Pulnix TM-6703 Bedienerhandbuch PDF herunterladen (Seite 15)

OPERATION

Page 10 TM-6703 Progressive Scan Double Speed Shutter Camera

3.1.2 Driving /VINIT

The TM-6703 VINIT input circuit equivalently has 10K ohm input resistance (Figure 4, “VINIT

(Vertical Initialization) Trigger Speciﬁcations,” on page 10). To drive this circuit, at least 0.5mA of

current is required to drive the camera.

Note: The VINIT signal must be a deﬁned, clean pulse for the asynchronous reset function to

work properly. Some triggering systems (e.g., optical isolators, mechanical relays, noisy

electrical devices, etc.) have bounce or rapid transition between high and low states. It is

highly recommended that the input VINIT pulse be analyzed by test equipment to ensure

proper signal characteristics. If an unspeciﬁed signal is used, improper camera

performance may result.

FIGURE 4. VINIT (Vertical Initialization) Trigger Speciﬁcations

Note: PULNiX does not recommend voltage levels less than standard 0 to 5 V.

FIGURE 5. Equivalent Circuit

+5V

0 V

TTL

Level

t 2H 500H

Min. Max.

H = 31.8µs

10K

VINIT

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Pulnix TM-6703 Bedienerhandbuch Seite 15