Scientific PS3200 Series User manual

User Manual
Programmable Switch
Mode Power Supplies
PS3200 Series

Copyright © Scientific All rights reserved.
Disclaimer
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Scientific continues to improve products and reserves rights to amend part or all of the specifications,
procedures, equipment at any time without notice. Scientific shall not be liable errors contained in this
document or if for incidental or consequential damages in connection with the furnishing, performance or use
of this material.
Rev 1.0/ 0821
Information on Electrical & Electronic Equipment Recycling
Our Equipment contain high quality components and material and are designated to facilitate recycling. After
appropriate use of this equipment, when this is to be discarded, the equipment must not be treated as
municipal waste. This must be disposed of separately via the appropriate return and collection system
available. By following these instructions, you ensure that the product is treated correctly and help to reduce
potential impacts on the environment and human health, which otherwise result from inappropriate handling.
Recycling helps to conserve natural resources and protect environment.
For more information on collection and return, please contact dealer / from where you have purchased / to us
giving full details.
2
Scientific Mes-Technik Pvt. Ltd.,
B-14 Industrial Estate, Pologround,
Indore- 452015,
India
Tel : [phone]/33
Fax : [phone],561641
Email : [e-mail]
Website: www.scientificindia.com
User Manual PS3200 Series

Programmable Switch Mode Power Supplies
PS3200 Series
Table of Contents
Introduction 5
Safety instructions 6
Safety symbols 7
Chapter 1 Technical specifications 8
1.1 Specifications 8
1.2 Power supply outline drawings - dimension 12
Chapter 2 Panel controls 14
2.1 Front panel controls 14
2.2 Rear panel controls 16
2.3 Sockets, connector description used on rear panel 17
2.4 Connection diagram for interface cables 19
2.4.1 USB cable 19
2.4.2 RS232/RS485 cable 19
2.4.3 Analog programming cable 19
Chapter 3 Installation 20
3.1 AC Input mains connections 20
3.2 Cooling 20
3.3 Use of instrument on table top 20
3.4 Use of instrument in 19” Rack mounting cabinet 21
3.5 High Voltage Protection Cover for Safety 22
3.6 First time operation power ON 23
3.6.1 AC mains input 23
3.6.2 Connecting to AC mains 23
3.6.3 DC output check 23
3.6.4 DC constant current check 24
Chapter 4 Descriptions 25
4.1 Safety first - grounding 25
4.2 Input Voltage 25
4.3 Operating conditions 25
4.3.1 Temperature & humidity 25
4.3.2 Storage 25
4.4 Thermal protection 25
4.5 Cooling 26
4.6 Output 26
4.7 Connecting the load 26
4.8 Local & remote Sensing 27
4.9 Constant voltage and constant current mode 28
4.10 Hold up time 28
4.11 Over voltage protection 28
4.12 Under current limit 28
4.13 Fold back protection 28
4.14 AC fail 29
3 User Manual PS3200 Series

4.15 Analog programming 29
4.16 Description of analog connector pins and application 30
4.17 Safe start - auto start mode 32
4.18 Last save memory 33
4.19 Front panel locking 33
4.20 Remote control mode in RS232, RS485 and USB 33
4.21 Connecting Load 33
4.22 Connecting power supplies in series and parallel 34
4.23 Power supply as battery charger 34
Chapter 5 Menu controls 35
5.1 Power ON switching 35
5.2 Voltage & Current setting 35
5.3 Over Voltage setting 36
5.4 Under Voltage setting 36
5.5 Fold back protection 37
5.6 Output On/Off 38
5.7 Communication set Menu 38
5.8 Front panel lock 40
Chapter 6 Communication Interface Protocol 41
6.1 SCPI commands 41
6.1.1 Remote mode enable 41
6.1.2 Remote mode disable 41
6.1.3 Read instrument identity 41
6.1.4 Set output voltage 42
6.1.5 Set output current 42
6.1.6 Set Under Voltage limit 42
6.1.7 Set Over Voltage Protection 42
6.1.8 Set Output ON/OFF 43
6.1.9 Read set voltage 42
6.1.10 Read set current 43
6.1.11 Read Under Voltage limit 43
6.1.12 Read Over Voltage Protection set 43
6.1.13 Read measured output voltage 43
6.1.14 Read measured output current 44
6.1.15 Fold back enable/disable 44
6.1.16 Read measured output power 44
6.1.17 Read measured internal temperature 44
6.1.18 Status 44
Chapter 7 Maintenance 45
7.1 Troubleshooting 45
Chapter 8 Dispatch procedure for service & Warranty 47
8.1 Dispatch procedure for service 47
8.2 Warranty 47
4 User Manual PS3200 Series

Programmable Switch Mode Power Supplies
PS3200 Series
Compact 2 U size
Fast transient response
High slew Rate
Interface RS232, RS485, USB
Models with Output Voltage 16V to 1000 V, 3200 W Power
The PS3200 series power supplies is designed for compact 2 U size with user friendly operation and higher
efficiency. This range offer multi ranging output characteristic which makes them more flexible than traditional
or rectangular output characteristic power supplies as they give multiple voltage and current combination in a
single power supply.
This series of power supplies offer fast up programming time allowing creation of multiple complex waveforms.
Transient response better than 100 us, ensures that the output of the power supply recovers much faster and
remains constant and oscillation free for dynamic loads.
Power supplies can be remotely controlled programmed through any of interface analog programming , USB,
RS232 or RS485. Power supplies can be programmed from 0 to full scale voltage and current. SCPI
compatible commands offer flexibility in programming in system integration. Power capabilities can be added
by connecting four power supply units in parallel or in series up to 600V.
With various protection features, over voltage protection, short circuit protection, fold back etc. protects
expensive loads circuits in testing. Fold back protection allows to set precise maximum current to be allowed,
which when exceed output gets disabled. User selectable last save memory, allows user to quickly start the
testing from previous test conditions.
This power supply unit works on line voltage 195 to 270 V , 47 Hz ~ 63 Hz. Power factor correction also
provides to ensure low harmonic content.
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User Manual PS3200 Series

Safety instructions
The general safety instructions and symbols must be observed during all phases of operation of this
instrument. Failure to comply with these precautions or with specific warnings or instructions givens in this
manual violates safety standards of design, manufacture, and intended use of the instrument. Scientific
assumes no liability for the customer's failure to comply with these requirements.
- Before applying power, verify all the safety precautions are taken, make all the connections firm.
- Make sure the protective ground of the unit is connected with system ground.
- Always operate the instrument only in prescribed operating conditions.
- Do not modify the instrument, This instrument is designed to meet all the safety and operating
conditions. Any modification done may not be complying to the safety requirement and instrument may
be damaged , causing hazardous conditions.
Environmental conditions
Please do not operate the instrument in the place that vibrates, dusty, under direct
sunlight or where there is corrosive air. The Scientific Power supplies are designed for safety, applies to
following conditions.
- Indoor use.
- Ambient temperature 0 ~ 50°C non condensing 75% RH , 0~40°C non condensing 95% RH
- Altitude up to 3000 meters
- Pollution degree 2
Installation category
These instruments are designed for installation category II, Over voltage category II.
Grounding
The instrument ground must be well connected to instrument chassis of AC power mains input supply.
The instrument must be connected through three conductor power cable, with the ground wire firmly
connected to the electrical safety ground of power outlet. Any interruption in protective ground
conductor , or disconnection will cause potential hazard that might cause personal injury.
Mains Input rating
This power supply unit is designed for specific mains input connections, as specified in the Technical
specifications. Do not use AC supply exceeding the limits. For safety reasons the mains AC may
should not fluctuate more than 10 % of nominal voltage.+
Fuse
Fuses must be changed by authorized Scientific service personal only for continued
protection against risk and safety.
Live circuits
There are no serviceable part or alignment required by Operating personnel. Operator must not
remove the instrument cover. No internal adjustment or component replacement is allowed by non-
Scientific authorised qualified personnel. Never replace components with power cable connected. To
avoid injuries, always disconnect power, discharge circuits and remove external voltage source before
touching components.
6 User Manual PS3200 Series

Safety symbols
Caution !
Caution ! : Denotes a hazard. Failure to follow instructions could result in minor personal injury and/or property
damage. Follow the instructions for proper procedures.
Warning !
Warning ! : Denotes a hazard. Failure to follow instructions could result in personal injury and/or SEVERE
property damage. Follow the instructions for proper procedures.
Symbols marked on instruments
Attention refer to the manual.
Caution ! Hazardous voltage exists, Electric shock.
Indicates Protective Ground Terminal
Indicates Ground Terminal
Off ( Supply )
On ( Supply )
7 User Manual PS3200 Series

Chapter 1 Technical specifications
1.1 Specifications (Unless otherwise stated these specifications are defined over the temperature range of
0 to 40° C.)
A. DC Voltage, Current Specifications & Display : Models PS16-200, PS20-160, PS32-100, PS40-80,
PS60-52, PS80-40, & PS100-32
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PS16-200 PS20- 160 PS32-100 PS40-80 PS60-52 PS80-40 PS100-32
DC Outputs Voltage V 16 20 32 40 60 80 100
DC Output Current A 200 160 100 80 52 40 32
Power 3200 Watts
Efficiency at 230V full load 80% 80% 83% 83% 83% 85% 85%
Constant Voltage Mode
Load regulation 0 ~ 100% mV 3 3 5 5 5 5 5
Line Regulation mV 2 2 2 2 2 2 2
Ripple BW=300 kHz mVrms 8 8 8 8 8 10 12
Ripple 5Hz~1MHz mVrms 12 12 12 12 12 15 18
Ripple 20 MHz mVpp 40 40 40 50 50 55 60
Constant Current Mode
Load regulation 0 ~ 100 % mA 10 10 10 8 8 7 7
Line Regulation mA 2 2 2 2 2 2 2
Ripple BW=300 kHz mArms 25 25 20 20 20 20 18
Ripple BW=5 Hz ~1MHz mArms 3 3 3 3 3 3 3
Ripple 20 MHz mApp 200 150 150 120 110 100 90
Remote sense drop 1 V 1 V 2 V 2 V 2 V 2 V 2 V
Programming Speed
Rise time ( 10% to 90% ) into resistive load
Time 100% load ms 20 25 30 35 40 45 50
Time 10% load ms 18 22 25 30 35 40 45
Fall time ( 90% to 10% ) into resistive load
Time 100% load ms 20 20 22 22 25 35 50
Time 10% load ms 200 210 225 240 250 350 400
Time No load s 1.2 1.2 1.5 2.0 2.5 3.0 3.5
Display
Accuracy Voltage : ± (0.5% + 2D), Current : ± (0.5% + 2D)
Scale Voltage (V) 0-16.00 0-20.00 0-32.00 0-40.00 0-60.00 0-80.00 0-100.0
Current (A) 0-200.0 0-160.0 0-100.0 0-40.00 0-53.33 0-40.00 0-32.00
Resolution Voltage 10 mV 10 mV 10 mV 10 mV 10 mV 10 mV 100 mV
Current 100 mA 100 mA 100 mA 10 mA 10 mA 10 mA 10 mA
User Manual PS3200 Series

B. DC Voltage, Current Specifications & Display : Models PS120-26, PS160-20, PS300-10, PS600-5,
PS800-4 & PS1000-3
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PS120-26 PS160-20 PS300-10 PS600-5 PS800-4 PS1000-3
DC Outputs Voltage V 120 160 300 600 800 1000
DC Output Current A 26 20 10.6 5.3 4 3.2
Power 3200 Watts
Efficiency at 230V full load 85% 85% 85% 87% 87% 87%
Constant Voltage Mode
Load regulation 0 ~ 100% mV 5 8 8 15 15 15
Line Regulation mV 3 3 3 5 5 5
Ripple BW=300 kHz mVrms 12 15 18 25 35 60
Ripple 5Hz~1MHz mVrms 18 20 25 30 45 70
Ripple 20 MHz mVpp 60 70 80 100 120 150
Constant Current Mode
Load regulation 0 ~ 100 % mA 7 6 5 5 5 5
Line Regulation mA 2 2 2 2 2 2
Ripple BW=300 kHz mArms 18 15 15 15 15 15
Ripple BW=5 Hz ~1MHz mArms 3 3 3 3 3 3
Ripple 20 MHz mApp 85 70 60 50 35 30
Remote sense drop 2 V 2 V 2 V 5 V 5 V 5 V
Programming Speed
Rise time ( 10% to 90% ) into resistive load
Time 100% load ms 70 100 150 175 200 275
Time 10% load ms 63 95 140 165 240 260
Fall time ( 90% to 10% ) into resistive load
Time 100% load ms 80 100 180 200 220 250
Time 10% load ms 600 800 850 1000 1200 1500
Time No load s 4.5 6 8 10 12 15
Display
Accuracy Voltage : ± (0.5% + 2D), Current : ± (0.5% + 2D)
Scale Voltage (V) 0-120.0 0-160.0 0-300.0 0-600.0 0-800.0 0-1000
Current (A) 0-26.66 0-20.00 0-10.66 0-5.33 0-4.00 0-3.20
Resolution Voltage 100 mV 100 mV 100 mV 100 mV 100 mV 1 V
Current 10 mA 10 mA 10 mA 10 mA 10 mA 10 mA
User Manual PS3200 Series

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Temperature Coefficients CV : 100 ppm/°C CC : 100 ppm after warm up of 30 min
Output Stability CV : 100 ppm/°C CC : 100 ppm after warm up of 30 min and during 8 hrs
Analog Programing (Rear panel 25 pin D connector)
Programing V : 0 ~ 5 V, Accuracy : 0.5 % of Vout rated, Input impedance : 1M+ Ω
I : 0 ~ 5 V, Accuracy : 1 % of Iout rated Input impedance : 1 M+ Ω
Monitoring V out : 0 ~ 5 V, Accuracy : 1 % of Vout rated+
Output impedance : 150 / 4 mA maxΩ
I out : 0 ~ 5 V, Accuracy : 1 % of Iout rated+
Output impedance : 150 / 4 mA maxΩ
V reference 5.1 V 15 mV+
Status outputs Power Supply OK Logic 1 (High); AC Fail – Logic 0 (Low)
DC Fail – Logic 0 (Low), for DC fails by 5 % set value+
CV / CC Status : CV :Logic 0 / CC Logic 1
Interlock : Short = Power Supply enabled , Open = Power Supply disabled
DC ON status : ON = Logic 1 , OFF = Logic 0
OVP status Fault : Logic 0, else OK =Logic 1
OTP status Fault : Logic 0, else OK =Logic 1
Remote Status : Remote = Logic 1, Local = Logic 0
Remote shutdown +5 V
Remote Programing
RS232 / LAN / USB / RS485
Voltage Programing
Current Programing
Monitor Voltage
Monitor Current
OVL & UVL
ADC : 16 Bits , DAC : 16 Bits
Resolution : better than 15 Bits
Accuracy : 0.05% Vout + 0.05% Vrated
Resolution : Better than 15 bits
Accuracy : 0.1% Iout + 0.1% I rated
Resolution : Better than 15 bits
Accuracy : 0.25% Vout + 0.1% V rated
Resolution : Better than 15 bits
Accuracy : 0.25% Iout + 0.2% I rated
Resolution : better than 15 Bits
Accuracy : 0.05% Vout + 0.05% Vrated
Front Panel Controls
Indicators
Mains ON/ OFF, Voltage and Current setting with Encoder, switch settings :
Set, Over voltage, Under Voltage , Fold back, Remote & Output
LEDs for CV, CC, Over Voltage, Under Voltage, Fold back, Remote and
Output ON
Protections Over voltage , Over current, Short Circuit, Fold back, Over temperature
Output Terminals Bus bar with M5 bolts
Mains Input AC input, Single phase, 195 to 270 V, 50 / 60 Hz ( 47 ~ 63Hz)
Input connector : IEC320/C14 , EN 60320/14
Internal Fuse L : 20 A, 6.3 x 32 mm ceramic fuse.
Power Factor 0.99 @ full load / 0.98 @ 50% load
Turn On delay 600 ms after mains switched ON
Inrush current <50A
Hold up Time 20 ms
C. Analog Programming and other specifications
User Manual PS3200 Series