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12 Troubleshooting and Maintenance
12-20
G5 Series AC Servo Drives With Built-in EtherCAT Communications, Linear Motor Type
*3
When Motor Velocity Demand Value After Filtering is forced to 0 during an immediate stop due to a halt or Positive/
Negative Drive Prohibition Input, the speed deviation immediately increases. The speed deviation also increases when
the Motor Velocity Demand Value After Filtering starts. Therefore, provide enough margin when making the settings.
*4
This operation is performed for safety and is not an error.
*5
The initialization of position data occurs at any of the following four timings.
After the control power was turned ON, after a Config operation, after FFT was executed, and after a trial run was
executed
Troubleshooting Errors Related to EtherCAT Communications
Error No. (hex)
Name
Error
timing
Cause
Measures
Main
Sub
83
1
EtherCAT
state
change
error
Occurs
during
operation.
A communications state change
command was received for which the
current communications state could
not be changed.
Check the specifications of the
communications state change
command for the host controller.
2
EtherCAT
illegal state
change
error
Occurs
during
operation.
An undefined communications state
change command was received.
Check the specifications of the
communications state change
command for the host controller.
3
Communications
sync error
Occurs
during
operation.
The number of consecutive errors in
receiving data during the
communication sync time exceeded
the value specified for the
Communications Control Setting.
•
Connect the EtherCAT
communications cable correctly.
•
Check to see if the EtherCAT
communications cable is exposed
to excessive noise.
•
Check that the host controller
completed communications before
a interruption is generated in the
synchronous cycle (SYNC0 cycle).
4
Sync Error
Occurs
during
operation.
Control PCB error
Replace the Servo Drive.
5
Sync
Manager
WDT Error
Occurs
during
operation.
PDO communications were stopped
for more than the specified period of
time.
•
Check the operation of the host
controller.
•
Connect the EtherCAT
communications cable correctly.