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3 Functional description of the structure switches
3.4 Controller types (S1, S42 to S45)
D Display of the external setpoint w
With the Shift key (6) the digital x/w-display can be switched between the display levels I to
IV depending on the position of S81.
In display level II the active w can be displayed, in display level III the main control variable
x1. The external setpoint w
setpoint can also be adjusted (see table 3-3).
The active setpoint- and actual value are displayed on the analog displays.
Structure
Posi-
switches
tion
S81
[0]
1
2
3
4
5
6
7
Table 3-3
Display levels (S81)
D Operation with 2 or 3 setpoints
If tracking of the inactive setpoint to the active setpoint is blocked with S45 = 1, a multiple
setpoint operation (switching between wi, w
and table 3-5, page 66.
D Controlled variable processing
A 2-component control is implemented (disturbance variable connection). With factors c1
and c3 the main controlled variable x1 can connect the auxiliary controlled variable x2 with
weighting.
64
E
is displayed in display level IV. The displayed active or inactive
E
Switching the w/x-digital display
Display order
I
II
x/xv
w/wv
x/xv
w/wv
x1/xv
x/xv
w/wi1/wv
x/xv
w/wi1/wv
x1/xv
x/xv
--
--
w/wv
--
--
x1/xv
xv
wv
x1
Identification of the displayed variables by the w- or x-signal lamp:
1 = steady light, 0.5 = flashing light, 0 = off
Display order
I
II
1
0
0.5 (0 at S81=6)
0
1
Function
III
IV
--
--
--
--
wE/wvE/wi2
wE/wvE/wi2
--
--
--
--
--
w
III
IV
0
0
0,5
and SH is achieved (see table 3-4, page 65)
E
Manual
x-signal lamp
w-signal lamp
SIPART DR21
C73000-B7476-C143-08
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