Hitachi P1

Page 16
SETTING HOIST OVER-WEIGHT
Each hoist’s over-
the step chart below to set the hoist’s over-weight settings.
NOTE – If you are setting the alternative over-weight parameters use steps 6A and 7A
Step
Instruction
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
block.
3
On the hoist VFD’s display there will be an output current monitor. If the display does not show an output current
monitor go to parameter dA-02 to monitor the output current to the motor.
4
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

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
STANDARD
over-weight (1) parameter CE106 to that value.
6A
Take the value from step 4 and multiply it by 1.05 and set
ALTERNATIVE
over-weight (1) parameter CE102 to that
value.
7
Take the value from step 5 and multiply it by 1.05 and set
STANDARD
over-weight (2) parameter CE107 to that value.
7A
Take the value from step 5 and multiply it by 1.05 and set
ALTERNATIVE
over-weight (2) parameter CE103 to that
value.
8
Locate the terminal knife disconnect labeled “BPS” and close the tab.
9

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.