S-Shaped Ramp Function Generator Characteristic - Lenze 4800 Manual

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Configuration
7.6.4
Code Code Name Name
C012 Acceleration
time T
main
set-value
C013 Deceleration
time T
main
set-value
C131* Ramp
function
generator
STOP
C132* Ramp
function
generator
input = 0
C134* Ramp
function
generator
characteristic
C182* T time of the
i
s-shaped
ramp function
generator
7.6.5
7-94
48XX/49XXSHB0399

S-shaped ramp function generator characteristic

For the ramp generator of the main set-value you can select two different
characteristics under C134:
( linear characteristic for all accelerations which require a constant
acceleration
( S-shaped characteristic for all accelerations which require a shock-free
acceleration.
Possible settings
Lenze Selection
0.00s 0.00 s
for
1 s
ir
10 s
100 s
0.00s 0.00 s
for
1 s
if
10 s
100 s
0 -0- Enable ramp function generator
-1- Stop ramp function generator
0 -0- Enable mains setpoint at RFG input
-1- Ramp function generator input = 0
0 -0- Linear characteristic
-1- S-shaped characteristic
20.0 s 0.01 s
1s
10s
Depending on the operating mode, the functions RFG stop (C131) and ramp
function generator input = 0 (C132)can be controlled and used for other switching
via the keypad, LECOM interface or freely assignable digital input terminals.
Note!
With setting controller inhibit, the signal at the RFG output jumps to the value = 0.
If the controller is enabled again, the set-value at the RFG output accelerates from
the actual speed to the speed set-value.
Actual speed filter
The actual speed circuit is equipped with a PT1 filter which is activated under
C198. The filter can be used to reduce mechanical resonances. The filter should
only be used in configurations without superimposed phase control circuits.
(C254=0).
{0.01 s} 1 s
{0.1 s} 10 s
{1 s} 100 s
{10 s} 990 s
{0.01 s} 1 s
{0.1 s} 10 s
{1 s} 100 s
{10 s} 990 s
{0.01 s} 1 s
{0.1s} 10s
{1s} 50s
Info
Time refers to 0...n
max
Time refers to 0...n
max
If ramp function generator STOP (main
setpoint) is enabled via terminal, C131 is
for display only.
T time for the S-shape ramp function
i
generator of the main set-value