National Instruments 9146 User manual

OPERATING INSTRUCTIONS AND SPECIFICATIONS

NI 9146

Ethernet Expansion Chassis for C Series Modules

Figure 1. NI 9146 Front Panel

This document describes how to connect the NI 9146 to a network and

how to use the features of the NI 9146. This document also contains

specifications for the NI 9146.

1LEDs

2 RJ-45 Ethernet Port

3 Power Connector

4 Reset Button

POWER

STATUS

USER FPGA1

NI 9146

INPUT

9-30 V

15 W MAX

TIO

RT UT

EN S

ACT/

LINK

10/100

RESET

NI 9146 Operating Instructions and Specifications 2 ni.com

Safety Guidelines

Operate the NI 9146 only as described in these operating instructions.

Safety Guidelines for Hazardous Locations

The NI 9146 is suitable for use in Class I, Division 2, Groups A, B, C, D,

T4 hazardous locations; Class 1, Zone 2, AEx nC IIC T4 and Ex nL IIC T4

hazardous locations; and nonhazardous locations only. Follow these

guidelines if you are installing the NI 9146 in a potentially explosive

environment. Not following these guidelines may result in serious injury or

death.

Caution Do not disconnect the power supply wires and connectors from the controller

unless power has been switched off.

Caution Substitution of components may impair suitability for Class I, Division 2.

Caution For Zone 2 applications, install the CompactRIO system in an enclosure rated to

at least IP 54 as defined by IEC 60529 and EN 60529.

Special Conditions for Hazardous Locations Use

in Europe

Some chassis have been evaluated as Ex nA nL IIC T4 equipment under

DEMKO Certificate No. 07 ATEX 0626664X. Each such chassis is marked

II 3G and is suitable for use in Zone 2 hazardous locations, in ambient

temperatures of –40 ≤Ta ≤ 70 °C.

Special Conditions for Marine Applications

Some chassis are Lloyd’s Register (LR) Type Approved for marine

applications. To verify Lloyd’s Register certification, visit ni.com/

certification and search for the LR certificate, or look for the

Lloyd’s Register mark on the chassis.

What You Need to Install the NI 9146 Ethernet

Expansion Chassis

❑NI 9146 Ethernet expansion chassis

❑NI-RIO Software DVD

❑C Series I/O modules

©National Instruments 3 NI 9146 Operating Instructions and Specifications

❑DIN rail mount kit (for DIN rail mounting only)

❑Panel mount kit (for panel mounting only)

❑Two M4 or number 8 flathead screws (for mounting the chassis

without one of the listed mounting kits)

❑A number 2 Phillips screwdriver

❑Power supply

❑Ethernet cable

Notes Visit ni.com/info and enter the Info Code rdsoftwareversion to determine

which software you need to use the NI 9146.

Mounting the Chassis

You can mount the chassis horizontally on a flat, vertical, metallic surface

such as a panel or wall. The maximum allowable ambient temperature

for operation in this configuration is 70 °C. Figure 2 shows the chassis

mounted horizontally.

Figure 2. NI 9146 Mounted Horizontally

You can also mount the chassis on a panel or wall in other orientations, on

a non-metallic surface, on a 35 mm DIN rail, on a rack, in an enclosure, or

on a desktop. Mounting the chassis in these or other configurations can

reduce the maximum allowable ambient temperature and can affect the

typical accuracy of modules in the chassis.

Note For information about how different mounting configurations can cause temperature

derating, go to ni.com/info and enter the Info Code criomounting.

Note For information about typical accuracy specifications for modules, go to ni.com/

info and enter the Info Code criotypical.

RESET

POWER

STATUS

USER FPGA1

NI 9146

INPUT

9-30 V

15 W MAX

TIO

RT UT

EN S

ACT/

LINK

10/100

NI 9146 Operating Instructions and Specifications 4 ni.com

Note Measure the ambient temperature at each side of the chassis, 63.5 mm (2.5 in.) from

the side and 25.4 mm (1 in.) forward from the rear of the chassis, as shown in Figure 3.

Caution Your installation must meet the following requirements for space and cabling

clearance:

• Allow 25.4 mm (1 in.) on the top and the bottom of the chassis for air circulation.

• Allow 50.8 mm (2 in.) in front of modules for cabling clearance for common

connectors, such as the 10-terminal, detachable screw terminal connector, as shown

in Figure 3.

Figure 3. NI 9146, Bottom View with Dimensions

Note Go to ni.com/info and enter the Info Code rdcrioconn to find the minimum

cabling clearance for C Series modules with other connector types.

Figure 4. NI 9146, Front View with Dimensions

1 Measure ambient temperature here. 2 Chassis Grounding Screw

4 mm

(0.16 in.)

178.1 mm

(7.01 in.)

29.1 mm

(1.14 in.)

64.3mm

(2.53in.)

48.4 mm

(1.91 in.)

Cabling Clearance

50.8 mm (2.00 in.)

25.4 mm

(1 in.)

63.5 mm

(2.50 in.)

63.5 mm

(2.50 in.)

25.4 mm

(1 in.)

RESET

POWER

POWERPOWER

STATUS

USER FPGA1USER FPGA1

NI 9146

INPUT

9-30 V

15 W MAX

TIO

RT UT

EN S

ACT/

LINK

10/100

87.3mm

(3.44 in.)

41.1 mm

(1.62 in.)

47.0 mm

(1.85 in.)

47.2 mm

(1.86 in.)

30.6 mm

(1.2 in.)

Cooling Outline 25.4 mm (1 in.)

©National Instruments 5 NI 9146 Operating Instructions and Specifications

Figure 5. NI 9146, Side View with Dimensions

The following sections contain instructions for the mounting methods.

Before using any of these mounting methods, record the serial number from

the back of the chassis. You will be unable to read the serial number after

you have mounted the chassis.

Caution Make sure that no I/O modules are in the chassis before mounting it.

Mounting the Chassis on a Flat Surface

Using the NI 9904 Panel Mount Kit

Panel or wall mounting is the best method for applications that are subject

to high shock and vibration. You can use the NI 9904 panel mount kit to

mount the NI 9146 on a flat surface. Complete the following steps.

1. Fasten the chassis to the panel mount kit using a number 2 Phillips

screwdriver and two M4 ×25 screws. National Instruments provides

these screws with the panel mount kit. You must use these screws

because they are the correct depth and thread for the panel. Tighten the

screws to a maximum torque of 1.3 N ⋅m (11.5 lb ⋅in.).

]

2X M4X0.7

44.0 mm

(1.73in.)

74.0 mm

(2.91 in.)

29.1 mm

(1.15 in.)

44.1 mm

(1.54 in.)

NI 9146 Operating Instructions and Specifications 6 ni.com

Figure 6. Installing the Panel Mount Accessory on the NI 9146

Figure 7. Dimensions of NI 9146 with Panel Mount Accessory Installed

2. Fasten the NI 9904 panel to the wall using the screwdriver and screws

that are appropriate for the wall surface. The maximum screw size is

M4 or number 8.

Caution Make sure that no I/O modules are in the chassis before removing it from the

panel.

RESET

POWER

STATUS

USER FPGA1

NI 9146

INPUT

9-30 V

15 W MAX

TIO

RT UT

EN S

ACT/

LINK

10/100

29.5 mm

(1.16 in.)

9.5 mm

(0.38 in.)

27.3mm

(1.08 in.)

215.9 mm

(8.5 in.)

235.0 mm

(9.25 in.)

31.7 mm

(1.25 in.) 63.5 mm

(2.50 in.)

88.1 mm

(3.47 in.)

7.2 mm

(0.29 in.)

©National Instruments 7 NI 9146 Operating Instructions and Specifications

Mounting the Chassis Directly on a Flat Surface

Using the Mounting Holes

Panel or wall mounting is the best method for applications that are subject

to high shock and vibration. If you do not have the NI 9904 panel mount kit

and do not require the portability that the NI 9904 affords, you can mount

the chassis directly on a flat surface using the mounting holes. Complete

the following steps.

1. Align the chassis on the surface.

2. Fasten the chassis to the surface using M4 or number 8 flathead screws,

as shown in Figure 8. National Instruments does not provide these

screws with the chassis.

Figure 8. Mounting the Chassis Directly on a Flat Surface

Caution Make sure that no I/O modules are in the chassis before removing it from the

surface.

Mounting the Chassis on a DIN Rail

You can order the NI 9912 DIN rail mount kit if you want to mount the

chassis on a DIN rail. You need one clip for mounting the chassis on a

standard 35 mm DIN rail. Complete the following steps to mount the

chassis on a DIN rail.

1. Fasten the DIN rail clip to the chassis using a number 2 Phillips

screwdriver and two M4 ×25 screws. National Instruments provides

these screws with the DIN rail mount kit. Tighten the screws to a

maximum torque of 1.3 N ⋅m (11.5 lb ⋅in.).

RESET

POWER

STATUS

USER FPGA1

NI 9146

INPUT

9-30 V

15 W MAX

TIO

RT UT

EN S

ACT/

LINK

10/100

NI 9146 Operating Instructions and Specifications 8 ni.com

Figure 9. Installing the DIN Rail Clip on the NI 9146

2. Insert one edge of the DIN rail into the deeper opening of the DIN rail

clip, as shown in Figure 10.

Figure 10. One Edge of the DIN Rail Inserted in a Clip

3. Press down firmly on the chassis to compress the spring until the clip

locks in place on the DIN rail.

Caution Make sure that no I/O modules are in the chassis before removing it from the

DIN rail.

1 DIN Rail Clip 2 DIN Rail 3 DIN Rail Spring

©National Instruments 9 NI 9146 Operating Instructions and Specifications

Mounting the Chassis on a Desktop

Using the NI 9901 Desktop Mounting Kit

You can use the NI 9901 desktop mounting kit to mount the chassis on a

desktop. You must install the adapter bracket using two M3 ×20 screws.

The adapter bracket and the screws are included in the kit. Refer to the

NI 9901 documentation for information about mounting the chassis on a

desktop.

Installing C Series I/O Modules in the Chassis

Figure 11 shows the mechanical dimensions of C Series I/O modules.

Figure 11. C Series I/O Module, Front and Side View with Dimensions

Complete the following steps to install a C Series I/O module in the chassis.

1. Make sure that no I/O-side power is connected to the I/O module. If the

system is in a nonhazardous location, the chassis power can be on

when you install I/O modules.

2. Align the I/O module with an I/O module slot in the chassis as shown

in Figure 12. The module slots are labeled 1 to 4, left to right.

88.1 mm

(3.47 in.)

70.7 mm

(2.78 in.)

22.9 mm

(0.9 in.)

NI 9146 Operating Instructions and Specifications 10 ni.com

Figure 12. Installing an I/O Module in the Chassis

3. Squeeze the latches and insert the I/O module into the module slot.

4. Press firmly on the connector side of the I/O module until the latches

lock the I/O module into place.

5. Repeat these steps to install additional I/O modules.

Removing I/O Modules from the Chassis

Complete the following steps to remove a C Series I/O module from the

chassis.

1. Make sure that no I/O-side power is connected to the I/O module. If the

system is in a nonhazardous location, the chassis power can be on

when you remove I/O modules.

2. Squeeze the latches on both sides of the module and pull the module

out of the chassis.

1 Insertion Groove 2 Latch

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