Technical summary
General description
This device is used to test, drive and diagnose fans or electric motors without mounting them on their original appliance.
Several connectors: to connect different types of motors/fans (3-wire, 4-wire, etc.).
Power supply: presence of high voltage (310V), professional use.
On / off switch (red button).
Speed adjustment knob (blue, « 调速 » = speed adjustment)
Digital display: shows the fan's rotation speed or feedback frequency (RPM / Hz).
Indicator lights: show the operating status.
Main use
This enclosure is used to:
Test air conditioner fans
Check speed control
Check the feedback signal (FG / tachometer)
Detect motor faults
