Siemens SIPART DR22 User Manual

Manual
1 Technical Description
1.5 Functional Description
1.5.8 Complex Functions (Arithmetic blocks c, d, h)
SIP ART DR24 6DR2410
C79000-G7476-C153-03
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D S--controllers with internal positioning feedback CSi1, CSi2, CSi3, CSi4
D S--controllers with external positioning feedback CSE1, CSE2, CSE3, CSE4
D Adaptation
D Adaptation of the S--controller to the actuating drive
D Automatic setting of the control parameters by the adaptation procedure
D Manual setting of the control parameters without knowing how the system will react
D Manual setting of the control parameters after the transient function
D Functional explanation of the digital control signals and inputs
P P-operation controller (h*.07)
The Pi--controller is switched to P--operation with this signal.
H Manual (h*.08)
This signals blocks the output of the controller and enables direct manual adjustment of
the manipulated variable through the front operating mode with the appropriate wiring for
example.
N Tracking
With this signal the output of the K--controller and the three--position step controller with
external position feedback is tracked to the tracking signal y
N
.
Δy Incremental manipulated variable adjustment (h*.09, h*.10)
External manipulated variable default for incremental adjustment through digital inputs
in tracking operation.
yBL Direction--dependent blocking of the manipulated variable (h*.11, h*.12)
Direction--dependent limiting of the manipulated variable by external signals, e.g. of the
limit switches of the actuating drives. This limiting is effective in every operating mode.
- Priority of the control signals Bl, N, H
Blocking has priority over tracking; tracking has priority over manual.
This definition can be changed by external wiring with arithmetic blocks.
D Control algorithm
- P-controller (control signal P = Hi)
ya = yp + yo + yz
ya = +kp ⋅ xd
p
+yo+yz
Frequency response:
ya
xd
= kp
- PI-controller
ya = yp + y
I
(t) + yo + yz
yI (t) + yo =
kp
Tn

t
0
xd
I
dt + y
I
t=0
ya = kp xd
p
+
kp
Tn

t
0
xd
I
dt + y
I
+ yz
t=0

Siemens SIPART DR22 Specifications

General

Brand	Siemens
Model	SIPART DR22
Category	Controller
Language	English