IPE300 series engineering VFD Troubleshooting
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Motor parameter is set
improperly;
The parameters gained from
autotuning deviate sharply
from the standard parameters;
Autotuning timeout.
carry out autotuning again;
Check the motor wiring and
parameter setup;
Check whether the upper
limit frequency is larger than
2/3 of the rated frequency.
Error in reading or writing
control parameters;
EEPROM is damaged.
Press STOP/RST to reset;
Replace the main control
board.
PID feedback offline
fault
PID feedback offline;
PID feedback source
disappears.
Check PID feedback signal
wires;
Check PID feedback
source.
Fault occurred to the brake
circuit or the braking pipe is
damaged;
Resistance of the external
braking resistor is small.
Check the braking unit, and
replace with new braking
pipe;
Increase the brake
resistance.
The actual running time is
longer than the set time.
Ask the supplier to adjust
the preset running time.
Electronic overload
fault
The VFD releases overload
pre-alarm based on the set
value.
Check the load and
overload pre-alarm
threshold
Keypad
communication fault
Keypad cable connected
improperly or disconnected
Keypad cable too long,
causing strong interference
Keypad or mainboard
communication circuit error
Check the keypad cable to
determine whether a fault
occurs.
Check for and remove the
external interference
source.
Replace the hardware and
seek maintenance services.
Keypad cable connected
improperly or disconnected
Keypad cable too long,
causing strong interference
Keypad or mainboard
communication circuit error
Check for and remove the
external interference
source.
Replace the hardware and
seek maintenance services.
Replace the hardware and
seek maintenance services.