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3A SERIES

OPERATION MANUAL

Entire Contents Copyright

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2014 by Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.

3A SERIES AC & DC LOAD OPERATION MANUAL

Page 54 of 56

Index

A

Accessories ..................................................................... 14

B

Bank ............................................ 27, 29, 32, 33, 34, 38, 39

C

Command syntax ............................................................ 33
Connections .............................................................. 30, 48
Constant Current 11, 12, 13, 15, 26, 27, 28, 29, 30, 41, 42
Constant Resistance 11, 12, 15, 26, 27, 28, 29, 30, 41, 42
Contact .................................................................. 6, 23, 53
Contents .............................................................................3
Cooling ............................................................................ 17

D

Display ............................................................................. 30
Displays ..................................................................... 26, 27

F

Features .................................................................... 13, 43
Frequency ................................... 15, 26, 27, 29, 33, 34, 53
Front panel operation ...................................................... 26

G

Go/NoGo ............................................................. 13, 26, 29

I

Installation .................................................................... 7, 22

L

LED 25, 26, 27, 28, 44
Level........................................................................... 26, 28

P

Power factor ..................................................................... 13
Programming ....................................................... 25, 40, 50
Protection ............................................................. 15, 27, 43

S

Size 46
Specifications ............................................................. 15, 49
Synchronization ......................................................... 33, 40

T

Terminals .......................................................26, 30, 45, 48
Turn on ............................................................................. 23

V

Voltage sense

.................................................................. 48

W

Warranty ............................................................................ 7
Waveform ................................... 29, 33, 34, 35, 37, 38, 39
Weight .............................................................................. 18

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Summary of Contents for 3A Series

Page 1: ...5 P N 160922 10 3A Series Programmable AC DC load ADAPTIVE Power Systems Worldwide Supplier of Power Equipment TM Copyright 2014 Adaptive Power Systems Inc APS All Rights Reserved No reproduction without written authorization from APS ...

Page 2: ...pyright 2014 by Adaptive Power Systems Inc APS All Rights Reserved No reproduction without written authorization from APS 3A SERIES AC DC LOAD OPERATION MANUAL Page 2 of 56 PAGE LEFT INTENTIONALLY LEFT BLANK FOR HARDCOPY VERSIONS OF THIS DOCUMENT ...

Page 3: ...4 4 Technical Specifications 15 4 1 Operating Ranges 15 4 2 Operating Modes 15 4 3 Protection Modes 15 4 4 Power Factor Range 16 4 5 Metering 16 4 6 Analog I O 16 4 7 Power Cooling 16 4 8 Dimensions Weight 17 4 9 Environmental 17 4 10 Voltage versus Current Operating Envelope Charts 18 4 10 1 Model 3A060 20 V I Curves 18 4 10 2 Model 3A150 08 V I Curves 19 4 10 3 Model 3A300 04 V I Curves 20 5 Unp...

Page 4: ...41 6 4 3 Over Power Protection 41 6 4 4 Over Temperature Protection 41 6 5 Load ON Voltage Adjustment 42 7 Connectors 43 7 1 INPUT Terminals 43 7 1 1 Banana Jack Connectors 43 7 1 2 Y hook Spade Lug Terminals 43 7 1 3 Lead Wire Insertion 43 7 1 4 Banana Jack Connector and Spade Lug Terminals 43 7 1 5 Plug Connector and Lead Wire Insertion 43 7 2 Wire Size 44 7 3 Connecting a UUT 45 7 4 Voltage Sen...

Page 5: ...3A060 20 Power on Settings 39 Table 6 8 Model 3A150 08 Power on Settings 39 Table 6 9 Model 3A300 04 Power on Settings 39 Table of Figures Figure 4 1 Module 3A060 20 V I Curve 18 Figure 4 2 Module 3A150 08 V I Curve 19 Figure 4 3 Module 3A300 04 V I Curve 20 Figure 5 1 Installation or removal of a load module 21 Figure 6 1 3A Series Load Front Panel 24 Figure 6 2 Front Panel User Controls and Indi...

Page 6: ...ntact Information AMERICA CANADA Adaptive Power Systems Inc Irvine USA Phone 1 949 752 8400 Fax 1 949 756 0838 Email support adaptivepower com EUROPE Caltest Instruments Ltd Guildford United Kingdom Phone 44 0 1483 302 700 Fax 44 0 1483 300 562 Email support adaptivepower com CHINA PPST Shanghai Co Ltd Shanghai China Phone 86 21 6763 9223 Fax 86 21 5763 8240 Email support adaptivepower com Web htt...

Page 7: ...repair This warranty is exclusive of all other warranties expressed or implied 2 2 Service and Spare Parts Limited Warranty APS warrants repair work to be free from defects in material and workmanship for the period of ninety 90 days from the invoice date This Service and Spare Parts Limited Warranty applies to replacement parts or to subassemblies only All shipping and packaging charges are the s...

Page 8: ...tten authorization from APS 3A SERIES AC DC LOAD OPERATION MANUAL Page 8 of 56 SAFETY SYMBOLS Direct current DC Alternating current AC Both direct and alternating current Three phase alternating current Off Supply On Supply Protective Earth ground terminal Caution Refer to this manual before this Product Caution risk of electric shock Fuse ...

Page 9: ...e product is set to match the available line voltage and the correct fuse is installed GROUND THE INSTRUMENT This product is a Safety Class 1 instrument provided with a protective earth terminal To minimize shock hazard the instrument chassis and cabinet must be connected to an electrical ground The instrument must be connected to the AC power supply mains through a properly rated three conductor ...

Page 10: ...OAD INPUT VOLTAGE RATING This instrument does NOT have a means to disconnect its Load input from a connected power supply If the voltage applied to the Load input exceeds its maximum rating even if the load is turned completely off damage to the load WILL occur Damage caused by exceeded maximum load input voltage under any circumstance is NOT covered by the manufacturer s product warranty Remove a...

Page 11: ... slot 34M01 Operation Manual P N 160921 for specific information on using the 3A load modules with these mainframes The VI curve constant power contours of the various 3A Series models are shown in the Technical Specification Section Maximum current and power capability depends on the specific model 3 2 Operating Modes Available operating modes for all models are Constant Current CC mode Linear Co...

Page 12: ...ference voltage may be changed to change the range of input voltage resulting in a constant amplitude output The AGC circuit responds almost instantly to adjust for a sudden increase in input voltage This fast voltage transient response makes the LIN mode especially suitable for non sinusoidal AC voltage inputs such as step waveform square waveform and any AC input voltage with a highly distorted ...

Page 13: ...4 mainframe These inputs allow analog synchronization of the AC current with an external reference Without an external sync signal the AC load will sink to the sensed AC input voltage using it internal zero crossing detection circuit Note This mode is supported in Constant Current CC and Linear Current LIN modes only 3 4 Product Features The following key characteristics apply to all 3A Series mod...

Page 14: ...ive Power Systems customer service Item Quantity Operation Manual in hardcopy or PDF Format on CD ROM 1 AC Line Cord 1 Banana Terminal Red 1 Banana Terminal Black 1 Voltage Sense alligator clip lead cable Red Black 1 meter 39 4 1 M6 Round Screw 1 Certificate of Conformance 1 Table 3 1 Included Accessories 3 6 Interface Options Following options can be ordered at time of original purchase or may be...

Page 15: ...08 3A300 04 OPERATING MODES CC Mode High Range 0 10 Arms 10 20 Arms 0 4 Arms 4 8 Arms 0 2 Arms 2 4 Arms Resolution 2 5 mA 5 mA 1 mA 2 mA 0 5 mA 1 mA Accuracy 50Hz 60Hz 0 5 OF SETTING RANGE 60 Hz 0 5 OF SETTING 1 OF RANGE CC Mode Low Range 0 000 1 000 A 0 000 0 400 A 0 000 0 200 A Accuracy 2 OF SETTING RANGE CC Linear Mode Refer to CC Mode data CF Mode Range 2 3 5 1 5 1 9 3 0 3 4 Resolution 0 5 0 1...

Page 16: ...olution 0 01 A 0 001 A 0 001 A Accuracy 50Hz 60Hz 0 5 OF READING RANGE 60 Hz 0 5 OF READING 2 OF RANGE Power Range 0 300 W Resolution 0 1 W Accuracy 50Hz 60Hz 0 5 OF READING RANGE 60 Hz 0 5 OF READING 2 OF RANGE Apparent Power Range 0 300 VA Resolutions 0 1 VA Accuracy Derived from Volt and Current Measurement 4 6 Analog I O MODEL 3A060 20 3A150 08 3A300 04 ANALOG I O Current Monitor Out Scale 5 A...

Page 17: ...ns Weight MODEL 3A060 20 3A150 08 3A300 04 DIMENSIONS AND WEIGHT Dimensions H x W x D 143 x 108 x 405 mm 5 6 x 4 25 x 15 9 Weight Net 3 5 kg 7 7 lbs 3 5 kg 7 7 lbs 3 5 kg 7 7 lbs 4 9 Environmental MODEL 3A060 20 3A150 08 3A300 04 ENVIRONMENTAL Operating Temperature 0 40 C 32 104 F Relative Humidity 80 max non condensing Environmental Indoor Use Only Pollution Degree 2 Altitude 2000 meter 6500 feet...

Page 18: ... SERIES AC DC LOAD OPERATION MANUAL Page 18 of 56 4 10Voltage versus Current Operating Envelope Charts Following charts show constant power operating envelopes for each load module Operation below the low voltage level is not possible as the load will turn off if insufficient input voltage is sensed 4 10 1 Model 3A060 20 V I Curves Figure 4 1 Module 3A060 20 V I Curve ...

Page 19: ...Copyright 2014 by Adaptive Power Systems Inc APS All Rights Reserved No reproduction without written authorization from APS 3A SERIES AC DC LOAD OPERATION MANUAL Page 19 of 56 4 10 2 Model 3A150 08 V I Curves Figure 4 2 Module 3A150 08 V I Curve ...

Page 20: ...Copyright 2014 by Adaptive Power Systems Inc APS All Rights Reserved No reproduction without written authorization from APS 3A SERIES AC DC LOAD OPERATION MANUAL Page 20 of 56 4 10 3 Model 3A300 04 V I Curves Figure 4 3 Module 3A300 04 V I Curve ...

Page 21: ...separately 5 2 Installation and Removal of 3A Series Load Modules This section deals with the procedures for installing a 3A Series electronic load in a 34M01 or 34M04 mainframe or removing a module same from its mainframe Once properly installed 3A Series load modules can be used without any further adjustment Unless mainframe and load modules are purchased separately or more modules were order t...

Page 22: ...pport the weight of the module just prevent it from pulling out when removing cables from the front panel 5 Turn on the power of the mainframe only after all load modules are securely installed Procedure for removal of 3A Series load modules To REMOVE a module reverse steps 4 through 3 in the installation procedure above 5 3 Cleaning To clean this product uses a soft or slightly damp cloth CAUTION...

Page 23: ...nt under test is OFF Note Some power equipment s output may still be energized even if the equipment has been turned off or its output is turned off This is especially true for DC power supplies Note When working with batteries it is recommended to provide a suitable disconnect relay or switch so the load connection can be disconnected from the battery for handling purposes 2 Connect one end of th...

Page 24: ...ration refer to Section 8 Remote Control Programming of this manual for an overview of available programming commands 6 1 Front Panel Layout The front panel layout is shown in Figure 6 1 below All user controls are directly below the LED display Load connection external voltage sense connections and current monitor are arranged along the bottom edge of the front panel Figure 6 1 3A Series Load Fro...

Page 25: ...oad Input Terminals 17 External Voltage Sense Connector 18 Current Monitor Output BNC Figure 6 2 Front Panel User Controls and Indicators The various controls and indicators are explained in more detail in the table below The Item numbers correspond to the indices in Figure 6 2 above Key Description 1 Indicates the model number and key performance specifications of the load 2 Go NoGo indicator ill...

Page 26: ...over temperature conditions are detected this display will show oCP oPP or oTP LIMIT ON mode In LIMIT mode the lower display shows the LOWER limit settings for No Go mode measurement limits in the following sequence Vrms Arms W VA PROTECTION mode If an over voltage condition has triggered the OVP protection mode the upper display will display oVP FREQ ON mode If FREQ mode is set to ON see 15 the l...

Page 27: ...is ON and the upper display shows the true power consumed by the load in Watt while the lower display shows the apparent power consumed by the load in VA WATT OFF Watt mode is OFF and the upper display shows the voltage in Vrms while the lower display shows the current sunk by load in Arms PRESET ON In PRESET ON condition the PRES LED indicator is lit and both upper and lower 4 1 2 digit monitors ...

Page 28: ...eries load can sense either at the load terminals or at the EUT if the external voltage sense cabling is connected to the point of load The SENSE key switches between INTERNAL annunciator OFF and EXTERNAL annunciator ON voltage sense modes 13 Coarse and Fine Tuning Up Down Arrow keys There are two sets of up down arrow keys directly below the display area The larger set of keys allows coarse setti...

Page 29: ...al SYNC ON External Sync OFF Internal Sync LIN CR modes After pressing the FREQ key the annunciator will turn on Pressing the FREQ key again will turn it off 16 AC or DC Load Input Connections Before connecting any source or supply to the 3A load module banana jack connectors make sure that the rated specification of the voltage and current of the 3A Series model will not be exceeded Before wiring...

Page 30: ...ange of the load current will increase so that reaching the desired end value can be completed in the shortest amount of time This occurs as long as neither minimum nor maximum set values are reached and key pressing is not interrupted Model 3A060 20 Range I Range II FULL SCALE LOAD CURRENT 10 A 20 A CURRENT RANGE 20 00 A METER RESOLUTION 0 01 A COURSE FINE LOAD CURRENT ADJUSTMENT KEY KEY S STEP R...

Page 31: ...ncy of the AC voltage sensed as follows 6 1 1 AC Mode Setting For use as an AC load the frequency setting of the load must be set in accordance with the frequency of EUT Even if the output frequency of the EUT is 50 Hz the frequency setting of the electronic load must still be set to 50 0 Hz using the FREQ function key or command See Section 6 1 Front Panel Layout 6 1 2 DC Mode Setting For use as ...

Page 32: ...ut voltage allows the 3A Series load to synchronize to it properly using its internal synchronization circuits Once set the SYNC setting has to be set to OFF for the frequency setting to be valid Remote Control Mode When using the remote control interface it is possible to auto detect the AC input voltage frequency by sending the following command AFREQ Purpose To enable or disable the auto freque...

Page 33: ... P F 0 70 P F 0 65 Lagging PF C F 2 5 4 P F 0 75 P F 0 70 P F 0 65 P F 0 50 P F 0 40 C F 3 5 5 P F 0 50 P F 0 45 P F 0 40 P F 0 35 P F 0 30 C F 2 6 P F 0 85 P F 0 80 P F 0 75 P F 0 70 P F 0 65 Leading PF C F 2 5 7 P F 0 75 P F 0 70 P F 0 65 P F 0 50 P F 0 40 C F 3 5 8 P F 0 50 P F 0 45 P F 0 40 P F 0 35 P F 0 30 Square 9 1 0 1 1 1 2 1 3 1 4 DC 10 2 dc 2 dc 2 5 dc 3 0 dc 3 5 dc Table 6 5 Waveform B...

Page 34: ...S AC DC LOAD OPERATION MANUAL Page 34 of 56 Banks 3 4 5 Sinusoidal Waveforms with Negative Displacement Power Factor Banks 3 through 5 contain waveforms at various crest factor values in the range of 2 0 to 3 5 with negative displacement power factor values from 0 85 to 0 30 Total is 15 waveforms Waveform definition is shown in below Figure 6 4 Waveforms in Banks 3 through 5 ...

Page 35: ...S AC DC LOAD OPERATION MANUAL Page 35 of 56 Banks 6 7 8 Sinusoidal Waveforms with Positive Displacement Power Factor Banks 6 through 8 contain waveforms at various crest factor values in the range of 2 0 to 3 5 with positive displacement power factor values from 0 85 to 0 30 Total is 15 waveforms Waveform definition is shown in below Figure 6 5 Waveforms in Banks 6 through 8 ...

Page 36: ...o reproduction without written authorization from APS 3A SERIES AC DC LOAD OPERATION MANUAL Page 36 of 56 Bank 9 Square Waveforms Bank 9 contains square waveforms at various crest factor values in the range of 1 0 to 1 4 Total is 5 waveforms Waveform definition is shown in below Figure 6 6 Square Waveforms Bank 9 ...

Page 37: ...rved No reproduction without written authorization from APS 3A SERIES AC DC LOAD OPERATION MANUAL Page 37 of 56 Bank 10 DC Waveforms Bank 10 contains DC waveforms at various crest factor values in the range of 2 to 3 5 Total is 5 waveforms Waveform definition is shown in below Figure 6 7 DC Waveforms Bank 10 ...

Page 38: ...L SYNC In EXTERNAL SYNC mode the user must provide an input SYNC signal to the Analog Programming Input BNC terminal of the back panel of the 34M01 single slot mainframe or the DB9 connector on the 34M04 four slot mainframe The load will synchronize the current waveform to be in phase with the external SYNC signal Note The external SYNC input signal must have a duty cycle of 50 In INTERNAL SYNC mo...

Page 39: ...LEVEL B 0 000 A WLIMIT 400 0W CR LEVEL A 4800 Ω VALIMIT 400 0W CR LEVEL B 4800 Ω Table 6 7 Model 3A060 20 Power on Settings 6 3 2 Model 3A150 08 Initial Settings Setting Initial Value Setting Initial Value MODE CC C F 2 LOAD OFF FREQ FREQ 60 0 Hz LEVEL A BANK 0 SENSE OFF SYNC OFF PRES OFF CC LEVEL A 0 000 A WATT OFF CC LEVEL B 0 000 A LIMIT VLIMIT 200 00V LIN LEVEL A 0 000 A ALIMIT 10 00A LIN LEVE...

Page 40: ...s turned back on and immediately following its power on self test So rather than returning to the factory default setting shown in the tables above it will return to the last state in which it was used 6 3 5 Setup Memory Reset If for any reason the non volatile setup memory has been corrupted it can be cleared and returned to factory defaults RESET using by pressing the SENSE and PRES keys on the ...

Page 41: ...operation 6 4 2 Over Current Protection The load always monitors the current it is sinking When the current sink is greater than 105 of the rated maximum current the load module will turn load to OFF state internally When an over current condition has occurred the upper display will indicate oCP and flash on and off Once the over current condition disappears the upper display monitor will revert t...

Page 42: ...4 The Load ON voltage setting trimmer is located on the first PCB P N 6523261A01 once you remove the Aluminum cover plate of 3A Series load module 5 Place the load module be adjusted into the most right hand side of 34M04 mainframe the load ON voltage setting trimmer VR4 can be adjusted here while power to the 34M04 mainframe is turned ON You may have to remove any other module from the mainframe ...

Page 43: ...lease avoid exceeding maximum rated current to prevent damage caused by overheating The maximum supported wire gauge for this connection method is AWG 14 7 1 2 Y hook Spade Lug Terminals Included in the 3A Series load ship kit is a set of two 2 spade lug type terminals These can be used to crimp on to stripped wire ends of an EUT Hook type terminals provide good contacting characteristics It is re...

Page 44: ...ing input connection is the wire size The minimum wire size is required to prevent overheating and to maintain good regulation It is recommended that the wires are sized large enough to limit the voltage drop at the maximum current rating of the AC DC load to less than 0 5V per connection lead If needed wire size can be increased by doubling the number of wires using two space lugs per side as sho...

Page 45: ...off When setting up for a new test and connecting any equipment to the AC DC load proceed as follows 1 Always make sure the AC DC load is turned OFF at the POWER switch when making any wire connections 2 Check that the output of the equipment under test is OFF Note Some power equipment s output may still be energized even if the equipment has been turned off or its output is turned off This is esp...

Page 46: ...oad input terminals the external voltage sense mode must be used The external voltage sense wire harness is provided for this purpose It connects to the Voltage sense connector on the front panel of the load module For small loads that deliver only low levels of current INTERNAL sense can be used For larger loads that draw a considerable amount of current EXTERNAL sense mode will compensate for vo...

Page 47: ...e I Monitor voltage current scaling values for each 3A Series load modules in Section 4 Technical Specifications 7 5 1 Isolated Output The I monitor BNC output signal on 3A Series loads is through an isolation amplifier e g the earth potential of the output analog signal and the earth potential of the load input are electrically isolated from each other In this way when a connection is made to an ...

Page 48: ... reproduction without written authorization from APS 3A SERIES AC DC LOAD OPERATION MANUAL Page 48 of 56 8 Remote Control Programming 8 1 Overview For remote control programming information refer to the 34M04 4 slot Mainframe Operation Manual P N 160924 or the 34M01 single slot Mainframe Operation Manual P N 160921 ...

Page 49: ... and current of the electronic load Figure 9 1 Parallel Load Connection 9 1 2 Multi Phase Mode Multi phase AC test applications can be quite common at higher power levels or even at low power levels for avionics and shipboard AC power supplies This requires one AC load per phase Since each load synchronizes its current to the phase voltage it detects at its input Note External Sync mode is not rec...

Page 50: ... the Line to Line voltage across the AC load input Pay attention to the maximum voltage rating of the AC load when using them in this application Note Each phase must be programmed separately as there is no three phase control mode that will program all loads to the same setting Alternatively the remote interface can be used to do so under program control Wiring diagrams for both configurations ar...

Page 51: ...ned to the manufacturer to obtain a factory calibration 10 3 Calibration Coefficients All calibration is performed through software No manual internal adjustments have to be made as part of routine calibration Calibration coefficients for the following parameters and functions are stored in non volatile memory Parameters Coefficients Stored Load Current All modes AC DC Offset and Gain High Range L...

Page 52: ...her normative documents SAFETY Standard applied IEC 61010 1 2001 EMC Standard applied EN 61326 1 2006 Reference Basic Standards EMISSIONS CISPR11 2003 A1 2004 A2 2006 EN 61000 3 2 2006 EN 61000 3 3 2008 IMMUNITY IEC 61000 4 2 2008 IEC 61000 4 3 2008 IEC 61000 4 4 2004 Corr 1 2006 Corr 2 2007 IEC 61000 4 5 2005 IEC 61000 4 6 2003 A1 2004 A2 2006 IEC 61000 4 8 2001 IEC 61000 4 11 2004 Supplemental I...

Page 53: ...e visit the website for the latest information about the SVHC substances published by ECHA https echa europa eu candidate list table Substance Name Threshold Value Directive Requirements Lead Pb 0 1 1000 ppm 2011 65 EU Cadmium Cd 0 01 100 ppm Mercury Hg 0 1 1000 ppm Hexavalent Chromium Cr6 0 1 1000 ppm Polybrominated biphenyls PBBs 0 1 1000 ppm Polybrominated diphenyl ethers PBDEs 0 1 1000 ppm Bis...

Page 54: ... Current11 12 13 15 26 27 28 29 30 41 42 Constant Resistance 11 12 15 26 27 28 29 30 41 42 Contact 6 23 53 Contents 3 Cooling 17 D Display 30 Displays 26 27 F Features 13 43 Frequency 15 26 27 29 33 34 53 Front panel operation 26 G Go NoGo 13 26 29 I Installation 7 22 L LED25 26 27 28 44 Level 26 28 P Power factor 13 Programming 25 40 50 Protection 15 27 43 S Size46 Specifications 15 49 Synchroniz...

Page 55: ...3A SERIES OPERATION MANUAL ...

Page 56: ...RIES OPERATION MANUAL ADAPTIVE Power Systems Worldwide Supplier of Power Equipment TM Copyright 2014 Adaptive Power Systems Inc APS All Rights Reserved No reproduction without written authorization from APS ...

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