14 TROUBLESHOOTING
14.5 List of Error Codes
615
14
Errors related to synchronous control are described below.
Error code
(Hexadecimal)
Error name Error details and causes Remedy
1BA0H Outside input axis
type setting range
Setting values of input axis parameters "[Pr.300] Servo
input axis type" and "[Pr.320] Synchronous encoder
axis type" are outside the setting range.
[Operation status at error occurrence]
The setting becomes invalid for input axis.
Set a value within the setting range.
1BA1H Outside input axis
unit setting range
Setting value of the input axis parameter "[Pr.321]
Synchronous encoder axis unit setting" is outside the
setting range.
[Operation status at error occurrence]
The setting becomes invalid for input axis.
Set a value within the setting range.
1BA2H Outside input axis
unit conversion
denominator range
The input axis parameter "[Pr.323] Synchronous
encoder axis unit conversion: Denominator" is set to 0
or lower.
[Operation status at error occurrence]
The setting becomes invalid for input axis.
Set a value within the range of 1 to 2147483647.
1BA3H Outside input axis
length per cycle
range
The input axis parameter "[Pr.324] Synchronous
encoder axis length per cycle" is set to 0 or lower.
[Operation status at error occurrence]
The setting becomes invalid for input axis.
Set a value within the range of 1 to 2147483647.
1BA4H Outside input axis
smoothing time
constant range
The input axis parameters "[Pr.301] Servo input axis
smoothing time constant" and "[Pr.325] Synchronous
encoder axis smoothing time constant" are set other
than 0 to 5000.
[Operation status at error occurrence]
The setting becomes invalid for input axis.
Set a value within the range of 0 to 5000.
1BA5H Outside input axis
rotation direction
restriction setting
range
The input axis parameters "[Pr.304] Servo input axis
rotation direction restriction" and "[Pr.328] Synchronous
encoder axis rotation direction restriction" are set other
than 0 to 2.
[Operation status at error occurrence]
The setting becomes invalid for input axis.
Set a value within the range of 0 to 2.
1BA6H Input axis unit
conversion overflow
Internal operation overflow occurred because the unit
conversion ratio (unit conversion: Numerator/unit
conversion: Denominator) of the input axis is too large.
[Operation status at error occurrence]
The input axis operation is immediately stopped, and a
connection becomes invalid.
• Set a smaller unit conversion ratio (unit conversion:
Numerator/unit conversion: Denominator) of the
input axis.
• Decrease the input axis speed.
1BA7H Speed-position
switching control
start in servo input
axis not possible
When the input axis parameter "[Pr.300] Servo input
axis type" is current feed value or read current value,
the speed-position switching control is started with the
detailed parameter 1 "[Pr.21] Current feed value during
speed control" set to other than "1:Update of current
feed value".
[Operation status at error occurrence]
The speed-position switching control does not start.
• Set "[Pr.300] Servo input axis type" to "Servo
command value" or "Feedback value".
• Set "[Pr.21] Current feed value during speed control"
to "1:Update of current feed value".
1BA8H Synchronous
encoder via servo
amplifier
communication error
• The hardware of the synchronous encoder or the
servo amplifier is faulty.
• The synchronous encoder cable is disconnected.
• Communication to the synchronous encoder cannot
be established.
[Operation status at error occurrence]
The connection of synchronous encoder axis becomes
invalid.
• Replace the synchronous encoder or the servo
amplifier.
• Check the synchronous encoder cable.
• Check the connected synchronous encoder.
• Check whether the synchronous encoder cable is
faulty.
1BA9H Synchronous
encoder via servo
amplifier battery
error
The battery which the servo amplifier connected
synchronous encoder is empty or the battery is
disconnected.
[Operation status at error occurrence]
The synchronous encoder control continues.
Replace the battery or check the battery connection of
the servo amplifier.
1BE0H Outside main input
axis No. range
• Setting value of the synchronous parameter "[Pr.400]
Main input axis No." is outside the setting range.
• The same servo input axis No. as the output axis is
set in the synchronous parameter "[Pr.400] Main
input axis No.".
[Operation status at error occurrence]
Synchronous control does not start.
• Set within the range.
• Do not set up the same servo input axis number as
the output axis.
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