Controls and displays
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1 Analog indication of actual value x
2 Analog indication of setpoint w
3 w/x digital display (other values can be displayed)
4 Signalling lamp w -- lights up if w is displayed
5 Signalling lamp x -- lights up if x is displayed
6 Selector pushbutton for w/x digital display,
acknowledgement pushbutton for flashing following return
of power or pushbutton for entering selection mode
7 Pushbutton for adjustment of manipulated variable --
closed (open)
8 Pushbutton for adjustment of manipulated variable --
open (closed)
9 y digital display
10 Signalling lamps of Δy digital outputs with S controller
11 Switchover pushbutton Manual/Automatic or “Enter” pushbutton
from selection mode of configuring mode
12 Signalling lamp for manual mode
13 Signalling lamp for y--external mode
Modification of setpoint 14 Pushbutton for falling setpoint
15 Pushbutton for rising setpoint
16 Selector pushbutton for internal/external setpoint or “”Exit’”
pushbutton from configuring and selection modes to process
operation mode
17 Signalling lamp for internal setpoint
18 Signalling lamp for computer switched off (with w
ext
)
Further messages 19 Signalling lamp for adaptation procedure running
20 Signalling lamp for “Limit triggered”
. Note Operation can be blocked using the digital signal bLb;
exception: switching over o w/x digital display.
Display of actual value
and setpoint
Modification of
manipulated variable
SIPART DR21
C73000-B7476-C143-08
5
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