AMETEK CW-P User Manual

CW-P SERIES

PROGRAMMABLE

AC POWER SOURCE

Operation Manual

October 2013 Document No. M161691-01 Rev K

This manual covers models:

CW 801P
CW 1251P
CW 2501P
CW 801P–H
CW 1251P–H
CW 2501P–H
CW 801P–V
CW 1251P–V
CW 2501P–V

Contact Information

Telephone: [phone] (toll free in North America)
858 450 0085 (direct)
Fax: [phone]
Email:
Domestic Sales: [e-mail]
International Sales: [e-mail]
Customer Service: [e-mail]

Web: 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 electromechanical
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

CW-P Series Programmable AC Power Source, Operation Manual

Power, Inc. All rights reserved.

© 2010 AMETEK Programmable

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

October 2013 Revision K

Part Number

M161691-01

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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ii

WARNING

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.

WARNING

The equipment used contains ESD sensitive 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 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/user 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.

SAFETY SYMBOLS

iii

Product Family: CW801P, CW1251P, CW2501P, CW801P-H, CW1251P-H,

CW2501P-H, CW801P-V, CW1251P-V, CW2501P-V

Warranty Period: One Year

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.

iv

CONTENTS

SECTION 1 INTRODUCTION ............................................................. 0-1

SECTION 2 SPECIFICATIONS .......................................................... 1-1

2.1 Output ................................................................................................... 1-1

2.2 Measurement ....................................................................................... 1-3

2.3 Input ..................................................................................................... 1-5

2.4 Protection ............................................................................................. 1-6

2.5 Rear Panel Connections....................................................................... 1-6

2.6 General ................................................................................................. 1-6

2.7 Options and Accessories ...................................................................... 1-7

SECTION 3 INSTALLATION .............................................................. 2-1

3.1 Unpacking ............................................................................................ 2-1

3.2 Wire Gauge Selection .......................................................................... 2-2

3.3 Mounting Instructions ........................................................................... 2-5

3.4 Cooling ................................................................................................. 2-5

3.5 Power In Connections ........................................................................ 2-10

3.5.1 Single–Phase Supply Connections ......................................... 2-10

3.5.2 Split-Phase Supply Connections 120–0–120V ....................... 2-11

3.5.3 Three–Phase Supply Connections ......................................... 2-11

3.6 Power Out Connections ...................................................................... 2-12

3.7 Sense Connections ............................................................................ 2-13

Operation Manual v

Contents Elgar CW-P Series

3.8 Remote Control Signal ........................................................................ 2-15

3.8.1 Analog Amplitude Control ........................................................ 2-15

3.8.2 Lock to External Frequency Source ........................................ 2-15

3.8.3 Sync Output Pulse ................................................................... 2-16

3.9 Master/Slave Configurations ............................................................... 2-16

3.9.1 Setup for Single–Phase, Two Units ......................................... 2-17

3.9.2 Setup for Three–Phase, Two Units per Phase ........................ 2-20

SECTION 4 OPERATION .................................................................. 3-1

4.1 CW Front Panel Controls and Indicators .............................................. 3-1

4.2 Front Panel Overview ............................................................................ 3-4

4.3 Power Up .............................................................................................. 3-5

4.4 Programmed Frequency Steps ............................................................. 4-6

SECTION 5 PROGRAMMING ............................................................ 4-1

5.1 Programming the CW Via the Front Panel ............................................ 4-1

5.1.1 VOLTAGE/POWER Section ...................................................... 4-2

5.1.2 CURRENT/FREQUENCY Section ............................................. 4-2

5.2 Measurement Operations ..................................................................... 4-2

5.2.1 Supply Measurements on the Left Display ................................ 4-2

5.2.2 Supply Measurements on the Right Display .............................. 4-3

5.3 Menu Operations .................................................................................. 4-4

5.3.1 Self Test .................................................................................... 4-5

5.3.2 Set GPIB Port ............................................................................ 4-5

5.3.3 Specify Current Limit Type ........................................................ 4-6

5.3.4 Specify Shutdown Delay ............................................................ 4-6

5.3.5 Specify Program Keys Locked Mode ........................................ 4-6

5.3.6 Store Present Machine Settings ................................................ 4-6

5.3.7 Recall Machine Settings ............................................................ 4-7

5.3.8 Specify Relay State After Power Up Initialization ...................... 4-7

5.3.9 Clock Direction .......................................................................... 4-7

5.3.10 Analog Input State .................................................................... 4-7

vi Operation Manual

Elgar CW-P Series Contents

vii

5.3.11 RMS Voltage Loop .................................................................. 4-8

5.3.12 Phase A Offset ........................................................................ 4-8

5.3.13 Phase B Offset ........................................................................ 4-8

5.3.14 Phase C Offset ........................................................................ 4-8

5.3.15 Slave Channel ......................................................................... 4-8

5.3.16 Slave Address ......................................................................... 4-8

5.3.17 Slave Configuration ................................................................. 4-8

SECTION 6 MAINTENANCE .............................................................. 5-1

6.1 Periodic Service .................................................................................... 5-1

6.2 Fuse Replacement ............................................................................... 5-1

LIST OF FIGURES

Figure 1–1 ContinuousWave Front Panel (Model CW 801P) ...................... 1-1

Figure 3–1 Slide Mounting ........................................................................... 3-5

Figure 3–2 Mounting Dimensions, Front and Rear Views

(CW 801P and CW 1251P) ....................................................... 3-6

Figure 3–3 Mounting Dimensions, Front and Rear Views (CW 2501P) ....... 3-7

Figure 3–4 Mounting Dimensions, Top and Side Views

(CW 801P and CW 1251P) ....................................................... 3-8

Figure 3–5 Mounting Dimensions, Top and Side Views (CW 2501P) ........ 3-9

Figure 3–6 Input Power Connections ........................................................ 3-10

Figure 3–7 Output Power Connections ...................................................... 3-12

Figure 3–8 Output Voltage Sensing Configuration .................................... 3-13

Figure 3–9 Sense Connections ................................................................. 3-14

Figure 3–10 M/S IN Connector .................................................................... 3-15

Figure 3–11 Wiring Diagram for One Phase, Master/Slave Configuration .. 3-17
Figure 3–12 Wiring Diagram fo r Three Phase, Master/Slave Configuration 3-20

Figure 4–1 Front Panel Controls (CW 801P) ............................................... 4-1

Operation Manual

Contents Elgar CW-P Series

LIST OF TABLES

Table 3–1 Recommended Wire Gauge Selection Guide ............................... 2-2

Table 3–2 Recommended Cables ............................................................... 2-11

Table 6–1 Replacement Fuses ...................................................................... 5-1

viii Operation Manual

SECTION 0

INTRODUCTION

Elgar's ContinuousWave™ (CW) Series power sources deliver 800 VA or 1250 VA in a
2U high (3.5 inches), and 2500 VA in a 5.25–inch benchtop or rackmount chassis.
Higher power and multiphase can be achieved by paralleling and multiphase
interconnection. This requires optional slave cables. The switchmode Power Factor
Corrected (PFC) input stage allows a wide range of input voltage and maximizes the
power available from a wall outlet.

The CW series units are available in manual and programmable versions. This
operation manual covers the programmable versions only.

Voltage, current, and frequency settings are quickly adjusted from the front panel
encoders. In addition, the sources can be programmed remotely from the rear panel
GPIB, RS-232, or analog port. The output is protected against overvoltage, overcurrent,
and overtemperature conditions. A two-speed fan results in quieter operation at lower
power levels.

Figure 1–1 ContinuousWave Front Panel (Model CW 801P)

Key features of the CW Series AC power sources include:

• High performance/value design

• 800, 1250, and 2500 VA units available

• Low profile 3.5" rack height required for up to 1250 VA;

5.25" rack height required for 2500 VA

• Bench top or rack mount (optional slides available)

Operation Manual 0-1

Introduction Elgar CW-P Series

• 1 phase 45 to 500 Hz AC output; 45-1000 Hz with H–Option.
Units may be connected in multiphase configuration and/or paralleled for higher
powers. (Consult factory for more than two units paralleled.) Multiphase/paralleling
cables are optional.

• Transformer coupled output with disconnect relays

• 0 to 135V and 0 to 270V ranges; 0 to 155V and 0 to 310V ranges with V–Option

• CW 801P and CW 1251P versions have universal output socket on front panel.

All units have output power available at rear of unit.

• Remote sense leads for accurate output voltage

• Input PFC provides maximum utilization of available outlet current and wide range of

input voltage and frequency

• CE mark

• UL/CUL (consult factory for availability)

• GPIB and RS-232 control

• Two large, 7-segment LED, 4-digit displays on front panel

• Set volts, overvoltage, frequency, current, and overcurrent by two front panel

encoders

• Measure voltage, wattage, VA, power factor, current, peak current, and crest factor

• Display overvoltage, frequency, and overcurrent setting

• Over current shutdown or constant current mode menu-selectable

• Enable/disable output voltage rms loop menu-selectable

• Sync in, clock out, and analog programming of output voltage available through rear

panel connector. These items are menu-selectable.

• Front panel lockout; measurement active

• Stored settings including: Power up to previous front panel setting or 0V

• 2-speed fan for low noise

• Side air intake, exhaust to rear

• All connectors on rear

(output power also available at front for CW 801P and CW 1251P)

• Chassis depth 20" (front panel and rear connectors add additional depth)

• W ill fit in 24" RETMA rack system

• 1-year calibration interval, covers on soft calibration

0-2 Operation Manual

1.1 Output

SECTION 1

SPECIFICATIONS

POWER

CW 801P 800 VA
CW 1251P 1250 VA
CW 2501P 2500 VA
Power Factor of Load 0 lag to 0 lead
Phase All models single phase output

VOLTAGE

Ranges

Accuracy ±0.1% of full scale <100 Hz, ±0.2% of full scale ≥100 Hz

Resolution 0.1 VRMS

0 to 135 VRMS or 0 to 270 VRMS, user selectable
V–Option: 0 to 155 VRMS or 0 to 310 VRMS, user
selectable

at >5 VRMS output
H–Option: ± 0.3% of full scale >500 Hz

AC Noise Level CW 801/1251P: <50 mVRMS typical in low-voltage range

<85 mVRMS typical in high-voltage range
CW 2501P: <100 mVRMS typical in low-voltage range

<170 mVRMS typical in high-voltage range
H–Option/V–Option:

CW 801/1251P: <75 mVRMS typical in low-voltage range
<125 mVRMS typical in high-voltage range

CW 2501P: <125 mVRMS typical in low-voltage range
<225 mVRMS typical in high-voltage range

Operation Manual 1-1

Specifications Elgar CW-P Series

0.65% maximum up to 60 Hz; add 0.05%/10 Hz from 60 Hz

Option: 0.5%, typical up to 60Hz; add 0.05% from >60Hz to

100Hz; add 0.5%/100Hz from >100Hz up to 3.7%; increasing

CW 1251P(–H)

9.4 ARMS (135 VAC range), 4.7 ARMS (270 VAC range)

CW 1251P–V

8.2 ARMS (155 VAC range), 4.1 ARMS (310 VAC range)

≤500 Hz; ±1.0%

Total Harmonic
Distortion

to 100 Hz; add 0.4%/100 Hz from >100 Hz
H-

to 6% at 10% of full-scale voltage, 100% full-scale current,
and full-scale frequency

Amplitude Stability ±0.05% of full scale over 8 hours at constant line, load and

temperature after 15 minute warm-up typical

Load Regulation ±0.1% full scale voltage for full resistive load to no load

(<10 mVRMS typical, measured at point of sense)

Line Regulation ±0.1% of full scale voltage for a ±10% line change from

nominal line voltage
(<5 mVRMS typical, measured at point of sense)

Remote Voltage Sense 5 VRMS total lead voltage drop

CURRENT

CW 801P(–H) 6.0 ARMS (135 VAC range), 3.0 ARMS (270 VAC range)

CW 2501P(–H) 18.6 ARMS (135 VAC range) , 9. 3 AR MS (270 VAC range)
CW 801P–V 5.2 ARMS (155 VAC range), 2.6 ARMS (310 VAC range)

CW 2501P–V 16.2 ARMS (155 VAC range), 8.1 AR M S ( 310 VAC range)
Accuracy ±0.5% of full scale typical; for linear loads and

>0.12 ARMS for CW 801P, >0.19 ARMS for CW 1251P,
>0.37 ARMS for CW 2501P

H–Option/V–Option: ±0.75% of full scale and
of full scale and >500Hz

Resolution 0.01 ARMS

FREQUENCY

Range 45 to 500 Hz (45 to 1000 Hz for H-Option)
Accuracy ±0.02% maximum
Resolution 0.1 Hz, 0.01 Hz for remote programming

1-2 Operation Manual

Elgar CW-P Series Specifications

PHASE

Range -359 to +359 degrees

Accuracy Within 100 microseconds of equivalent angle
Resolution 1 degree

Positive phase indicates time lag from reference

1.2 Measurement

VOLTAGE

Range 0 to 270 VRMS; V–Option: 0 to 310 VRMS
Accuracy ±0.1% of range <100 Hz; ±0.2% of range ≥100Hz;

Resolution 0.1 VRMS

CURRENT*

at >5 VRMS output; measured at point of remote sense
H-Option: ±0.3% of range >500 Hz

Range
CW 801P 0 to 6.0 ARMS
CW 1251P 0 to 9.4 ARMS
CW 2501P 0 to 18.6 ARMS
Accuracy ±0.5% of range typical; for linear loads and

>0.12 ARMS for CW 801P, >0.19 ARMS for CW 1251P,
>0.37 ARMS for CW 2501P

H–Option/V–Option: ±0.75% of range and ≤500 Hz;
±1.0% of range and >500 Hz

Resolution 0.01 ARMS

PEAK INSTANTANEOUS CURRENT*

Range
CW 801P 0 to 25A
CW 1251P 0 to 35A
CW 2501P 0 to 70A
Accuracy ±2% of range typical; at >2% current range
Resolution 0.1A

Operation Manual 1-3

Specifications Elgar CW-P Series

(Available in Remote Mode only)

PEAK INRUSH CURRENT*

Range
CW 801P 0 to 25A
CW 1251P 0 to 35A
CW 2501P 0 to 70A
Accuracy ±2% of range, typical; at >2% of RMS current range
Resolution 0.1A

FREQUENCY

Range 45 to 500 Hz

H-Option: 45 to 1000 Hz
Accuracy ±0.02% of value
Resolution of Display 0.1 Hz

POWER*

Range
CW 801P 0 to 800W
CW 1251P 0 to 1250W
CW 2501P 0 to 2500W
Accuracy ±2% of range for linear loads, typical
Resolution 1W

APPARENT POWER*

Range
CW 801P 0 to 800 VA
CW 1251P 0 to 1250 VA
CW 2501P 0 to 2500 VA
Accuracy ±2% of range for linear loads, typical
Resolution 1 VA

1-4 Operation Manual

Elgar CW-P Series Specifications

801P, >68% typical;

POWER FACTOR*

Range 0 to 1
Accuracy ±4% of range for linear loads, typical; at >10% of power

Resolution 0.01

CREST FACTOR*

Range 0 to 3.5
Accuracy ±5% of range, typical; at 10% of RMS current range
Resolution 0.01

range

1.3 Input

VOLTAGE AND FREQUENCY

CW 801P 90 to 264 VRMS, 47 to 63 Hz, single-phase
CW 1251P 103 to 264 VRMS, 47 to 63 Hz, single-phase
CW 2501P 180 to 264 VRMS, 47 to 63 Hz, single-phase

CURRENT

CW 801P(–H)(–V) 13.5 ARMS, maximum at 90 VRMS
CW 1251P(–H)(–V) 17.7 ARMS , maximum at 103 VRMS
CW 2501P(–H)(–V) 19.7 ARMS , maximum at 180 VRMS

POWER FACTOR

EFFICIENCY

*Note: In a parallel system, the current/power displayed on the master unit is the sum
of all units in the system.

>0.99 typical at full load nominal line

>73% typical at full load
H–Option/V–Option at 1,000 Hz: CW

CW 1251P, >70% typical; CW 2501P, >72% typical

Operation Manual 1-5