EM330D User Manual
A Special Purpose Inverter for Hoisting
92
loose.
Ol
Overload/Stall
time is too long
1. Acceleration/deceleration time is too short.
2. In V/F drive mode, the setting value of
torque boost is too big.
3. Load is too heavy.
4. It is in stall status for a long time.
1.Prolong
acceleration/deceleration time.
2.Reduce setting value of torque
boost.
3.Replace with the inverter which
is applicable to the load.
4.
Check whether motor is on
other load so that it cannot
stop.
OH
Heatsink
Overheat
1. Ambient temperature is too high.
2. Poor ventilation.
3. Cooling fans are broken down.
1.The service environment of
inverter should meet requirement.
2.Improve environmental
ventilation, and check if the vent
of inverter` is blocked.
3.Replace air cooling fan.
EHT
External Fault
1. External device fault terminal acts.
1.Check external device.
INP
Internal Fault
1.The operation time of system is up.
1.Contact distributors.
EED
Inverter
EEPROM
Failure
1.Interference makes EEPROM read-write
mistakes.
1.EEPROM is damaged.
1.Press STOP/RESET button to
reset, and then retry.
2.Technical support required.
EEU
Keypad
EEPROM
Failure
STP
Autotuning
Cancelled
1.
During autotuning, press STOP/RESET
button.
2.
Brake is disengaged.
1.Press STOP/RESET button to
reset.
2. Adjust brake, and then check
it.
SFE
Autotunig
Coast-to-stop
1.When FRS=ON, the external terminal is
off during autotuning.
1.Press STOP/RESET button to
reset.
SrE
Stator Resistance
Error
1.Motor is not connected to the output
terminals of inverter.
2. Motor is on load.
3. Motor fails.
1.Check connection between
inverter and motor.
2.Motor is offloaded.
3.Check motor.
SIE
Idling Current
Error
EST
External Wire
Broken
When FDT output signal is enabled,
FC-31setting time is up, if terminal Xi=81
does not receive brake release signal,
inverter trips EST.
Check brake release feedback
circuit.
OlP
Output Phase
Loss
1. The motor is not connected to the output
terminal of inverter.
2. Motor vibrates severely, and 3-phase
1. Check connection between
inverter and motor.
2. Check if the motor is damaged.
