Kikusui PLZ164W, PLZ334W, PLZ1004W, PLZ164WA, PLZ664WA User Manual

Part No. IB020915

Oct. 2015

USERS MANUAL

ELECTRONIC LOAD PLZ-4W Series

PLZ 164 W PLZ 164 WA PLZ 334 W PLZ 664 WA PLZ 1004 W

About the PLZ-4W series Manuals

Manual construction

Setup Guide

The setup guide is intended for first-time users of the PLZ-4W series. It gives an overview of the PLZ4W series, connecting procedures, safety precautions, etc. Please read through and understand this guide before operating the product.

Quick Reference

The quick reference briefly explains the panel description and the basic operation of the PLZ-4W.

User’s Manual (This manual, PDF)

User’s manual is intended for first-time users of the PLZ-4W series. It gives an overview of the PLZ4W series and describes various settings, measurement procedures, maintenance, safety precautions, etc.

Communication Interface Manual (HTML, partially PDF)

The Communication Interface Manual explains the settings and commands for remotely controlling the PLZ-4W series, using the communication interface and gives sample programs. The interface manual is written for readers with sufficient basic knowledge of how to control instruments using a personal computer.

PDF and HTML files are included in the accompanying CD-ROM. Adobe Reader 9.2 or later is required to view the PDF files. Microsoft Internet Explorer 9 or later is required to view the HTML files.

Please read through and understand the Operation Manual before operating the product. After reading, always keep the manuals nearby so that you may refer to it as needed. When moving the product to another location, be sure to bring the manuals as well. If you find any incorrectly arranged or missing pages in the manual, they will be replaced. If the manual gets lost or soiled, a new copy can be provided for a fee. In either case, please contact Kikusui distributor/ agent, and provide the “Kikusui Part No.” given on the cover. The Operation Manual has been prepared with the utmost care; however, if you have any questions, or note any errors or omissions, please contact Kikusui distributor/agent.

Firmware versions that this manual covers

This manual covers firmware versions 1.4X. When contacting us about the product, please provide us with:

The model (marked in the top section of the front panel) The firmware version (see page 2-9) The serial number (marked on the rear panel)

Trademarks

Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/ or other countries. Other company names and product names used in this manual are generally trademarks or registered trademarks of the respective companies.

Copyrights

Reproduction and reprinting of operation manual, whole or partially, without our permission is prohibited. Both unit specifications and manual contents are subject to change without notice.

Contents

Chapter 1 General Information 1-1

Chapter 2 Installation and Preparation 2-1

1.1 About This Manual - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-2

1.2 Product Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-2

1.3 PLZ-4W Series Lineup - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-3

1.4 Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-4

1.5 Overview of Controls - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-6

1.6 Options - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-8

2.1 Checking the Package Contents - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2

2.2 Precautions Concerning Installation Location - - - - - - - - - - - - - - - - - - - 2-3

2.3 Precautions When Moving the Unit - - - - - - - - - - - - - - - - - - - - - - - - - - 2-4

2.4 Connecting the Power Cord - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-5

2.5 Grounding (Earth) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-6

2.6 Turning on The Power - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-7

2.7 Checking the ROM Version - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-9

2.8 Load Wiring - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-10

2.8.1 Precautions Concerning Wiring - - - - - - - - - - - - - - - - - - - - - - - 2-10

2.8.2 Connection to the Load Input Terminal on the Rear Panel - - - - - 2-14

2.8.3 Connection to the Load Input Terminal on the Front Panel - - - - 2-17

Chapter 3 For First Time Users 3-1

3.1 What Is an Electronic Load - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-2

3.2 Basic Flow of Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-3

3.3 Operating area of the PLZ-4W - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-6

3.4 Basic Operation Modes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-7

3.4.1 Operation of the CC Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-7

3.4.2 Let's Use CC Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-9

Chapter 4 Names and Functions of Parts 4-1

4.1 Front Panel - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-2

4.2 Rear Panel - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-4

4.3 Operation Panel - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-6

4.4 Display - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-12

Chapter 5 Basic Operation 5-1

5.1 Panel Control Basics - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-2

5.2 Turning On or Off the Load - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-3

5.3 Types of Protection Functions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-6

5.4 Setting the Protection Function - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-8

5.5 Operation Modes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-9

PLZ-4W Contents 3

5.6 CC Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-10

5.7 CR Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-13

5.8 CV Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-16

5.9 CP Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-18

5.10 Soft start - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-20

5.11 Lock Function - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-22

5.12 Short Function - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-24

5.13 Menu Setup - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-25

5.14 Initialization - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-28

5.15 Response Speed - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-29

Chapter 6 Applied Operation 6-1

6.1 ABC preset memories - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-2

6.1.1 Saving to ABC preset memories - - - - - - - - - - - - - - - - - - - - - - - 6-3

6.1.2 Recalling ABC preset memories - - - - - - - - - - - - - - - - - - - - - - - - 6-3

6.2 Setup Memory - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-6

6.2.1 Saving to the Setup Memory - - - - - - - - - - - - - - - - - - - - - - - - - - 6-7

6.2.2 Recalling the Setup Memory - - - - - - - - - - - - - - - - - - - - - - - - - - 6-8

6.3 Switching Function - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-10

6.4 Setting the Slew Rate - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-12

6.5 Using the Elapsed Time Display and the Auto Load Off Timer - - - - - - - 6-13

6.6 Sequence Function - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-14

6.6.1 Overview of the Normal Sequence - - - - - - - - - - - - - - - - - - - - - 6-15

6.6.2 Sequence Editing - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-18

6.6.3 Sequence Example (Normal Sequence) - - - - - - - - - - - - - - - - - 6-21

6.6.4 Overview of the Fast Sequence - - - - - - - - - - - - - - - - - - - - - - - 6-27

6.6.5 Fast Sequence Editing - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-29

6.6.6 Sequence Example (Fast Sequence) - - - - - - - - - - - - - - - - - - - - 6-31

6.6.7 Executing, Pausing, Stopping the Sequence - - - - - - - - - - - - - - - 6-36

6.7 Remote Sensing Function - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-38

6.8 External Control - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-39

6.8.1 Overview and Precaution of External Control - - - - - - - - - - - - - - 6-39

6.8.2 J1/J2 connector - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-40

6.8.3 External Control of CC Mode - - - - - - - - - - - - - - - - - - - - - - - - 6-44

6.8.4 External Control of CR Mode - - - - - - - - - - - - - - - - - - - - - - - - 6-50

6.8.5 External Control of CP Mode - - - - - - - - - - - - - - - - - - - - - - - - 6-52

6.8.6 External Control of CV Mode - - - - - - - - - - - - - - - - - - - - - - - - 6-54

6.8.7 External Control of Load On and Load Off - - - - - - - - - - - - - - - 6-56

6.8.8 Trigger Signal Control - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-57

6.8.9 External Control of the Current Range - - - - - - - - - - - - - - - - - - 6-58

6.8.10 Alarm Signal Control - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-59

6.9 Monitor Signal Output - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-60

6.10 Parallel operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-62

6.10.1 Parallel Operation Using the Same Model - - - - - - - - - - - - - - - - 6-62

6.10.2 Parallel Operation Using Load Boosters - - - - - - - - - - - - - - - - - 6-65

6.10.3 Alarms during Parallel Operation - - - - - - - - - - - - - - - - - - - - - 6-66

4 Contents PLZ-4W

6.10.4 Response Speed during Parallel Operation - - - - - - - - - - - - - - - - 6-66

6.10.5 Slew Rate during Parallel Operation - - - - - - - - - - - - - - - - - - - - 6-66

6.10.6 Canceling the Parallel Operation - - - - - - - - - - - - - - - - - - - - - - 6-66

Chapter 7 Remote Control 7-1

7.1 Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-2

7.2 Interface Setup - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-3

7.2.1 GPIB Control - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-3

7.2.2 RS232C Control - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-4

7.2.3 USB Control - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-6

7.3 Contents of the accompanying CD-ROM - - - - - - - - - - - - - - - - - - - - - - 7-7

7.3.1 Installing the VISA Library - - - - - - - - - - - - - - - - - - - - - - - - - - 7-8

7.3.2 Installing the Software Application - - - - - - - - - - - - - - - - - - - - 7-10

7.4 Command Details - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-10

Chapter 8 Maintenance and Calibration 8-1

8.1 Maintenance - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-2

8.1.1 Cleaning the Panels - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-2

8.1.2 Cleaning the Dust Filter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-2

8.1.3 Inspecting the Power Cord - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-3

8.1.4 Internal Inspection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-3

8.2 Confirming status of the fuse - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-4

8.3 Calibration - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-5

8.3.1 Calibration Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-5

8.3.2 Preparation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-6

8.3.3 Calibration Procedure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-7

8.4 Malfunctions and Causes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-14

Chapter 9 Specifications 9-1

9.1 Electrical Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9-2

9.2 General Specifications ----------------------------- 9-8

9.3 Dimensions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9-10

Appendix A-1

A.1 Operating Area of the PLZ-4W - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A-1 A.2 Basic Operation Modes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A-2

A.2.1 Operation of the CC Mode - - - - - - - - - - - - - - - - - - - - - - - - - - A-2 A.2.2 Operation of the CR Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - A-4 A.2.3 Operation of the CP Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - A-6 A.2.4 Operation of the CV Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - A-8 A.2.5 Operation of the CC+CV Mode - - - - - - - - - - - - - - - - - - - - - - A-10 A.2.6 Operation of the CR+CV Mode - - - - - - - - - - - - - - - - - - - - - - A-12

A.3 Operating Area of Each Model - - - - - - - - - - - - - - - - - - - - - - - - - - - - A-15

A.3.1 Operating Area of the PLZ164W - - - - - - - - - - - - - - - - - - - - - - A-15

PLZ-4W Contents 5

A.3.2 Operating Area of the PLZ334W - - - - - - - - - - - - - - - - - - - - - - A-16 A.3.3 Operating Area of the PLZ1004W - - - - - - - - - - - - - - - - - - - - - A-17 A.3.4 Operating Area of the PLZ164WA - - - - - - - - - - - - - - - - - - - - A-18 A.3.5 Operating Area of the PLZ664WA - - - - - - - - - - - - - - - - - - - - A-19

A.4 Sequence Program Creation Table - - - - - - - - - - - - - - - - - - - - - - - - - - A-20

Index I- 1

6 Contents PLZ-4W

Chapter 1 General Information

This chapter gives an overview and introduces the features of the PLZ-4W Series Electronic Loads.

PLZ-4W General Information 1-1

1.1 About This Manual

This operation manual covers the following PLZ-4W Series Electronic Loads.

• PLZ164W • PLZ164WA

• PLZ334W • PLZ664WA

• PLZ1004W

Product version covered

This operation manual covers electronic loads with ROM version 1.3x. When contacting us about the product, please provide us the following information.

• Model

• ROM version

• Manufacturing number (indicated at the lower section on the rear panel)

For the procedure of confirming the ROM version, see section 2.7, ?Checking the ROM Version.”

1.2 Product Overview

The PLZ-4W Series Electronic Load is a multifunctional system designed to offer the highest levels of reliability and safety. The electonic load contains a stable and high-performance current control circuit that enables high-speed load simulations. In addition, its CPU control feature works to improve operability and multifunctional capability.

The high-precision current settings provide you with sufficient resolution. Because the electonic load comes standard with GPIB, RS232C, and USB commu-

nication functions, it can easily be incorporated into wide-ranging test and inspection systems.

1-2 General Information PLZ-4W

1.3 PLZ-4W Series Lineup

The PLZ-4W Series consists of the electronic load and the load booster.

1. Electronic load (PLZ-4W or PLZ-4WA)

2. Load booster (PLZ-4WB)

Two types of the PLZ-4W Series are available depending on the input operating voltage.

1. Operating range of 1.5 V to 150 V. (PLZ-4W and PLZ-4WB)

2. Operating range of 0 V to 150 V. (PLZ-4WA)

■ Electronic load

Model

PLZ164W 33

PLZ334W 66 330

PLZ1004W 200 1 000

PLZ164WA 33

PLZ664WA 132 660

■ Load booster

Model

PLZ2004WB

*1. PLZ2004WB is a dedicated option for PLZ1004W.

Maximum Operating

Current (A)

Maximum Operating

Current (A)

400 1.5 to 150 2 000

Operating

Voltage (V)

1.5 to 150

0 to 150

Operating

Voltage (V)

Wattage (W)

165

Wattage (W)

PLZ-4W General Information 1-3

1.4 Features

In addition to the high-performance constant current, constant resistance, and constant power modes, the PLZ-4W Series Electronic Load offers wide variety of other features.

■ High-speed slew rate of 16 A/s (PLZ1004W)

The rise and fall slew rate of the current when switching at 2 % to 100 % (20 % to 100 % in M range) of the rated current in constant current mode is 16 A/s (PLZ1004W), which converts to rise and fall times of 10 s (all types).

This allows you to conduct more accurate DC power transient response tests and to generate simulated waveforms for use as dummy loads.

■ Variable slew rate

Unlike the conventional electronic loads that were configured using rise and fall times, the PLZ-4W allows configuration using slew rates (A/s) in constant current and constant resistance modes.

This allows you to optimize the voltage drop caused by the wire inductance that occurs when a load is switched or the transient control of the equipment under test (such as a constant voltage power supply).

■ Higher precision

Higher precision is offered for current settings. Resolution at low current settings is provided using a 3-range configuration. (A 0.01

mA resolution is possible at the L range of the PLZ164W.)

■ Operability

The PLZ-4W employs a large LCD. Measured values of voltage, current, and power at the load input terminal are indi-

cated at all times. The values are indicated using larger characters than other sections to improve the visibility.

Coarse and fine adjustments using the rotary knob are useful for setting values over a wide range.

The easy-to-use memory function enables repetitive tests.

■ 0 V input type

A 0 V input operating voltage type is available. This feature is a must for single cell tests of fuel cells. Moreover, the operating volt-

age of semiconductor devices is decreasing more and more due to the reduction of the power consumption and miniaturization of the semiconductor process. The 0 V input type can be used to evaluate the power supplies for these types of applications.

■ Sequence function

Sequence patterns set arbitrarily can be saved to built-in memory. Up to 10 normal sequence programs and 1 fast sequence program can be saved. Up

to 256 steps and 1024 steps can be saved for each normal sequence program and fast sequence program, respectively.

1-4 General Information PLZ-4W

The sequence pattern can be edited easily using the large LCD.

■ Useful function for battery discharge tests

The PLZ-4W can measure the time from load on to load off. When combined with the under voltage protection (UVP) function, the time from

when the battery discharge is started until the battery voltage falls to the cutoff voltage can be measured (time measurement).

In voltage measurement, the voltage immediately before the load turns off is measured. If you set a timer to turn off the load after a specified time elapses, you can measure the closed circuit voltage after a specified time elapses from the start of battery discharge (voltage measurement).

■ Load booster

To achieve large capacity at low cost, the PLZ1004W comes with a load booster (PLZ2004WB).

Using a single PLZ1004W as a master unit, up to four load boosters can be connected in parallel (9 kW, 1 800 A maximum).

■ Standard GPIB, RS232C, and USB communication functions

Because the electonic load comes standard with GPIB, RS232C, and USB communication functions, it can easily be incorporated into wide-ranging test and inspection systems.

Wide variety of systems can be configured when combined with the sequence function.

PLZ-4W General Information 1-5

1.5 Overview of Controls

AC INPUT

100-240V 47

63Hz

160VA MAX

KCC-REM-KEJ

PLZ-78270 2012/05

AC INPUT

100-240V 47

63Hz

160VA MAX

This section describes the controls on the electronic load and combined systems.

Operation using the control panel

The PLZ-4W employs a large LCD. Measured values of voltage, current, and power at the load input terminal are indicated at all times. The values are indicated using larger characters than other sections to improve the visibility.

Coarse and fine adjustments using the rotary knob are useful for setting values over a wide range.

Fig.1-1 Panel control

External communication interface

The PLZ-4W can be controlled from a PC. GPIB, RS232C, and USB communication functions come standard.

Fig. 1-2 PLZ-4W and PC connection diagram

1-6 General Information PLZ-4W

Support for large capacity

Master (PLZ1004W)

Master Slave

Load booster (PLZ2004WB)

Slave (PLZ1004W)

Up to four PLZ2004WBs can be connected

Up to five PLZ-4Ws of the same type as the master device can be connected

PLZ-4W other than PLZ1004W

PLZ1004W

Up to five PLZ1004Ws can be connected

( )

To achieve large capacity at low cost, the PLZ1004W comes with a load booster (PLZ2004WB).

Using a single PLZ1004W as a master unit, up to four load boosters can be connected in parallel (9 kW, 1 800 A maximum).

In parallel operation without using load boosters, up to five electonic loads of the same type including the master unit can be connected in parallel (5 kW, 1000 A maximum).

Fig. 1-3 Parallel connection

PLZ-4W General Information 1-7

1.6 Options

Control flat cables

Control cable used to connect between the master unit and the slave unit (load booster) and between slave units. The following two types of cables are available.

Model Code Length Application

PC01-PLZ-4W 84540 300 mm

PC02-PLZ-4W 84550 550 mm Connect between the master unit and load booster

The two types of cables only differ in their length. The 550-mm PC02-PLZ-4W is required to connect the master unit and the load booster.

Analog remote contorol connector kit (OP01-PLZ-4W)

Connect between

unit (load booster) and between slave units

the master unit and the slave

A kit for connecting to the J1/J2 connector.

Pins 20 pcs.

Socket 1 pc.

Protection cover 1 set

1-8 General Information PLZ-4W

Rack Mounting Option

KRA3

KRA150

132.5 (5.22)

57 (2.24)

37.75 (1.49)

149

100

24.5

465 (18.31) 482 (18.98)

460 480

KRB3-TOS

KRB150-TOS

149

100

24.5

460 479

132 (5.20)

(2.24)

37.5

(1.48)

465 (18.31) 479 (18.86)

The following rack mounting options are available.

Item Model Applicable Model Note

Rack adapter

KRA3

(Fig. 1-4)

KRA150

PLZ164W PLZ334W PLZ164WA

KRB3-TOS

Rack mount bracket (Fig. 1-5)

PLZ664WA PLZ1004W

KRB150-TOS

For details, contact your Kikusui agent or distributor.

Inch rack EIA standard

Milli rack JIS standard

Inch rack EIA standard

Milli rack JIS standard

Unit: mm (inch)

Fig. 1-4 Rack adapter

Unit: mm (inch)

Fig. 1-5 Rack mount bracket

PLZ-4W General Information 1-9

1-10 General Information PLZ-4W

Chapter 2 Installation and

Preparation

This chapter describes the procedures of unpacking and preparation before using the PLZ-4W.

PLZ-4W Installation and Preparation 2-1

2.1 Checking the Package Contents

NOTE

Load input terminal cover (1 pc.) Lock plate (2 pcs.)

J1/J2 protection dummy plug (2 pcs.) [Attached to the product.]

Set of screws for the load input terminal (2 sets)

Power cord (1 pc.)

[Q1-500-085]

[P2-000-228]

[M1-100-012]

[M5-101-007]

[M4-100-007]

[84-49-0071]

or or

Setup Guide (1 pc.)

Quick Reference (Japanese 1sheet, English 1sheet)

CD-ROM (1 pc.)

Plug: NEMA5-15 Rating: 125 Vac/10A [85-AA-0003]

Plug: CEE7/7 Rating: 250 Vac/10A [85-AA-0005]

Plug: GB1002 Rating: 250 Vac/10A [85-10-0790]

The power cord that is provided varies depending on the destination for the product at the factory-shipment.

When you receive the product, check that all accessories are included and that the product and accessories have not been damaged during transportation.

If any of the accessories are damaged or missing, contact your Kikusui agent or distributor.

• It is recommended that all packing materials be saved, in case the product needs to be transported at a later date.

Fig.2-1 Accessories

2-2 Installation and Preparation PLZ-4W

2.2 Precautions Concerning Installation Location

This section describes the precautions to be taken when installing the unit. Make sure to observe them.

■ Do not use the unit in a flammable atmosphere.

To prevent the possibility of explosion or fire, do not use the unit near alcohol, thinner or other combustible materials, or in an atmosphere containing such vapors.

■ Avoid locations where the unit is exposed to high temperature or direct sunlight.

Do not place the unit near a heater or in areas subject to drastic temperature changes.

Operating temperature range: 0 C to +40 C (+32 F to +104 F) Storage temperature range: -25 C to +70 C ( -13 F to +158 F)

■ Avoid humid environments.

Do not place the unit in high-humidity locations--near a boiler, humidifier, or water supply.

Operating humidity range: 20 % to 85 % RH (no condensation) Storage humidity range: 0 % to 90 % RH (no condensation)

Condensation may occur even within the operating humidity range. In such case, do not use the unit until the condensation dries up completely.

■ Do not place the unit in a corrosive atmosphere.

Do not install the unit in a corrosive atmosphere or in environments containing sulfuric acid mist, etc. This may cause corrosion of various conductors and bad contacts of connectors inside the unit leading to malfunction and failure, or in the worst case, a fire.

However, operation in such environments may be possible through alteration. If you wish to use the unit in such environments, consult your Kikusui agent or distributor.

■ Do not place the unit in a dusty location.

Accumulation of dust can lead to electric shock or fire.

■ Do not use the unit where ventilation is poor.

The unit employs a forced air cooling system. Air is taken in from air inlet located on panels other than the rear panel and exhausted from the air outlet on the rear panel. Secure adequate space around the unit to prevent the possibility of fire caused by accumulation of heat.

Allow at least 20 cm of space between the air inlet/outlet and the wall (or obstacles). Hot air (approximately 20 C higher than the ambient temperature) is exhausted

from the air outlet. Do not place objects that are affected by heat near the air outlet.

PLZ-4W Installation and Preparation 2-3

■ Do not place objects on top of the unit.

Placing objects on top of the unit can cause failures (especially heavy objects).

■ Do not place the unit on an inclined surface or location subject to vibrations.

The unit may fall or tip over causing damages and injuries.

■ Do not use the unit in a location where strong magnetic or electric fields are nearby or a location where large amount of distortion and noise is present on the input power line waveform.

The unit may malfunction.

■ Do not use the unit near highly sensitive measuring instruments or transceivers.

The noise generated by the unit may affect them

■ Secure adequate space around the power plug.

Do not insert the power plug to an outlet where accessibility to the plug is poor. And, do not place objects near the outlet that would result in poor accessibility to the plug.

2.3 Precautions When Moving the Unit

When moving the unit to the installation location or when transporting the unit, note the following points.

■ Turn off the POWER switch.

Moving the unit while the power is turned on can cause electric shock or damage to the unit.

■ Remove all wiring.

Moving the unit with the cables connected can cause wires to break or injuries due to the unit falling over.

■ Hold the handle.

When lifting the unit, hold the handle on the side or top panel.

■ When transporting the unit, be sure to use the original packing materials.

Otherwise, damage may result from vibrations or from the unit falling during transportation.

2-4 Installation and Preparation PLZ-4W

2.4 Connecting the Power Cord

WARNING

NOTE

The power cord that is provided varies depending on the destination for the product at the factory-shipment.

• This product is designed to be connected to a power supply classified as

Overvoltage Category II. Do not connect to a power supply classified as Overvoltage Category III or IV.

• The power cord for 100-V system has a rated voltage of 125 VAC. If this

power cord is used at the line voltage of a 200-V system, replace the power cord with that satisfying that line voltage.

Have a qualified engineer select the appropriate power cord. If obtaining the right power cord is difficult, contact Kikusui distributor/agent.

• The power cord with a plug can be used to disconnect the PLZ-4W series from the

AC power line in an emergency. Connect the plug to an easily accessible power outlet so that the plug can be removed from the outlet at any time. Be sure to provide adequate clearance around the power outlet.

• Do not use the power cord that comes with the product as a power cord for other

equipment.

Check that the AC power supply is within the input power supply range

of the product.

Input voltage range: 100 VAC to 240 VAC

(100 V to 120 V and 200 V to 240 V for the PLZ164WA and PLZ664WA)

Frequency range: 47 Hz to 63 Hz

Check that the POWER switch is turned off.

Connect the power cord to the AC INPUT connector on the rear panel.

Use a power cord specified by Kikusui or one that has been selected by a qualified engineer.

Insert the power plug to the outlet.

PLZ-4W Installation and Preparation 2-5

2.5 Grounding (Earth)

WARNING

CAUTION

Three-pin outlet with proper grounding

Fig. 2-2 Grounding

• Electric shock may occur, if proper grounding is not furnished.

• This product is designed as a Class I equipment (equipment furnished with

electric shock protection through protective grounding in addition to the basic insulation). Be sure to connect the protective ground terminal to an appropriate earth ground.

• If you do not ground the product, malfunction may occur due to external

noise, or the noise generated by the product may become large.

Make sure to ground the unit for your safety. Connect the power cord to a three-pin power outlet with proper grounding.

2-6 Installation and Preparation PLZ-4W

2.6 Turning on The Power

SWITCHING

ENTER

SHORT

EDIT

SLEW RATE

RUN /STOP

UVP

PAUS E

STORE

RECALL

ABC

LOAD

Th/TL

FREQ /DUTY

PRESET

SEQ

LEVEL

VRANGE

RANGE

SW ON

MODE

LOAD

SET/VSET

LOCK

SHIFT

ABC

OPP /OCP

POWER

REMOTE

I MON

OUTOUT

TRIG

POWER switch

LOAD key

Load on indication LED

Overview of the procedure

Carry out this procedure without connecting anything to the DC INPUT (load input terminal). Turn on the POWER switch and then operate the LOAD key. At the end, turn off the POWER switch.

If an alarm occurs during operation, see section 5.3, “Types of Protection Functions.

Preparation Main operation Unit behavior

Do not connect anything to the load input terminal.

Turn on the POWER switch. Press the LOAD key.

The display section is activated. LOAD indication LED illuminates.

”

PLZ-4W Installation and Preparation 2-7

Fig. 2-3

Check that the POWER switch is turned off( ).

Check that the power cord is correctly connected.

See section 2.4, “Connecting the Power Cord” and 2.5, “Grounding (Earth).”

Check that nothing is connected to the DC INPUT (load input terminal) on the front and rear panels.

Turn the POWER switch on.

Push the ( ) side of the POWER switch to turn the PLZ-4W on. A self-test is executed. A special screen appears during the test at startup. A

normal display appears when the self-test is complete.

Check whether the display appears as shown in Fig. 2-4.

The measured value displayed using large numbers (section with mA, V, and W unit) indicates coarse zero.

The characters “SET” shown under the measured value is highlighted with an

Constant current (CC) mode is selected on this screen. Therefore, current can be entered.

CAUTION

underline. This indicates that basic settings can be entered in the selected operation mode. This condition in which characters “SET” is highlighted is called the basic set-

ting entry condition.

Fig. 2-4 Basic setting entry condition

6. Press the LOAD key and check that the LED above the key illuminates.

Press the LOAD key again and check that the LED above the key turns off.

Turn off the POWER switch to finish the operation check procedure.

The PLZ-4W saves the last setup conditions through the backup function even when the power is turned off. When the power is turned on the next time, the PLZ-4W returns to the conditions that were backed up.

• To prevent malfunction, allow at least 5 s between power cycles.

If the PLZ-4W does not operate as described in the procedure

If one of the following conditions applies to your case, carry out the corresponding procedure. If the condition does not change even after taking the countermeasure indicated below, contact Kikusui distributor/agent.

Nothing is displayed.

Check the power cord connection and power cycle the unit. Adjust the display contrast. For the adjustment procedure, see the next page.

Indicates an abnormal current or voltage.

Power cycle the unit.

An alarm occurs.

See section 5.3, “Types of Protection Functions.”

2-8 Installation and Preparation PLZ-4W

Adjusting the display contrast

Firmware Version ROM Version

1. While pressing the SHIFT key, use the rotary knob to adjust the con-

trast.

The result is saved.

2.7 Checking the ROM Version

Fig. 2-5 Model Information screen (PLZ164W)

Press the MENU (SHIFT+SET/VSET) key.

The menu screen is displayed.

Use the CURSOR key to select 4. Model Info.

The selected section is highlighted.

Press the ENTER key.

The Model Information screen of Fig. 2-5 is displayed.

Press the MENU (SHIFT+SET/VSET) key to close the menu.

PLZ-4W Installation and Preparation 2-9

2.8 Load Wiring

NOTE

CAUTION

To ensure that the functions of the PLZ-4W work accurately and reliably, all wires must be connected correctly to their loads.

• This operation manual refers to the terminal on the rear panel to which the equip-

ment under test is connected and current is supplied as load input terminal.

2.8.1 Precautions Concerning Wiring

Electric wire used

• Use a load wire with sufficient diameter for the current as well as non-flam-

mable or flame-resistant cover.

If the resistance of the load wire is large, a large voltage drop may occur when a current is supplied and the voltage at the load input terminal may fall below the minimum operating voltage. Refer to Table 2-1 and select thick wires as much as possible.

Table2-1 Nominal cross-sectional area of wires and allowable currents

Nominal Cross-

Sectional Area

]

[mm

2 14 (2.08) 27 10

3.5 12 (3.31) 37 -

5.5 10 (5.26) 49 20

8 8 (8.37) 61 30

14 6 (13.3) 88 50

22 4 (21.15) 115 80

30 2 (33.62) 139 -

38 1 (42.41) 162 100

50 1/0 (53.49) 190 -

60 2/0 (67.43) 217 -

80 3/0 (85.01) 257 200

100 4/0 (107.2) 298 -

125 - - 344 -

150 - - 395 300 200 - - 469 -

250 - - 556 -

325 - - 650 -

*Excerpts from Japanese laws related to electrical equipment.

AW G

(Reference Cross-

Sectional Area)

]

[mm

Allowable Current(*)

[A]

(Ta = 30 C)

Kikusui-Recom-

mended Current

[A]

2-10 Installation and Preparation PLZ-4W

Load wire inductance

EUT

PLZ-4W

ΔI/ΔT

E = Lx (ΔI/ΔT)

Load input terminal

The load wiring has an inductance (L). When the current (I) varies in short time period, it generates a large voltage at both ends of the wiring cable. This voltage applies to all of the load input terminals of the PLZ-4W when the impedance of the EUT is relatively small. The voltage generated by the load wire inductance (L) and the current varaiation (I) is expressed using the following equation.

Fig. 2-6 Load wire and inductance

In general, the wire inductance can be measured approximately 1 µH per 1 meter. If the 10 meters of load cables is wired between the EUT and the PLZ-4W with the current variation of 10 A/µs, the voltage generated by the wire inductance will be 100 V.

The negative polarity of the load input terminal is the reference potential of the external control signal, therefore, the device connected to the external control terminal may get malfunctioned.

When operating under the constant voltage (CV) mode or constant resistance (CR) mode or constant power (CP) mode, the load current is varied by the voltage at the load input terminal, so the operation can be affected easily by the generated voltage.

The wiring to the EUT should be twisted and the shortest as possible.

PLZ-4W Installation and Preparation 2-11

If the load wire is long or has a large loop, the wire inductance is increased. Conse-

Equipment under test

PLZ-4W Series Electronic Load

Keep the wire short

100 cm or less

Twi st

–

Example: R=10 Ω, C=100 μF

quently, the current variation at the time of switching operation will cause a large voltage drop.

When the value of instantaneous voltage drops under the minimum operating voltage depends on the generated voltage at the load input terminal, the response of recovery will be extensively delayed. In such event, the PLZ-4W may generate unstable oscillation or becomes into the hunting operation. In such condition, the input voltage may exceed the maximum input voltage and cause damage to the PLZ4W.

Voltage at the load input terminal

Current

Voltage at Load Input Terminal

When the voltage drops under minimum operating voltage, the electronic load may generate unstable oscillation or becomes into hunting operation.

ΔI

ΔT

Minimum operating voltage

Current

Example of waveform

Fig. 2-7 Waveform example: Generate unstable oscillation or hunting operation

You must be careful especially when the slew rate setting is high or switching is performed using large currents through parallel operation.

To prevent problems, connect the PLZ-4W and the equipment under test using the shortest twisted wire possible to keep the voltage caused by inductance within the minimum operating voltage and maximum input voltage range or set a low slew rate.

If the high-speed response operation is not required, set the lower response speed and decrease the slew rate setting.

In the case of DC operation also, the phase lag of the current may cause instability in the PLZ-4W control inducing oscillation. In this case also, connect the PLZ-4W and the equipment under test using the shortest twisted wire possible. If only DC operation is required, a capacitor and a resistor may be connected to the load input terminal as shown in Fig. 2-8 to alleviate oscillation. In this case, use the capacitor within its allowable ripple current.

Fig. 2-8 Length of wiring

2-12 Installation and Preparation PLZ-4W

■ Operation when the response speed is changed

CAUTION

Fig. 2-9 Overvoltage alarm

CAUTION

Equipment

under test

PLZ-4W Series Electronic Load

DC150 V

–

Fig. 2-11 Reverse connection alarm

You can change the response speed in CC mode (CC+CV mode) and CR mode (CR+CV mode).

In some cases, the wire inductance increases and the phase lag of the current may cause instability in the PLZ-4W control inducing oscillation.

In such case, you can decrease the response speed to assure stable operation.

• For a description of response speed, see section 5.15, “Response Speed.”

Overvoltage

• Do not apply voltage exceeding the maximum voltage of 150 VDC to the

The maximum voltage that can be applied to the load input terminal is 150 VDC. Voltage exceeding the maximum cannot be used.

If overvoltage is applied, an alarm message appears along with a beeping alarm, and the load is turned off. In this case, immediately lower the voltage of the equipment under test.

load input terminal, as it may cause damage.

Polarity

• If the polarity is reversed, overcurrent may damage the EUT and PLZ-4W.

Be sure to match the polarities between the load input terminal and the equipment under test.

Fig. 2-10 Connection by paying attention to the polarity

If the polarity is reversed, an alarm message appears along with a beeping alarm. In this case, turn off the power of the equipment under test within 30 seconds after the alarm is activated. (the beeping alarm sounds when a reverse voltage of 0.6 V or greater is applied).

PLZ-4W Installation and Preparation 2-13

2.8.2 Connection to the Load Input Terminal on the Rear

I10 line

I20 line

I25 line

I15 line

Cut the sleeve to match the wire diameter by using the gauge as a reference.

Lock plate

Insert the lock plate to the groove on the side of the terminal.

Panel

Using the terminal cover

The load input terminal cover that comes with the package is used by passing through the load wire.

If the wire that you are using is thick and cannot be passed through the cover sleeve (where the wire is passed through), cut and adjust the size of the sleeve to match the thickness of the wire.

Use trial and error so that you don't cut too much of the sleeve.

Fig. 2-12 Load input terminal cover

Attaching the lock plate

The lock plate is used to fix the load input terminal cover to the rear panel. Once attached, you do not have to remove it. When using the load input terminal

cover for the first time, attach the lock plate in advance.

Fig. 2-13 Attachment of the lock plate

2-14 Installation and Preparation PLZ-4W

+ 186 hidden pages

Kikusui PLZ164W, PLZ334W, PLZ1004W, PLZ164WA, PLZ664WA User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Chapter 1 General Information

1.1 About This Manual

1.2 Product Overview

1.3 PLZ-4W Series Lineup

1.4 Features

1.5 Overview of Controls

1.6 Options

2.1 Checking the Package Contents

2.2 Precautions Concerning Installation Location

2.3 Precautions When Moving the Unit

2.4 Connecting the Power Cord

2.5 Grounding (Earth)

2.6 Turning on The Power

2.7 Checking the ROM Version

2.8 Load Wiring

2.8.1 Precautions Concerning Wiring