Kikusui PAD-L III Series User manual

REGULATED DC POWER SUPPLY PAD-L SERIES OPERATION MANUAL
Part No. Z1-002-302, IB002642
Jun.2003
PAD-L SERIES TYPE III
PAD16-100L
PAD35-50L
PAD35-60L
PAD60-35L
PAD110-20L
PAD250-8L
PAD-L SERIES TYPE IV
PAD35-100L
PAD60-60L
PAD110-30L
PAD250-15L
PAD-L SERIES TYPE V
PAD35-200L
PAD60-120L
PAD110-60L
PAD-L SERIESPAD-L SERIES
REGULATED DC POWER SUPPLY
OPERATION MANUAL

Use of Operation Manual
Please read through and understand this Operation Manual before operating the product. After reading,
always keep the manual nearby so that you may refer to it as needed. When moving the product to another
location, be sure to bring the manual as well.
If you find any incorrectly arranged or missing pages in this manual, they will be replaced. If the manual it
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.
This 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.
The contents of this Operation Manual may not be reproduced, in whole or in part, without the prior consent
of the copyright holder.
The specifications of this product and the contents of this Operation Manual are subject to change without
prior notice.
Copyright© 2000-2003 Kikusui Electronics Corporation
Printed in Japan

PAD-L I
Power Requirements of this Product
Power requirements of this product have been changed and the relevant sections of the
Operation Manual should be revised accordingly. (Revision should be applied to items
indicated by a check mark ✓.)
Input voltage
The input voltage of this product is ___________________ VAC,
and the voltage range is _____________ to ____________ VAC.
Use the product within this range only.
Input fuse
The rating of this product's input fuse is_________ A, ________ VAC, and ________ .
WARNING
• To avoid electrical shock, always disconnect the AC power cord
or turn off the switch on the switchboard before attempting to
check or replace the fuse.
• Use a fuse element having a shape, rating, and characteristics
suitable for this product. The use of a fuse with a different rating
or one that short circuits the fuse holder may result in fire, electric
shock, or irreparable damage.
AC power cord
The product is provided with AC power cords described below. If the cord has no power
plug, attach a power plug or crimp-style terminals to the cord in accordance with the wire
colors specified in the drawing.
WARNING
•The attachment of a power plug or crimp-style terminals must be
carried out by qualified personnel.
Blue (NEUTRAL )
Brown (LIVE)
Green/Yellow (GND)
White (NEUTRAL)
Black (LIVE)
Green or Green/Yellow (GND)
Kikusui distributor/agent can provide you with suitable AC power cord.
For further information, contact Kikusui distributor/agent.
Without a power plug Without a power plug
Plugs for Europe
Plugs for USA
Provided by Kikusui distributor/agent

II PAD-L

PAD-L Safety Precautions III
Indicates that a high voltage (over 1,000 V) is used here. Touching
the part causes a possibly fatal electric shock. If physical contact is
required by your work, start work only after you make sure that no
voltage is output here.
Indicates an imminently hazardous situation which, if ignored, will
result in death or serious injury.
Indicates a potentially hazardous situation which, if ignored, may
result in damage to the product and other property.
Shows that the act indicated is prohibited.
Is placed before the sign “DANGER,” “WARNING,” or “CAUTION”
to emphasize these. When this symbol is marked on the product,
see the relevant sections in this manual.
Indicates an earth ground terminal.
Indicates a chassis ground terminal.
Indicates a potentially hazardous situation which, if ignored, could
result in death or serious injury.
Safety Symbols
For the safe use and safe maintenance of this product, the following
symbols are used throughout this manual and on the product.
Understand the meanings of the symbols and observe the instructions
they indicate (the choice of symbols used depends on the products).
OR
DANGER
WARNING
CAUTION
OR
OR

IV Safety Precautions PAD-L
Safety Precautions
Users
• This product must be used only by qualified personnel who understand the
contents of this operation manual.
• If it is handled by disqualified personnel, personal injury may result. Be
sure to handle it under supervision of qualified personnel (those who have
electrical knowledge.)
• This product is not designed or manufactured for general home or con-
sumer use.
Purposes of use
• Do not use the product for purposes other than those described in the op-
eration manual.
Input power
• Use the product with the specified input power voltage.
• For applying power, use the AC power cord provided. For PAD-L series
TYPE III models, the supplied AC power cord cannot be used if the input
power voltage is changed to 100 V. In such a case, use an appropriate
power cord. For details, see the relevant page of this operation manual.
Fuse
• When replacing a fuse, use the one which has appropriate shape, ratings,
and specifications. For details, see the relevant page of this operation
manual.
Cover
• There are parts inside the product which may cause physical hazards.
When the cover needs to be removed to make product adjustments, al-
ways follow the procedures given in the corresponding section of the Op-
eration Manual.
Installation
• When installing products be sure to observe "Precautions for Installation"
described in this manual.
• To avoid electrical shock, connect the protective ground terminal to electri-
Operation
Manual
Line
Voltage
GNL
The following safety precautions must be observed to avoid fire hazard,
electrical shock, accidents, and other failures. Keep them in mind and
make sure that all of them are observed properly.

PAD-L Safety Precautions V
cal ground (safety ground).
• When applying power to the products from a switchboard, be sure work is
performed by a qualified and licensed electrician or is conducted under the
direction of such a person.
• Use the caster locks or stopper bolts to secure the power supply to an
installation location.
Relocation
• Turn off the power switch and then disconnect all cables when relocating
the product.
• Unlock the stoppers (caster locks and/or stopper bolts).
• Use two or more persons when relocating the product.
• Use extra precautions such as using more people when relocating into or
out of present locations including inclines or steps. Also handle carefully
when relocating tall products as they can fall over easily.
• Be sure the operation manual be included when the product is relocated.
Operation
• Before starting operations, inspect for abnormalities affecting the input
power voltage. Examine the exterior of the AC power cord. Cut off the
power supply before performing these inspections.
• If any abnormality or failure is detected in the products, stop using it imme-
diately. Disconnect the AC power cord from the switchboard. Be careful not
to allow the product to be used before it is completely repaired.
• For output wiring or load cables, use connection cables with larger current
capacity.
• Do not disassemble or modify the product. If it must be modified, contact
Kikusui distributor/agent.
Maintenance and checking
• To avoid electrical shock, be absolutely sure to stop applying power before
performing maintenance or checking.
• To maintain performance and safe operation of the product, it is recom-
mended that periodic maintenance, checking, cleaning, and calibration be
performed.
Service
• Internal service is to be done by Kikusui service engineers. If the product
must be adjusted or repaired, contact Kikusui distributor/agent.
Check?

VI Contents PAD-L
Arrangement of this manual
This Operation Manual is made up of the following sections.
Preface
Provides a brief description of the product and specifies its features.
Chapter 1 Setup
Explains the preliminary procedure for using the PAD-L series, starting with
unpacking.
Chapter 2 Precautions and Preparations for Use
Contains essential descriptions that must be understood by the user.
Chapter 3 Basic Operation
Describes the basic operations managed from the front panel of the PAD-L series.
Chapter 4 Applied Operation
Describes the remote sensing, remote control, parallel operation, and series
operation.
Chapter 5 Names and Functions of Controls
Explains the designation and the function of the switches, indicators, terminals, and
other components on the front and rear panels.
Chapter 6 Maintenance
Explains the maintenance and adjustment of the PAD-L series. The chapter also
describes some symptoms of possible problems encountered during use of the PAD-
L series, along with appropriate remedies.
Chapter 7 Specifications
Describes the electrical and mechanical specifications of the PAD-L series, as well as
its accessories.

PAD-L Contents VII
Contents
Power Requirements of this Product _____________________________ I
Safety Symbols __________________________________________ III
Safety Precautions _______________________________________ IV
Preface _______________________________________________P-1
About this manual P-1
Outline of the PAD-L series P-2
Options P-2
Chapter 1 Setup___________________________________________ 1-1
1.1 Checking at unpacking1-2
1.2 Installation 1-3
1.3 Precautions for moving1-6
1.4 Changing the input power voltage (TYPE III models only) 1-7
1.5 Connecting the AC power cord 1-10
1.6 Grounding 1-12
Chapter 2 Precautions and Preparations for Use _________________ 2-1
2.1 Inrush current 2-2
2.2 Negative voltage 2-2
2.3 Load 2-3
2.3.1 When load current has peaks or is pulse-shaped 2-3
2.3.2 When a load generates a reverse current
to the power supply 2-4
2.3.3 In case of load with accumulated energy, such as batteries 2-5
2.4 Constant-voltage and constant-current power supplies 2-6
2.5 Protective circuits 2-8
2.6 Grounding the output terminal 2-9
Chapter 3 Basic Operation __________________________________ 3-1
3.1 Turning on the power 3-2
3.2 Basic operation 3-4
3.2.1 OVP (OverVoltage Protection) trip point presetting 3-4
3.2.2 Using as a constant voltage power supply 3-6
3.2.3 Using as a constant current power supply 3-7
3.3 Connecting load 3-8
3.3.1 load cables3-8
3.3.2 Connection to the output terminals 3-10
3.4 Using the guard cap(s)3-11

VIII Contents PAD-L
Chapter 4 Applied Operation _________________________________ 4-1
4.1 Remote sensing 4-2
4.2 CV mode by remote control 4-4
4.2.1 Output voltage control (I) with external resistor4-4
4.2.2 Output voltage control (II) with external resistor 4-6
4.2.3 Output voltage control with external voltage 4-9
4.3 Output ON/OFF control 4-12
4.3.1 Output ON/OFF control (I) 4-12
4.3.2 Output ON/OFF control (II) 4-14
4.4 CC mode by remote control 4-16
4.4.1 Output current control with external resistor 4-16
4.4.2 Output current control with external voltage 4-18
4.5 Master-slave-control parallel operation 4-22
4.6 Master-slave-control series operation 4-26
4.7 Shutting off the POWER switch 4-30
4.8 Constant current charge of a battery/capacitor 4-32
Chapter 5 Names and Functions of Controls_____________________ 5-1
5.1 Front panel5-2
5.2 Rear panel 5-6
Chapter 6 Maintenance _____________________________________ 6-1
6.1 Cleaning 6-2
6.2 Inspection 6-2
6.3 Adjustment6-3
6.3.1 Test equipment required 6-3
6.3.2 Environment 6-3
6.3.3 Removing the cover 6-4
6.3.4 Adjustment procedure 6-6
6.4 Replacing the input fuse (TYPE III and TYPE IV models only) 6-14
6.5 Malfunctions and Causes 6-17
Chapter 7 Specifications ____________________________________ 7-1
7.1 TYPE III models specifications 7-2
7.2 TYPE IV models specifications 7-6
7.3 TYPE V models specifications 7-10
Index ___________________________________________________ I-1