HW Group I/O Controller 2, Руководство пользователя, Страница: 8 / 44

I/O Controller 2 Manual HW group
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Digital Inputs & Outputs wiring
•
GND
– device ground.
•
PWR
– device power (max. 200 mA).
The device can be powered from barrel power connector (front panel) or from the I/O
connector PWR + GND pins (200 mA internal fuse = suitable only for testing purposes).
•
I.GND
– common ground for optocouplers.
•
I.0 to I.7 - 8 optocoupled inputs 5-20V
All 8 inputs are realized using common ground optocouplers (I.GND pin). The pins can then
be controlled using the contacts together with the POWER pin, which has the power adaptor
voltage (
connect I.GND with GND ).
Warning: The digital input voltage range is 5 -20V, but be careful for max total current thought
I.GND pin which is 200mA for all digital inputs (cca 25 mA per singe Digital Input).
•
O.COM (Common)
– Overvoltage output connected to the plus pole of the power source. This
can be useful when you want to control a relay from this output.
•
O.0 to O.7 - 8 open collector outputs, with common diode overvoltage protection.
The outputs a realized using 8 open collector transistors. Two outputs are internally connected
to a relay, which contacts are also led out to the device’s connector. The protecting diodes are
connected to the “common” pin, which should be connected to the plus pole of the next device
(for example a relay). This way the pins can be protected against load peaks.
PIN Description
8x
IN
P
UT
S
GND Ground 1
OUT0 Output transistor 0 2
OUT1 Output transistor 1 3
OUT2 Output transistor 2 4
OUT3 Output transistor 3 5
OUT4 Output transistor 4 6
OUT5 Output transistor 5 7
OUT6 Output transistor 6 8
OUT7 Output transistor 7 9
O.COM Common wheeling diodes 10
8x
O
UT
P
UT
S
IN0 Input 0 (5-15V) 11
IN1 Input 1 (5-15V) 12
IN2 Input 2 (5-15V) 13
IN3 Input 3 (5-15V) 14
IN4 Input 4 (5-15V) 15
IN5 Input 5 (5-15V) 16
IN6 Input 6 (5-15V) 17
IN7 Input 7 (5-15V) 18
I.GND Opto-couplers ground 19
PWR Ext. power supply 20
1 20