Goodrive300-01A-RT series integrated machine Fault handling and product maintenance
-91-
PID feedback
offline fault
• PID feedback offline.
• PID feedback source
disappears.
• Check PID feedback signal wire.
• Check PID feedback source.
The actual running time of the
VFD is larger than the internally
set time.
• Ask supplier for help.
• Adjust the set running time.
Electronic
overload fault
The VFD reports overload
pre-alarm according to the set
value.
Check the load and overload
pre-alarm threshold.
Keypad
communication
fault
• The keypad wire is poorly
contacted or disconnected.
• The keypad wire is too long
and suffers strong
interference.
• Circuit fault occurred to the
keypad or communication
part of the main board.
• Check the keypad wires to
confirm whether fault exists.
• Check the surroundings to rule
out interference source.
• Replace the hardware and ask
for maintenance service.
• The keypad wire is poorly
contacted or disconnected.
• The keypad wire is too long
and suffers strong
interference.
• Circuit fault occurred to the
keypad or communication
part of the main board.
• Check the surroundings to rule
out interference source.
• Replace the hardware and ask
for maintenance service.
• The keypad wire is poorly
contacted or disconnected.
• The keypad wire is too long
and suffers strong
interference.
• Data storage error occurred
to the keypad.
• Check the surroundings to rule
out interference source.
• Replace the hardware and ask
for maintenance service.
• Re-backup keypad data.
To-ground
short-circuit fault
1
• VFD output is short circuited
to ground.
• Current detection circuit is
• Check whether motor wiring is
normal/motor is short circuited
to ground.