PHF: 1. The power supply of the inverter is not right or the fuse is blown; 2. There is a transient problem in a certain phase. 1. Check the power connection and fuse; 2. Reset.
USF: 1. Power supply voltage undervoltage; 2. Instantaneous voltage drop; 3. The load resistor is damaged. 1 Check the power supply voltage; 2 Replace the load resistor.
OSF, OHF, OLF, ObF, OPF, LFF, OCF: the supply voltage is too high Check the supply voltage The heat sink temperature is too high Monitor the motor load; inverter ventilation; Wait for the inverter to cool down and then reset; Thermal maintenance tripping due to long overload time. 1 Check the thermal maintenance settings; Monitor motor load 2 Wait about 7 minutes before restarting Braking too fast or overloaded Extend the deceleration time, if necessary, add a braking resistor Output phase loss View
The 4 -2 0 mA signal of the AI2 port of the motor connection is lost: Look at the given circuit 1. The slope is too short; 2. The inertia is too large or the load is too heavy; 3. Mechanical card position. 1. Review the settings; 2. Check the motor/inverter/load capacity; 3. Check the condition of the mechanical part.
SCF C F: Short circuit or ground disconnect the inverter on the output side of the inverter. View the bridge resistance of the connecting cable and the motor insulated drive. 1. Fault with load relay control; 2. The load resistance is damaged, check the joints in the inverter as well as the load resistance.
SLF O F S F EEF InF: The inverter interface is incorrectly connected. Check the connection of the inverter interface, the motor overheating (PTC sensor), check the ventilation of the motor and the ambient temperature, check the type of sensor used, detect the load of the motor The connection between the sensor and the inverter is faulty, check the connection between the sensor and the inverter EEPROM memory fault, block the power supply of the inverter and reset. 1. Internal faults; 2. Interface Faults Check the interface of the inverter.
EPF SPF AnF: External linkage problem. Look at the faulty device and reset it, no speed response, and see the wiring and mechanical coupling of the speed sensor. 1. Don't follow the slope; 2. The speed is reversed to the set point. 1. Check the speed response settings and connection; 2. Check if the settings for a specific load are appropriate; 3. Look at the capacity of the motor-inverter, and whether a braking resistor is required.
SOF: 1. Unstable; 2. Heavy load. 1. View settings and parameters; 2. Add braking resistor; 3. Check the capacity of the motor/inverter/load.
CnF: Communication glitch in fieldbus. 1. Check the network connection of the inverter; 2. Check the timeout communication issues between the ILF palette and the dashboard Review the connection between the palette and the dashboard.
CFF: Faults that can arise after replacing the plates. 1. Nominal change of power board; 2. Changing the type of the palette, or installing the palette with the original no palette and the macro - equipped with CUS; 3. Removal of the option plate; 4. Inconsistent equipment cannot be saved. 1. Check the hardware equipment of the inverter (power or other); 2. Intercept the power supply of the inverter and reset; 3. Store the equipment in a file in the display module; 4. Press the ENT key twice to restore the factory settings (**When you press the ENT key twice, the following information will appear: Fact. Set? Is ENT/ESC a factory reset? ENT/ESC）
CFI: The equipment that is fed to the inverter through the serial port is inconsistent. 1. Check what equipment has been delivered; 2. Send an identical outfit.
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