GMBHR168 Datasheet, PDF (31/70 Pages) List of Unclassifed Manufacturers – Mini BLOCK Housing 16 opto inputs, 8 Relay outputs

ITALIAN TECHNOLOGY
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Input lines are optocoupled and provided with low-pass filter; this warrants a grade of protection for
internal electronics against external noise.
Each line features a LED for visual signalation that turns ON whenever voltage +Vopto is connected
between input pin and common pin, regardless polarity of connection.
This makes input lines suitable both for PNP and NPN drivers.
CN1,
CN2
8 NPN, PNP
input lines
PIN 1÷8
IN n
COMMON
PIN 9
NPN or PNP
SELECTOR
(Jumpers J1, J2)
VOLTAGE
RECTIFIER
+Vopto,
Vac opto
GND opto,
Vac opto
PIN 2
CN5
PIN 1
FIGURE 18: OPTOCOUPLED INPUTS BLOCK DIAGRAM
Supply voltage for optocouplers (+Vopto) is generated on board starting from the external supply
voltage provided on connector CN5, so to close an input it is enough to connect it to its common pin.
+Vopto is available also on CN6.
The above mentioned external voltage must be compiant to the requirements written in paragraph
“ELECTRIC FEATURES”.
GMB HR168 Rel. 5.00
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