Allied Vision Technologies Bonito PRO, Техническое руководство

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Camera interfaces
61 Bonito PRO Technical Manual V1.0.0
Out3 and Out4 (Opto-isolated)
Out3 and Out4 signals are optically isolated and require the user to provide a
voltage level, Isolated Out Power. The Out3, Out4 signal should be grounded by
adding an external load resistor as shown in figure 32 and table 18. Isolated Out
Power can be configured between 5 to 24 VDC.
The influence of various Isolated Out Power values and load values on the timing
response of the trigger is indicated in the following table. Trigger current, Out ICC,
is a function of Isolated Out Power voltage and Load resistor R.
Figure 32: Bonito PRO Out 3 and Out 4 trigger circuit
Figure 33: Bonito PRO Out 3 and Out 4 timing diagram
Isolated Out
Power OUT ICC R Load V Load
R Power
Dissipation
T
1
T
2
T
3
T
4
5 VDC 8 mA 500 Ω 4.2 VDC 35 mW 1.2 μ s 5.4 μ s 5.6 μ s 64 μ s
5 VDC 5 mA 2.4 K Ω 4.0 VDC 6.7 mW 1.2 μ s 5.4 μ s 4.4 μ s 34 μ s
12 VDC 2.1 mA 5 K Ω 10.4 VDC 21.6 mW 1.2 μ s 10 μ s 4.0 μ s 47 μ s
24 VDC 1.8 mA 10 K Ω 18.4 VDC 33.9 mW 1.2 μ s 15 μ s 3.4 μ s 70 μ s
Table 18: Bonito PRO trigger circuit values
Out 3 / Out 4
422R
Isolated Out Power
External Camera Internal
TCMT1107
1
2
4
3
3.3 V Camera
Logic Signal
R Load
D S
G
Constant Current
Source
V Load
Isolated IO Ground
T
4
T
2
T
3
Camera Logic Signal
Out 3 / Out 4
T
1