INVT Goodrive350-19 Series Operation Manual page 364

Goodrive350-19 series VFD for crane
Function
Name
code
Delay when
rope-tracking
P91.57
frequency
reached
Rope-tracking
P91.58
torque
Description
enabled, if the set frequency is lower than the
rope tracking frequency, the VFD boosts to the
rope tracking frequency after startup and takes a
delay later. When the delay is reached, the VFD
calculates the output torque. If the output
frequency is greater than the preset torque
(empty-load torque usually), the VFD considers
the rope is too tight. Then the frequency is
decreased to the set frequency.
Running
command
Output
frequency
P91.56
Set
frequency
P91.57
Output
torque
P91.58
Note: This function is mainly applicable to crane
trolleys.
-352-
Function parameter list
Default Modify
○
1.000s
○
40.0%