ ON
Press
"SET" on
current
alarm
screen.
Alarm
reset
(RES)
signal
AL.10 0 1 0 Undervoltage
AL.12 0 0 0 Memory error 1
AL.13 0 0 0 Clock error
AL.15 0 0 0 Memory error 2
AL.16 1 1 0 Encoder error 1
AL.17 0 0 0 Board error
AL.19 0 0 0 Memory error 3
AL.1A 1 1 0 Motor combination error
AL.20 1 1 0 Encoder error 2
AL.24 1 0 0 Main circuit error
AL.25 1 1 0 Absolute position erase
AL.30 0 0 1 Regenerative error
AL.31 1 0 1 Overspeed
AL.32 1 0 0 Overcurrent
AL.33 0 0 1 Overvoltage
AL.35 1 0 1 Command pulse frequency error
AL.37 0 0 0 Parameter error
AL.45 0 1 1 Main circuit device overheat
AL.46 0 1 1 Servo motor overheat
AL.50 0 1 1
Overload 1 (Note 1) (Note 1) (Note 1)
AL.51 0 1 1
Overload 2 (Note 1) (Note 1) (Note 1)
AL.52 1 0 1 Error excessive
AL.8A 0 0 0 Serial communication time-out
error
AL.8E 0 0 0 Serial communication error
Alarms
88888 0 0 0 Watchdog
AL.90 Home position return incomplete
AL.92 Open battery cable warning
AL.96 Home position setting warning
AL.98 Software limit warning
AL.9F Battery warning
AL.E0 Excessive regenerative warning
AL.E1 Overload warning
AL.E3 Absolute position counter warning
AL.E6 Servo emergency stop warning
Warnings
AL.E9
Main circuit off warning
Removing the cause of occurrence
deactivates the alarm automatically.
Note: 1. Deactivate the alarm about 30 minutes of cooling time after removing the cause of
occurrence.
2. 0: Pin-SG off (open)
1: Pin-SG on (short)
QUICK LOAD SERVO 65/80
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