Appendices
A - 148
G5-series Linear Motors/Servo Drives With Built-in EtherCAT Communications
Event name Magnetic Pole Position Estimation Error 2 Event code 3854 0000 hex
Description
Magnetic pole position estimation was not completed successfully because the motor did not stop within the
Magnetic Pole Position Estimation Time Limit for Stop.
Source
EtherCAT Master Function Module
Source
details
Slave
Detection
timing
During
magnetic pole
position
estimation
Error
attributes
Level
Minor fault
Recovery
Error reset
(after resetting slave
errors)
Log category
System
Effects
User program
Continues. Operation Power drive circuit is OFF for relevant slave.
Indicators
EtherNet/IP NET RUN EtherNet/IP NET ERR EtherNet/IP LINK/ACT
–––
System
-defined
variables
Variable Data type Name
None – –
Cause and
correction
Assumed cause Correction Prevention
The value set for the Magnetic
Pole Position Estimation Time
Limit for Stop (3927 hex) is small
compared with the actual stop
time of the motor.
Increase the value set for the
Magnetic Pole Position Estimation
Time Limit for Stop (3927 hex).
Set the Magnetic Pole Position
Estimation Time Limit for Stop
(3927 hex) according to the actual
stop time of the motor.
The motor is moving when no
force is applied.
Remove causes that allow the
motor to move without force, such
as unbalanced load, from the
installation environment.
Ensure during installation that
there is no unbalanced load or
other causes that allow the motor
to move without force.
Attached
information
None
Precautions/
Remarks
“61” is displayed on the Servo Drive front panel and F161 is given as the AlarmCode (4001 hex).
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