INVT Goodrive350-19 Series Operation Manual page 368

Goodrive350-19 Series VFD for Crane
Fault
Fault type
code
[68] DeviceNet card
E-DEV communication
timeout fault
[69] CAN slave fault in
S-Err master/slave
synchronization
dIS [70] VFD disabled
[71] Contactor
tbE
feedback fault
[72] Brake feedback
FAE
[73] Torque verification
tPF
[74] Operating lever
StC
zero-position fault
[75] Low-speed run
LSP
protection fault
[76] Terminal
tCE
command exception
(or PLC).
No data transmission
between the communication
card and the host controller
(or PLC).
Fault occurred to one of the
CAN slave VFDs.
The input terminal selects
VFD enabling, but the
terminal signal is invalid.
The
circuit is disconnected or in
poor contact.
The contactor feedback
detection time is too short.
The brake feedback circuit is
disconnected
contact.
fault
The brake feedback
detection time is too short.
The torque verification
current, moment force
setting, and torque
fault
verification fault detection
time are set improperly.
The operating lever does not
return to the zero position.
The operating lever
zero-position signal is
adhered.
Running speed too low.
The terminal gives both the
upward and downward
commands at the same time.
Possible cause
contactor feedback
or in poor
-356-
Troubleshooting
Solution
Check whether the
communication card wiring is
loose or dropped.
Detect the CAN slave VFD and
analyze the corresponding fault
cause.
Check the input terminal setting
and terminal signal.
Check the contactor feedback
circuit.
Increase the detection time
P91.05 to a proper value.
Check the brake
circuit.
Increase the detection time
P90.32 to a proper value.
Check whether the torque
verification current and torque
settings are too small and
whether the detection time
P90.30 is too short.
Check whether the motor rated
power is set correctly.
Put the operating lever to the
zero position.
Check out the operating lever
zero-position signal.
Check whether the running
speed is continuously lower than
P92.03.
Check the input terminal signal.
feedback