DRV-28 inverter
s Troubleshooting
-238-
Fault
code
Fault type
Possible cause
Corrective measures
timeout fault
communication card and the
host computer (or PLC)
loose or dropped
E-DEV
DeviceNET card
communication
timeout fault
There is no data
transmission between the
communication card and the
host computer (or PLC)
Check whether the
communication card wiring is
loose or dropped
ESCAN
Can master/slave
communication card
communication
timeout fault
There is no data
transmission between the
CAN master and slave
communication cards
Check whether the
communication card wiring is
loose or dropped
S-Err
Master-slave
synchronous CAN
slave fault
Fault occurred to one of the
CAN slave inverters
Detect the CAN slave inverter
and analyze the corresponding
fault cause of the inverter
7.5.2 Other state
Displayed code
State type
Possible cause
Solution
PoFF
System power
failure
The system is powered off or
the bus voltage is too low.
Check the grid
conditions.