Setting Hoist Over-Weight - Hitachi WJ200 Instruction Manual

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.
Step
Locate the terminal knife disconnect labeled "BPS" and pull the top of the yellow/orange tab outwards, this will
1
bypass the over-weight circuit.
2
Attach the 100% rated load to the hook block.
On the VFD navigate to the output current monitor d002 by pressing the ESC button once and using the UP button to
3
navigate to d002 and press the SET button to view the current monitor.
Proceed to lift the 100% rated load off the ground in low speed. Monitor the output current to the motor and write
4
it down. Be sure to wait for the output current to normalize
Proceed to lift the 100% rated load off the ground in high speed. Monitor the output current to the motor and write
5
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.
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
9 trips.
If the over-weight circuit trips in high speed, then increase the value of over-weight (2) parameter until it no longer
trips.
Instruction
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