RS PRO RPE-1326 User manual

Instruction Manual
RPE-1326/2323/3323/4323
Multi-output DC Power Supply
EN

Table of Contents
13/10/2016 Version No. 001 1
Table of Contents
SAFETY INSTRUCTIONS ...............................................................3
OVERVIEW ...................................................................................9
Introduction .......................................................................9
Series Lineup / Main Features .......................................... 12
Principle of Operation ...................................................... 14
Front Panel Overview....................................................... 17
Rear Panel Overview ....................................................... 25
CV/CC Crossover Characteristics ..................................... 26
SETUP........................................................................................ 28
Power Up ........................................................................28
Load Cable Connection .................................................... 29
Output On/Off .................................................................. 30
Select CH1/CH2 series or parallel mode ...........................31
Switch between Channels ................................................ 32
Setting Voltage Lock from Front Panel ..............................33
Set the output state at startup........................................... 34
Set the displayed digit resolution for the voltage/current .... 35
Remote Control Setting .................................................... 36
OPERATION................................................................................ 37
CH1/CH2 Independent Mode ............................................ 37
CH3 Independent Mode....................................................40
CH4 Independent Mode....................................................42
CH1/CH2 Series Tracking Mode .......................................44
CH1/CH2 Parallel Tracking Mode......................................49

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FAQ.............................................................................................51
APPENDIX...................................................................................52
Fuse Replacement ...........................................................52
Specifications...................................................................54
Declaration of Conformity .................................................57
INDEX .........................................................................................58

SAFETY INSTRUCTIONS
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SAFETY INSTRUCTIONS
This chapter contains important safety instructions that you must
follow when operating the RPE-1326/2323/3323/4323 series and
when keeping it in storage. Read the following before any
operation to insure your safety and to keep the best condition for
the RPE-1326/2323/3323/4323 series.
Safety Symbols
These safety symbols may appear in this manual or on the RPE-
1326/2323/3323/4323 series.
WARNING
Warning: Identifies conditions or practices that could result in
injury or loss of life.
CAUTION
Caution: Identifies conditions or practices that could result in
damage to the RPE-1326/2323/3323/4323 series or to other
properties.
DANGER High Voltage

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Attention Refer to the Manual
Protective Conductor Terminal
Earth (ground) Terminal
Do not dispose electronic equipment as unsorted municipal
waste. Please use a separate collection facility or contact the
supplier from which this instrument was purchased.
Safety Guidelines
General
Guidelines
CAUTION
Do not place any heavy object on the device.
Avoid severe impacts or rough handling that leads to damaging
the device.
Do not discharge static electricity to the device.
Do not block or obstruct the cooling fan vent opening.
Do not perform measurement at circuits directly connected to
Mains (see note below).
Do not disassemble the device unless you are qualified as
service personnel.

SAFETY INSTRUCTIONS
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(Measurement categories) EN 61010-1:2010 specifies the measurement
categories and their requirements as follows. The RPE-1326/2323/3323/4323
series falls under category I.
Measurement category IV is for measurement performed at the source of low-
voltage installation.
Measurement category III is for measurement performed in the building
installation.
Measurement category II is for measurement performed on the circuits directly
connected to the low voltage installation.
Measurement category I is for measurements performed on circuits not directly
connected to Mains.
Power Supply
WARNING
AC Input voltage:
100V/120V/220V±10%, 230VAC +10%/-6%, 50/60Hz
Connect the protective grounding conductor of the AC power
cord to an earth ground, to avoid electrical shock.
Fuse
WARNING
Fuse type:
100V/120V: T6.3A/250V
220V/230V: T3.15A/250V
Make sure the correct type of fuse is installed before power up.
To ensure fire protection, replace the fuse only with the
specified type and rating.
Disconnect the power cord before fuse replacement.
Make sure the cause of fuse blowout is fixed before fuse
replacement.

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Cleaning the
device
Disconnect the power cord before cleaning.
Use a soft cloth dampened in a solution of mild detergent and
water. Do not spray any liquid.
Do not use chemicals or cleaners containing harsh products
such as benzene, toluene, xylene, and acetone.
Operation
Environment
Location: Indoor, no direct sunlight, dust free, almost non-
conductive pollution (note below)
Relative Humidity: < 80%
Altitude: < 2000m
Temperature: 0°C to 40°C

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(Pollution Degree) EN 61010-1:2010 specifies the pollution degrees and their
requirements as follows. The RPE-1326/2323/3323/4323 series falls under degree
2.
Pollution refers to “addition of foreign matter, solid, liquid, or gaseous (ionized
gases), that may produce a reduction of dielectric strength or surface resistivity”.
Pollution degree 1: No pollution or only dry, non-conductive pollution occurs.
The pollution has no influence.
Pollution degree 2: Normally only non-conductive pollution occurs.
Occasionally, however, a temporary conductivity caused by condensation must
be expected.
Pollution degree 3: Conductive pollution occurs, or dry, non-conductive
pollution occurs which becomes conductive due to condensation which is
expected. In such conditions, equipment is normally protected against
exposure to direct sunlight, precipitation, and full wind pressure, but neither
temperature nor humidity is controlled.
Storage
environment
Location: Indoor
Relative Humidity: < 70%
Temperature: −10°C to 70°C
Disposal
Do not dispose this instrument as unsorted municipal waste.
Please use a separate collection facility or contact the supplier
from which this instrument was purchased. Please make sure
discarded electrical waste is properly recycled to reduce
environmental impact.

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Power cord for the United Kingdom
When using the oscilloscope in the United Kingdom, make sure the power cord
meets the following safety instructions.
NOTE: This lead/appliance must only be wired by competent persons
WARNING: THIS APPLIANCE MUST BE EARTHED
IMPORTANT: The wires in this lead are coloured in accordance with the following code:
Green/ Yellow:
Earth
Blue:
Neutral
Brown:
Live (Phase)
As the colours of the wires in main leads may not correspond with the coloured
marking identified in your plug/appliance, proceed as follows:
The wire which is coloured Green & Yellow must be connected to the Earth terminal
marked with either the letter E, the earth symbol or coloured Green/Green &
Yellow.
The wire which is coloured Blue must be connected to the terminal which is marked
with the letter N or coloured Blue or Black.
The wire which is coloured Brown must be connected to the terminal marked with
the letter L or P or coloured Brown or Red.
If in doubt, consult the instructions provided with the equipment or contact the
supplier.
This cable/appliance should be protected by a suitably rated and approved HBC
mains fuse: refer to the rating information on the equipment and/or user instructions
for details. As a guide, a cable of 0.75mm2should be protected by a 3A or 5A fuse.
Larger conductors would normally require 13A types, depending on the connection
method used.
Any exposed wiring from a cable, plug or connection that is engaged in a live socket
is extremely hazardous. If a cable or plug is deemed hazardous, turn off the mains
power and remove the cable, any fuses and fuse assemblies. All hazardous wiring
must be immediately destroyed and replaced in accordance to the above standard.

OVERVIEW
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OVERVIEW
This chapter describes the RPE-1326/ 2323/ 3323/ 4323 series in
a nutshell, including its main features and front/ rear panel
introduction. After going through the overview, follow the Setup
chapter (page 28) to properly power up and set operation
environment.
Introduction
Overview
The RPE-1326/2323/3323/4323 series regulated DC power
supply series are light weight, adjustable, multifunctional work
stations. The RPE-1326 has a single independent adjustable
voltage output (Coarse and fine). The remote voltage
compensation function is activated for large changes in current
output. The RPE-2323 has a 2 independent adjustable voltage
outputs. The RPE-3323 has three independent outputs: two with
adjustable voltage levels and one with fixed level 5V. The RPE-
4323 has four independent voltage outputs that are all fully
adjustable. The series can be used for logic circuits where various
output voltage or current are needed, and for tracking mode

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definition systems where plus and minus voltages with
insignificant error are required.
Independent /
Series Tracking /
Parallel Tracking
The three output modes of RPE-2323/3323/4323 series,
independent, series tracking and parallel tracking can be selected
through pressing the TRACKING key on the front panel. In the
independent mode, the output voltage and current of each
channel are controlled separately. In the tracking modes, both the
CH1 and CH2 outputs are automatically connected in series or
parallel. CH1 is master and CH2 is slave; no need to connect
output leads. In the series mode, the output voltage is doubled; in
the parallel mode, the output current is doubled. The isolation
degree, from output terminal to chassis or from output terminal to
output terminal, is 500V
Constant
Voltage/
Constant
Current
Each output channel works in constant voltage (CV) or constant
current (CC) mode. Even at the maximum output current, a fully
rated, continuously adjustable output voltage is provided. For a
big load, the power supply can be used as a CV source; while for
a small load, a CC source. When in the CV mode (independent or
tracking mode), output current (overload or short circuit) can be
controlled via the front panel. When in the CC mode (independent
mode only), the maximum (ceiling) output voltage can be
controlled via the front panel. The power supply will automatically
cross over from CV to CC operation when the output current
reaches the target value. The power supply will automatically

OVERVIEW
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cross over from CC to CV when the output voltage reaches the
target value. For more details about CV/CC mode operation, see
page 26.
Automatic
tracking mode
The front panel display (CH1, CH2) shows the output voltage or
current. When operating in the tracking mode, the power supply
will automatically connect to the auto- tracking mode. For more
details about CH1/CH2 Series Tracking Mode, see page 44

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Series Lineup / Main Features
Main Features
Performance
Low noise: Temperature controlled cooling fan
Compact size, light weight
Operation
Constant Voltage / Constant Current operation
Series Tracking / Parallel Tracking operation
Output On/Off control
Multi-output:
RPE-1326: 32V/6A x1;
RPE-2323: 32V/3A x2;
RPE-3323: 32V/3A x2, 5V/5A x 1
RPE-4323: 32V/3A x2, 5V/1A x1, 15V/1A x1
Coarse and fine Voltage/Current control(RPE-1326)
Output voltage compensation control (RPE-1326)
Function for locking the setting voltage (CH1/CH2)
Output voltage/ current setting view
Set the displayed digit resolution for the voltage & current
output.

OVERVIEW
13/10/2016 Version No. 001 13
Protection
Overload protection
Reverse polarity protection
Inadvertent voltage setting protection
Interface
Remote control (Output ON/OFF)

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Principle of Operation
Overview
The power supply consists of the following.
AC input circuit
Transformer
Bias power supply including rectifier, filter, pre-regulator and
reference voltage source
Main regulator circuit including the main rectifier and filter,
series regulator, current comparator, voltage comparator,
reference voltage amplifier, remote device and relay control
circuit
The block diagram below shows the CH1 circuit arrangement.
The single phase input power is connected to the transformer
through the input circuit. Details of each part are described in the
next page.

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Block diagram
Voltage
Amplifier Voltage Comparator Series Regulator
Instant Over
Load
Protection
Current
Comparator
Reference
Voltage
Source
Auxiliary
Rectifier &
Filter
“OR” Gate Amplifier
Relay
Control
Main
Rectifier &
Filter
AC Input
Transformer
O/P
Auxiliary
Rectifier
The auxiliary rectifiers D120~ D123 provide bias voltage filtered
by the capacitors C120 and C121, for the pre-regulators U150
and U151. They provide a regulated voltage for other modules.
Main Rectifier
The main rectifier is a full wave bridge rectifier. It provides the
power after the rectifier is filtered by the capacitor C101, and then
regulated via a series-wound regulator, which is finally delivered
to the output terminal.
Current Limiter
U151 is a comparator amplifier which compares the reference
voltage to the feedback voltage, and then delivers it to Q151,
which then calibrates the output voltage.

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Overvoltage
U131 is a comparator which activates when the unit is overloaded
and it controls the output of U132 to turn off the output and inform
the user.

OVERVIEW
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Front Panel Overview
RPE-4323


 
 

 
 

 





   



 




 
CH1 Voltage Knob
CH2 Voltage
Knob
CH3 Voltage
Knob
CH2 Current
Knob
CH1/CH2 Mode Setting
Output Key
View setting
value/ Key
lock
CH3 Output
CH2 Output
CH1 Output
CH4 Output GND Terminal
CH1/CH4
Toggle Key
Power
Switch
CH2/CH3
Toggle Key
CH4 Voltage
Knob
CH1 Current KnobLCD
The figure above is the front view of the RPE-4323. For views of other models,
please refer to physical device or see the panel overview for the other models on
page 24.
Display
CH1/CH4 parameter display
area (parameter settings for
the RPE-1326)

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CH2/CH3 parameter display
area (parameter readings for
the RPE-1326)
CH3 parameter display area
for the RPE-3323
Status display area
Output status display
Voltmeter
Displays output voltage of each channel.
RPE-4323: CH1/CH4 and CH2/CH3
RPE-2323/3323: CH1 and CH2
RPE-1326: Voltage setting/readback
3 digits:
4 digits:
CH3 display：
(RPE-3323)