GW Instek SPS Series User Manual
SAFETY TERMS AND SYMBOLS
These terms may appear in this manual or on the product:
WARNING. Warning statements identify condition or practices that could result in injury or loss of life.
CAUTION. Caution statements identify conditions or practice that could result in damage to this
product or other property.
WARNING: This equipment is not for measurements performed for CAT II, III and IV.
Measurement category I is for measurements performed on circuits not directly connected to MAINS.
Measurement category II is for measurements performed on circuits directly connected to the low voltage installation.
Measurement category III is for measurements performed in the building installation.
Measurement category IV is for measurements performed at the source of the low-voltage installation.
The following symbols may appear in this manual or on the product:
DANGER
High Voltage
DANGER
Hot Surface
ATTENTION
refer to Manual
i
Protective
Conductor
Terminal
Earth(ground)
terminal
FOR UNITED KINGDOM ONLY
e
h
r
;
a
a
m
d
m
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 colours marking
identified in your plug/appliance, proceed as follows:
The wire which is coloured Green & Yellow must be connected to the Earth terminal mark
with the letter E or by the earth symbol or coloured Green or Green & Yellow.
The wire which is coloured Blue must be connected to the terminal which is marked with t
Letter N or coloured Blue or Black.
The wire which is coloured Brown must be connected to the terminal marked with the lette
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
guide,
cable of 0.75mm ² should be protected by a 3A or 5A fuse. Larger conductors would norm
require 13A types, depending on the connection method used.
Any moulded mains connector that requires removal/replacement must be destroyed by re
of any fuse & fuse carrier and disposed of immediately, as a plug with bared wires is hazar
if a engaged in live socket. Any re-wiring must be carried out in accordance with the infor
detailed on this label.
ii
EC Declaration of Conformity
We
GOOD WILL INSTRUMENT CO.,LTD.
No. 7-1, Jhongsing Rd., Tucheng City, Taipei County 236, Taiwan
GOOD WILL INSTRUMENT (SUZHOU) CO., LTD.
No.69 Lushan Road, Suzhou New District Jiangsu, China.
declare, that the below mentioned products
SPS-1230, SPS-1820, SPS-3610, SPS-2415, SPS-606
are herewith confirmed to comply with the requirements set out in the Council Directive on the Approximation
of the Law of Member States relating to Electromagnetic Compatibility (89/336/EEC, 92/31/EEC, 93/68/EEC)
and Low Voltage Equipment Directive (73/23/EEC, 93/68/EEC).
For the evaluation regarding the Electromagnetic Compatibility and Low Voltage Equipment Directive, the
following standards were applied:
EN 61326-1: Electrical equipment for measurement, control and laboratory use —
EMC requirements (1997+A1: 1998+A2:2001)
Conducted Emission Electrostatic Discharge EN 61000-4-2:1995+A1:1998
Radiated Emission
Current Harmonic EN61000-3-2: 2000
Voltage Fluctuation EN61000-3-3:1995 Conducted Susceptibility EN 61000-4-6:1996
------------------ ------------------------- Power Frequency Magnetic field EN 61000-4-8:1993
------------------ ------------------------- Voltage Dip/Interruption EN 61000-4-11:1994
EN 55011:1998 Class A
Radiated Immunity EN 61000-4-3:1996+A1:1998
Electrical Fast Transients EN 61000-4-4:1995
Surge Immunity EN 61000-4-5:1995
Low Voltage Equipment Directive 73/23/EEC & amended by 93/68/EEC
Low Voltage Directive IEC/ EN 61010-1: 2001
iii
CONTENTS
1. INTRODUCTION.....................................................................................................................................................................1
2. SPECIFICATION.....................................................................................................................................................................2
2-1. GENERAL..............................................................................................................................................................................2
2-3. CONSTANT CURRENT OPERATION ........................................................................................................................................3
2-4. INDICATOR METER ...............................................................................................................................................................3
2-5. OVER VOLTAGE PROTECTION...............................................................................................................................................3
2-6. INSULATION..........................................................................................................................................................................3
3. PRECAUTIONS BEFORE OPERATION .............................................................................................................................4
3.1 UNPACKING THE SWITCHING POWER SUPPLY........................................................................................................................4
3.2 CHECKING THE LINE VOLTAGE..............................................................................................................................................4
3.3 ENVIRONMENT.......................................................................................................................................................................5
3.4 EQUIPMENT INSTALLATION, AND OPERATION........................................................................................................................5
4. THEORY OF OPERATION (SEE FIGURE 4-1)..................................................................................................................6
5. PANEL CONTROLS AND INDICATORS............................................................................................................................9
5-1. FRONT PANEL........................................................................................................................................................................9
5-2. REAR PANEL .........................................................................................................................................................................9
6. OPERATION INSTRUCTIONS ...........................................................................................................................................12
6-1. PRECAUTION.......................................................................................................................................................................12
6-2. SETTING CURRENT LIMIT....................................................................................................................................................15
6-3. CONSTANT VOLTAGE / CONSTANT CURRENT CROSSOVER CHARACTERISTIC.....................................................................15
6-4. OPERATION MODE: VOLTAGE OPERATION MODE...............................................................................................................16
6-5. REMOTE ERROR SENSING ...................................................................................................................................................16
6-6. REMOTE CONTROL..............................................................................................................................................................18
6-7. OVP SETTING.....................................................................................................................................................................18
7. MAINTENANCE....................................................................................................................................................................19
7-1. FUSE REPLACEMENT...........................................................................................................................................................19
7-2. LINE VOLTAGE CONVERSION ..............................................................................................................................................19
7-3. INTERNAL ADJUSTMENTS....................................................................................................................................................20
7-4 CLEANING............................................................................................................................................................................22
iv
1. INTRODUCTION
The series of switching power supplies for measuring instrument have ruled out the inconvenience of big
volume and heavyweight of a traditional power supply possess.
The output voltage and current is controlled by two variable resistors with coarse and fine regulation for more
handy and precise adjustment.
Features:
z With more extensive range of input voltage at 97V~133V (for 115V) and 195V~265V (for 230V).
z With high frequency operation can reduce the size of power tr ans former.
z With small size, light weight and high density power.
z Entire efficiency rate higher up to 70%.
z Auto control the voltage and current mode.
z Zero adjustment for the output of voltage and current.
1
2. SPECIFICATION
2-1. General
Main supply
Rating, dimension and weight : See Table 2-1.
Table 2-1
Model
SPS-1230 12V 30A
SPS-1820 18V 20A
SPS-2415 24V 15A
SPS-3610 36V 10A
SPS-606 60V 6A
Dimensions：128(W) × 145(H) × 285(D) mm.
WARNING: Voltage over 60V DC is a lethal shock hazard to the user. Be careful when
connecting power supplies in series to achieve voltage higher than 60V DC totally or 60V
DC between any connection and earth ground.
Operation Environment : Indoor use,
Operation Temperature &Humidity
Storage Temperature & Humidity
Accessories : Test Lead (current < 4A)……………………………………………
: 115V/230V±15% 50/60Hz (Switch selectable).
MAX. RATING INPUT RATING FUSE STYLE & RATING WEIGHT
Voltage Current Watts VA 115V 230V kg
500 900 T 10A 250V T 6.3A 250V 3.3
Altitude up to 2000m,
Installation Category II,
Pollution degree 2.
: 0℃ to 40℃, <80%.
: -10℃ to 70℃, <70%.
× 1
Operation Manual..…………………………………………………………. × 1
2
2-2. Constant Voltage Operation
(1) Output Voltage ranges from 0 to rating voltage with continuo us adj ust ment.
(2) Voltage regulation
line regulation≦5mV.
load regulation≦5mV.
(3) Recovery time≦500μs(50% Load chan ge, minimum load 0.5A).
(4) Ripple & Noise≦5mVrms, 100mVp-p (tested by 20MHz oscilloscope.)
(5) Temperature coefficient≦100ppm/℃.
2-3. Constant Current Operation
(1) Output current ranges from 0 to rating current with continuous adjustment.
(2) Current regulation
line regulation≦3mA.
load regulation≦3mA.
(3) Ripple & Noise
2-4. Indicator Meter
1)Voltage:
Display : 3 1/2 Digits 0.39” Green LED display.
Accuracy : ±(0.5% of rdg + 2 digits).
2)Current:
Display : 3 1/2 Digits 0.39” Red LED display.
Accuracy : ±(0.5% of rdg + 2 digits).
2-5. Over Voltage Protection
(1) Over Voltage Protection ranges from 5% rating to rating +5.5%.
(2) OVP Accuracy ±(Vset 1%+0.6V)
2-6. Insulation
Between Chassis and Output Terminal
Between Chassis and AC Cord
SPS-606 SPS-3610 SPS-2415 SPS-1820 SPS-1230
≦3mArms ≦5mArms ≦10mArms ≦10mArms ≦30mArms
: ≧20MΩ (DC500V).
: ≧30MΩ (DC500V).
3
3. PRECAUTIONS BEFORE OPERATION
3.1 Unpacking the Switching Power Supply
The instrument has been fully inspected and tested before shipping from the factory. Upon receiving the
instrument, please unpack and inspect it to check if there is any damages caused during transportation. If any sign
of damage is found, notify the bearer and/or the dealer immediately.
3.2 Checking the Line Voltage
The instrument can be used with line voltages shown in the table below. Befo re connecting the power plug to an
AC line outlet, make sure the voltage selector of the rear panel is set to the correct position and the proper fuse
installed corresponding to the line voltage. The unit may be damaged if connected to the wrong AC line voltage.
WARNING: To avoid electrical shock the power cord protective grounding conductor must be
connected to ground.
When line voltages are changed, replace the required fuses shown below.
Line voltage Range Fuse Line voltage Range Fuse
115V 97-133V T 10A 250V 230V 195-250V T 6.3A 250V
WARNING: To avoid personal injury, disconnect the power cord before removing the fuse
holder.
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