Cognex In-Sight 1ABD, Справочное руководство

Страница: 48 / 57

High-Speed Outputs
The high-speed outputs can be used as either NPN (current sinking) or PNP (current sourcing) lines.
Specification Description
Voltage 28VDC maximum through external load
Current
1
50 mA maximum ON sink or source
OFF state leakage current 100 µA
External load resistance 240 Ohms to 10K Ohms
Each line rated at a maximum 50 mA, protected against over-current, short circuits and transients from
switching inductive loads. High current inductive loads require external protection diode.
For NPN lines, the external load should be connected between the output and the positive supply voltage (<28VDC).
The outputs pull down to less than 3VDC when ON, which causes current to flow through the load. When the outputs are
OFF, no current flows through the load. For more information, refer to Breakout Cable Specifications on page 50 .
For PNP lines, the external load should be connected between the output and the negative supply voltage (0VDC).
When connected to a 24VDC power supply, the outputs pull up greater than 21VDC when ON, and current flows through
the load. When the outputs are OFF, no current flows through the load. For more information, refer to Breakout Cable
Specifications on page 50 .
1
When connected to the CIO-1400 I/O expansion module, the two high-speed outputs are configured as NPN (current sinking) with 50mA
maximum current and the general-purpose outputs are configurable as NPN (current sinking) or PNP (current sourcing) with 100mA
maximum current.
48
Specifications