PowerTen 3300 User Manual

January 11, 2002 Document No. M520086-01 Rev A

DC Power Supplies

3300 Series

Operation Manual

PowerTen

9250 Brown Deer Road
San Diego, CA 92121-2294
1-800-978-6680
Tel: [phone]
Fax: [phone]
Email: [e-mail]
www.powerten.com

©2002 by PowerTen. This document contains information proprietary to PowerTen. The information contained
herein is not to be duplicated or transferred in any manner without prior written permission from PowerTen.

Safety Notice

Before applying power to the system, verify that t he unit is configured properly for the user's
particular application.

The 3300 series of power supplies is intended for rack mounted application only. Use of the
power supplies outside of a rack mount enclosure will expose the user to hig h voltage and/or
high current sources. Extreme caution must be used under these circumstances.

The analog control inputs (connectors J1 and J2) on t he rear panel are referenced to the
negative output of the power supply. Grounding t he positive output of the power supply or
biasing the output of the supply above chassis potential will cause these inputs (along with the
output of the supply) to have a potentially hazardous offset voltage. Exercise caution under
these conditions. Under no circumstances should the output of the supply be biased more than
500 volts from chassis potential.

Installation and service must be performed only by properly trained and qualified
personnel who are aw are of deal ing with attendant hazards. This incl udes si mple tasks
such as fuse verification.

Ensure that the AC power line ground is connected properly to the unit input connector
or chassis. Similarly, other power ground l i nes i ncl uding those to application
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 disconnect ing
the input/output power cables.

Warning: Lethal voltages may be present inside the power supply even when the AC input

voltage is disconnected. Only properly trained and qualified personnel should
remove covers and access the inside of the power supply.

During normal operation, the operat or 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 generated norm ally on the out put terminals.
Ensure that the output power lines are labeled properly as to the safety hazards and that any
inadvertent contact with hazardous voltages is eliminated.

Due to filtering, t he unit has high leakage current to t he chassis. Therefore, it is essential t o
operate this unit with a safety ground.

This unit is designed to be permanently connected to t he power source and as such m ust have
a readily accessible disconnect device incorporated in the fixed wiring.

After the unit has been operating for some time, the m et al near the rear of the unit may be hot
enough to cause injury. Let the unit cool before handling.

These operating instructions form an integral part of the equipment and must be available to the
operating personnel at all times. All t he safety instructions and advice notes are to be followed.

Neither Power Ten nor any of the subsidiary sales organizations can accept r esponsibilit y for
personal, material or consequential inj ur y, loss or dam age that results from im pr oper use of the
equipment and accessories.

M520086-01 ii

SERVICE SAFETY NOTICES

WARNING!

HAZARDOUS VOLTAGES IN EXCESS OF 480 V
RMS, 700 V PEAK MAY BE PRESENT WHEN
COVERS ARE REMOVED. QUALIFIED
PERSONNEL MUST USE EXTREME CAUTION
WHEN SERVICING THIS EQUIPMENT. CIRCUIT
BOARDS, TEST POINTS, AND OUTPUT
VOLTAGES MAY BE FLOATING ABOVE
CHASSIS GROUND.

WARNING!

TO GUARD AGAINST RISK OF ELECTRICAL
SHOCK DURING OPEN COVER CHECKS, DO
NO TOUCH ANY PORTION OF THE
ELECTRICAL CIRCUITS. EVEN WHEN THE
POWER IS OFF, CAPACITORS CAN RETAIN AN
ELECTRICAL CHARGE. USE SAFETY
GLASSES DURING OPEN COVER CHECKS TO
AVOID PERSONAL INJURY BY ANY SUDDEN
FAILURE OF A COMPONENT.

WARNING!

SOME CIRCUITS ARE LIVE EVEN WITH THE
FRONT PANEL SWITCH TURNED OFF.
SERVICE, FUSE VERIFICATION, AND
CONNECTION OF WIRING TO THE CHASSIS
MUST BE ACCOMPLISHED AT LEAST FIVE
MINUTES AFTER POWER HAS BEEN REMOVED
VIA EXTERNAL MEANS; ALL CIRCUITS AND/OR
TERMINALS TO BE TOUCHED MUST BE
SAFETY GROUNDED TO THE CHASSIS.

WARNING!

QUALIFIED SERVICE PERSONNEL NEED TO
BE AWAR E T HAT SO M E H EAT SI N KS ARE NO T
AT GROUND, BUT AT HIGH POTENTIAL.

M520086-01 iii

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 inter ference 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 equipm ent in a residential area is
likely to cause harmful interference in which case
the user will be required to correct the interf erence
at his own expense.

M520086-01 iv

About This Manual

This manual has been written expressly for the Power Ten 3300 Series of power supplies.

SAFETY SYMBOLS

CAUTION Protective Conductor Terminal
Risk of Electrical Shock

CAUTION Alternating Current (AC)
Refer to Accompanying Documents

M520086-01 v

TABLE OF CONTENTS

Chapter 1 DESCRIPTION OF EQUIPMENT____________________________________ 1-1

1.1 PURPOSE AND CAPABILITIES _______________________________________________ 1-1

1.2 TECHNICAL CHARACTERISTICS_____________________________________________ 1-1

Chapter 2 INSTALLATION __________________________________________________2-1

2.1 INSPECTION_______________________________________________________________2-1

2.2 INPUT/OUTPUT CONNECTORS ______________________________________________2-1

2.3 LOCATION AND MOUNTING ________________________________________________2-1

2.4 CHECKOUT AND PRELIMINARY ADJUSTMENTS ______ Error! Bookmark not defined.

Chapter 3 OPERATING INSTRUCTIONS ______________________________________3-4

3.1 CONTROLS AND INDICATORS_______________________________________________ 3-4

3.1.1 Local Operation ________________________________________________________________ 3-4

3.1.2 Remote Current Programming _____________________________________________________ 3-7

3.1.3 Remote Voltage Programming _____________________________________________________ 3-7

3.1.4 Remote Sensing ________________________________________________________________ 3-8

3.1.5 Remote Output On/Off Control_____________________________________________________ 3-8

3.1.6 Auto-Parallel Operation __________________________________________________________ 3-9

3.1.7 Auto-Series Operation ___________________________________________________________ 3-9

3.1.8 Auto-Tracking Operation _________________________________________________________ 3-9

3.1.9 Output overvoltage Protection ____________________________________________________ 3-10

Chapter 4 MAINTENANCE AND CALIBRATION _______________________________ 4-1

4-1. INTRODUCTION ___________________________________________________________ 4-1
4-2. PREVENTIVE MAINTENANCE _______________________________________________4-1
4-3. CALIBRATION AND ADJUSTMENTS _________________________________________4-3

4.1.1 Converter Assembly Calibration____________________________________________________ 4-3

4.1.2 Display Assembly_______________________________________________________________ 4-6

M520086-01 vi

LIST OF TABLES

TABLE 1-1 3300 SERIES TECHNICAL CHARACTERISTICS......................................................1-2

TABLE 1-2 3300 SERIES TECHNICAL CHARACTERISTICS......................................................1-4

TABLE 2-1 3300 SERIES INPUT/OUTPUT CONNECTORS........................................................2-2

TABLE 3-1 3300 SERIES CONTROLS AND INDICATORS..........................................................3-5

TABLE 3-2 BARRIER STRIP (TB1) DESIGNATIONS AND FUNCTIONS....................................3-6

TABLE 4-1 PREVENTIVE MAINTENANCE SCHEDULE.............................................................. 4-1

TABLE 4-2 INSPECTION AND CORRECTIVE ACTION...............................................................4-2

LIST OF FIGURES

FIGURE 3-1 3300 SERIES CONTROLS AND INDICATORS ....................................................... 3-4

FIGURE 3-2 NORMAL CONNECTION PATTERN......................................................................3-11

FIGURE 3-3 REMOTE RESISTANCE PROGRAMMING OF OUTPUT CURRENT ...................3-11

FIGURE 3-4 REMOTE VOLTAGE PROGRAMMING OF OUTPUT CURRENT .........................3-12

FIGURE 3-5 REMOTE RESISTANCE PROGRAMMING OF OUTPUT VOLTAGE....................3-12

FIGURE 3-6 REMOTE VOLTAGE PROGRAMMING OF OUTPUT VOLTAGE..........................3-13

FIGURE 3-7 REMOTE SENSING OPERATION..........................................................................3-13

FIGURE 3-8 REMOTE ON/OFF CONTROL BY CONTACT CLOSURE..................................... 3-14

FIGURE 3-9 REMOTE ON/OFF OPERATION USING AC/DC VOLTAGE SOURCE................. 3-14

FIGURE 3-10 AUTO-PARALLEL OPERATION........................................................................... 3-15

FIGURE 3-11 AUTO-SERIES OPERATION................................................................................ 3-16

FIGURE 3-12 AUTO-TRACKING OPERATION.......................................................................... 3-17

M520086-01 vii

Chapter 1

DESCRIPTION OF EQUIPMENT

1.1 PURPOSE AND CAPABILITIES

The Power Ten 3300 Series power supplies are general purpose power supplies designed
specifically for laboratory test and system s applicat ions r equiring variable DC sources with good
regulation and low output ripple characteristics. Models of the 3300 Ser ies are constant
current/constant voltage supplies with an automatic cr ossover feature. They provide up to 1000
watts of DC power over a wide range of voltage and current levels.

1.2 TECHNICAL CHARACTERISTICS

The physical, electrical and environmental characteristics for the 3300 Series are listed in
Tables 1-1 and 1-2.

M520086-01 1-1

Table 1-1

3300 Series Technical Characteristics

PARAMETERS

PHYSICAL CHARACTERISTICS:

Width
Depth
Height
Weight

ELECTRICAL CHARACTERISTICS:

Input Power (Standard)
Voltage
Frequency
Phases

Regulation (Line or Load)
Voltage
Current

Noise and Ripple (RMS)
Transient Response

Stability

Remote Control/Monitor

Power Density
Power Factor
Total Harmonic

SPECIFICATIONS

19.00 in.

18.50 in

1.75 in.
15 lb. max.

95 to 127 VAC, 190 to 253 VAC (Option)
47 to 63 Hz
Single, 2-wire plus gnd

0.1% of max. output voltage

0.1% of max. output current
30 mV max.
A 30% step load will recover to within 2%

of original value within 10 ms.

0.05% of set point per 8 hr. after warm-up

+
and at a fixed line, load and temperature.

On/Off cont r ol via contact closur e,
6-120 VDC or 12-240 VAC.

2.5 Wat t s/cubic in.
.99 min. at full load

2.5% max.

M520086-01 1-2

3300 Series Technical Characteristics - Continued

PARAMETERS
Remote Programming
Resistive:

Constant Voltage (0-100%)
Constant Current (0-100%)

Voltage:
Constant Voltage (0-100%)
Constant Current (0-100%)

Current:
Constant Voltage (0-100%)
Constant Current (0-100%)

Remote Sensing

ENVIRONMENTAL
CHARACTERISTICS:

Temperature Coefficient

Ambient Temperature
Operating
Storage

Cooling

Table 1-1

SPECIFICATIONS

0 - 5k ohms
0 - 5k ohms

0 - 5 VDC
0 - 100 mV

0 - 1 mA
0 - 1 mA

Terminals are provided to sense output
voltage at point of load. Maximum line drop
3% of rated voltage per line.

0.02%/°C of max. output voltag e rating for
voltage set point.

0.03%/°C of max. output curr ent r ating for
current set point.

0 to 50°C

-40° to 75°C
Internal blowers

M520086-01 1-3

Table 1-2

3300 Series Technical Characteristics

MODEL NUMBER

7.575

7.5125
1060

10100

2030
2050
3020
3033
4015
4025
5020
6010
6016
8006
8012

10010

1208
1507

OUTPUT DC

VOLTS

0-7.5
0-7.5

0-10
0-10
0-20
0-30
0-30
0-30
0-40
0-40
0-50
0-60
0-60
0-80

0-80
0-100
0-120
0-150

OUTPUT DC

AMPS

75

125

60

100

30
50
20
33
15
25
20
10
16

6
12
10

8

7

OUTPUT

RIPPLE (RMS)

30 mV
30 mV
30 mV
30 mV
30 mV
30 mV
30 mV
30 mV
30 mV
30 mV
30 mV
30 mV
30 mV
50 mV
50 mV
50 mV
50 mV
50 mV

M520086-01 1-4