Cognex In-Sight 1450, Инструкция по установке и справочник

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Specifications
3.3.3 General-Purpose Outputs
The I/O Expansion Module extends the capabilities of supported In-Sight vision sensors by
providing eight general-purpose discrete outputs that can be used to trigger remote events from
supported In-Sight vision sensors.
NOTE The general-purpose I/O signals are approximately 1ms slower in updating and are inverse in polarity when
compared to the high-speed outputs. This delay must be considered when trigger rates exceed the required
processing time.
Table 3-5: Output Specifications
SPECIFICATION DESCRIPTION
VOLTAGE +24VDC (28V maximum through external load)
CURRENT Maximum 150mA (sinking) / Maximum 1mA (sourcing)
DELAY Pulse mode 1mSec max.
Set/Reset mode 801
µ Sec max.
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.
Figure 3-4: General-Purpose Outputs
The general-purpose outputs are NPN (sinking) outputs, but the logic is inverted. Therefore,
when the In-Sight sensor is ON, the outputs are pulled up to 24VDC via a 2.2K internal resistor
and the I/O module’s internal transistor is OFF. When the In-Sight sensor is OFF, the outputs are
pulled to ground (0V) and the I/O module’s internal transistor is ON.
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