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SETTING HOIST OVER-WEIGHT
Each hoist’s over-weight settings will be set at the factory prior to shipment. In some cases, field adjustments may be required. Use
the step chart below to set the hoist’s over-weight settings.
1
Locate the terminal knife disconnect labeled “BPS” and pull the top of the yellow/orange tab outwards, this will
bypass the over-weight circuit.
2 Attach the 100% rated load to the hook block.
3
On the VFD navigate to the output current monitor d002 by pressing the ESC button once and using the UP button to
navigate to d002 and press the SET button to view the current monitor.
4
Proceed to lift the 100% rated load off the ground in low speed. Monitor the output current to the motor and write
it down. Be sure to wait for the output current to normalize
5
Proceed to lift the 100% rated load off the ground in high speed. Monitor the output current to the motor and write
it down. Be sure to wait for the output current to normalize.
6 Take the value from step 4 and multiply it by 1.05 and set over-weight (1) parameter C041 to that value.
7 Take the value from step 5 and multiply it by 1.05 and set over-weight (2) parameter C111 to that value.
8 Locate the terminal knife disconnect labeled “BPS” and close the tab.
9
Operate the hoist in low and high speed with the 100% rated load.
If the over-weight circuit trips in low speed, then increase the value of over-weight (1) parameter until it no longer
trips.
If the over-weight circuit trips in high speed, then increase the value of over-weight (2) parameter until it no longer
trips.
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