Datalogic A30, Руководство по оборудованию

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A30™ HARDWARE GUIDE
30
5
5.6 INPUTS
There are two optocoupled polarity insensitive inputs available on the M16 19-pin connector of
the camera: Input 1 (External Trigger) and Input 2, a generic input.
The External Trigger is the image acquisition trigger.
The main function of the general purpose Input 2 is to detect an input signal.
The electrical features of both inputs are:
INPUT | V
AB
| Min. | V
AB
| Max. I
IN
Max
.
Open 0 V 2 V 0 mA
Closed 4.5 V 30 V 10 mA
The active states of these inputs are selected in software.
An anti-disturbance filter is implemented in software on both inputs so that the minimum pulse
duration is ≅ 0.5 milliseconds. This value can be increased through the software parameter
Debounce Filter. Refer to the Camera Setup tab section in the Impact Reference Guide for
further details.
These inputs are optocoupled and can be driven by both NPN and PNP type commands.
NOTE
Polarity insensitive inputs assure full functionality even if pins A and B are
exchanged.
The connections are indicated in the following diagrams:
Pin Name Function
A Vdc Power Supply input v
B I1A External Trigger A (polarity insensitive)
C I1B External Trigger B (polarity insensitive)
L GND Power Supply input voltage -
The Busy LED is on when the active state of the External Trigger corresponds to ON.