A-Series Hardware Guide 4-1
CHAPTER 4
I/O Reference
Refer to this section when wiring the A-Series cameras’s inputs and outputs.
Note: The camera does not provide a voltage source for inputs and outputs – that must be provided by an external source.
Refer to the characteristics tables below for detailed voltage requirement information.
Inputs
The A-Series camera has three input connections: one shift or general purpose input, one event or general purpose input,
and one camera trigger.
All three inputs are interrupt-driven and edge-triggered. Interrupt-driven means that a change of state on the input will
immediately cause an action. For the camera input, this means an image will be snapped. For the event and shift inputs,
this means that any inspection task can run when that input changes. Polled input means that the input’s status is checked
based on conditions defined in the inspection task. The shift and event inputs can also be used for general purpose, polled
inputs.
The active trigger edge (rising, falling, or both), and input pulse duration, are configured in the Utilities program. Event
detection is configured in the inspection task using Vision Program Manager (VPM).
The camera input’s electrical characteristics:
Input Current (nominal) ....3.75 mA @ 12Vdc; 5 mA @ 24 Vdc
Input Voltage.....................0-26 Vdc
Turn On Voltage................>2.8 Vdc
Turn On Delay...................10
μS
Min On Current.................2.5 mA
Turn Off Voltage ...............<1.5 Vdc
Turn Off Delay..................50
μS
Max Off Current................500
μA
This table lists the connector/terminal number input signals for the A10 model only. See page 5-3 for more details.
Connector and terminal
block number (A10 only)
Signal Name
1
2
Trigger Input +
Trigger Input -
3
4
Input 2 and Shift Event+
Input 2 and Shift Event -
5
6
Input 1 and Event Input +
Input 1 and Event Input -
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