H3 salient features variable frequency drive: Virtual IO input and output flexibility to achieve a variety of simple logic functions. After the motor overheating protection increase the expansion card, the drive motor temperature sensor signal acceptable to achieve the motor from overheating. Quick limiting the drive to avoid over-current protection frequently. Multi-motor switch has two sets of motor parameters, enabling two motors switching control. Restore user parameters This function supports customer self-preservation or restoration own set of parameters. More high-precision analog inputs and outputs through the factory calibration (also field calibration), accuracy to within 20mv. Customized parameter displays user-customizable function parameters to be displayed. Users can change the parameter to display the user view a function parameter modifications. Fault handling options the user can be determined after a specific failure, the operation mode of the inverter: freewheel stop, slow down, continue to operate, can also choose the frequency continues to run. PID parameter switching has two sets of PID parameters can be switched or changed according to the deviation through the terminal. PID feedback loss detection setting value PID feedback loss detection, protection for the PID runtime. Digital input and output latency delay time users set their own input and output response. Instantaneous stop non-stop to ensure that the inverter maintains the short drive to continue running when momentary power failure or a sudden drop in voltage. Timed Run support up to 6500 minutes timed run.