National Instruments PS-16 User Manual

Power Supply

NI PS-16 Power Supply User Manual

June 2011 372912B-01

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Important Information

Warranty

The NI PS-16 is warranted against defects in materials and workmanship for a period of one year from the date of shipment, as evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace equipment that proves to be defective during the warranty period. This warranty includes parts and labor.

The media on which you receive National Instruments software are warranted not to fail to execute programming instructions, due to defects in materials and workmanship, for a period of 90 days from date of shipment, as evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace software media that do not execute programming instructions if National Instruments receives notice of such defects during the warranty period. National Instruments does not warrant that the operation of the software shall be uninterrupted or error free.

A Return Material Authorization (RMA) number must be obtained from the factory and clearly marked on the outside of the package before any equipment will be accepted for warranty work. National Instruments will pay the shipping costs of returning to the owner parts which are covered by warranty.

National Instruments believes that the information in this document is accurate. The document has been carefully reviewed for technical accuracy. In the event that technical or typographical errors exist, National Instruments reserves the right to make changes to subsequent editions of this document without prior notice to holders of this edition. The reader should consult National Instruments if errors are suspected. In no event shall National Instruments be liable for any damages arising out of or related to this document or the information contained in it.

XCEPT AS SPECIFIED HEREIN, NATIONAL INSTRUMENTS MAKES NO WARRANTIES, EXPRESS OR IMPLIED, AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. CUSTOMER’S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF NATIONAL

NSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER. NATIONAL INSTRUMENTS WILL NOT BE LIABLE FOR DAMAGES RESULTING

FROM LOSS OF DATA, PROFITS, USE OF PRODUCTS, OR INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. This limitation of

the liability of National Instruments will apply regardless of the form of action, whether in contract or tort, including negligence. Any action against National Instruments must be brought within one year after the cause of action accrues. National Instruments shall not be liable for any delay in performance due to causes beyond its reasonable control. The warranty provided herein does not cover damages, defects, malfunctions, or service failures caused by owner’s failure to follow the National Instruments installation, operation, or maintenance instructions; owner’s modification of the product; owner’s abuse, misuse, or negligent acts; and power failure or surges, fire, flood, accident, actions of third parties, or other events outside reasonable control.

Under the copyright laws, this publication may not be reproduced or transmitted in any form, electronic or mechanical, including photocopying, recording, storing in an information retrieval system, or translating, in whole or in part, without the prior written consent of National Instruments Corporation.

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WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS

(1) NATIONAL INSTRUMENTS PRODUCTS ARE NOT DESIGNED WITH COMPONENTS AND TESTING FOR A LEVEL OF RELIABILITY SUITABLE FOR USE IN OR IN CONNECTION WITH SURGICAL IMPLANTS OR AS CRITICAL COMPONENTS IN ANY LIFE SUPPORT SYSTEMS WHOSE FAILURE TO PERFORM CAN REASONABLY BE EXPECTED TO CAUSE SIGNIFICANT INJURY TO A HUMAN.

(2) IN ANY APPLICATION, INCLUDING THE ABOVE, RELIABILITY OF OPERATION OF THE SOFTWARE PRODUCTS CAN BE IMPAIRED BY ADVERSE FACTORS, INCLUDING BUT NOT LIMITED TO FLUCTUATIONS IN ELECTRICAL POWER SUPPLY, COMPUTER HARDWARE MALFUNCTIONS, COMPUTER OPERATING SYSTEM SOFTWARE FITNESS, FITNESS OF COMPILERS AND DEVELOPMENT SOFTWARE USED TO DEVELOP AN APPLICATION, INSTALLATION ERRORS, SOFTWARE AND HARDWARE COMPATIBILITY PROBLEMS, MALFUNCTIONS OR FAILURES OF ELECTRONIC MONITORING OR CONTROL DEVICES, TRANSIENT FAILURES OF ELECTRONIC SYSTEMS (HARDWARE AND/OR SOFTWARE), UNANTICIPATED USES OR MISUSES, OR ERRORS ON THE PART OF THE USER OR APPLICATIONS DESIGNER (ADVERSE FACTORS SUCH AS THESE ARE HEREAFTER COLLECTIVELY TERMED “SYSTEM FAILURES”). ANY APPLICATION WHERE A SYSTEM FAILURE WOULD CREATE A RISK OF HARM TO PROPERTY OR PERSONS (INCLUDING THE RISK OF BODILY INJURY AND DEATH) SHOULD NOT BE RELIANT SOLELY UPON ONE FORM OF ELECTRONIC SYSTEM DUE TO THE RISK OF SYSTEM FAILURE. TO AVOID DAMAGE, INJURY, OR DEATH, THE USER OR APPLICATION DESIGNER MUST TAKE REASONABLY PRUDENT STEPS TO PROTECT AGAINST SYSTEM FAILURES, INCLUDING BUT NOT LIMITED TO BACK-UP OR SHUT DOWN MECHANISMS. BECAUSE EACH END-USER SYSTEM IS CUSTOMIZED AND DIFFERS FROM NATIONAL INSTRUMENTS' TESTING PLATFORMS AND BECAUSE A USER OR APPLICATION DESIGNER MAY USE NATIONAL INSTRUMENTS PRODUCTS IN COMBINATION WITH OTHER PRODUCTS IN A MANNER NOT

EVALUATED OR CONTEMPLATED BY NATIONAL INSTRUMENTS, THE USER OR APPLICATION DESIGNER IS ULTIMATELY RESPONSIBLE FOR VERIFYING AND VALIDATING THE SUITABILITY OF NATIONAL INSTRUMENTS PRODUCTS WHENEVER NATIONAL INSTRUMENTS PRODUCTS ARE INCORPORATED IN A SYSTEM OR APPLICATION, INCLUDING, WITHOUT LIMITATION, THE APPROPRIATE DESIGN, PROCESS AND SAFETY LEVEL OF SUCH SYSTEM OR APPLICATION.

Compliance

Electromagnetic Compatibility Information

This hardware has been tested and found to comply with the applicable regulatory requirements and limits for electromagnetic compatibility (EMC) as indicated in the hardware’s Declaration of Conformity (DoC) designed to provide reasonable protection against harmful interference when the hardware is operated in the intended electromagnetic environment. In special cases, for example when either highly sensitive or noisy hardware is being used in close proximity, additional mitigation measures may have to be employed to minimize the potential for electromagnetic interference.

While this hardware is compliant with the applicable regulatory EMC requirements, there is no guarantee that interference will not occur in a particular installation. To minimize the potential for the hardware to cause interference to radio and television reception or to experience unacceptable performance degradation, install and use this hardware in strict accordance with the instructions in the hardware documentation and the DoC

If this hardware does cause interference with licensed radio communications services or other nearby electronics, which can be determined by turning the hardware off and on, you are encouraged to try to correct the interference by one or more of the following measures:

• Reorient the antenna of the receiver (the device suffering interference).

• Relocate the transmitter (the device generating interference) with respect to the receiver.

• Plug the transmitter into a different outlet so that the transmitter and the receiver are on different branch circuits.

Some hardware may require the use of a metal, shielded enclosure (windowless version) to meet the EMC requirements for special EMC environments such as, for marine use or in heavy industrial areas. Refer to the hardware’s user documentation and the DoC

When the hardware is connected to a test object or to test leads, the system may become more sensitive to disturbances or may cause interference in the local electromagnetic environment.

Operation of this hardware in a residential area is likely to cause harmful interference. Users are required to correct the interference at their own expense or cease operation of the hardware.

Changes or modifications not expressly approved by National Instruments could void the user’s right to operate the hardware under the local regulatory rules.

for product installation requirements.

. These requirements and limits are

The Declaration of Conformity (DoC) contains important EMC compliance information and instructions for the user or installer. To obtain the DoC for this product, visit and click the appropriate link in the Certification column.

ni.com/certification, search by model number or product line,

Contents

About This Manual

Conventions ...................................................................................................................ix

Related Documentation..................................................................................................x

Chapter 1 Getting Started

Unpacking......................................................................................................................1-1

What You Need to Get Started ......................................................................................1-1

Key Features ..................................................................................................................1-1

Power Supply Description .............................................................................................1-2

Output Terminals.............................................................................................1-3

Output Voltage Potentiometer.........................................................................1-4

DC OK LED....................................................................................................1-4

Input Terminals ...............................................................................................1-4

Mounting Equipment .....................................................................................................1-5

Side Mounting Kit ...........................................................................................1-5

Panel Mounting Kit .........................................................................................1-5

Chapter 2 Installation and Configuration

Mounting Orientation and Installation...........................................................................2-1

Wiring The Terminals....................................................................................................2-3

Operating the NI PS-16..................................................................................................2-5

Serial Operation...............................................................................................2-5

Parallel Operation............................................................................................2-6

Two-Phase Power Operation...........................................................................2-6

External Input Protection.................................................................................2-7

Operation in a Sealed Enclosure......................................................................2-7

Cooling ............................................................................................................2-8

Hazardous Risks ..............................................................................................2-8

Serviceable Parts .............................................................................................2-8

Peak Current Capability ..................................................................................2-9

Charging Batteries ...........................................................................................2-9

Back Feeding Loads ........................................................................................2-10

Output Circuit Breakers...................................................................................2-10

Inductive and Capacitive Loads ......................................................................2-11

Contents

Appendix A Specifications

Dimensions and Weight ................................................................................................ A-1

AC Input ........................................................................................................................A-3

Input Current Inrush Surge............................................................................................ A-5

Hold-up Time ................................................................................................................ A-6

Output ............................................................................................................................ A-7

Peak Current Capability .................................................................................. A-8

Efficiency and Power Losses......................................................................................... A-8

Reliability ...................................................................................................................... A-9

Dielectric Strength......................................................................................................... A-10

Used Substances ............................................................................................................ A-11

Environment .................................................................................................................. A-12

Protection Features ........................................................................................................ A-13

Appendix B Technical Support and Professional Services

Index

NI PS-16 Power Supply User Manual viii ni.com

About This Manual

The NI PS-16 Power Supply User Manual describes the features and specifications of the NI PS-16 power supply and contains information about installing the power supply.

Conventions

The following conventions are used in this manual:

» The » symbol leads you through nested menu items and dialog box options

to a final action. The sequence Options»Settings»General directs you to pull down the Options menu, select the Settings item, and select General from the last dialog box.

This icon denotes a note, which alerts you to important information.

This icon denotes a caution, which advises you of precautions to take to avoid injury, data loss, or a system crash.

When this symbol is marked on a product, it denotes a warning advising you to take precautions to avoid electrical shock.

bold Bold text denotes items that you must select or click in the software, such

as menu items and dialog box options. Bold text also denotes parameter names.

italic Italic text denotes variables, emphasis, a cross-reference, or an introduction

to a key concept. Italic text also denotes text that is a placeholder for a word or value that you must supply.

monospace Text in this font denotes text or characters that you should enter from the

keyboard, sections of code, programming examples, and syntax examples. This font is also used for the proper names of disk drives, paths, directories, programs, subprograms, subroutines, device names, functions, operations, variables, filenames, and extensions.

About This Manual

Related Documentation

The following documents contain information that you might find helpful as you read this manual:

• NI PS-15/16/17 Side Mount Brackets Installation Guide

• NI PS-15/16/17 Panel Mount Brackets Installation Guide

• NI PS-15/16/17 Instruction Manual

NI PS-16 Power Supply User Manual x ni.com

Getting Started

This chapter describes the key features of the NI PS-16 power supply and lists the kit contents and mounting equipment you can order from National Instruments.

Unpacking

Carefully inspect the shipping container and the power supply for damage. Check for visible damage to the metal work. If damage appears to have been caused during shipment, file a claim with the carrier. Retain the packing material for possible inspection and/or reshipment.

What You Need to Get Started

Key Features

The NI PS-16 power supply kit contains the following items:

❑ NI PS-16 power supply

❑ Printed NI PS-15/16/17 Instruction Manual

The NI PS-16 includes a power reserve of 20%. This extra current may be used continuously at temperatures up to +45 °C. Additionally, the AC 100–120 V/200–240 V Auto-select input makes worldwide installation and usage very simple.

The key features of the NI PS-16 power supply include the following:

• Small size—Power supply width of only 60 mm

• High efficiency—efficiency up to 91.6%

• Wide temperature range—full output power between –25 °C and +60 °C

• AC 100–120/200–240 V Auto-select input

Chapter 1 Getting Started

– –

Power

Converter

Output

Filter

DC OK

Input Fuse

And

Input Filter

Input

Rectifier

And Inrush

Limiter

115/230 V

Auto Select

Output

Over-Voltage

Protection

Output

Voltage

Regulator

OUT

• 20% output power reserves

• Minimal inrush current surge

Hazardous Voltages Must be mounted in an enclosure by qualified personnel.

This power supply is designed for installation in an enclosure and is intended for general use, such as in industrial control, office, communication, and instrumentation equipment. Do not use this device in aircraft, trains and nuclear equipment, where malfunctioning of the power supply may cause severe personal injury or threaten human life. For more information, refer to Appendix A, Specifications.

Power Supply Description

Figures 1-1 and 1-2 show the functional description and front panel features of the NI PS-16 power supply.

Figure 1-1 provides the functional diagram for the NI PS-16.

NI PS-16 Power Supply User Manual 1-2 ni.com

Figure 1-1. Functional Diagram for the NI PS-16 Power Supply

Chapter 1 Getting Started

DC 24 V 10 A

DC OK

AC 100-120 / 200-240 V

24 - 28V

Power Supply

NI PS-16

Figure 1-2 provides the front panel features of the NI PS-16.

1Output Terminals 2Output Voltage Potentiometer

3 DC OK LED 4Input Terminals

Figure 1-2. Front View of the NI PS-16 Power Supply

Output Terminals

The NI PS-16 has a total of four output terminals, providing two positive (+) output terminals and two negative (–) output terminals. Both positive terminals are wired together internally, and both negative terminals are wired together internally, as shown in Figure 1-1. The output terminals provide 24 V

with 10 A of current.

Chapter 1 Getting Started

Output Voltage Potentiometer

Note You must open the protective flap to turn the potentiometer.

Output voltage from the NI PS-16 is set by the output voltage potentiometer, shown in Figure 1-2. The factory setting output voltage is

24.1 V ±0.2% (at full load when the power supply is cold), and the potentiometer allows the output voltage to be adjusted from 24–28 V on any unit. The output voltage may be adjusted above 28 V by the potentiometer, but voltages beyond 28 V are not guaranteed.

Note Output voltages greater than 28 V are not supported on an NI PS-16 unit.

DC OK LED

This green LED indicates the status of available DC power through the output terminals. If the LED is lit, DC output of greater than 21 V is available for use through the output terminals. If the LED is not lit, DC is not currently available. The DC OK LED is wired internally to the power conversion circuitry prior to the output filtering stage, as shown in Figure 1-1.

Input Terminals

Caution National Instruments recommends that you wire all three input terminals for

proper operation of the NI PS-16.

If the DC OK LED does not light when power is provided through the input terminals, it may indicate a problem with the power supply. Contact National Instruments for more details.

The NI PS-16 power supply derives power through the input terminals on the front panel, shown in Figure 1-2. There are three terminals corresponding to the Neutral input, the Line (or hot) input, and the Protective Earth (PE) input. The NI PS-16 rectifies both single-phase and two-phase AC input. The Neutral input terminal provides a MAINS return path for the input circuitry. The Line input is the primary power input for the supply. The PE input corresponds to an earth ground. As shown in Figure 1-1, the power supply case itself is grounded to the PE input.

NI PS-16 Power Supply User Manual 1-4 ni.com

Mounting Equipment

Contact National Instruments to order the following mounting options for the NI PS-16 power supply. Refer to Table 1-1 for part numbers.

Table 1-1. Mounting Equipment

Part Number Mounting Kit

199430-01 SIDE MOUNTING KIT FOR NI PS-16

199432-01 PANEL MOUNTING KIT FOR NI PS-15/16/17

Side Mounting Kit

The Side Mounting Kit (199430-01) allows you to mount the NI PS-16 on its side to a wall, panel surface, or a DIN-Rail for reduced installation depth. Refer to the NI PS-15/16/17 Side Mount Brackets Installation Guide

ni.com for more information.

Chapter 1 Getting Started

Panel Mounting Kit

The Panel Mounting Kit (199432-01) allows you to mount the NI PS-16 to a wall or panel surface without using a DIN-Rail. Refer to the NI PS-15/16/17 Panel Mount Brackets Installation Guide at more information.

ni.com for

Installation and Configuration

This chapter describes how to prepare and operate the NI PS-16 power supply.

Mounting Orientation and Installation

This section describes the different mounting orientations, and the effect that mounting orientation has on power supply performance.

Mounting orientations other than input terminals on the bottom and output on the top require a reduction in continuous output power or a limitation in the maximum allowed ambient temperature. The amount of reduction influences the lifetime expectancy of the power supply. Therefore, two different derating curves for continuous operation are referenced in Figure 2-1:

• Curve A1—Recommended output current.

• Curve A2—Maximum allowed output current (which results in approximately half the lifetime expectancy for the power supply when following curve A1).

Note National Instruments recommends that the power supply be oriented such that the

output terminals are located on top and the input terminals located on bottom. Figure 2-1 refers to this as the Standard Orientation.

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National Instruments PS-16 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual