Description of Fault Codes
‑88‑
Cause:
The SYNC signal is turned off when the EtherCAT network is in the OP state.
Cause
Confirming Method
Solution
The SYNC signal is not
generated due to hardware
errors.
Check whether the SYNC
signal period is 0 using the
oscilloscope in the software
tool.
Replace the servo drive.
Contact Inovance for
maintenance.
● EE08.1: Network status switchover error
Cause:
When the servo drive is enabled, the EtherCAT network status switches from OP to
other status.
Cause
Confirming Method
Solution
This fault is caused by mal‑
operation of the master or
the operator.
Check whether the master
switches the network status
when the servo drive is
enabled.
Check the network status
switchover program of the
host controller.
● EE08.3: Network cable connected improperly
Cause:
The network cable of the servo drive is connected improperly. (The low 16 bits of
H0E.29 represents the number of IN port loss events. The high 16 bits of H0E.29
represents the number of OUT port loss events.)
Cause
Confirming Method
Solution
The physical connection of
the data link is unstable or
the process data is lost due
to plug‑in/ plug‑out of the
network cable.
Check: 1) whether the
network cable of the servo
drive is connected securely.
2) whether strong vibration
occurs on site. 3) whether
the network cable is plugged
in or out. 4) whether the
network cable provided by
Inovance is used.
Check the connection of the
network port through the
change of the H0E.29 value.
Use a new network cable
that can connect reliably.
● EE08.4 Data frame loss protection error
Cause:
PDO data is corrupted due to EMC interference or an inferior network cable.
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