Description of Fault Codes
‑91‑
Cause
Confirming Method
Solution
1) During synchronous
communication, the slave
performs abnormally in
terms of receiving.
1. Check whether the
shielded twisted pair
cable is used as the
communication cable.
2. Check whether the servo
drive is well grounded.
3. Check the Ethernet port of
the servo drive is
damaged.
1. Use the shielded twisted
pair cable.
2. Connect the cable
according to the wiring
instructions.
3. Check the network
connection status
through the first LED on
the left.
2) During synchronous
communication, the master
performs abnormally in
terms of transmitting.
1. The synchronous clock of
the host controller is not
activated.
2. Excessive error occurs on
the synchronization clock
of the host controller.
Measure the synchronization
cycle through an actual
oscilloscope or the
oscilloscope tool in the
Inovance servo
commissioning software. If
the synchronization cycle is
0, the host controller
synchronous clock is not
activated. In this case, check
whether the network cables
connected to each slave
come in from the IN port
and out from the OUT port.
If yes, restart the network. If
the network cables are
connected in the correct
sequence, without the need
for prior check, restart the
network directly. If the
synchronization period is
not 0 and within the
permissible fluctuation
range (2 us) of the servo
drive, increase the
synchronization loss
threshold of the slave
(H0E.32).
3. The network switches
from OP to non‑OP when the
servo drive is enabled.
Check whether the network
status switches from OP to
non‑OP.
Check the network status
switchover program of the
host controller.
● EE08.3: Link is missing
To Next Page
Loading...
