AMETEK SFA Series User Manual

SFA Series DC

Power Supplies

Operation Manual

M550292-01 Rev G www.programmablepower.com

About AMETEK

AMETEK Programmable Power, Inc., a Division of AMETEK, Inc., is a global leader in the design
and manufacture of precision, programmable power supplies for R&D, test and measurement,
process control, power bus simulation and power conditioning applications across diverse
industrial segments. From bench top supplies to rack-mounted industrial power subsystems,
AMETEK Programmable Power is the proud manufacturer of Elgar, Sorensen, California
Instruments and Power Ten brand power supplies.

AMETEK, Inc. is a leading global manufacturer of electronic instruments and electromec hanical
devices with annualized sales of $2.5 billion. The Company has over 11,000 colleagues working
at more than 80 manufacturing facilities and more than 80 sales and service centers in the United
States and around the world.

Trademarks

AMETEK is a registered trademark of AMETEK, Inc.
Other trademarks, registered trademarks, and product names are the property of their respective
owners and are used herein for identification purposes only.

Notice of Copyright

SFA Series DC Power Supplies Operation Manual

Inc. All rights reserved.

© 2004-2008 AMETEK Programmable Power,

Exclusion for Documentation

UNLESS SPECIFICALLY AGREED TO IN WRITING, AMETEK PROGRAMMABLE POWER, INC.
(“AMETEK”):

(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY

TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER
DOCUMENTATION.

(b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES, DAMAGES, COSTS OR

EXPENSES, WHETHER SPECIAL, DIRECT, INDIRECT, CONSEQUENTIAL OR INCIDENTAL,
WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION. THE USE OF ANY SUCH
INFORMATION WILL BE ENTIRELY AT THE USER’S RISK, AND

(c) REMINDS YOU THAT IF THIS MANUAL IS IN ANY LANGUAGE OTHER THAN ENGLISH,

ALTHOUGH STEPS HAVE BEEN TAKEN TO MAINTAIN THE ACCURA CY OF THE
TRANSLATION, THE ACCURACY CANNOT BE GUARANTEED. APPROVED AMETEK CONTENT
IS CONTAINED WITH THE ENGLISH LANGUAGE VERSION, WHICH IS POSTED AT
WWW.PROGRAMMABLEPOWER.COM.

Date and Revision

June 2009 Revision G

Part Number

M550292-01

Contact Information

Telephone: [phone] (toll free in North America)
858 450 0085 (direct)
Fax: [phone]
Email: [e-mail]
[e-mail]
Web: www.programmablepower.com

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G

G

Important Safety Instructions

Before applying power to the system, verify that your product is configured properly for your
particular application.

WARNIN

WARNIN

Only qualified personnel who deal with attendant hazards in power supplies, are allowed to perform
installation and servicing.

Ensure that the AC power line ground is connected properly to the Power Rack input connector or
chassis. Similarly, other power ground lines including those to application and maintenance
equipment must be grounded properly for both personnel and equipment safety.

Always ensure that facility AC input power is de-energized prior to connecting or disconnecting any
cable.

In normal operation, the operator does not have access to hazardous voltages within the chassis.
However, depending on the user’s application configuration, HIGH VOLTAGES HAZARDOUS TO
HUMAN SAFETY may be normally generated on the output terminals. The customer/use r must
ensure that the output power lines are labeled properly as to the safety hazards and that any
inadvertent contact with hazardous voltages is eliminated.

Guard against risks of electrical shock during open cover checks by not touching any portion of the
electrical circuits. Even when power is off, capacitors may retain an electrical charge. Use safety
glasses during open cover checks to avoid personal injury by any sudden component failure.

Neither AMETEK Programmable Power Inc., San Diego, California, USA, nor any of the subsidiary
sales organizations can accept any responsibility for personnel, material or inconsequential injury,
loss or damage that results from improper use of the equipment and accessories.

Hazardous voltages may be present when covers are removed. Qualified
personnel must use extreme caution when servicing this equipment.
Circuit boards, test points, and output voltages also may be floating above
(below) chassis ground.

The equipment used contains ESD sensitive ports. When installing
equipment, follow ESD Safety Procedures. Electrostatic discharges might
cause damage to the equipment.

SAFETY SYMBOLS

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Product Family: SFA Series DC Power Supplies

Warranty Period: Five Years

WARRANTY TERMS

AMETEK Programmable Power, Inc. (“AMETEK”), provides this written warranty covering the
Product stated above, and if the Buyer discovers and notifies AMETEK in writing of any defect in
material or workmanship within the applicable warranty period stated above, then AMETEK may,
at its option: repair or replace the Product; or issue a credit note for the defective Product; or
provide the Buyer with replacement parts for the Product.

The Buyer will, at its expense, return the defective Product or parts thereof to AMETEK in
accordance with the return procedure specified below. AMETEK will, at its expense, deliver the
repaired or replaced Product or parts to the Buyer. Any warranty of AMETEK will not apply if the
Buyer is in default under the Purchase Order Agreement or where the Product or any part
thereof:

• is damaged by misuse, accident, negligence or failure to maintain the same as

specified or required by AMETEK;

• is damaged by modifications, alterations or attachments thereto which are not

authorized by AMETEK;

• is installed or operated contrary to the instructions of AMETEK;

• is opened, modified or disassembled in any way without AMETEK’s consent; or

• is used in combination with items, articles or materials not authorized by AMETEK.

The Buyer may not assert any claim that the Products are not in conformity with any warranty
until the Buyer has made all payments to AMETEK provided for in the Purchase Order Agreement.

PRODUCT RETURN PROCEDURE

1. Request a Return Material Authorization (RMA) number from the repair facility (must be
done in the country in which it was purchased):

• In the USA, contact the AMETEK Repair Department prior to the return of the

product to AMETEK for repair:
Telephone: [phone], ext. 2295 or ext. 2463 (toll free North America)

858-450-0085, ext. 2295 or ext. 2463 (direct)

• Outside the United States, contact the nearest Authorized Service Center

(ASC). A full listing can be found either through your local distributor or our
website, www.programmablepower.com, by clicking Support and going to the
Service Centers tab.

2. When requesting an RMA, have the following information ready:

• Model number

• Serial number

• Description of the problem

NOTE: Unauthorized returns will not be accepted and will be returned at the shipper’s expense.
NOTE: A returned product found upon inspection by AMETEK, to be in specification is subject to

an evaluation fee and applicable freight charges.

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FCC NOTICE

This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment.

This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the user will
be required to correct the interference at his own expense.

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M550292-01 Rev G

ABOUT THIS MANUAL

This manual has been written expressly for the Sorensen SFA Series of power
supplies that have been designed and certified to meet the Low Voltage and
Electromagnetic Compatibility Directive Requirements of the European
Community.

Since the Low Voltage Directive is to ensure the safety of the equipment
operator, universal graphic symbols have been used both on the unit itself and
in this manual to warn the operator of potentially hazardous situations (see
Safety page).

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M550292-01 Rev G

CONTENTS

SECTION 1 OVERVIEW.....................................................................1-1

1.1 GENERAL DESCRIPTION...............................................................1-1

1.2 TECHNICAL SPECIFICATIONS ........................................................1-2

1.2.1 Environmental Characteristics................................................................1-2

1.2.2 Electrical Characteristics........................................................................1-3

1.2.3 SFA Series Voltage and Current Specifications.....................................1-4

1.2.4 Physical Characteristics .........................................................................1-5

SECTION 2 INSTALLATION...............................................................2-1

2.1 INSPECTION................................................................................2-1

2.2 CONTENTS OF SHIPMENT.............................................................2-1

2.3 INPUT/OUTPUT CONNECTIONS .....................................................2-2

2.4 LOCATION AND MOUNTING ...........................................................2-3

2.4.1 6U Chassis Removal from Rack.............................................................2-3

2.5 WIRE SELECTION........................................................................2-6

2.5.1 Wire Size................................................................................................2-6

2.6 LOAD CONSIDERATIONS...............................................................2-8

2.6.1 Inductive Loads ......................................................................................2-8

2.7 OUTLINE DRAWINGS....................................................................2-8

SECTION 3 OPERATION ...................................................................3-1

3.1 CONTROLS AND INDICATORS........................................................3-1

M550292-01 Rev G ix

Contents Sorensen SFA Series

3.1.1 Shaft Lock (Option) ................................................................................3-4

3.2 LOCAL OPERATION ..................................................................... 3-4

3.2.1 Floating and Polarized Output................................................................3-5

3.2.2 Initial Setup.............................................................................................3-5

3.2.3 Current Mode Operation.........................................................................3-6

3.2.4 Overcurrent Protection...........................................................................3-6

3.2.5 Analog Control Connector (J1)...............................................................3-7

3.3 REMOTE CURRENT PROGRAMMING............................................3-11

3.4 REMOTE SENSING ....................................................................3-12

3.5 REMOTE OUTPUT ON/OFF CONTROL .........................................3-14

3.6 REMOTE OVERCURRENT SETPOINT............................................3-15

3.7 REMOTE SHUTDOWN (S/D) .......................................................3-16

3.8 MASTER/SLAVE OPERATION......................................................3-16

3.8.1 Parallel Operation.................................................................................3-16

SECTION 4 VERIFICATION AND CALIBRATION..............................4-1

4.1 INTRODUCTION ...........................................................................4-1

4.1.1 Verification and Calibration Cycle ..........................................................4-1

4.1.2 Preparation.............................................................................................4-1

4.2 STANDARD VERIFICATION AND CALIBRATION PROCEDURE.............. 4-2

4.2.1 Current Mode .........................................................................................4-2

4.2.2 Resistor Programming Current Sources ................................................4-3

4.3 ISOLATED ANALOG (OPTION) VERIFICATION AND CALIBRATION

PROCEDURE...............................................................................4-3

4.3.1 Current Mode .........................................................................................4-4

SECTION 5 MAINTENANCE..............................................................5-1

5.1 INTRODUCTION ...........................................................................5-1

5.2 PREVENTIVE MAINTENANCE.........................................................5-1

5.3 FUSES .......................................................................................5-3

M550292-01 Rev G

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Sorensen SFA Series Contents

LIST OF TABLES

Table 2–1. 5kW to 15kW and 20kW to 30kW Series Input/Output Connectors..................2-4

Table 2–2. Input Connections.............................................................................................2-4

Table 2–3. Output Connections ..........................................................................................2-4

Table 2–4. Minimum Wire Size ...........................................................................................2-6

Table 2–5 Wire Resistance and Voltage Drop....................................................................2-7

Table 2–6 Maximum AC Current Ratings ...........................................................................2-8

Table 2–7 Recommended Lugs..........................................................................................2-8

Table 2–8. Recommended Sense Connector Tools ...........................................................2-8

Table 3–1. ANALOG CONTROL Connector (J1), Designations and Functions................3-10

Table 5–1. Recommended Annual Inspection....................................................................5-2

Table 5–2. Fuse Values......................................................................................................5-3

LIST OF FIGURES

Figure 1-1. Model Number Decoding..................................................................................1-1

Figure 2-1. SFA Series Outline Drawing, 3U Models, 5kW to 15kW...................................2-9

Figure 2–2. SFA Series Outline Drawing, 6U Models, 20kW to 30kW ..............................2-10

Figure 3-1. Front Panel Controls and Indicators (3U model shown)...................................3-1

Figure 3-2. Rear Panel Connectors (3U model shown) ......................................................3-3

Figure 3-3. Shaft Lock.........................................................................................................3-4

Figure 3-4. ANALOG CONTROL Connector (J1) Pin-out...................................................3-8

Figure 3–5. Remote Current Programming Using Resistance..........................................3-11

Figure 3–6. Remote Current Programming Using 0-5 VDC or 0-10 VDC Voltage Source3-12

Figure 3–7. Remote Sensing Operation at the Load * ......................................................3-13

Figure 3–8. Remote On/Off Control by Contact Closure ...................................................3-14

Figure 3–9. Remote On/Off Using Isolated AC or DC Voltage Source.............................3-14

Figure 3–10. Remote On/Off Using Isolated TTL/CMOS Voltage Supply.........................3-15

Figure 3–11. Remote Overcurrent Set Using DC Voltage Source....................................3-15

Figure 3–12. Remote Shutdown Using DC Voltage Source..............................................3-16

Figure 3–13. Master/Slave Connection.............................................................................3-17

Figure 4-1. Precision Current Shunt....................................................................................4-2

Figure 4-2. Potentiometer Locations...................................................................................4-5

M550292-01 Rev G

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M550292-01 Rev G xii

1.1 GENERAL DESCRIPTION

The Sorensen SFA Series power supplies are designed specifically for high
power laser driver applications requiring variable DC current sources with fast
output response times.

SECTION 1

OVERVIEW

A variety of user interfac es are available, ranging from man ual front–panel co ntrol
and standard non–isolated remote analog control, to optional GPIB or isolated
remote analog control.

NOTE: The SFA Series power su pplies a re not designed for series operation and
therefore must not be used as such.

Figure 1-1 decodes the SFA Series model number.

Figure 1-1. Model Number Decoding

M550292-01 Rev G 1-1

Sorensen SFA Series Overview

1.2 TECHNICAL SPECIFICATIONS

The following sections provide environmental, electrical, and physical
characteristics for the SFA Series power supplies.

Note: Specifications are subject to change without notice.
Note: The SFA Series power supplies are intended for indoor use only. Please

refer to Section 2.4 for use/location requirements.

1.2.1 ENVIRONMENTAL CHARACTERISTICS

Parameter Specification

Temperature Coefficient
Ambient Temperature

Operating
Storage

Cooling

Humidity

Altitude

0.03%/°C of maximum output current rating for current set point.

0 to 50°C

-25° to 65°C
Internal fans; vents on sides and rear. (Units may be stacked without

clearance above or below).
95% maximum, non-condensing, 0 to 50°C; 45°C maximum wet-bulb

temperature
Operating full power available up to 5,000 feet (1,524m),

derate 10% of full power for every 1,000 feet higher
non-operating to 40,000 feet (12,192m)

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