Balluff BOD 26K LB04-S115-C Instructions De Service Et De Montage page 55

Mounting and
operating instructions
No. Action Picture
follows
19 „Autom. centre" function (with Q
Q Q
1
OK
I
C FA
push
18x
No. 834826 E Edition 1310; Replaces edition 1111; Subject to modification
Action Reaction / Status indicator „ZA" (red)
as control input):
1
Switch with ON, if autom. centre active
2
OFF, if autom. centre inactive
SET
The output characteristics (4 ... 20 mA) are displaced with this function. When the automa-
tic centre function is activated and Q
the output value of 12 mA. The incline of the characteristic curve is maintained. The min.
or max. value of the characteristics are limited by the measuring range.
The distance to the object must be within the measuring range.
20 mA
12 mA
4 mA
+U
Q
1
-U
20 mA
12 mA
4 mA
= +U , the current measured value is equated with
1 B
Analogue signal
B
B
80 120
190
Factory setting
Inactive
(„ZA" = OFF)
t(s)
Autom. centre at 120 mm
300 mm
Illustr. 15
15500146
Illustr. 16
15500859
55