Title: Operating instructions - K3G500PB3301.pdf
WARNING Hot motor housing Risk of fire→ Ensure that no combustible or flammable materials arelocated close to the fan.; Before switching on, check the device for visible external damageand make sure the protective devices are functional.; Check the fan's air flow paths for foreign matter and remove anyforeign matter found.; Apply the nominal supply voltage.; Start the device by changing the input signal.The integrated protective functions cause the motor to switch off automatically in the event of the faults described in the table.FaultRotor position detection error Blocked rotorLine undervoltage (line voltage outside of permitted nominal voltage range) Phase failure