IS810N-INT Series Servo System User Manual (Brief)Chapter 7 Troubleshooting
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E1.D09: incorrect software position setting 
Cause:
The lower limit of the software position is greater than the upper limit.
Probable Cause Conrming Method Corrective Action
The lower limit 
of the software 
position is greater 
than the upper limit.
The lower limit (607D-01) of the parameter 
soft limit is greater than the upper limit 
(607D-02). 
Reset the parameters.
E1.D10: incorrect origin position setting 
Cause:
The origin offset exceeds the soft limit.
Probable Cause Conrming Method Corrective Action
The origin offset 
exceeds the soft 
limit.
The value of the parameter 607Ch exceeds 
the soft limit 607D-01 and the soft limit upper 
limit 607D-02.
Reset the parameters.
7.2.4 Troubleshooting of Warnings
E1.601: Home attaining warning
Cause:
When using the homing function, home is not found within the time set in 2005-24h.
Probable Cause Conrming Method Corrective Action
1. The home switch 
fails.
There is only high-speed searching 
and no low-speed searching during 
the homing operation.
After high-speed searching of 
homing, the drive keeps reverse 
low-speed searching.
If a hardware DI is used, check 
whether the DI function has 
been allocated to a DI in group 
2003h and then check the wiring 
of the DI. Manually change the 
DI logic and observe whether 
the servo drive receives DI 
level change in 200B-04h. If the 
home signal is Z but it cannot 
be found at all times, check the 
Z signal status.
2. The search time is 
too short.
Check whether the time for homing 
set in 2005-24h is too short.
Increase 2005-24h.
3. The speed for 
searching for the home 
switch signal at high 
speed is too small.
Check the distance from the initial 
position of homing to the home 
switch. Then check whether 6099-
01h is too small, resulting in a very 
long time of nding home switch.
Increase 6099-01h.
4. The setting of 
the home switch is 
improper.
Check whether the limit 
signals at two sides are active 
simultaneously.
Check whether a limit signal is 
active simultaneously with the 
home signal.
Set the position of the hardware 
switch properly.