Summa Series Servodrive Product Manual
Document Version: V1.01
(Dec, 2019)
© 2019 ESTUN Automation Co., Ltd. All right reserved.
The encoder may not be connected or
disconnected.
Check if the encoder
cable is connected
properly, and keep it
away from the
electromagnetic
interference.
The encoder detected the Motor has
been overspeed, it may be caused by:
The battery power is too lower or
disconnected.
The value of the Motor acceleration
is too large
There is an internal error in the
encoder. The causes nay be code wheel
contamination or damage, low encoder
supply voltage, encoder aging.
There is an internal error in the
encoder. Maybe the read and write
operations are too frequent, or internal
BUSY was set.
Check-bit and
End-bit Error
There is an error in the check-bit and
end-bit of the encoder control domain.
The data such as the phase of the
encoder zone 1 is empty or incorrect.
The data such as the phase of the
encoder zone 2 is empty or incorrect.
The information about the Motor
version in the encoder is incorrect.
The difference between two reference
position values is too large in IP mode
or CSP mode.
Check if the position
trajectory planning of
the master station is
correct.
There is an error in DC
synchronization operation.
Check if the DC setting
value of the master
station is incorrect.
SM Event Sync
Error (The event
arrived too early)
The synchronization operation of SM
Event was too early.
Check the setting of the
master station.
SM Event Sync
Error (The event
overtime)
The synchronization operation of SM
Event was overtime.
Check the setting of the
master station.
An internal error occurred in the
EtherCAT processor.
Repower up the system,
or else, contact ESTUN
or the Authorized
Distributor.
Cycle Time Error
in Cubic
interpolation
algorithm
An algorithm cycle error is detected by
the Cubic interpolation algorithm,
which is equal to the DC
synchronization period.
Check if the setting of
DC synchronization
period is proper and it
shall not be 0.