18 function library – Lenze 8400 User Manual
Page 1411
Lenze · 8400 protec HighLine · Reference manual · DMS 3.0 EN · 03/2013 · TD05
1411
18
Function library
18.1
Function blocks | L_SRFG_1
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Loading the ramp function generator
When bLoad is set to TRUE, the ramp function generator is loaded with the signal at nSet_a. This
value is accepted immediately and output at nOut_a. There is no acceleration or deceleration via an
S shape. As long as bLoad = TRUE, the ramp function generator remains inhibited.
Acceleration/Deceleration time and S-ramp time
The acceleration/deceleration time and the S-ramp time for jerk-free acceleration can be set
separately.
• Acceleration/Deceleration time = Time until the nOut_a output value has reached the nIn_a
input value.
• S-ramp time = Time until the ramp function generator operates at maximum acceleration.
[18-64] Signal flow
-199.99
s
199.99 Pos. limit
• Initialisation: 100.00 %
-199.99
s
199.99 Neg. limit
• Initialisation: -100.00 %
: Acceleration/Deceleration time
: S-ramp time
Parameter
Possible settings
Info
nIn_a
t
nOut_a
t
nDeltaOut_a
t
+100 %
-100 %