Cognex In-Sight 5000 Series, Installation Manual

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I/O Specifications
Cable and connector specifications and connection examples for the acquisition trigger input, encoder inputs (In-Sight
5604 only) and the high-speed outputs are provided in the following sections.
Acquisition Trigger Input
The vision system features one acquisition trigger input, which is optically isolated. The acquisition trigger input can be
configured to trigger from either an NPN (current sinking) or PNP (current sourcing) device.
Table 3-5: Acquisition Trigger Input
Specification Description
Voltage
ON: 20 to 28VDC (24VDC nominal)
OFF: 0 to 3VDC (8VDC nominal threshold)
Current
ON: 2.0 to 2.9mA
OFF: < 250µA
Resistance: ~10 kOhms
Delay
1
In-Sight 5100, 5110, 5100C, 5400C,
5400CS, 5400, 5410, 5400S, 5410S,
5600, 5610 62µs maximum latency between leading edge of trigger and
start of acquisition. Input pulse should be a minimum of 1ms
wide.
In-Sight 5403, 5413, 5403S, 5603,
5613 66µs maximum latency between leading edge of trigger and
start of acquisition. Input pulse should be a minimum of 1ms
wide.
In-Sight 5401, 5411 76µs maximum latency between leading edge of trigger and
start of acquisition. Input pulse should be a minimum of 1ms
wide.
In-Sight 5604, 5614 1 line (approximately equivalent to 23µs, based on a 1.4µs
Exposure) is the maximum latency between leading edge of
trigger and start of acquisition. Input pulse should be a minimum
of 1ms wide.
In-Sight 5605, 5615
58µs maximum latency between leading edge of trigger and
start of acquisition. Input pulse should be a minimum of 1ms
wide.
The Breakout cable can be used to trigger from an NPN photoelectric sensor or PLC output. Connect to
+24VDC and connect TRIGGER- to the output of the photoelectric sensor. When the output turns ON, it pulls TRIGGER-
down to 0VDC, turning the opto-coupler ON. For more information, refer to Breakout Cable Specifications on page 22 .
The Breakout cable can also be used to trigger from a PNP photoelectric sensor or PLC output. Connect to
the output of the photoelectric sensor and connect TRIGGER- to 0VDC. When the output turns ON, it pulls up
to +24VDC, turning the opto-coupler ON. For more information, refer to Breakout Cable Specifications on page 22 .
Figure 3-1: Acquisition Trigger Input Schematic
1
Maximum latency is based on a 1µs trigger debounce.
Specifications
17