National Instruments NI 17xx Isolated Inputs

Chapter 2 Power and I/O

© National Instruments Corporation 2-3 NI 17xx Smart Camera 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.

Isolated Inputs

Caution Do not apply a voltage greater than 30 VDC to the isolated inputs. Voltages

greater than 30 VDC may damage the NI Smart Camera.

Caution The isolated inputs and outputs on the smart camera provide an easy 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 Figures2-1 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

Sensor

Power

Sensor

Common

PNP (Sourcing)

Output Device

NI 17xx

TrigIn+

IsoIn(0)+

IsoIn(1)+

TrigIn–

IsoIn(0)–

IsoIn(1)–

Contents

Main Page Important Information Warranty Copyright Trademarks Patents Compliance Compliance with FCC/Canada Radio Frequency Interference Regulations Determining FCC Class FCC/DOC Warnings Class A Contents Chapter 4 Lighting Chapter 5 Image Acquisition Chapter 6 LEDs and DIP Switches Page About This Manual Conventions Related Documentation Hardware Documents NI Vision Builder for Automated Inspection Documents LabVIEW and NI Vision Development Module Documents NI Vision Acquisition Software Documents NI Smart Camera Overview Hardware Overview Page Figure 1-1 shows the smart camera. Figure 1-1. NI Smart Camera Software Overview NI Vision Builder for Automated Inspection LabVIEW LabVIEW Real-Time Module NI Vision Development Module NI Vision Acquisition Software Power and I/O POWER-I/O Connector NI Smart Camera Power Requirements Isolated Inputs Isolated Outputs The isolated outputs can be used to drive external loads, as shown in Figures 2-3 and 2-4. Figure 2-3. Connecting an Isolated Output to a Sourcing External Load Figure 2-4. Connecting an Isolated Output to a Sinking External Load Protecting Against Inductive Loads Connecting to Serial Devices Communicating with the Console Connecting to a Quadrature Encoder Figure2 -5 shows an example of connecting the quadrature encoder differential line drivers. Figure 2-5. Connecting Differential Line Drivers Figure 2-6. NI Smart Camera Quadrature Encoder Input Circuit Figure 2-6 shows the internal quadrature encoder/RS-422 input circuit. NI Smart Camera Image Sensor Field of View Page Image Sensor Spectral Response Partial Scan Mode Binning Gain Hardware Binarization Page Lighting Lighting Connector Direct Drive Lighting Controller Page Lighting Files Selecting a Light Connecting a Light to the Direct Drive Lighting Controller External Lighting Controllers Connecting an External Lighting Controller to the NI Smart Camera Page Image Acquisition Exposure Acquiring Images Internal Timing External Trigger Page Page Maximum Frame Rate Determining the Maximum Frame Rate Determining the Scan Mode Determining the Exposure Time Determining the Lighting Mode Determining the Trigger Delay Calculating the Minimum Frame Period Page LEDs and DIP Switches Understanding the LED Indicators Device Initialization POWER LED STATUS LED Page IMG ACQ LED PASS LED FAIL LE D Configuring DIP Switches SAFE MODE Switch IP RESET Switch NO APP Switch CONSOLE Switch Ethernet Ports Ethernet LEDs ACTIVITY/LINK LED SPEED LED DHCP and Static IP Address Assignment Firewall Considerations Subnet Considerations Thermal Considerations and Mounting Thermal Considerations Mounting the NI Smart Camera Figure 8-2. Back View of the NI Smart Camera with Dimensions Figure 8-3. Front View of the NI Smart Camera with Dimensions Figure 8-4. Side View of the NI Smart Camera with Dimensions Figure 8-5. Bottom View of the NI Smart Camera with Dimensions A Specifications Power Requirements Memory Processor VGA Sensor (NI 1722/1742/1762 Only) SXGA Sensor (NI 1744/1764 Only) Page Lighting Network Serial Optically Isolated Inputs and Outputs Isolated Inputs Isolated Outputs Quadrature Encoder (NI 1742/1744/1762/1764 Only) Physical Characteristics Environmental Safety Electromagnetic Compatibility CE Compliance Environmental Management Waste Electrical and Electronic Equipment (WEEE) RoHS B Troubleshooting Configuration Problems The NI Smart Camera Does Not Appear in MAX or Vision Builder AI The NI Smart Camera Restarts Unexpectedly Run-Time Problems The NI Smart Camera is Unresponsive and Blinks the IMG ACQ and FAIL LED s Lighting Problems The Light Does Not Illuminate When Using the Direct Drive Controller There is No External Lighting Strobe MAX Vision Builder AI Triggering Problems No Trigger is Received LED Error Indications STATUS LED Error Conditions POWER LED is Not Lit When the NI Smart Camera is Powered On C Maintenance D Technical Support and Professional Services Page Glossary B C D E Page Page Page Index Numerics A B C G H I K L P Q R S T U V W