I/O Specifications; Acquisition Trigger Input - Cognex In-Sight 5000 Series Installation Manual

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
ON: 20 to 28VDC (24VDC nominal)
Voltage
OFF: 0 to 3VDC (8VDC nominal threshold)
ON: 2.0 to 2.9mA
Current
OFF: < 250µA
Resistance: ~10 kOhms
1
In-Sight 5100, 5110, 5100C, 5400C,
Delay
5400CS, 5400, 5410, 5400S, 5410S,
5600, 5610
In-Sight 5403, 5413, 5403S, 5603,
5613
In-Sight 5401, 5411
In-Sight 5604, 5614
In-Sight 5605, 5615
The Breakout cable can be used to trigger from an NPN photoelectric sensor or PLC output. Connect TRIGGER+ 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
The Breakout cable can also be used to trigger from a PNP photoelectric sensor or PLC output. Connect TRIGGER+ to
the output of the photoelectric sensor and connect TRIGGER- to 0VDC. When the output turns ON, it pulls TRIGGER+ up
to +24VDC, turning the opto-coupler ON. For more information, refer to
1
Maximum latency is based on a 1µs trigger debounce.
62µs maximum latency between leading edge of trigger and
start of acquisition. Input pulse should be a minimum of 1ms
wide.
66µs maximum latency between leading edge of trigger and
start of acquisition. Input pulse should be a minimum of 1ms
wide.
76µs maximum latency between leading edge of trigger and
start of acquisition. Input pulse should be a minimum of 1ms
wide.
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.
58µs maximum latency between leading edge of trigger and
start of acquisition. Input pulse should be a minimum of 1ms
wide.
Figure 3-1: Acquisition Trigger Input Schematic
Description
Breakout Cable Specifications on
Breakout Cable Specifications on
Specifications
page 22.
page 22.
17