AMETEK SGA Series User Manual

SGA Series DC

Power Supplies

Operation Manual

M550129-01 Rev AG www.programmablepower.com

About AMETEK

AMETEK Programmable Power, Inc., a unit of AMETEK Electronic Instruments Group (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, Power Ten, and Amrel brand power
supplies and electronic loads.

AMETEK, Inc. is a leading global manufacturer of electronic instruments and electromechanical
devices with annualized sales of $3.6 billion. The company has over 14,000 colleagues working
at more than 120 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

SGA Series DC Power Supplies Operation Manual © 2014, AMETEK Programmable Power, Inc.,
All rights reserved.

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 ACCURACY 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

March 2015, Rev AG

Part Number

M550129-01

Contact Information

Telephone: [phone] (toll free in North America)

858 450 0085 (direct)
Fax: [phone]
Email: [e-mail]

[e-mail]
Web: www.programmablepower.com

M550129-01 Rev AG iii

Product Family: SGA 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 USA, 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

iv M550129-01 Rev AG

v

WARNING!

Hazardous voltages might be present when covers are removed. Qualified
personnel must use extreme caution when servicing this equipment. Circuitry,
test points, and output voltages might be floating with respect to chassis
ground. Do not touch electrical circuits, and use appropriately rated test
equipment. A safety ground wire must be connected from the chassis to the
AC mains input when servicing this equipment.

WARNING!

This equipment contains ESD sensitive input/output connection ports. When
installing equipment, follow ESD safety procedures. Electrostatic discharges
might cause damage to the equipment.

IMPORTANT SAFETY INSTRUCTIONS

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

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

Ensure that the AC mains input ground is connected properly to the chassis safety
ground connection. 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 mains input is de-energized prior to
connecting or disconnecting any cable.

In normal operation from the front panel, the operator does not have access to
hazardous voltages within the chassis. However, depending on the application
configuration, HIGH VOLTAGES HAZARDOUS TO HUMAN SAFETY might be
normally generated on the output terminals. The user must ensure that the output power
lines are labeled properly as to the safety hazards and that any possibility for 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.

M550129-01 Rev AG

WARNING: Electrical Shock Hazard

HAZARD: Strong oxidizer

GENERAL WARNING/CAUTION: Read the accompanying

message for specific information.

BURN HAZARD: Hot Surface Warning. Allow to cool before
servicing.

DO NOT TOUCH: Touching some parts of the instrument without
protection or proper tools could result in damage to the part(s)
and/or the instrument.

TECHNICIAN SYMBOL: All operations marked with this symbol are
to be performed by qualified maintenance personnel only.

ELECTRICAL GROUND: This symbol inside the instrument marks
the central safety grounding point for the instrument.

SAFETY SYMBOLS

vi M550129-01 Rev AG

vii

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.

M550129-01 Rev AG

ABOUT THIS MANUAL AND REGULATORY COMPLIANCE

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

These models have been designed and tested to meet the Electromagnetic Compatibility
directive (European Council directive 2004/108/EC; generally referred to as the EMC
directive) and to the requirements of the Low Voltage directive (European Council
directive 2006/95/EC, 93/68/EEC, dated 22 July 1993). In addition these models have
been found compliant with FCC 47 CFR Part 15, Subpart B107(e) Class A, 109(g)
Class A.

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 Instruction page).

viii M550129-01 Rev AG

CONTENTS

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

1.1 General Description ............................................................................................... 1-1

1.2 Specifications ......................................................................................................... 1-3

1.2.1 Environmental Characteristics .................................................................................. 1-3

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

1.2.3 SGA Series Voltage and Current Specifications ...................................................... 1-7

1.2.4 Physical Characteristics ............................................................................................ 1-8

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

2.1 Inspection ............................................................................................................... 2-1

2.2 Contents of Shipment ............................................................................................ 2-1

2.3 Location and Mounting .......................................................................................... 2-2

2.3.1 Rack Mounting .......................................................................................................... 2-3

2.3.2 K550212-01 ASSEMBLY STEPS (OPTION KIT for 3U models) .............................. 2-4

2.3.3 K550213-01 ASSEMBLY STEPS (OPTION KIT for 6U models) .............................. 2-6

2.3.4 Chassis Removal from Rack .................................................................................... 2-7

2.4 Input/Output Connections ..................................................................................... 2-8

2.5 Wire selection ....................................................................................................... 2-11

2.5.1 Wire Size .................................................................................................................2-11

2.6 Load Considerations ............................................................................................ 2-14

2.6.1 Inductive and STORED-ENERGY Loads ...............................................................2-14

2.7 Outline and Installation Drawings ....................................................................... 2-15

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

3.1 Introduction ............................................................................................................ 3-1

3.1.1 Front/rear Panels ...................................................................................................... 3-1

3.2 Shaft Lock (Option) ................................................................................................ 3-9

3.3 Front Panel Operation .......................................................................................... 3-10

3.3.1 Initial Setup .............................................................................................................3-10

3.3.2 constant-Voltage Mode Operation ..........................................................................3-11

3.3.3 Constant-Current Mode Operation .........................................................................3-12

M550129-01 Rev AG ix

Contents Sorensen SGA Series

3.3.4 Overvoltage Protection ...........................................................................................3-13

3.4 Remote Analog Control Connector (J1) .............................................................. 3-14

3.5 Remote Current Programming ............................................................................ 3-18

3.5.1 Remote Current Programming by Resistance ........................................................3-18

3.5.2 Remote Current Programming by Voltage Source .................................................3-19

3.6 Remote Voltage Programming ............................................................................ 3-20

3.6.1 Remote Voltage Programming by Resistance ........................................................3-20

3.6.2 Remote Voltage Programming by Voltage Source .................................................3-21

3.7 Remote Overvoltage Protection Programming .................................................. 3-22

3.8 Remote Output ON/OFF Control .......................................................................... 3-23

3.8.1 Remote Output ON/OFF by Contact Closure .........................................................3-23

3.8.2 Remote Output ON/OFF Control by External Source .............................................3-23

3.8.3 Remote Shutdown (S/D) .........................................................................................3-24

3.9 Remote Sensing ................................................................................................... 3-25

3.10 Floating and Polarized Output ............................................................................. 3-28

3.11 Parallel and Series Operation .............................................................................. 3-29

3.11.1 Parallel Operation ...................................................................................................3-29

3.11.2 Series Operation .....................................................................................................3-31

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

4.1 Introduction ............................................................................................................ 4-1

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

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

4.2 Calibration and Verification Procedures ............................................................... 4-2

4.2.1 Constant-Current Mode ............................................................................................ 4-3

4.2.2 Constant-Voltage Mode ............................................................................................ 4-3

4.2.3 Resistive-Control Programming Current Sources .................................................... 4-4

4.3 Remote Isolated Analog Interface (Option) Calibration and Verification

Procedures ....................................................................................................................... 4-5

4.3.1 Constant-Current Mode ............................................................................................ 4-5

4.3.2 Constant-Voltage Mode ............................................................................................ 4-6

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

5.1 Introduction ............................................................................................................ 5-1

5.2 Preventive Maintenance ......................................................................................... 5-1

5.3 Fuses ....................................................................................................................... 5-3

x M550129-01 Rev AG

Sorensen SGA Series Contents

LIST OF TABLES

Table 2–1. Maximum AC Current Ratings, PFC Models .............................................. 2-9

Table 2–2. Maximum AC Current Ratings, Non-PFC Models ....................................... 2-9

Table 2–3. Input/Output Connectors ............................................................................ 2-9

Table 2–4. Input Terminal Connections ...................................................................... 2-10

Table 2–5. Output Terminal Connections ................................................................... 2-10

Table 2–6. Recommended Lugs ................................................................................ 2-10

Table 2–7. Recommended Sense Connector Tools ................................................... 2-10

Table 2–8. Minimum Wire Size ................................................................................. 2-11

Table 2–9. Wire Resistance and Voltage Drop, 20°C ................................ ................ 2-13

Table 3–1. Front Panel Controls and Indicators .......................................................... 3-2

Table 3–2. Rear Panel Connectors and Controls, Standard ................................ ........ 3-6

Table 3–3. Rear Panel Connectors and Controls, GPIB Option .................................. 3-7

Table 3–4. Rear Panel Connectors and Controls, Ethernet Option ............................. 3-8

Table 3–5. Analog Control Connector (J1), Designations and Functions ................... 3-17

Table 4.1. Fuse Ratings ................................ .............................................................. 5-3

LIST OF FIGURES

Figure 1-1. Model Number Decoding .......................................................................... 1-2

Figure 2-1. Rack Mount Assembly for 3U Models ....................................................... 2-4

Figure 2-2. Rack Mount Assembly for 6U Models ....................................................... 2-6

Figure 2-3. Diode Connection ................................................................................... 2-14

Figure 2-4. Installation Drawing, 3U Models 10V-30V ................................ ............... 2-16

Figure 2-5. Installation Drawing, 3U Models 40V-600V ............................................. 2-17

Figure 2-6. Installation Drawing, 3U Models 800V-1000V ......................................... 2-18

Figure 2-7. Installation Drawing, 6U Models 20 kW to 30 kW .................................... 2-19

Figure 2-8. Rear Panel, Standard,3U Models 10V-30V ............................................. 2-20

Figure 2-9. Rear Panel, GPIB Option, 3U Models 10V-30V ...................................... 2-21

Figure 2-10. Rear Panel, Ethernet Option, 3U Models 10V-30V................................ 2-22

Figure 2-11. Rear Panel, Standard, 3U Models 40V-600V ........................................ 2-23

Figure 2-12. Rear Panel, GPIB Option, 3U Models 40V-600V .................................. 2-24

Figure 2-13. Rear Panel, Ethernet Option, 3U Models 800V and 1000V ................... 2-25

Figure 2-14. Rear Panel, Standard, 6U Models 20kW-30kW .................................... 2-26

Figure 2-15. Rear Panel, GPIB Option, 6U Models 20kW-30kW ............................... 2-27

Figure 2-16. Rear Panel, Ethernet Option, 6U Models 20kW-30kW .......................... 2-28

Figure 2-17. Instructions for Assembly of AC and DC Covers ................................... 2-29

Figure 3-1. Front Panel Controls and Indicators (3U Model Shown) ............................ 3-1

M550129-01 Rev AG xi

Contents Sorensen SGA Series

Figure 3-2. Rear Panel Interface, Standard, 3U Models 10V-30V ............................... 3-3

Figure 3-3. Rear Panel Interface, GPIB Option, 3U Models 10V-30V .......................... 3-3

Figure 3-4. Rear Panel Interface, Ethernet Option, 3U Models 10V-30V ..................... 3-3

Figure 3-5. Rear Panel Interface, Standard, 3U Models 40V-600V ............................. 3-4

Figure 3-6. Rear Panel Interface, GPIB Option, 3U Models 40V-600V ........................ 3-4

Figure 3-7. Rear Panel Interface, Ethernet Option, 3U Models 800V and 1000V ........ 3-4

Figure 3-8. Rear Panel Interface, Standard, 6U Models 20kW-30kW .......................... 3-5

Figure 3-9. Rear Panel Interface, GPIB Option, 6U Models 20kW-30kW .................... 3-5

Figure 3-10. Rear Panel Interface, Ethernet Option, 6U Models 20kW-30kW ............. 3-5

Figure 3-11. Shaft Lock ............................................................................................... 3-9

Figure 3-12. Analog Control Connector (J1) Pin-Out ................................................. 3-15

Figure 3-13. Remote Current Programming Using Resistance .................................. 3-18

Figure 3-14. Remote Current Programming Using 0-5 VDC or 0-10 VDC Source ..... 3-19

Figure 3-15. Remote Voltage Programming Using Resistance ................................. 3-20

Figure 3-16. Remote Voltage Programming Using 0-5 VDC or 0-10 VDC Source ..... 3-21

Figure 3-17. Remote Overvoltage Programming Using DC Source ........................... 3-22

Figure 3-18. Remote Output ON/OFF Control by Contact Closure ............................ 3-23

Figure 3-19. Remote Isolated Output ON/OFF Using AC or DC Source .................... 3-23

Figure 3-20. Remote Output ON/OFF Using Isolated TTL/CMOS Source ................. 3-24

Figure 3-21. Remote Shutdown Using DC Voltage Source ....................................... 3-24

Figure 3-22. Remote Voltage Sensing Network ........................................................ 3-25

Figure 3-23. Remote Sense Connection at the Load, 10V-800V Models ................... 3-26

Figure 3-24. Remote Sense Connection at the Load, 1000V Model ........................... 3-27

Figure 3-25. Parallel Connection and Remote Sense ................................................ 3-30

Figure 3-26. Series Connection with Anti-Parallel Diodes ......................................... 3-32

Figure 4-1. Potentiometer Locations ........................................................................... 4-7

xii M550129-01 Rev AG

1.1 GENERAL DESCRIPTION

The Sorensen SGA Series are general purpose power supplies designed
specifically for laboratory test and systems applications requiring
programmable DC sources with good performance characteristics, such as
accuracy, regulation, and ripple/noise. These power supplies are constant­current/constant-voltage supplies with an automatic crossover feature.

SECTION 1

OVERVIEW

A variety of user interfaces are available, ranging from manual front panel
control and standard non–isolated remote analog control, to optional GPIB,
Ethernet or isolated remote analog control.

Refer to Figure 1-1 for decoding of the SG Series model number.

M550129-01 Rev AG 1-1

Overview Sorensen SGA Series

Option

Description

Control Options

A: Analog
I: Intelligent

Input Options

C: Input Voltage 208/230 VAC, 3-Phase
D: Input Voltage 380/400 VAC, 3-Phase
E: Input Voltage 440/480 VAC, 3-Phase

Remote Control
Options

0A: No Option
1A: IEEE-488.2 + RS-232C
1C: Ethernet + RS-232C
1D: Isolated Analog Interface
1E: Shaft Locks
2A: Combined Options 1A + 1D
2C: Combined Options 1A + 1E (SGA Only)
2G: Combined Options 1C + 1D
2H: Combined Options 1C + 1E (SGA Only)
2J: Combined Options 1D + 1E (SGA Only)
3C: Combined Options 1A + 1D + 1E (SGA Only)
3G: Combined Options 1C + 1D + 1E (SGA Only)

Process Options

AA: No option
AB: Certificate of Calibration (includes test data)

Modifications

AJ: Front panel dust filter (3U models only)
CV: 400 Hz AC input at 208 VAC for 6U units only and does not

carry CE, CSA or UL certification; (standard in 3U models)
PF: Passive power factor correction (PFC) to 0.9 for 40V to 800V

models; (standard in 10V-30V, 50V, and 1000V models)

SG A 100 X 100 C - 1A AA AJ

Control Designation

A = Analog
I = Intelligent

Voltage

4-15 kW = "X"
20-30 kW = "/"

Current

Modifications

Process Options

Remote Control Options

Input Voltage Options

For units up to 999 V/999 A, voltage and current are represented in numeric format, e.g., “100”

represents 100 V. For units at 1000 V/1000 A and above, the voltage and current are represented
by the format “xKx”, e.g., “1K2” represents 1000 V.

1-2 M550129-01 Rev AG

Figure 1-1. Model Number Decoding

Sorensen SGA Series Overview

Parameter

Specification

Ambient Temperature

Operating

0C to 50C

Storage

-25C to 65C

Cooling

Forced convection with internal, linearly-variable-speed fans; vents on
front, sides and rear; units may be stacked without clearance above or
below.

Humidity

95% maximum, non-condensing, 0C to 50C; 45C maximum wet-bulb
temperature.

Altitude

5,000 ft (1,524 m) operating at full rated output power, derate 10% of
full power for every 1,000 ft (3,048 m) higher; non-operating to 40,000 ft
(12,192m)

Agency Approvals

CE Compliant: Certified to UL/CSA 61010 and IEC/EN 61010-1 by a
NRTL; LVD Categories: Installation Category II, Pollution Degree 2,
Class II Equipment, for Indoor Use Only;

EMC Directive, EN 61326:1998;
Semi-F47 Compliant

Parameter

Specification

Input Power

Voltage

208/230 VAC ±10%, allowed range 187-253 VAC;
380/400 VAC ±10%, allowed range 342-440 VAC;
440/480 VAC ±10%, allowed range 396-528 VAC

Frequency

47 Hz to 63 Hz; 400 Hz at 208 VAC for 3 U models; 400 Hz at
208 VAC for 6U models is an optional modification (“CV” in
model number) and does not carry CE, UL or CSA markings

Configuration

3–phase, 3–wire plus ground; not phase rotation sensitive;
neutral not used.

1.2 SPECIFICATIONS

The following subsections provide environmental, electrical, and physical
characteristics for the SGA Series power supplies.

Note:

Note:

Specifications are subject to change without notice.
The SGA Series power supplies are intended for indoor use only.

Refer to Section 2.3 for use/location requirements.

1.2.1 ENVIRONMENTAL CHARACTERISTICS

1.2.2 ELECTRICAL CHARACTERISTICS

Note:

where the remote sense leads are connected.

M550129-01 Rev AG 1-3

Output voltage accuracy, regulation, and stability specifications are valid at the point

Overview Sorensen SGA Series

Parameter

Specification

Power Factor (at full rated load; 50/60 Hz); contact factory for power factor of specific models

PFC models: 10V-30V, 50V,
1000V, and models with optional
modification, “PF”

0.90, typical, for all AC input ratings; with passive power factor
correction (PFC)

Non-PFC models: 40V-800V

0.75, typical, for 208/230 VAC input;

0.72, typical, for 380/400 VAC input;

0.69, typical, for 440/480 VAC input;
power factor is not solely determined by power supply input

characteristics, but is dependent on the level of DC output
power and interaction with the source impedance of AC mains.

Efficiency

87%, typical, at full load, nominal AC line

Hold-Up Time

1/2 cycle, typical, for loss of all three phases (6.4 ms, typical for
800V/1000V models); 3 cycle, typical, for loss of one phase;
sustained missing phase will result in shutdown of the output.

Rated Output Power

4-15 kW for 3U chassis for 10V-30V models;
5-15 kW for 3U chassis for 40V-1000V models;
20-30 kW for 6U chassis for 40V-600V models;

maximum output power is the product of the rated output
voltage and current; for specific values refer to Section 1.2.3.

Load Regulation (specified for ±100% rated load change, at nominal AC input voltage)

Voltage

±0.05%, maximum, of rated output voltage for 10V- 30V
models;

±0.02%, maximum, of rated output voltage for 40V-1000V
models

Current

±0.1%, maximum, of rated output current

Line Regulation (specified for ±10% change of nominal AC line voltage, at constant load)

Voltage

±0.05%, maximum, of rated output voltage for 10V- 30V
models;

±0.01%, maximum, of rated output voltage for 60V-1000V
models

Current

±0.05%, maximum, of rated output current

Temperature Coefficient

Voltage

±0.02%/C, typical, of rated output voltage

Current

±0.03%/C, typical, of rated output current

Stability

±0.05%, typical, of rated output voltage or current, over 8 hrs at
fixed line, load, and temperature, after 30 min warm-up

Output Voltage Ripple/Noise

Refer to Ripple/Noise specifications in tables of Section 1.2.3.

Load Transient Response

1 ms, typical, to recover within 0.75% of rated output voltage for
load step change of 50% of rated output current

Output Voltage Rise Time

(with rated load, resistive; current
rise time same)

10 ms, maximum, from 10-90% of programming change from
zero to rated output voltage for 10V-30V models;
100 ms, maximum, from 5-95% of programming change from
zero to rated output voltage for 40V-1000V models;
contact factory for values of specific models

1-4 M550129-01 Rev AG

Sorensen SGA Series Overview

Parameter

Specification

Output Voltage Fall Time

(with rated load, resistive; current fall
time same)

10 ms, maximum, from 90-10% of programming change from
rated output voltage to zero for 10V-30V models;

contact factory for values of specific models

Output Voltage Fall Time

(with no load)

50 ms, maximum, from 90-10% of programming change from
rated output voltage to zero for 10V-30V models;

1.5 s, typical, from 100% to 10% of programming change from
rated output voltage to zero for 40V-1000V models;

contact factory for values of specific models

Front Panel Meter

Display Resolution

3.5 digit

Voltage Accuracy

(to actual output)

±0.5%, maximum, of rated output voltage + 1 digit

Current Accuracy

(to actual output)

±0.5%, maximum, of rated output current + 1 digit

Remote Sensing

Connection

Voltage accuracy/regulation specifications apply at the point
where the remote sense leads are connected.

Line Drop

1 V, maximum per line for 10V-20V models;

1.5 V, maximum per line for 30V model;
5%, maximum of rated output voltage per line for models, 40V

to less than 160V;
2%, maximum of rated output voltage per line for models

greater than or equal to 160V;
greater level of line drop is allowed, but output voltage

regulation specifications no longer apply.

Line Drop Effect on Output
Voltage

Rated output voltage applies at the rear panel output terminals,
and line drop voltage subtracts from the voltage available at the
load terminals

Remote Analog Interface

Programming Accuracy

Voltage

±0.25%, maximum, of rated output voltage for 0-5 VDC range,
and ±0.5%, maximum, for 0-10 VDC range

Current

±1.0%, maximum, of rated output current for 0-5 VDC range,
and ±1.2%, maximum, for 0-10 VDC range for 10V-30V models;

±0.8%, maximum, of rated output current for 0-5 VDC range,
and ±1.0%, maximum, for 0-10 VDC range for 40V-1000V
models

Overvoltage Protection (OVP)

±1%, maximum, of rated output voltage

Readback Monitor Accuracy

Voltage
(of actual output value)

±0.5%, maximum, of rated output voltage

Current
(of actual output value)

±1%, maximum, of rated output current

M550129-01 Rev AG 1-5

Overview Sorensen SGA Series

Parameter

Specification

Resistive-Control Programming

Voltage

0–5 k for 0-100% of rated output voltage

Current

0–5 k for 0-100% of rated output current

Voltage-Control Programming

Voltage

0–5 VDC or 0–10 VDC for 0-100% of rated output voltage

Current

0–5 VDC or 0–10 VDC for 0-100% of rated output current

Overvoltage Protection (OVP)

0.25–5.5 VDC for 5-110% or rated output voltage

Remote Control/Monitor Interface

On/Off control via contact closure, 6-120 VDC or 12-240 VAC,
and TTL or CMOS gate; output voltage and current monitors;
output voltage, current, and OVP programming; summary fault
status

Output Isolation

Output Float Voltage

Negative Output Terminal

±300 V(PK), maximum, with respect to chassis ground;
exceeding the limit will be detected as a fault by a protective
supervisory monitor and shutdown of the output will be
executed; this condition will be latched, requiring reset to
resume normal operation.

Isolation of optional Isolated
Analog Interface (J1) to output
negative terminal

1000 V(PK), maximum; Isolated Analog Interface (J1 signals)
are galvanically isolated from negative output terminal;
operation of Isolated Analog Interface signals should be at
SELV safety voltage conditions to chassis ground.

Reference of standard Non­Isolated Analog Interface (J1) to
output negative terminal

The standard Non-Isolated Analog Interface (J1 signals) is
connected to the negative output terminal and, therefore, is not
isolated from the output.

Parallel Operation

Parallel Group

Up to 5 units, of the same voltage rating, may be connected in
parallel for additional output current; specifications apply as for
single unit, with the exception that each additional paralleled
unit will add 0.3% to the output current accuracy. Contact
factory for applications requiring paralleling more than five units.

Series Operation

Series Group

Up to 2 units, of the same current rating, may be connected in
series for additional output voltage; see restrictions in Output
Isolation section.

1-6 M550129-01 Rev AG

Sorensen SGA Series Overview

Rated

Voltage,

VDC

Rated Current, ADC

Ripple/

Noise**

RMS,

mV

Ripple/
Noise*

PK–PK,

mV

4 kW

5 kW

8 kW

10 kW

12 kW

15 kW

0-10††

0-400

N/A

0-800

N/A

0-1200

N/A

20

50

0-15††

0-267

N/A

0-534

N/A

0-801

N/A

20

50

0-20††

N/A

0-250

N/A

0-500

N/A

0-750

20

60

0-30††

N/A

0-167

N/A

0-334

N/A

0-501

20

60

Rated

Voltage,

VDC

Rated Current, ADC

Ripple/

Noise**

RMS,

mV

Ripple/
Noise*

PK–PK,

mV

5 kW

10 kW

15 kW

20 kW

25 kW

30 kW

0-40

0-125

0-250

0-375

0-500†

0-625†

0-750†

20

75

0-50

0-100

0-200

0-300

0-400†

0-500†

0-600†

20

75

0-60

0-83

0-167

0-250

0-333

0-417

0-500

20

75

0-80

0-63

0-125

0-188

0-250

0-313

0-375

20

100

0-100

0-50

0-100

0-150

0-200

0-250

0-300

20

100

0-160

0-31

0-63

0-94

0-125

0-156

0-188

25

150

0-200

0-25

0-50

0-75

0-100

0-125

0-150

25

175

0-250

0-20

0-40

0-60

0-80

0-100

0-120

30

200

0-300

0-17

0-33

0-50

0-67

0-83

0-100

30

200

0-330

0-15

0-30

0-45

0-61

0-76

0-91

30

200

0-400

0-12

0-25

0-38

0-50

0-63A

0-75

40

300

0-500

0-10

0-20

0-30

0-40

0-50

0-60

50

350

0-600

0-8

0-17

0-25

0-33

0-42

0-50

60

350

0-800

0-6.2

0-12.5

0-18.7

0-25†

0-31.2†

0-37.5†

80

500

0-1000

0-5

0-10

0-15

0-20†

0-25†

0-30†

100

650

1.2.3 SGA SERIES VOLTAGE AND CURRENT SPECIFICATIONS

The following tables present the specifications for rated voltage and current, and ripple/noise for
the 10V-1000V models.

* PK-PK ripple/noise, over 20 Hz to 20 MHz bandwidth, is measured across a 1 µF capacitor at

the end of a 6’ load cable with the supply operating at full load and nominal AC line voltage.

** RMS ripple/noise, over 20 Hz to 300 kHz bandwidth, is measured directly across the output

terminals with the supply operating at full load and nominal AC input line voltage.

†

Power level not available in 6U models, but could be produced with paralleled 3U units; up to

75 kW could be produced by paralleling up to five units. Note that paralleling will increase
ripple/noise.

††

Models from 10V-30V are not available in 6U chassis.

M550129-01 Rev AG 1-7

Overview Sorensen SGA Series

Dimensions

3U Models,

10V-30V

3U Models,

40V-1000V

6U Models,

60V-600V

Width

19.00 in (48.26 cm)

19.00 in (48.26 cm)

19.00 in (48.26 cm)

Depth

From inner surface of front panel to maximum protrusion of protective covers at rear
panel; refer to installation drawings for chassis dimensions.

28.09 in (71.35 cm)

25.46 in (64.67 cm)

27.18 in (69.04 cm)

Height

5.25 in (13.34 cm)

5.25 in (13.34 cm)

10.5 in (26.67 cm)

Weight
(nominal)

≤ 65 lb (29 kg), (4 kW, 10V, 15V)
≤ 65 lb (29 kg), (5 kW, 20V, 30V)

≤ 85 lb (39 kg), (8 kW, 10V, 15V)

≤ 85 lb (39 kg), (10 kW, 20V, 30V)
≤ 110 lb (50 kg), (12 kW, 10V, 15V)

≤ 110 lb (50 kg), (15 kW, 20V, 30V)

≤ 60 lb (27 kg), (5 kW)
≤ 75 lb (34 kg), (10 kW)
≤ 90 lb (41 kg), (15 kW)

≤ 140 lb (63 kg), (20 KW)
≤ 155 lb (70 kg), (25 kW)
≤ 170 lb (77 kg), (30 kW)

Shipping
Weight

Contact factory for weights of specific models

1.2.4 PHYSICAL CHARACTERISTICS

1-8 M550129-01 Rev AG

2.1 INSPECTION

Inspect the shipping carton for possible damage before unpacking the unit.
Carefully unpack the equipment. Save all packing materials until inspection is
complete. Verify that all items listed on the packing slips have been received.
Visually inspect all exterior surfaces for broken knobs, connectors, or meters.
Inspect for dented or damaged exterior surfaces. External damage may be an
indication of internal damage. If any damage is evident, immediately contact
the carrier that delivered the unit and submit a damage report. Failure to do
so could invalidate future claims. Direct repair issues to Customer Service at
858-458-0223 (local) or 1-800-733-5427(toll free).

SECTION 2

INSTALLATION

2.2 CONTENTS OF SHIPMENT

Depending on the model, configuration, and options available for your SGA
Series power supply, the ship kit may include additional parts and
accessories.

Minimum items included in the ship kit:

 AMETEK manuals CD-ROM (P/N M550008-01) containing the SGA Series

DC Power Supplies Operation Manual (this manual, P/N M550129-01) and
the SG manual for the digital interface options, IEEE 488.2/RS232 and
Ethernet Programming Manual (P/N M550129-03).

 Sense mating connector:

10V-800V models, (Molex P/N 39-01-4031) with loose contacts (Molex
P/N 39-00-0182).
1000V model, (Molex P/N 39-01-4041) with loose contacts (Molex
P/N 39-01-0182).

 J1 mating connector (Cinch P/N DB25P or equivalent); shipped

attached to rear panel connector, J1.

 Backshell for J1 (DB25) mating connector (Cinch P/N DCH-B-001, or

equivalent).

M550129-01 Rev AG 2-1

Installation Sorensen SGA Series

WARNING!

This unit is intended for installation in a protected environment. Exposure to
conductive contaminants or corrosive compounds/gases that could be ingested
into the chassis could result in internal damage. To reduce the risk of fire or
electrical shock, install the SGA Series unit in a temperature and humidity
controlled indoor area.

CAUTION!

The unit should be provided with proper ventilation. The front, rear and both sides
of the unit should be free of obstructions. To ensure proper airflow, a minimum 4"
clearance from the rear air outlet is required. The unit should not be operated in an
ambient temperature greater than 50°C.

CAUTION!

No user serviceable parts inside; service to be performed by qualified personnel
only.

BURN HAZARD!

Hot Surface Warning. Allow unit to cool before servicing.

 Hardware for input/output terminal power connections:

3U, 4-15 kW, 10V-30V models: 1/2-13UNC-2B x 1.25" long, 4 ea, with
nut, washer, and lockwasher;
3U, 5-15 kW, 40V-600V models: 3/8-16UNC-2B x 1.0”, 2 ea, with nut,
washer, and lockwasher;
3U, 5-15 kW, 800V and 1000V models have studs, 1/4-20UNC-2B,
2 ea, with nut, washer, and lockwasher installed on rear panel;
6U, 20-30 kW: 3/8-16UNC-2B x 0.875", 2 ea, with nut and lockwasher,
for DC output; 1/4-20UNC-2B, 4 ea, with Keps nut for AC input.

 Front panel rack fastener, black screw:

3U, 10V -1000V models: 10-32UNC-2B x 0.5”, 4 ea;
6U, 20-30 kW: 10-32UNC-2B x 0.5”, 8 ea.

Note:

858-458-0223 (local) or 1-800-733-5427 (toll free).

Optional accessories:
890-453-03: Paralleling Cable (for up to 5 units, requires one cable per unit

placed in parallel)
K550212-01: 3U Rack Slides (for 4 kW to 15 kW models)

If any of these parts are missing, contact Customer Service at

K550213-01: 6U Rack Slides (for 20 kW to 30 kW models)
5550568-01: Front panel dust filter - field installation kit - 3U models only
5551082-01: Optional AC input cover kit - 3U models only

2.3 LOCATION AND MOUNTING

Refer to Sections 2.7 for dimensional and installation drawings

2-2 M550129-01 Rev AG

Sorensen SGA Series Installation

2.3.1 RACK MOUNTING

The SGA Series models are designed for mounting in a standard 19-inch
equipment rack compliant to EIA-310. If additional instrumentation is mounted
in the rack, no additional clearance is required above or below the SGA
Series units.

Support the SGA Series unit using appropriate L-brackets or rack mount
slides; suggested slide kits are listed as follows:

Rack Mount Slide Kit (Option):

3U models, 4–15 kW: AMETEK part number K550212-01

6U models, 20–30 kW: AMETEK part number K550213-01

M550129-01 Rev AG 2-3

Installation Sorensen SGA Series

2.3.2 K550212-01 ASSEMBLY STEPS (OPTION KIT FOR 3U MODELS)

Figure 2-1. Rack Mount Assembly for 3U Models

2-4 M550129-01 Rev AG

Sorensen SGA Series Installation

WARNING!

A minimum two-person lift is required for the 3U SGA Series power
supply, which weighs up to 110 lb (50 kg) depending on the model.

Refer to Figure 2-1 for 3U rack mount assembly drawing for the following
instructions:

1. Install the slide sections, 1C , on both sides of the power supply chassis with
screws (three on left side and four on right side). Ensure that the latch spring
orientation is as shown in Note 1 .

2. Install the brackets, 2A and 2B , to the stationary slide sections, 1A , with
the hardware provided by the slide supplier as shown in Note 3 . Ensure that
stopper orientation of slide sections, 1B , is as shown in Note 2 . Adjust the
location of the mounting brackets as required for the particular type of cabinet
vertical rails utilized.

3. Mount the stationary slide sections, 1A , (with brackets already installed) into
the cabinet using appropriate hardware (e.g. bar nuts, cage nuts, clip nuts),
while ensuring that they are level front to back and left to right of the cabinet
rails.

4. Insert power supply chassis with slide sections, 1C , into slide sections, 1B .

5. Secure the front panel of the power supply chassis to the cabinet rack rails
using the screws provided in the ship kit.

M550129-01 Rev AG 2-5

Installation Sorensen SGA Series

2.3.3 K550213-01 ASSEMBLY STEPS (OPTION KIT FOR 6U MODELS)

Figure 2-2. Rack Mount Assembly for 6U Models

2-6 M550129-01 Rev AG

Sorensen SGA Series Installation

WARNING!

A minimum two-person lift is required for the 3U SGA Series power
supply, which weighs up to 110 lb (50 kg) depending on the model.

A minimum three-person lift is required for the 6U SGA Series unit,
which weighs up to 170 lb (77 kg) depending on the model.

WARNING!

A minimum three-person lift is required for the 6U SGA Series power
supply, which weighs up to 170 lb (77kg) depending on the model.

Refer to Figure 2-2 for 6U rack mount assembly drawing for the following
instructions:

1. Install the slide sections, 1B , on both sides of the power supply chassis with screws
(six on left side and seven on right side). Ensure that the section end orientation is as
shown in Note 1 .

2. Install the brackets, 2A and 2B , to the stationary slide sections, 1A , with the
hardware provided by the slide supplier as shown in Note 3 . Ensure that the stopper
orientation is as shown in Note 2 . Adjust the location of the mounting brackets as
required for the particular type of cabinet vertical rails utilized.

3. Mount the stationary slide sections, 1A , (with brackets already installed) into the
cabinet using appropriate hardware (e.g. bar nuts, cage nuts, clip nuts), while
ensuring that they are level front to back and left to right of the cabinet rails.

4. Insert power supply chassis with slide sections, 1B , into slide sections, 1A .

5. Secure the front panel of the power supply chassis to the cabinet rack rails using the
screws provided in the ship kit.

2.3.4 CHASSIS REMOVAL FROM RACK

The slides have a front disconnect feature and lock at full extension. To
disconnect and remove the chassis from the rack, depress the flat steel
spring (located on the slides) inward, and pull the chassis forward. To return
the chassis back into the rack from full extension, depress the flat steel spring
(located on the slides) inward, and push the chassis back.

When the chassis is at full extension, the flat springs are located behind the
front rack rails. Retract the springs with a flat blade screwdriver or similar
device to release from lock-out or to remove the chassis from the rack.

M550129-01 Rev AG 2-7

Installation Sorensen SGA Series

WARNING!

High voltage present at rear panel! Risk of electrical shock. Do not remove
protective covers on AC input or DC output. Refer to qualified service personnel.

WARNING!

The input and output voltages at the rear panel of the unit might be HAZARDOUS
LIVE. When rack-mounting or panel-mounting the unit, suitable safeguards must
be taken by the installer to ensure that HAZARDOUS LIVE voltages are not
OPERATOR accessible. OPERATOR access should only be to the front panel of
the unit.

WARNING!

A safety disconnect device for the AC mains input must be installed so that it is
readily accessible to the user.

WARNING!

A properly sized input overcurrent protection device must be installed at the AC
mains input, either a circuit breaker or fuse having a rating of 25% over the
maximum AC input line currents listed in Table 2–1.

WARNING!

To prevent an electrical shock hazard, a safety ground wire must be connected
from the safety ground stud on the rear panel to the AC mains ground.

CAUTION!

Under no condition should the negative output terminal exceed 300 V to earth
ground. Floating the negative output terminal subjects the internal control circuitry
of the power supply to the same potential as present at the negative output
terminal. In a unit with the standard Non-Isolated Analog Interface, the signals of
control connector, J1, would float at the same potential as the negative output
terminal. Damage might occur if the signals of the Non-Isolated Analog control
connector are connected to an external ground referenced device, due to
unintentional ground loop currents that this connection could generate. To correct
ground loop problems, it is advised to use the optional Isolated Analog Interface in
order to isolate the external signals from the internal control circuitry of the supply.
Refer to Section 1.2.2 of the specifications for additional information.

2.4 INPUT/OUTPUT CONNECTIONS

Refer to Table 2–1 for AC input current requirements and Section 1.2.3 for
output current specifications. Table 2–3 provides information on the external
input and output connections for the SGA Series models. Table 2–4 provides
input connections descriptions, and Table 2–5 provides output connection
descriptions. Refer to Table 2–6 for recommendations on input/output lugs,
and Table 2–7 on crimping and extraction tools for the sense connector pins.

2-8 M550129-01 Rev AG

Sorensen SGA Series Installation

Model Ratings

Input Line Current, A(RMS)

Voltage

Model

AC Input

Option

Code

Input

Voltage,

VAC

5 kW

10 kW

15 kW

20 kW

25 kW

30 kW

40V-1000V

C

208/230

20

39

59

79

98

118

D

380/400

11

22

32

43

54

65

E

440/480

9

19

28

37

47

56

4 kW

8 kW

12 kW

5 kW

10 kW

15 kW

10V-15V

C

208/230

16

32

47

N/A

N/A

N/A D 380/400

9

17

26

N/A

N/A

N/A E 440/480

7

15

22

N/A

N/A

N/A

20V-30V

C

208/230

N/A

N/A

N/A

20

39

59 D 380/400

N/A

N/A

N/A

11

22

32 E 440/480

N/A

N/A

N/A 9 19

28

Model Ratings

Input Line Current, A(RMS)*

Voltage

Model

AC Input

Option

Code

Input

Voltage,

VAC

5 kW

10 kW

15 kW

20 kW

25 kW

30 kW

40V-800V

C

208/230

24

47

71

95

118

142

D

380/400

13

27

40

54

67

81

E

440/480

12

24

36

49

61

73

* AC input current varies depending on actual power factor; refer to specifications section on power
factor

Connector

Function

Connection

L1 – AC, L2 – AC, L3 – AC;
Chassis - GND

AC input power; see Table 2–4

AC mains 3-phase
input

Pos. Bus Bar,
Neg. Bus Bar

DC output power; see Table 2–5

User load

Analog Interface
Connector (J1)

Control interface; see Table 3–5

User controller
Remote Sense Connector

Remote voltage sensing; see Section 3.9

Output load

Parallel In/Out

Parallel operation; see Section 3.11

Master/Slave units

Table 2–1. Maximum AC Current Ratings, PFC Models

Table 2–2. Maximum AC Current Ratings, Non-PFC Models

Table 2–3. Input/Output Connectors

M550129-01 Rev AG 2-9

Installation Sorensen SGA Series

Power Supply Type

Connection

Connection Description

4 kW to 15 kW, 3U

AC Input

Feed-Through terminal block with
compression terminals

20 kW to 30 kW, 6U

AC Input

Bus Bar with holes for 1/4–20 bolts

All 3U and 6U

Chassis Safety Ground

1/4-20 stud

CAUTION!

To prevent damage to the AC input connector of the 3U units, follow torque
specifications, and, if a wire ferrule is used, ensure that it is properly sized
and that it has been crimped with the appropriate ferrule crimping tool.

Power Supply Type

Connection Description

4 kW to 15 kW, 10V-30V models

Bus bars with two holes for 1/2” bolts on each terminal
(POS. and NEG.)

5 kW to 15 kW, 40V-1000V models

40V-600V models: bus bars with single holes for 3/8" bolts
on each terminal (POS. and NEG.)
800V and 1000V models: 1/4-20 studs for each terminal
(POS. and NEG.)

20 kW to 30 kW

Bus bars with single holes for 3/8" bolts for each terminal
(POS. and NEG.)

Manufacturer

Low Current

High Current

Panduit

P, PV, or PN series, or
equivalent

Standard stranded wire: LCA Series, or equivalent
Flexible stranded wire: LCAX Series, or equivalent

Note:

Contact lug manufacturer for recommended crimping tool.

Tool

Manufacturer

Manufacturer P/N

Crimping

Molex

11-01-0197

Extracting

Molex

11-03-0044

Table 2–4. Input Terminal Connections

AC Input Connector for 3U Models

 Recommended torque for the AC input connector screws: 17.7 in-lb to

20.4 in-lb (2 Nm to 2.3 Nm).

 Wire ferrules are recommended, properly sized to match the wire gauge; use

appropriate crimp tool for the ferrule size.

 Wire insulation should be stripped to 5/8”, maximum.
 For more information on the AC input connector, refer to the manufacturer

(Phoenix Contact) part number HDFKV 16 at their website,
www.phoenixcontact.com.

Table 2–5. Output Terminal Connections

Table 2–6. Recommended Lugs

Table 2–7. Recommended Sense Connector Tools

2-10 M550129-01 Rev AG