Function block library
7-212

SHB9300CRV EN 2.0
7.6.69 S-shaped ramp generator (SRFG)
Purpose
The function block is used to evaluate a setpoint via an S-shape (sin
2
shape).
C1040
C1041
C1045/1
SRFG1
SRFG1-OUT
SRFG1-IN
C1045/2
1
0
SRFG1-SET
C1046
SRFG1-LOAD
C1042
C1043
C1044
SRFG1-DIFF
Fig. 7-174 S-shaped ramp generator (SRFG1)
Signal
Source Note
Name Type DIS DIS format CFG List
SRFG1-IN a C1045/1 dec [%] C1042 1 Input
SRFG1-SET a C1045/2 dec [%] C1043 1 Start value for the ramp generator, acceptance when
SRFG1-LOAD = High
SRFG1-LOAD d C1046 bin C0144 2 HIGH = accepts the value at SRFG1-SET and supplies it
toSRFG1-OUT; SRFG1-DIFF remains at 0 %
SRFG1-OUT a - - - - Output limited to
îš–
100 %
SRFG1-DIFF a - - - - Output limited to
îš–
100 %, supplies the acceleration of
the ramp generator
SRFG1-LOAD
l
The ramp generator is loaded (set) with the signal of SRFG1-SET via the digital input
SRFG1-LOAD.
l
This value is immediately accepted, i.e. there is no S-shaped acceleration or deceleration (the
output jumps to this value).
l
As long as SRFG-LOAD = HIGH, the ramp generator remains inhibited.
Function
The maximum acceleration and the jolt can be adjusted separately.
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