Acquisition Trigger Input
The vision system features one acquisition trigger input, which is optically isolated. You can configure the acquisition trigger input to trigger from an NPN (current sinking) or PNP (current sourcing) device.
- To trigger from an NPN type photoelectric sensor or PLC output, connect COMMON IN to +24 VDC and connect IN 0 to the output of the photoelectric sensor. When the output turns ON, it pulls TRIGGER down to 0 VDC, turning the opto-coupler ON.
- To trigger from a PNP photoelectric sensor or PLC output, connect IN 0 to the output of the photoelectric sensor and connect COMMON IN to 0 VDC. When the output turns ON, it pulls TRIGGER up to +24 VDC, turning the opto-coupler ON.
Note: The acquisition input is compliant to IEC 61131-2 Type 1, 2, 3. The current input limit is 2.5 mA. The voltage range is between 12 - 30 V. The maximum in put frequency is 500 kHz, and depends on the length of the cable. The 500 kHz is valid with up to 15 meters long Cognex cables.
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|---|---|
| Number | Input |
| 1 | IN 0 |
| 2 | COMMON IN |
