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Chroma A620028 - User Manual

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238 pages
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Table of Contents

Questions and Answers

  • A
    Anthony JonesSep 12, 2025
    What does 'CURR. SHARING ERR.' mean on Chroma A620028 Power Supply?
    • S
      Stephen VasquezSep 12, 2025
      If the Chroma Power Supply displays 'Current sharing error protection (CURR. SHARING ERR.)', it could be due to several reasons: 1. The current sharing cable is not connected when used in parallel mode. Ensure the cables are connected correctly. 2. Calibration error. See section 3.3.7.3 Calibration. 3. The D/D power stage is damaged. Contact your local sales agent for further assistance.
  • C
    Christina FieldsSep 13, 2025
    What does 'FPGA IS TOO OLD,PLS UPDATE!' mean on Chroma A620028?
    • J
      Jennifer CochranSep 13, 2025
      If your Chroma Power Supply displays 'FPGA IS TOO OLD,PLS UPDATE!', it means that the power supply’s FPGA does not match with the F/W. Contact your local sales agent for further assistance.
  • J
    jenkinsphillipSep 15, 2025
    What does 'Fan Fail Protection (FAN LOCK)' mean on Chroma A620028 Power Supply?
    • N
      Nicholas AustinSep 15, 2025
      If the Chroma Power Supply displays 'Fan Fail Protection (FAN LOCK)', it could be due to the fan being out of order or an abnormal feedback circuit. Contact your local sales agent if the protection state cannot be reset.

Summary

Safety Summary and Symbols

1. Overview and Specifications

1.2 System Functions

Details the product's operating modes, protection, input signals, measurement capabilities, and front/rear panel functions.

1.3 Specifications

Lists detailed operating specifications, including ratings, noise, response times, and slew rates for various models.

1.4 Function Keys

1.4.1 Front Panel Controls

Describes the function of each key and control on the front panel of the instrument.

1.4.2 Rear Panel Connectors

Details the connectors and indicators located on the rear panel of the instrument.

2. Installation Procedures

2.2 Preparation for Use

2.3 Input Power Requirements and Connections

Details electrical power specifications, ratings, and correct AC power input connections.

2.4 Remote Sensing Configuration

Explains how to correctly connect remote sensing wires to compensate for voltage drops across load cables.

2.5 Output Connection and Wire Specifications

Provides instructions for connecting the load and specifies wire inductance and diameter requirements.

2.6 Power-On Procedure

Details the correct sequence for powering on the instrument and the subsequent self-test operations.

3. Manual Operation and Configuration

3.2 Setting Voltage and Current

Explains how to manually set the output voltage and current using the front panel controls.

3.3 Configuration and Settings

Covers system setup, output configuration, series/parallel modes, display, protection, calibration, remote setup, and output modes.

4. Program Sequence Control

4.1 LIST MODE Programming

4.2 V_STEP MODE Programming

4.3 IV PROGRAM Setup

5. Remote Operation and Programming

5.1.1 USB Interface Configuration

5.1.2 Setting Communication Parameters

5.1.3 RS-232 C Connection

5.1.4 RS-485 Connection

5.1.5 Ethernet Remote Control Setup

5.2 GPIB Functionality

5.6 DC Power Supply Commands

7. ETHERNET Functions (62020 H-150 S Only)

7.1 Web Page Usage

7.2 ETHERNET Setup Operations

7.3 LAN Configuration Initialize (LCI)

8. Self Test and Troubleshooting

8.2 Troubleshooting Guide

Provides a table of common problems, causes, and suggested resolutions for the instrument.

Appendix B: List of Protection Messages

Protection Message Summary

Chroma A620028 Specifications

General IconGeneral
BrandChroma
ModelA620028
CategoryPower Supply
LanguageEnglish

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