Protective
function
Error code No.
Causes
Measures
Main Sub
6-11
1. When in Trouble
Protective function (Detail of error code)
1
Before Using the Products
2
Preparation
3
Connection
4
Setup
5
Adjustment
6
When in T
rouble
7
Supplement
Analog
input 1 (AI1)
excess
protection
39
0
The voltage more than the value set
in Pr4.24 “Analog input 1 (AI1) excess
setup” has been applied to analog input
1.
• Correctly set Pr4.24 “Analog input 1 (AI1)
excess setup.”
Check the connection of I/F connector.
• Set Pr4.24 to 0 and disable the protective
function.
Analog
input 2 (AI2)
excess
protection
1
The voltage more than the value set
in Pr4.27 “Analog input 2 (AI2) excess
setup” has been applied to analog input
2.
• Correctly set Pr4.24 “Analog input 1 (AI1)
excess setup.”
Check the connection of I/F connector.
• Set Pr4.24 to 0 and disable the protective
function.
Analog
input 3 (AI3)
excess
protection
2
The voltage more than the value set
in Pr4.30 “Analog input 3 (AI3) excess
setup” has been applied to analog input
3.
• Correctly set Pr4.24 “Analog input 1 (AI1)
excess setup.”Clear the absolute encoder
first to excute the alarm clear.
Check the connection of I/F connector.
• Set Pr4.24 to 0 and disable the protective
function.
Absolute
system
down error
protection
40
0
The power supplies and battery powers
to absolute encoder were shut down, and
the built-in capacitor voltage dropped
below specified value.
Caution
Once this error occurs, the alarm cannot be cleared until the absolute
encoder is reset.
After connecting the power supply for the
battery, clear the absolute encoder.
• If you use the incremental system
Pr 0.15 "sets the absolute encoder " is set
to 1.
*
Absolute
counter
over error
protection
41
0
Multi-turn counter of the absolute
encoder has exceeded the specified
value.
• Set Pr0.15 to 2 to ignore the multi-turn
counter over.
• Limit the travel from the machine origin
within 32767 revolutions.
Absolute
over-speed
error
protection
42
0
When using absolute encoder
1) During a power failure, when only
battery power is supplied, the motor
rotational speed has exceeded the
specified value.
2) During normal operation, for some
reason, the power of encoder has been
shut down, and the rotational speed has
exceeded the specified value.
Caution
Once this error occurs, the alarm cannot be cleared until the absolute
encoder is reset.
1) Check the driving from outside in a power
outage and the rotational speed at the time,
and operate to make it below specified
value.
2) Because the mode was switched to a
power failure mode during normal activity
• Check the encoder-side power supply
voltage (5 V±5 %).
• Check the connection of connector CN2.
The alarm cannot be cleared until the
absolute encoder is reset.
• If you use the incremental system
Pr 0.15 "sets the absolute encoder " is set
to 1.
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