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6.3 Test Run Without Load
Electrical connections
Check the cableways for electrical wiring. Make sure that wires do
not snag on structures when the hoist is moving.
Check that the rated voltages correspond to the main voltage.
Check that the power supply to the hoist is protected with fuses of
the correct size. Check that the phase sequence is correct.
The voltages and frequencies marked on the data plate of motors
driven by inverter can deviate from the values on the data plate for
the hoist.
Check possible fault messages from hoist control device and
inverters (not in all models).
Controller
Check that the controller is correctly installed and in good
condition. The controller shall not cause any disturbance for other
controllers. Check the functionality of push buttons, joysticks and
switches.
Check that all motions occur to the correct direction. Make sure that
desired functions occur when operating the push button, joystick or
switch. Check that the hook movement corresponds to the control
direction.
Check that the hook moves in correct direction by pressing first the UP
direction button (though the hook is near the upper limit).
Emergency stop button
Check the operation and condition of the emergency stop button.
Only use the emergency stop button to stop movement in the event of
product malfunction or other emergency situations. Using the
emergency stop button can cause the load to swing unexpectedly.
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