National Instruments Smart Camera User Manual

USER GUIDE

NI Smart Camera I/O Accessory

This document describes the features of the NI Smart Camera I/O Accessory, what you need to get started, installation and operation instructions, and accessory specifications.

The NI Smart Camera I/O Accessory features the following:

• Spring terminals for two isolated inputs

• Spring terminals for two isolated outputs

• Spring terminals for the quadrature encoder inputs

• Two power connection options

• An RS-232 connector to communicate with the smart camera serial port

• User-replaceable fuses for isolated outputs, RS-232, and accessory power

• Built-in DIN rail clips for easy mounting

Figure 1 shows the accessory circuit board parts locator diagram.

NATIONAL INSTRUMENTS

NI SMART CAMERA

I/O ACCESSORY

11 10 9 8 7 6

1 Camera D-SUB Connector 2 RS-232 D-SUB Connector 3 24 VDC D-SUB Connector 4 Power In Selection Switch 5 24VDC Two-Position Connector 6 Isolated Output 1 Terminals

Figure 1. Front and Back Views of the NI Smart Camera I/O Accessory Circuit Board

321

7 Isolated Output 0 Terminals 8 Quadrature Encoder Phase B Terminals 9 Quadrature Encoder Phase A Terminals 10 Isolated Input 1 Terminals 11 Isolated Input 0 Terminals 12 Spare Power Fuse

12 13

13 Power Fuse 14 Spare RS-232 Fuse 15 RS-232 Fuse 16 Isolated Output 0 Fuse 17 Spare Isolated Output Fuses 18 Isolated Output 1 Fuse

What You Need to Get Started

❑ NI Smart Camera I/O Accessory kit, which includes the accessory, 15-pin D-SUB female to 15-pin

D-SUB male cable, 2 m (part number 197817-02), and two-position header connector (Wago part number 734-102, available from

❑ NI 17xx Smart Camera

❑ One of the following power supply options:

Caution Use the smart camera only with a 24 VDC, UL listed, limited power source (LPS) supply.

The power supply will bear the UL listed mark, LPS. The power supply must also meet any safety and compliance requirements for the country of use.

– NI desktop power supply (part number 780237-01) and power supply cord. Refer to ni.com

for the power supply cord part number specific to your region and ordering information.

– Any 24 VDC, +20%/–15% (IEC 1311) power supply, such as the PS-5 power supply (part

number 778805-90), and custom power cable. Refer to the Building a Custom Power Cable section for information about building a power cable for the NI Smart Camera I/O Accessory.

❑ (Optional) NI 9-pin female D-SUB to 9-pin female D-SUB null modem RS-232 cable

(part number 182238-xx)

❑ 0.125 in. flathead screwdriver

❑ 12–28 AWG wire

❑ Wire cutter

❑ Wire insulation stripper

www.wago.com)

❑ Related documentation—The following documents, available from ni.com/manuals, contain

information you may find helpful as you set up and use the NI Smart Camera I/O Accessory:

– Getting Started with the NI 17xx Smart Camera

– NI 17xx Smart Camera User Manual

Safety Information

Caution The following paragraphs contain important safety information you must follow when

installing and operating the device.

Do not operate the device in a manner not specified in this document. Misuse of the device can result in a hazard. You can compromise the safety protection built into the device if the device is damaged in any way. If the device is damaged, return it to National Instruments (NI) for repair.

Do not substitute parts or modify the device except as described in this document. Use the device only with the chassis, devices, accessories, and cables specified in the installation instructions. You must have all covers and filler panels installed during operation of the device.

Do not operate the device in an explosive atmosphere or where there may be flammable gases or fumes. If you must operate the device in such an environment, it must be in a suitably rated enclosure.

If you need to clean the device, use a soft, nonmetallic brush. Make sure that the device is completely dry and free from contaminants before returning it to service.

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Operate the device only at or below Pollution Degree 2. Pollution is foreign matter in a solid, liquid, or gaseous state that can reduce dielectric strength or surface resistivity. The following is a description of pollution degrees:

• Pollution Degree 1 means no pollution or only dry, nonconductive pollution occurs. The pollution has no influence.

• Pollution Degree 2 means that only nonconductive pollution occurs in most cases. Occasionally, however, a temporary conductivity caused by condensation must be expected.

• Pollution Degree 3 means that conductive pollution occurs, or dry, nonconductive pollution occurs that becomes conductive due to condensation.

You must insulate signal connections for the maximum voltage for which the device is rated. Do not exceed the maximum ratings for the device. Do not install wiring while the device is live with electrical signals. Do not remove or add connector blocks when power is connected to the system. Avoid contact between your body and the connector block signal when hot swapping devices. Remove power from signal lines before connecting them to or disconnecting them from the device.

Operate the device at or below the installation category circuits are subjected to working voltages

and transient stresses (overvoltage) from the circuit to which

marked on the hardware label. Measurement

they are connected during measurement or test. Installation categories establish standard impulse withstand voltage levels that commonly occur in electrical distribution systems. The following is a description of installation categories:

• Installation Category I is for measurements performed on circuits not directly connected to the

electrical distribution system referred to as MAINS

voltage. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.

• Installation Category II is for measurements performed on circuits directly connected to the electrical distribution system. This category refers to local-level electrical distribution, such as that provided by a standard wall outlet (for example, 115 AC voltage for U.S. or 230 AC voltage for Europe). Examples of Installation Category II are measurements performed on household appliances, portable tools, and similar devices.

• Installation Category III is for measurements performed in the building installation at the distribution level. This category refers to measurements on hard-wired equipment such as equipment in fixed installations, distribution boards, and circuit breakers. Other examples are wiring, including cables, bus bars, junction boxes, switches, socket outlets in the fixed installation, and stationary motors with permanent connections to fixed installations.

• Installation Category IV is for measurements performed at the primary electrical supply installation (<1,000 V). Examples include electricity meters and measurements on primary overcurrent protection devices and on ripple control units.

Installation categories, also referred to as measurement categories, are defined in electrical safety standard IEC 61010-1.

Working voltage is the highest rms value of an AC or DC voltage that can occur across any particular insulation.

MAINS is defined as a hazardous live electrical supply system that powers equipment. Suitably rated measuring circuits may be connected to the MAINS for measuring purposes.

Installation

To get started with the NI 17xx Smart Camera I/O Accessory, complete the following steps while referring to Figure 1.

If you have not already installed the NI Smart Camera and required software, refer to Getting Started with the NI 17xx Smart Camera for instructions.

Note For EMC compliance, operate this device with shielded cables.

Caution Never touch the exposed pins of connectors.

Connect the Camera Cable

Connect the 15-pin D-SUB female to 15-pin D-SUB male cable to the CAMERA connector on the accessory and to the POWER-I/O connector on the smart camera. Refer to the NI 17xx Smart Camera User Manual for the POWER-I/O connector pinout and signal information.

Connect the RS-232 Cable (Optional)

For serial communication purposes, connect an RS-232 cable to the RS-232 connector on the accessory and to the serial port on your computer. Refer to the NI 17xx Smart Camera User Manual for information about configuring and using the serial port of the smart camera.

Connect Signal Wires

Connect the wires to the isolated input, isolated output, and/or quadrature encoder terminal blocks by stripping 1/4 in. of insulation, pressing on the lever of the spring terminal with a small flathead screwdriver, and inserting the wire into the terminal. Figure 1 shows the terminal locations. Refer to the NI 17xx Smart Camera User Manual for information about using isolated inputs, isolated outputs, and quadrature encoders.

Connect Power

Connect the power using a D-SUB power cable or a custom two-position power cable.

Caution Do not connect input voltages greater than 24 VDC to the NI Smart Camera I/O Accessory.

Input voltages greater than 24 VDC can damage the accessory, all devices connected to it, and the host computer. National Instruments is not liable for damage or injury resulting from such misuse.

Option A: Using a D-SUB Power Cable

If you are using a power supply other than the NI desktop power supply, refer to the Building a 15-Pin

D-SUB Power Cable section for information about building a custom 15-pin D-SUB power cable.

1. Connect the power supply cord to the 24VDC D-SUB connector on the accessory and to the connector on the power supply.

2. Move the power in selection switch “up”, towards the 24VDC D-SUB connector.

Option B: Using a Custom Two-Position Power Cable

Refer to the Building a Two-Position Power Cable section for information about building a custom two-position power cable.

1. Connect the custom two-position power cable to the 24VDC two-position connector on the accessory and to the connector on the power supply.

2. Move the power in selection switch “down”, towards the 24VDC two-position connector.

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