Description of Fault Codes
‑89‑
Cause
Confirming Method
Solution
The data is lost due to EMC
interference, poor quality of
the network cable or
improper connection.
Check whether the high 16
bits of H0E‑25 have values
that are increased.
● Check whether the servo
drive is grounded properly
and rectify the EMC
problem.
● Check whether the
network cable used is the
one designated by
Inovance.
● Check whether the
network cable is connected
properly.
● EE08.5: Data frame transfer error
Cause:
The upstream slave detects that the data frame has been corrupted and marked,
which is then transferred to the downstream slave, leading to a warning event.
Cause
Confirming Method
Solution
The upstream station
detects that the data frame
has been corrupted and
marked, which is then
transfered to the slave,
leading to a warning report.
Check whether a processing
unit error occurs due to
transfer error (H0E.27) or
invalid frames (H0E.28) upon
occurrence of the fault, and
check whether no counting
is performed in RX‑ERR of
Port0.
Check the upstream slave to
locate the fault cause.
● EE08.6: Data update timeout
Cause:
The slave is in the OP status and does not receive the data frame in a long time.
Cause
Confirming Method
Solution
The data frame is lost or
aborted in the upstream
slave or the master
performance is not up to
standard.
Check through the software
tool whether the phase
difference between SYNC
and IRQ exceeds the value of
H0E.22 multiplied by the
communication period.
● Check whether the
operating load of the
master CPU is excessive.
Increase the
communication time or set
H0E‑22 to a larger value.
● Check whether link loss
occurs on the upstream
slave.
● EE09.0: Software position limit setting error
Cause:
The lower limit of the software limit is equal to or larger than the upper limit.
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