2
02
1-
10
20
Functional Safety HiD282*, HiD284*
Operation
Figure 5.3 Proof test set-up with two relay outputs for HiD2822
This example shows the test of two relay outputs that repeat one NAMUR input.
The same test can be adopted to test the HiD2842 device if two transistor outputs are used
to repeat one NAMUR input.
HiD2822
Zone 0, 1, 2
Div. 1, 2
Zone 2
Div. 2
Termination Board
Multimeter
(mA)
Multimeter
( mA )
R
LB
R
SC
240
:
/2.5 W
24 V DC
Multimeter
(mA)
240
:
/2.5 W
24 V DC
SL2
SL1
+
-
8a
7a
8b
7b
10a
9a
9b
10b
11
14
17
18
12
15
13
16
5a
5b
+
-
1a
1b
1
4
2
5
+
-
+
-
+
-
+
-
I
supply
+
-
1a, 1b
2a, 2b
Multimeter
(mA)
24 V DC
Power
Supply
Tip
The easiest way to test HiD devices by using a stand-alone HiDTB**-SCT-***-**-**
termination board. In this test, it is not necessary to disconnect the wiring of the existing
application. Faults in a subsequent wiring can be avoided.
