Overload - gefran ADV200-HC Instruction Manual

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26.06.12 11218

26.07 OVERLOAD

This function protects the hoist system if you try to handle a load that exceeds system capacity, which would
damage the mechanism.
To determine if a load is excessive, the system measures the current absorbed by the motor (inverter
configured in V/F mode) or the torque delivered by the motor (inverter configured in Flux Vector Close Loop
or Flux Vector Open Loop mode).
The load is measured after the drive has received the Start (FW or REV) command and the "delay to start
OL" time has elapsed.
Two thresholds, OL1 and OL2 Load thr, are available, settable in % of motor current / torque. Exceeding
each threshold for a time set in "OL1 time" and "OL2 time" causes a user-settable action.
ADV200-HC Manual
Description
Mass[kg]*9.81*linear speed of load [m/s]
It refers to motor power.
This parameter refers to the descent, where the load impedes braking and tends to drag the
motor. The set default value refers to a lift system where at nominal load 50% of motor
torque is used to support the load and 50% for acceleration.
Pwr up gain
POWER UP
This parameter decreases acceleration when absorbed power approaches the set power limit
(up or down). The lower the value, the earlier the motor deceleration zone begins.
Values that are too high delay engagement of the function and cause a more sudden action.
Values that are too low cause the function to engage too early and prevent reaching of the
target power.
UM Type Def
* FLOAT 0.01
Min Max ACCESS
0 10000 R/W
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