6-21
6.2.14 HiD 2877/2878
For these isolators, the input type (contact or logic level) is configurable. Two distinct check procedures are
therefore presented.
Contact or Open Collector input type:
a)
for HiD 2877, set the configuration switches as:
S1=ON, S2=ON, S3=OFF Ch.1
for HiD 2878, set the configuration switches as:
S1=ON, S2=ON, S3=OFF Ch.1, S1=ON, S2=ON, S3=OFF Ch.2
;
b)
connect the power supply at the termination board supply terminals; connect the first multimeter A1 (current
mode) at the input terminals; connect the second multimeter A2 (current mode), in series with the resistor box Rc,
at the output terminals; set the supply at 24 V and switch it on; the green power LED must go on;
c)
set the resistor box to 300
Ω
; the output current must be within 36 and 40 mA; the yellow status LED must be on
and the red fault LED must be off;
d)
set the resistor box to 0
Ω
(output short-circuit); both the yellow status and the red fault LED must be on.
e)
disconnect the resistor box (output open-circuit); both the yellow status and the red fault LED must be on.
f)
re-connect the resistor box at the output terminals and set it to 300
Ω
; the yellow status LED must be on and the
red fault LED must be off;
g)
disconnect the input multimeter A1 (input open); the output current must be within 3 and 5 mA; both the yellow
status and the red fault LED must be off;
h)
set the resistor box to 0
Ω
(output short-circuit); the yellow status LED must be off and the red fault LED must
be on.
i)
disconnect the resistor box (output open-circuit); the yellow status LED must be off and the red fault LED must
be on.
Summary of Contents for HiD 2000 Series
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