Commissioning and Trial Run
‑136‑
Fault Name Panel
Display
Possible Cause Solution Fault Type
Communication fault E16.01 Modbus communication
times out.
Check whether the Modbus master sends
data within the set timeout period.
Check whether the RS485 circuit is
disconnected or suffers interference.
Axis fault
A16.02 The protective cover for
the connector is not
installed.
Install the protective cover on the connector
of the rightmost drive unit.
Axis fault
E16.03 The station number
assignment failed.
Power on all equipment. If the fault persists,
replace the AC drive.
Axis fault
E16.04 Continuous frame loss
occurs on the expansion
card.
Ensure that the expansion cards are
connected properly.
Check whether F9‑67 (Threshold of
continuous I/O frame loss times) is too
small.
Axis fault
E16.11 CANopen
communication times
out.
EtherCAT is disconnected. Check that CAN
communication cable is connected
normally.
Check parameters FD‑15 (Maximum value of
node receive error counter) to FD‑17 (Bus
disconnection times per unit of time) to
confirm the interference situation. If any
interference exists, eliminate it.
Axis fault
E16.12 The PDO mapping
configured by CANopen
is inconsistent with the
actual communication
mapping.
The EtherCAT mapping is inconsistent with
the PDO mapping. Check the PDO mapping
parameters in group AF to make sure that
the PDO configuration is correct.
Axis fault
E16.13 Data exchange from the
power supply unit to the
drive units times out.
Check whether the power supply unit works
normally. If the power supply unit is faulty,
contact the technical support personnel.
Axis fault
E16.14 Data exchange from the
power supply unit to the
drive units is abnormal.
The power supply unit is faulty. Contact the
technical support personnel.
Axis fault
E16.21 CANlink heartbeat times
out.
Check whether CAN communication cable is
correctly connected.
Check parameters FD‑15 (Maximum value of
node receive error counter) to FD‑17 (Bus
disconnection times per unit of time) to
confirm the interference situation. If any
interference exists, eliminate it.
Axis fault
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