Se�Ng Hoist Over-Weight - Hitachi P1 Basic Instruction Manual

SE T TI N G H OI S T OVE R- W E IG HT
(Step 1) - On the Hoist VFD home screen displays the output current to the motor.
(Step 2) - Locate the over-weight bypass switch located on the control panel (BPS) and open it. This will ignore any over-
weight signal given by the hoist VFD to the over-weight circuit.
(Step 3) - Li� 100% of the rated capacity in 1st speed and wait for the output current to become stable, note that value
and add 2%.
(Step 4) - Li� 100% of the rated load in 2nd speed and wait for the output current to become stable, note that value and
add 2%.
(Step 5) - On the Hoist VFD navigate to parameter CE106 which is the over-weight current se�ng for low speed and set the
value to the value determined in step 3.
(Step 6) - On the Hoist VFD navigate to parameter CE107 which is the over-weight current se�ng for high speed and set
the value to the value determined in step 4.
(Step 7) - Verify li�ing 100% of the rated capacity in 1st and 2nd speed does not create an over-weight condi�on.
(Step 8) - If the over-weight trips you will need to determine if the trip is in low or high speed and increment the value in
the corresponding over-weight se�ng parameters. If the over-weight trips due to inrush current increment
parameter CC-20 to delay the over-weight output signal.
(Step 9) - A�er the over-weight se�ng have been successfully set close the over-weight bypass switch located on the
control panel (BPS).
Low Speed Over-Weight
High Speed Over-Weight
12/17/2018 Hitachi P1 Closed Loop Hoist Basic Instruc�on Manual Firmware V19 – V25
Over-Weight VFD Parameters
CE106
CE107
8