Chapter 15. Troubleshooting
15-3
Screen display
Cause
Corrective action
AL-09
Output NC
Output (U, V, W) open phase.
Check motor wiring.
Replace servo driver.
AL-10
PPR ERROR
No. of encoder pulse set error.
Set the number of encoder pulse
(P1-12) accurately.
AL-11
ABS DATA
Absolute value encoder data
transmission error.
Reset and retransmit the absolute
value encoder data.
AL-12
ABS BATT
Battery voltage drops below 2.8V.
Replace battery (3.6V).
AL-13
ABS MDER
ABS encoder multi-rotation data
transmission error.
Reset and retransmit the absolute
value encoder data.
Parameter Err 1
Input of parameters, which cannot
be changed, is attempted during
Servo ON. Parameters locked.
Turn OFF the servo and change the
set value. Reset parameter locking
menu (P1-13).
Parameter Err 2
Set value input error.
Input values within the set range.
[Overload characteristic curves of Servo Driver]
(note) If AL-03 (OVER LOAD) happens often, refer servo drive overload characteristic-curve
and re-establish suitable load of servo motor.
Overload operating time
Rated
current
(%)
Min.
Max.
Set
value
100
∞
120
∞
150 300 1500 760
200 60 150
107
250 20 40 30
300 6 15 7
100
10
10000
1000
100
Motor rated current (%)
300
250
200
150
Operating time(sec)
