Installation manual

Configuration Mode (ConF)
186 S1A28692 03/2010
HIGH SPEED HOISTING
This function can be used to optimize the cycle times for hoisting movements for zero or lightweight loads. It
authorizes operation at "constant power" in order to reach a speed greater than the rated speed without
exceeding the rated motor current.
The speed remains limited by the [High speed] (HSP) parameter page 75
.
The function acts on the speed reference pedestal and not on the reference itself.
Principle:
There are 2 possible operating modes:
• Speed reference mode: The maximum permissible speed is calculated by the drive during a speed step that
is set so that the drive can measure the load.
• Current limitation mode: The maximum permissible speed is the speed that supports current limitation in
motor mode, in the "ascending" direction only. For the "descending" direction, operation is in Speed
reference mode.
Frequency
High speed
HSP
Rated
motor
frequency FrS
Ascending
C
o
n
s
t
a
n
t
p
o
w
e
r
C
o
n
s
t
a
n
t
p
o
w
e
r
Descending
Tr: Rated
motor
torque
Torque
max.
Torque
High speed
HSP
Rated
motor
frequency FrS
0
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: [phone]-Outside Local Area: [phone]-www.stevenengineering.com