Pulnix TM-7EX Manuál stáhnout pdf (Strana 36)

MVS-8100L Hardware Description 2

36 Cognex MVS-8100L Hardware Manual

Strobe Output

Strobe output is used to activate a photo strobe at the instant of image acquisition. The

strobe device to be triggered should have optically isolated inputs. The strobe output

signal is a pulse of 20 to 30 mA, with a duration of about two horizontal line scans. The

polarity of this output is high. The schematic of the strobe output circuit is shown in

Figure 22.

Figure 22. Strobe output schematic

STRB+

1 K

1N4148

24 Ω

VCC

MMBT2907A

STRB–

1 2 ... 31 32 33 34 35 36 37 38 39 40

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Pulnix TM-7EX Manuál Strana 36