Cognex In-Sight 1450, Installation And Reference Manual

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Model 1450 I/O Expansion Module Installation & Reference
3.3.2 High-Speed Outputs
In-Sight 1000 series, 3400, 4000 series and 5000 series sensors feature two built-in, high-speed
discrete outputs. The I/O Expansion Module provides access to these outputs while providing an
additional eight general-purpose discrete outputs that can be used to trigger remote events. The
high-speed outputs are passed through the I/O module without processing.
Table 3-4: High-Speed Output Specifications
SPECIFICATION DESCRIPTION
VOLTAGE 28V maximum through external load.
200mA maximum sink current.
OFF state leakage current 100 µ A maximum
.
External load resistance 120 to 10K Ohms
.
CURRENT
Each line rated at a maximum 200mA, protected against over-current, short circuit, and
transients from switching inductive loads. High current inductive loads require an external
protection diode.
CAUTION
■ The In-Sight 1450 I/O Expansion 24V OUT pins are intended to supply low current in support of the
I/O lines. Do not use these pins to supply power to other devices.
■ High current inductive loads require an external protection diode.
Both of the high-speed outputs are NPN (pull-down) lines. The external load should be
connected between the output and the positive supply voltage (<28V). The outputs pull down to
0V when ON, which causes current to flow through the load. When the outputs are OFF, no
current flows through the load.
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