INVT Goodrive350-19 Series Operation Manual page 372

Goodrive350-19 Series VFD for Crane
Alarm
Alarm type
code
[6] Brake failure
A-bS
[7] Brake feedback
A-FA
[8] Loose rope
A-SL
protection alarm
[9] PT100 detected
A-Ot1 overtemperature
[10] PT1000
detected
A-Ot2
overtemperature
[11] PT100
A-Pt1
disconnection alarm
[12] PT1000
A-Pt2
disconnection alarm
[13] PTC detected
A-Ptc overtemperature
A-AOt [14] AI detected
parameters are set improperly. Check whether the overload
The brake force is insufficient.
Abnormal encoder.
alarm Zero
parameters are set improperly.
The brake feedback circuit is
disconnected
contact.
alarm
The brake feedback detection
time is too short.
The hook rope is abnormal.
The downward loose rope
parameter setting is improper.
The ambient temperature is
too high.
PT100
alarm overtemperature alarm point is
set improperly.
The ambient temperature is
too high.
PT1000
overtemperature alarm point is
alarm
set improperly.
PT100 wiring circuit is opened. Check PT100 wiring circuit.
PT1000
opened.
The ambient temperature is
too high.
alarm
The ambient temperature is
Possible cause
servo detection
or in poor
detected
detected
wiring circuit
-360-
Solution
protection point is set too low.
Check whether the brake is
normal.
Check whether the encoder
works normally.
Check whether
tolerance pulse threshold is set
too small.
Check the brake
circuit.
Increase the detection
P90.32 to a proper value.
Check whether the hook rope is
normal.
Check whether the downward
loose rope detection torque is
proper.
Check the ambient temperature.
Check whether
detected overtemperature
protection point is set too small.
Check the ambient temperature.
Check whether the PT1000
detected overtemperature
protection point is set too small.
is
Check PT1000 wiring circuit.
Check the ambient temperature.
Check the temperature sensor
Troubleshooting
zero servo
feedback
time
the PT100