Isolated Inputs - National Instruments ISC-1762 User Manual

If you are using the Direct Drive lighting controller, the power supply wattage must be sufficient
to power both the camera and the light. The power required by the light can be significantly more
than the power required by the smart camera.
Note The NI Smart Camera will revert to the default timestamp if power is
interrupted and the device is not connected to a network. Ensure your power supply
is not interrupted, or the device is connected to a networked or local SMTP server, to
maintain accurate timestamps.

Isolated Inputs

Caution
Voltages greater than 30 VDC may damage the NI Smart Camera.
Caution
means for preventing ground loops that could degrade signal integrity. The isolation
on the smart camera is not safety isolation.
You can wire an isolated input to both sourcing and sinking output devices. Refer to Figures 2-1
and 2-2 for wiring examples by output type. Refer to Appendix A, Specifications, for current
requirements.
Isolated inputs are not compatible with 5 V logic.
Figure 2-1. Connecting External Sourcing Output Sensors to Isolated Inputs
PNP (Sourcing)
Output Device
Do not apply a voltage greater than 30 VDC to the isolated inputs.
The isolated inputs and outputs on the smart camera provide an easy
Sensor
Power
Sensor
Common
TrigIn+
IsoIn(0)+
IsoIn(1)+
TrigIn–
IsoIn(0)–
NI 17xx
IsoIn(1)–
NI 17xx Smart Camera User Manual
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