Connecting a Hardware Trigger

Step 1: Wiring Trigger

Connect the following leads.

Trigger Leads	OV20i Lead Color	OV20i Pin Number
V(-)	Pink OR Yellow	Pin 5 OR Pin 6
V(+)	White/Green OR Brown/Green	Pin 13 OR Pin 14
Normally Closed NPN Output	Yellow/Brown	Pin 16

Step 2:

Go to Imaging Setup

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Change Trigger to Hardware Trigger

Manual-2023-07-11 08_29_52 (1).png

To start we recommend setting trigger debounce to 65,535us (max). More information on Trigger Delay and Trigger Debounce can be found below.

<aside> 💡 The OV20i has a dedicated digital input on the Power/IO cable for triggering the camera. The Trigger input is NPN (sinking, active low) and activated on a rising edge (i.e. transition from low to high state, or from closed to open circuit). Some examples of suitable Trigger devices include:

Sensors, buttons, or PLC modules with NPN, normally closed outputs
Normally closed switches or relays that provide a connection to ground </aside>

Additional Wiring Example

Example 1: Banner OTBVN6 Optical Touch Button

This button provides complementary NPN outputs (1x normally open, 1x normally closed). Use the normally closed output so that an image is captured when pressing/activating the button. If the normally open output is used, an image would be captured when releasing/deactivating the button.