Lenze L-force 8400 BaseLine D User Manual

Firmware 03.00 - DMS EN 5.0 - 07/2009 L 149
8400 BaseLine D | Software Manual
Function library
Function blocks
9.1.1.4 Ramp function generator for the main setpoint
Afterwards, the setpoint is led via a ramp function generator with linear characteristic. The
ramp function generator transfers setpoint step-changes at the input to a ramp.
[9.1] Acceleration and deceleration times
9.1.1.5 S-shaped ramp
A PT1 element is connected downstream of the linear ramp function generator. This
arrangement implements an S-shaped ramp for a nearly jerk-free acceleration and
deceleration.
 The PT1 element is switched off/on using bSShapeActive.
 The time constant is set using nTiSShaped.
w1, w2 = change of the main setpoint as a function of t
ir
or t
if
RFG-OUT = output of the ramp function generator
RFG-OUT
100 %
w2
w1
t
0%
t
ir
t
ir
T
ir
T
ir
T
ir
t
ir
100 %
w2 w1–
----------------------
⋅= T
if
t
if
100 %
w2 w1–
----------------------
⋅=

Lenze L-force 8400 BaseLine D Specifications

General

Brand	Lenze
Model	L-force 8400 BaseLine D
Category	Inverter Drive
Language	English