National Instruments C Series User manual

GETTING STARTED GUIDE
NI 9997
2-Channel, 11 A, C Series Busbar Module

This document explains how to connect to the NI 9997.
Note Before you begin, complete the software and
hardware installation procedures in your chassis
documentation.
Note The guidelines in this document are specific to
the NI 9997. The other components in the system might
not meet the same safety ratings. Refer to the
documentation for each component in the system to
determine the safety and EMC ratings for the entire
system.
Safety Guidelines
Operate the NI 9997 only as described in this document.
Caution Do not operate the NI 9997 in a manner not
specified in this document. Product misuse can result in
a hazard. You can compromise the safety protection
built into the product if the product is damaged in any
way. If the product is damaged, return it to NI for
repair.
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Hazardous Voltage This icon denotes a warning
advising you to take precautions to avoid electrical
shock.
Safety Guidelines for Hazardous Voltages
If hazardous voltages are connected to the device, take the
following precautions. A hazardous voltage is a voltage greater
than 42.4 Vpk voltage or 60 VDC to earth ground.
Caution Ensure that hazardous voltage wiring is
performed only by qualified personnel adhering to local
electrical standards.
Caution Do not mix hazardous voltage circuits and
human-accessible circuits on the same module.
Caution Ensure that devices and circuits connected to
the module are properly insulated from human contact.
Caution When module terminals are hazardous
voltage LIVE (>42.4 Vpk/60 VDC), you must ensure
that devices and circuits connected to the module are
properly insulated from human contact. You must use
the 6-position connector backshell kit (783804-01)
NI 9997 Getting Started Guide | © National Instruments | 3

connector backshell kit to ensure that the terminals are
not accessible.
Safety Guidelines for Hazardous Locations
The NI 9997 is suitable for use in Class I, Division 2, Groups A,
B, C, D, T4 hazardous locations; Class I, Zone 2, AEx nA IIC T4
and Ex nA IIC T4 hazardous locations; and nonhazardous
locations only. Follow these guidelines if you are installing the
NI 9997 in a potentially explosive environment. Not following
these guidelines may result in serious injury or death.
Caution Do not disconnect I/O-side wires or
connectors unless power has been switched off or the
area is known to be nonhazardous.
Caution Do not remove modules unless power has
been switched off or the area is known to be
nonhazardous.
Caution Substitution of components may impair
suitability for Class I, Division 2.
Caution For Division 2 and Zone 2 applications,
install the system in an enclosure rated to at least IP54
as defined by IEC/EN 60079-15.
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Special Conditions for Hazardous Locations Use in
Europe and Internationally
The NI 9997 has been evaluated as Ex nA IIC T4 Gc equipment
under DEMKO Certificate No. 12 ATEX 1202658X and is
IECEx UL 14.0089X certified. Each NI 9997 is marked II 3G
and is suitable for use in Zone 2 hazardous locations, in ambient
temperatures of -40 °C ≤ Ta ≤ 70 °C. If you are using the NI 9997
in Gas Group IIC hazardous locations, you must use the device in
an NI chassis that has been evaluated as Ex nC IIC T4, Ex IIC
T4, Ex nA IIC T4, or Ex nL IIC T4 equipment.
Caution You must make sure that transient
disturbances do not exceed 140% of the rated voltage.
Caution The system shall only be used in an area of
not more than Pollution Degree 2, as defined in
IEC 60664-1.
Caution The system shall be mounted in an
ATEX/IECEx-certified enclosure with a minimum
ingress protection rating of at least IP54 as defined in
IEC/EN 60079-15.
NI 9997 Getting Started Guide | © National Instruments | 5

Caution The enclosure must have a door or cover
accessible only by the use of a tool.
Electromagnetic Compatibility Guidelines
This product was tested and complies with the regulatory
requirements and limits for electromagnetic compatibility (EMC)
stated in the product specifications. These requirements and
limits provide reasonable protection against harmful interference
when the product is operated in the intended operational
electromagnetic environment.
This product is intended for use in industrial locations. However,
harmful interference may occur in some installations, when the
product is connected to a peripheral device or test object, or if the
product is used in residential or commercial areas. To minimize
interference with radio and television reception and prevent
unacceptable performance degradation, install and use this
product in strict accordance with the instructions in the product
documentation.
Furthermore, any changes or modifications to the product not
expressly approved by National Instruments could void your
authority to operate it under your local regulatory rules.
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Special Conditions for Marine Applications
Some products are Lloyd’s Register (LR) Type Approved for
marine (shipboard) applications. To verify Lloyd’s Register
certification for a product, visit ni.com/certification and search
for the LR certificate, or look for the Lloyd’s Register mark on
the product.
Caution In order to meet the EMC requirements for
marine applications, install the product in a shielded
enclosure with shielded and/or filtered power and
input/output ports. In addition, take precautions when
designing, selecting, and installing measurement probes
and cables to ensure that the desired EMC performance
is attained.
NI 9997 Getting Started Guide | © National Instruments | 7

Preparing the Environment
Ensure that the environment in which you are using the NI 9997
meets the following specifications.
Operating temperature
(IEC 60068-2-1, IEC 60068-2-2)
-40 °C to 70 °C
Operating humidity
(IEC 60068-2-78)
10% RH to 90% RH,
noncondensing
Pollution Degree 2
Maximum altitude 3,000 m
Indoor use only.
Note Refer to the device datasheet on ni.com/manuals
for complete specifications.
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NI 9997 Pinout
Channel 0
Channel 1
0
5
4
3
2
1
0
5
4
3
2
1
NI 9997 Getting Started Guide | © National Instruments | 9

High-Vibration Application Connections
If your application is subject to high vibration, NI recommends
that you follow these guidelines to protect connections to the
NI 9997:
• Use ferrules to terminate wires to the detachable connector.
• Use the 6-position connector backshell kit (783804-01).
Busbar Configurations
The following sections illustrate typical busbar configurations.
Connecting Multiple Shields/Common Pins to
Ground
The NI 9997 simplifies wiring multiple shields to ground.
10 | ni.com | NI 9997 Getting Started Guide

TC+
TC-
C Series Module or
C Series Thermocouple
TC+
TC-
Ground
Shield
Shield
Channel 0
Isolation
NI 9997
• Attach the ground of the separate C Series module to a
terminal on a channel of the NI 9997.
• Connect the shields to the remaining terminals on the
channel.
NI 9997 Getting Started Guide | © National Instruments | 11

Connecting Multiple Modules to Device Common
C Series Modules
COM
Channel 0
Isolation
NI 9997
Device
Device
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• Attach the C Series Modules COM to a terminal of the
NI 9997 channel.
• Connect the common connection of the device(s) to the
remaining terminals on the channel.
Connecting Multiple Devices to One External
Power Supply
Isolation
External
Power
Supply
+
–
Channel 0
NI 9997
Device 1
Device 4
Device 5
Device 2
Device 3
Channel 1
NI 9997 Getting Started Guide | © National Instruments | 13

• Connect the positive line of the PS to Channel 0 on the
NI 9997.
• Connect the negative line of the PS to Channel 1 on the
NI 9997.
• Connect the positive line of the device(s) to Channel 0 on the
NI 9997.
• Connect the negative line of the device(s) to Channel 1 on the
NI 9997.
NI 9997 Specifications
The following specifications are typical for the range -40 °C to
70 °C unless otherwise noted.
Caution Do not operate the NI 9997 in a manner not
specified in this document. Product misuse can result in
a hazard. You can compromise the safety protection
built into the product if the product is damaged in any
way. If the product is damaged, return it to NI for
repair.
14 | ni.com | NI 9997 Getting Started Guide

Physical Characteristics
Number of channels 2 isolated, 6 terminal channels
Current per channel 11 A, maximum
Screw-terminal wiring
Gauge 0.05 mm2 to 1.5 mm2 (30 AWG
to 14 AWG) copper conductor
wire
Wire strip length 6 mm (0.24 in.) of insulation
stripped from the end
Temperature rating 90 °C minimum
Torque for screw
terminals
0.22 N · m to 0.25 N · m
(1.95 lb · in. to 2.21 lb · in.)
Wires per screw
terminal
One wire per screw terminal;
two wires per screw terminal
using a 2-wire ferrule
NI 9997 Getting Started Guide | © National Instruments | 15

Connector securement
Securement type Screw flanges provided
Torque for screw
flanges
0.2 N · m (1.80 lb · in.)
Ferrules
Single wire 0.25 mm2 to 1.50 mm2
(24 AWG to 16 AWG)
Double wire 0.823 mm2 (18 AWG)
maximum
Weight 137 g (4.8 oz)
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Safety Voltages
Maximum Voltage
Channel-to-earth ground
Continuous 300 Vrms, Measurement
Category II
Isolation Voltages
Channel-to-channel
Continuous 300 Vrms, Measurement
Category II
Withstand 3,000 Vrms, verified by a 5 s
dielectric withstand test
Channel-to-earth ground
Continuous 300 Vrms, Measurement
Category II
Withstand 3,000 Vrms, verified by a 5 s
dielectric withstand test
Measurement Category II is for measurements performed on
circuits directly connected to the electrical distribution system.
NI 9997 Getting Started Guide | © National Instruments | 17

This category refers to local-level electrical distribution, such as
that provided by a standard wall outlet, for example, 115 V for
U.S. or 230 V for Europe.
Caution Do not connect the NI 9997 to signals or use
for measurements within Measurement Categories III
or IV.
Hazardous Locations
U.S. (UL) Class I, Division 2, Groups A,
B, C, D, T4; Class I, Zone 2,
AEx nA IIC T4
Canada (C-UL) Class I, Division 2, Groups A,
B, C, D, T4; Class I, Zone 2, Ex
nA IIC T4
Europe (ATEX) and
International (IECEx)
Ex nA IIC T4 Gc
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Safety and Hazardous Locations Standards
This product is designed to meet the requirements of the
following electrical equipment safety standards for measurement,
control, and laboratory use:
• IEC 61010-1, EN 61010-1
• UL 61010-1, CSA 61010-1
• EN 60079-0:2012, EN 60079-15:2010
• IEC 60079-0: Ed 6, IEC 60079-15; Ed 4
• UL 60079-0; Ed 5, UL 60079-15; Ed 3
• CSA 60079-0:2011, CSA 60079-15:2012
Note For UL and other safety certifications, refer to
the product label or the Online Product Certification
section.
NI 9997 Getting Started Guide | © National Instruments | 19

CE Compliance
This product meets the essential requirements of applicable
European Directives, as follows:
• 2014/35/EU; Low-Voltage Directive (safety)
• 2014/30/EU; Electromagnetic Compatibility Directive
(EMC)
• 94/9/EC; Potentially Explosive Atmospheres (ATEX)
Online Product Certification
Refer to the product Declaration of Conformity (DoC) for
additional regulatory compliance information. To obtain product
certifications and the DoC for this product, visit ni.com/
certification, search by model number or product line, and click
the appropriate link in the Certification column.
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