Functional Safety KFD0-CS-(Ex)*.50(P), KFD0-CS-(Ex)*.51(P)
Operation
20
21
-0
7
17
Proof Test for Load Resistor Connection
Proof Test Procedure
1.
Disconnect the field circuit.
2.
Connect a current supply. Supply the device with a voltage of 30 V.
3.
Connect a a load resistor of 700
. Set the current source to 20 mA.
The output current must be 20.0 mA
±
0.2 mA.
4.
Connect a a load resistor of 1 k
. Set the current source to 4 mA.
The output current must be 4.0 mA
±
0.2 mA.
5.
After the test, reset the device to the original settings.
6.
Connect the field circuit again.
7.
Check the correct behavior of the safety loop.
Figure 5.2 Proof test set-up for KFD0-CS-(Ex)*.5*(P)
Channel 2 only for KFD0-CS-(Ex)2.5*(P).
Usage in Zone 0, 1, 2/Div. 1, 2 only for Ex versions.
KFD0-CS-Ex2.5*(P)
Load
resistor
Load
resistor
Zone 2
Div. 2
Zone 0, 1, 2
Div. 1, 2
2-
1+
11+
12-
V
9+
10-
8-
5-
4+
I
II
mA
Multimeter
(mA )
mA
Multimeter
(mA )
V
