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Functional Safety HiC283*
Operation
Proof Test Procedure
1.
Prepare a test set-up, see figures below.
2.
Test the devices in the mode of operation they are used in. If necessary,
change the configuration of the device. Verify the input and output values as given
in table below.
3.
Test each input channel individually.
4.
Simulate the sensor state by a potentiometer of 4.7 k
. The threshold must be between
1.4 mA and 1.9 mA. The hysteresis must be between 150
A and 250
A.
For normal mode of operation the outputs must have a low impedance, if the input current
is above the threshold. This state is indicated by yellow LED.
For inverse mode of operation the outputs must have a low impedance, if the input current
is below the threshold. This state is indicated by yellow LED.
5.
Simulate the sensor state by a resistor R
SC
(220
, short circuit detection) or a resistor R
LB
(150 k
, lead breakage detection).
The device must detect an external fault. This state is indicated by red LED and the output
of the corresponding channel must be in fault state.
6.
Test the outputs with a certain current. Test that the outputs are definitely high impedant
(see table, I
off
), if the yellow LED is off.
7.
Set back the device to the original settings after the test.
8.
Secure the DIP switches to prevent unintentional adjustments.
Device
R
U
I
on
(mA)
I
off
(mA)
I
fault
(mA)
HiC283*
1 k
8 V
2.6 mA < I
on
< 3.2 mA
0.5 mA < I
off
< 0.6 mA
I
fault
< 0.05 mA
HiC283*R1
2 k
24 V
8.0 mA < I
on
< 9.2 mA
0.46 mA < I
off
< 0.62 mA I
fault
< 0.05 mA
HiC283*R2
250
24 V
4.2 mA < I
on
< 4.6 mA
1.48 mA < I
off
< 1.62 mA I
fault
< 0.05 mA
HiC283*R3
4.3 k
24 V
4.9 mA < I
on
< 5.2 mA
1.01 mA < I
off
< 1.06 mA I
fault
< 0.05 mA
HiC283*R5
250
24 V
2.54 mA < I
on
< 2.76 mA 0.5 mA < I
off
< 0.55 mA I
fault
< 0.05 mA
Table 5.1 Input and output values for HiC28*1, HiC283R2, HiC283*R3 and HiC283*R5
Device
I
U
on
(V)
U
off
(V)
I
fault
(mA)
HiC283*R4
10.0 mA
4.58 V < U
on
< 4.85 V
13.3 V < U
off
< 14.35 V
I
fault
< 0.05 mA
Table 5.2 Input and output values for HiC283*R4