2
02
1-
07
16
Functional Safety KFD0-CS-(Ex)*.50(P), KFD0-CS-(Ex)*.51(P)
Operation
Proof Test for Current Source Connection
Proof Test Procedure
1.
Disconnect the field circuit.
2.
Check the device as shown in the following table.
3.
After the test, reset the device to the original settings.
4.
Connect the field circuit again.
5.
Check the correct behavior of the safety loop.
Figure 5.1 Proof test set-up for KFD0-CS-(Ex)*.5*(P) for current source connection
Channel 2 only for KFD0-CS-(Ex)2.5*(P).
Usage in Zone 0, 1, 2/Div. 1, 2 only for Ex versions.
Set supply voltage
(V)
Set load current
(mA)
Measurement point
Input current (mA)
all devices
Output voltage (V)
.50 devices
Output voltage (V)
.51 devices
4.00
0.00
0.00
±
0.20
n.a.
4.00
±
1.00
10.00
0.00
0.00
±
0.20
9.00
±
1.00
10.00
±
1.00
35.00
4.00
4.00
±
0.20
20.50
±
1.00
20.56
±
1.00
10.00
20.00
20.00
±
0.20
1.60
±
1.00
2.60
±
1.00
35.00
20.00
20.00
±
0.20
14.80
±
1.00
14.80
±
1.00
20.00
40.00
40.00
±
0.20
n.a.
5.20
±
1.00
Table 5.1 Steps to be performed for the proof test
Note
For the polarity protected versions the measurement values never go below 0 V.
Where the output value is marked
n.a.
this test is not applicable, In that case the current
measurement is not applicable as well.
KFD0-CS-Ex2.5*(P)
Zone 2
Div. 2
Zone 0, 1, 2
Div. 1, 2
2-
1+
11+
12-
9+
10-
8-
5-
4+
I
II
mA
Multimeter
(V )
Multimeter
(mA )
Multimeter
(mA )
mA
Multimeter
(V )
V
V
