HP A Series - User Manual

MODULAR POWER SUPPLIES
A, C, AND E SERIES
MODELS 62003A-62048A,
62003C-62048C, AND 62003E-62048E
OPERATING AND SERVICE MANUAL
FOR SERIALS 1210A-00101 AND ABOVE*
^For Serials Above 1210A-00101, a change page may be included.
Hewlett-Packard
HP Part No. 5950-5969
Printed; May, 1972

HP A Series Specifications

General

Model	HP A Series
Category	Power Supply
Input Voltage	100-240V AC
Input Frequency	50/60 Hz
Cooling	Fan
Connectors	SATA, Molex
Efficiency	80% or higher (80 Plus Certified)

Summary

SECTION I GENERAL INFORMATION

1-1 DESCRIPTION

Describes the solid-state nature and modular design of power supplies.

1-8 SPECIFICATIONS

1-9 Detailed Specifications

States that detailed specifications are provided in Table 1-1.

1-10 OPTIONS

Option 011: Overvoltage Protection Crowbar

Protects loads from high voltage power supply failures.

Option 101: 220 Vac Input

Allows operation from a 220 Vac input.

Option 102: 240 Vac Input

Allows operation from a 240 Vac input.

Option 103: 120;240 Vac Input

Allows field-selectable 120/240 Vac input.

Option 104: System Control

Controls crowbar circuit and allows remote voltage programming.

2-17 220;240 VOLT OPERATION

2-19 Option 103 Power Transformer Connections, A- Suffix Models

Details transformer connections for 240V operation on A-suffix models.

2-20 Option 103 Power Transformer Connections, -C and E- Suffix Models

Explains transformer connections for C and E-suffix models.

SECTION III OPERATING INSTRUCTIONS

3-1 TURN-ON CHECKOUT PROCEDURE

Provides a step-by-step procedure for verifying supply operation.

3-7 Current Limit

Details the current limiting characteristics and factory settings.

3-13 Remote Sensing

5-31 Load Transient Recovery

5-37 TROUBLESHOOTING

5-41 Initial Troubleshooting Procedures

Outlines initial steps to take when a malfunction occurs.

5-43 Open Fuse Troubleshooting

Provides steps to troubleshoot an open fuse condition.

5-45 Current Limit Troubleshooting

5-47 Excessive Ripple Troubleshooting

5-72 Current Limit Adjustment

APPENDIX A OPTION 011, Overvoltage Protection Crowbar

CIRCUIT DESCRIPTION

Resetting Crowbar

Temperature Switch