Instruction manual

INPUTS
13
Figure 9 – RS232 Main Interface Connections Using Hardware Handshaking
INPUTS
There are two optocoupled polarity insensitive inputs available on the camera: Input 1 (Trigger)
and Input 2, a generic input:
The Trigger is used to trigger the camera so that it will acquire an image.
Input 2 can be used as a signal to a software task to perform an action.
The electrical features of both inputs are:
V
AB
= 30 Vdc max.
I
IN
= 10 mA (camera) + 12 mA (CBX) max.
The active state of these inputs are selected in software. Refer to the Camera Setup tab and
Discrete Input tool sections of the Impact Reference Guide (Publication # 843-0093).
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.
EXTERNAL TRIGGER CONNECTIONS
The connections are indicated in the following diagrams:
EXTERNAL TRIGGER INPUT CONNECTIONS USING CBX POWER
CBX500
Function
+V
Power Source - External Trigger
I1A
External Trigger A (polarity insensitive)
I1B
External Trigger B (polarity insensitive)
-V
Power Reference - External Trigger