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1. TRG command 4 38 TRIG DEL This command sets the time delay between the detection of an event on a trigger source and the start of any corresponding trigger action on the power supply s output Command Syntax Parameters Default Suffix RST Value Examples Query Syntax Returned Parameters Related Commands VOLT SUBSYSTEM TRIGger STARt DELay lt channel gt lt NR1 gt lt channel gt 1 31 channel number lt NR1 gt 0 32000 delay time in millisecond ms 0 TRIG DEL 1 1000 TRIGger STARt DELay lt channel gt lt NRI gt delay time in millisecond ABOR CURR TRIG TRG TRIG VOLT TRIG This subsystem programs the output voltage of the power supply VOLT This command directly programs the immediate voltage level of the power supply The immediate level is the voltage applied at the output terminals Command Syntax Parameters Default Suffix RST Value Examples Query Syntax Returned Parameters Related Commands VOLT PROT VOLTage LEVel lt channel gt lt NRf gt lt channel gt 1 31 channel number lt NRf gt minimum to maximum voltage value of the channel V 5 0 VOLT 1 0 500 VOLT LEV 1 30 0 VOLTage LE Vel lt NR1 gt VOLTage LEVel lt NR1 gt MAX VOLTage LEVel lt NR1 gt MIN lt NRf gt VOLT returns the present programmed volatge level VOLT MAX and VOLT MIN return the maximum and minimum programmable voltage levels SAV RST This command se
2. CV 10mVrms CV 50mVpp Transient Response 1 3mS for 50 to 100 load change within 1 of nominal voltage Remote Sense Voltage drop lt 5VDC output line Drift over 8 hours amp 30 minutes warm up period 0 01 10mV Operating Temperature ambient 0 C to 50 C Storage Temperature 40 C to 70 C Temperature Coefficient 30 minutes warm up period 100ppm C for CV 300ppm C for CC Humidity 0 C to 90 C RH non condensing Output Isolation 600VDC Front Panel Voltage 10 turn Knob Current 10 turn Knob ON OFF line circuit breaker Display LED Module 37 digits CV CC OVP LED status indicators AC Line Input 120VAC 10 240VAC 10 Line Frequency 50 60Hz Topology Switch mode Constant Voltage CV Constant Current CC Auto Crossover Outputs 1 Output Voltage 80VDC MAX Output Current 15ADC MAX Output Power 1 200 Watts MAX Programming Resolution 20mV 35mA Programming Accuracy Voltage 0 2 10 mV Current 0 3 10mA Readback Accuracy Voltage 0 2 20mV Current 0 3 20mA Line Regulation CV 0 01 Vm 2mvV CC 0 01 Im 2mA Load Regulation CV 0 02 Vm 5mV CC 0 03 Vm 5mV Efficiency 80 PARD Ripple amp Noise CV 10mVrms CV 75mVpp Transient Response 1 3mS for 50 to 100 load change within 1 of nominal voltage Remote Sense Voltage drop lt 5VDC output line Drift over 8 hours amp 30 minutes
3. Sense Input POWER SUPPLY 2 Input Sense Output Output FIGURE 3 3 PARALLEL OF Sense MULTIPLE SUPPLIES 3 8 CONFIGURING MULTIPLE SUPPLY FOR SPLIT SUPPLY OPERATION Split supply operation uses two power supplies to obtain two positive voltages with a common ground or to obtain a positive negative supply Two Positive Voltage To obtain two positive voltages connect the negative output terminals of both supplies together in a common connection The positive output terminals will provide the required voltages with respect to the common connection See Figure 3 4 POWER SUPPLY 1 Sense USE THE LARGEST GAUGE AND SHORTEST LENGTH POSSIBLE Output Output Sense POWER SUPPLY 2 Sense Output Output Sense FIGURE 3 4 SPLIT SUPPLY OPERATION OF MULTIPLE SUPPLIES Positive negative Supply AN CAUTION To prevent possible damage to the supply do not connect the remote program return line of the negative supply to the common connection To obtain a positive negative supply connect the negative output terminal of one supply to the positive output terminal of the second supply The positive output terminal of the first supply then provides a positive voltage relative to the common connection while the negative output terminal of the second supply provides a negative voltage You can set the current limits independently The maximum current available in split sup
4. Where appropriate related commands or queries are included These are listed because they are either directly related by function or because reading about them will clarify or enhance your understanding of the original command or query The manual is organized according to the following categories common commands subsystem commands Non SCPI commands and IEEE 488 1 commands Each category commands that follow are arranged in alphabetical order Section 1 command list includes all the commands COMMON COMMANDS LIST CLS Clears status ESE lt n gt Enables standard event status ESE Returns standard event status ESR Returns event status register IDN Returns instrument identification OPC Enables operation complete bit in ESR OPC Returns a 1 when operation completes RCL Recalls profile settings RST lt channel gt SAV lt channel gt n SAV lt channel gt SRE lt n gt SRE STB TRG TST Resets Saves instrument state and profile Returns saving status Sets service request enable register Returns service request enable register Returns status byte Trigger Performs self test and returns test result 4 6 SUBSYSTEM COMMANDS SYNTAX ABORt CAL ibrate CURRent DATA lt channel gt lt value gt LE Vel lt channel gt lt n gt SA Ve lt channel gt lt n gt OFFSet lt channel gt lt n gt lt value gt PASSword lt channel gt lt password gt SA Ve lt channel gt
5. 1 31 channel number lt bool gt 0 I OFF ON 1 OUTP REL 1 1 OUTP REL I OFF OUTPut RELay lt channel gt 0 1 OUTP STAT RST 4 28 OUTP REL POL This command is valid only if the power supply is configured for the optional relay connector Programming NORMal causes the relay output polarity to be the same as the power supply output Programming RE Verse causes the relay output polarity to be opposite to that of the power supply output If OUTP STAT ON when either relay command is sent the power supply output voltage is set to 0 during the time that the relays are changing polarity If the power supply is not configured for the relay connector sending either relay command has no affect but the corresponding relay bit STAT QUES changes accordingly Command Syntax OUTPut RELay POLarity lt channel gt lt CRD gt lt bool gt Parameters lt channel gt 1 31 channel number lt CRD gt lt bool gt NORMal 0 RE Verse 1 RST Value 0 NORMal Examples OUTP REL POL I NORM Query Syntax OUTPut RELay POLarity lt channel gt Returned Parameters O 1 Related Commands OUTP STAT RST PARALLEL SUBSYSTEM This subsystem controls the power supply operations in parallel mode PAR CLE This command can only be used in parallel operation mode It clears all channels assigned to the parallel group Command Syntax PARallel CLEar lt group gt Parameters lt group gt 1 5 group number Examples PAR CL
6. CAL STAT lt channel gt OFF disables the calibration mode SAV lt channel gt saves all calibration data to internal flash memory Wait about 2 minutes That is end of Calibration Procedure 5 3 RE INSTALLING CALIBRATION DATA In case the calibration data becomes corrupted by abnormal conditions the power supply has a built in capability for re installing the last calibration data without having to recalibrate the supply 1 First you need to read the power supply s slope and offset values when you receive your power supply or you can call American Reliance Inc to get this power supply s calibration information Need serial number Get calibration data procedure Get slope value Run command Run command Run command Run command Get offset value Run command Run command Run command Run command SYST SLOPE lt channel gt 1 get voltage output calibration slope SYST SLOPE lt channel gt 2 get current output calibration slope SYST SLOPE lt channel gt 3 get voltage read back calibration slope SYST SLOPE lt channel gt 4 get current read back calibration slope SYST OFFSET lt Channel gt 1 get voltage output calibration offset SYST OFFSET lt Channel gt 2 get current output calibration offset SYST OFFSET lt Channel gt 3 get voltage read back calibration offset SYST OFFSET lt Channel gt 4 get current read back calibration of
7. OPERATION MANUAL Date 01 22 07 Revision 1 This manual covers SPS 1 2kW amp 1 5kW Series Programmable DC Switching Power Supplies V Panel Version AMERICAN RELIANCE INC 3445 Fletcher Ave El Monte CA 91731 Ph 626 443 6818 E mail ariinfo amrel com Website www amrel com WARRANTY INFORMATION CERTIFICATION American Reliance certifies that this product met its published specifications at time of shipment from the factory THREE YEAR LIMITED WARRANTY American Reliance warrants to the original user or purchaser that your unit is free from any defects in material or workmanship for a period of three years from the date of purchase If any defect is discovered within the warranty period American Reliance will repair or replace the unit subject to verification of the defect or malfunction upon delivery or prepaid shipment to American Reliance IMPORTANT 1 Unless a problem is discovered upon initial inspection after purchase of the unit please do not return the product to the distributor where it was purchased American Reliance Inc accepts the responsibility of keeping the customer satisfied 2 If the customer s product requires troubleshooting warranty service or need a RMA number for return contact your merchant Or if you are unable to contact your merchant or the merchant is unable to provide service contact American Reliance Inc directly at Phone 626 443 6818 Toll Free 1 800 654 9838 Fax 6
8. Bit Position J 6 5 4 3 2 1 0 Bit Name BEEP NU CC CV OV OC OCP OUT ERR Bit Weight 128 64 32 16 8 4 2 1 Bit Position 15 14 13 12 11 10 9 8 Bit Name NU TRACK CC2 CV2 OV2 OC2 OCP2 OUT2 CHAN Bit Weight 32768 16384 8192 4096 2048 1024 512 256 ERR Error message 0 no error 1 error OUT output status 0 Output ON 1 Output OFF OCP OCP setting 0 OCP disabled 1 OCP enabled OC Over current protection circuit has tripped 0 Normal 1 OC tripped OV Over voltage protection circuit has tripped 0 Normal 1 Tripped CV CC or CV mode 0 CV mode 1 CC mode NU Not used BEEP Audible indicator setting 0 OFF 1 ON CHAN Active channel 0 channel 1 1 channel 2 OCP2 OCP setting in channel 2 0 OCP disabled 1 OCP enabled OC2 Over current protection circuit has tripped in channel 2 0 Normal 1 OC tripped OV2 Over voltage protection circuit has tripped in channel 2 0 Normal 1 Tripped CV2 CC or CV mode in channel 2 0 CV mode 1 CC mode TRACK Tracking mode setting for dual channel model 0 OFF 1 ON 4 45 COMMAND INDEX AND ERROR CODE FOR SYST ERR QUERY Command index for SYST ERR query RST 0 SERI 32 SYST CHAN 118 CLR 1 VRF 34 CAL CURR LEV 119 VOLT PROT CLE 2 LIST CURR 40 CAL VOLT
9. Examples Returned Parameters Related Commands MEAS DEL MEASure CURRent lt channel gt lt channel gt 1 31 channel number A MEAS CURR I lt NRf gt measured current value CURR This command sets the delay time to obtain read back value for MEAS VOLT and MEAS CURR queries Command Syntax Parameters Default Suffix Default value Examples Query Syntax Returned Parameters Related Commands MEAS VCOUT MEASure DELay lt NR1 gt lt NRI gt I 5000 delay time ms 0 ms MEAD DEL 800 MEASure DELay lt NR1 gt delay time MEAR VOLT MEAS CURR This query returns the voltage and current measured at the power supply sense terminals Query Syntax Parameters Default Suffix Examples Returned Parameters Related Commands MEAS VOLT MEASure VCOUT lt channel gt lt channel gt 1 31 channel number None MEAS VCOUT I lt NRf gt measured voltage and current value VOLT CURR This query returns the voltage measured at the power supply sense terminals Query Syntax Parameters Default Suffix Examples Returned Parameters Related Commands MEASure VOLTage lt channel gt lt channel gt 1 31 channel number V MEAS VOLT I lt NRf gt measured voltage value VOLT 4 27 OUTPUT SUBSYSTEM This subsystem controls the power supply voltage and current outputs and the optional output relay OUTP This command enables or disables the power supply output The stat
10. NOISE AND IMPEDANCE EFFECTS To minimize noise pickup or radiation use shielded pair wiring or shortest possible length for load wires Connect the shield to the chassis via a rear panel mounting screw Where shielding is impossible or impractical simply twisting the wires together will offer some noise immunity When using local sense connections use the largest practical wire size to minimize the effects of load line impedance on the regulation of the supply Note Use shorter low impedance and wider gauge load cables LOAD CONNECTIONS AN WARNING There is a potential shock hazard at the load when using a power supply with a rated output greater than 40V To protect personnel against accidental contact with hazardous voltages ensure that the load including connections have no live parts which are accessible Also ensure that the insulation rating of the load wiring and circuitry is greater than or equal to the maximum output voltage of the power supply CAUTION When making connections to the output terminal ensure that each terminal s mounting hardware and wiring assembly are placed to avoid touching the other terminal and shorting the power supply output Heavy connecting cables must have some form of strain relief to avoid loosening the connections REVERSE POLARITY To prevent from damages caused by reverse polarity a fast recovery diode and a fuse should be connected to the test system Both the fuse and the diode should
11. Please see Remote Operation section Common Command for this command SYST IDLE This command is use to set the power supply to slave unit or to master unit 3 5 POWER ON INITIALIZATION Once the SPS Master and power slave units have been configured and AC power is applied to the Master unit the controller will enter into an initialization period During this period the controller will communicate with each power supply unit and upload model number calibration data and other data from each unit and save it into its NV RAM for future operation of channels I to 31 Depending on the number of power channels connected to the RS485 bus the initialization may take up to 2 minutes In order to achieve correct communication please allow 2 minutes of initialization time at power on before sending any GPIB commands to the power supplies User can use the GPIB command query TST Command to verify power units availability Please refer to GPIB command set for more detailed information POWER CYCLING CAUTION In order to ensure the system has successfully powered on after initialization the interval between power on off should be more than 30 seconds Too short an interval may cause initialization failure USING MULTIPLE SUPPLIES There is a shock hazard at the load when using a power supply with a rated or combined output greater than 40V To protect personnel against accidental contact with hazardous voltages created by series connecti
12. SAV lt channel gt n NOTE If saved without the profile number SAV lt channel gt it may require 2 3 minutes processing time or at least wait until query returns to 0 5 4
13. Some procedures described in this manual are performed with power supplied to the instrument while its protective covers are removed If contacted the energy available at many points may result in personal injury ENVIRONMENTAL CONDITIONS This instrument is intended for indoor use in an installation category II pollution degree 2 environment It is designed to operate at maximum relative humility of 95 and at altitudes of up to 2000 meters Refer to the specifications for the ac mains voltage requirements and ambient operating temperature range BEFORE APPLYING POWER Verify that the product is set to match the available line voltage the correct line fuse is installed and all safety precautions are taken GROUND THE INSTRUMENT Before switching on the instrument the protective earth terminal of the instrument must be connected to the protective conductor of the main power cord The mains plug shall be inserted only in an outlet socket that is provided with a protective earth contact This protective action must not be negated by the use of an extension cored that is without a protective conductor Any interruption of the protective grounding or disconnection of the protective earth terminal will cause a potential shock hazard that could result in personal injury FUSES Only fuses with the required rated current voltage and specified type should be used Do not use repaired fuses or short circuited fuseholders To do so could cause a shock
14. Transient Response 1 3mS for 50 to 100 load change within 1 of nominal voltage Remote Sense Voltage drop lt 5VDC output line Drift over 8 hours amp 30 minutes warm up period 0 01 10mV Operating Temperature ambient 0 C to 50 C Storage Temperature 40 C to 70 C Temperature Coefficient 30 minutes warm up period 100ppm C for CV 300ppm C for CC Humidity 0 C to 90 C RH non condensing Output Isolation 600VDC Front Panel Voltage 10 turn Knob Current 10 turn Knob ON OFF line circuit breaker Display LED Module 3 digits CV CC OVP LED status indicators 1 15 OUTPUT TERMINALS AND WIRES All models have terminal connectors on the rear panel with basic connections a positive terminal a negative terminal a positive remote sense terminal a negative remote sense terminal and an earth ground terminal lt NOTE gt The power supply is set at the factory for local sense operation i e the S and S terminals are connected to the and terminals by a jumper wire at the rear connector When operating in remote sense mode remove the jumpers and refer to the section on remote sense A brief definition of remote sense is a measurement of voltage at the load rather than at the output terminals Local connections are made to the and terminals of the power supply Wrap and bundle wires to reduce coupling effect In order to safely and sufficiently handle elec
15. and the capacitance of the load to form a filter which will become part of the supply s CV feedback loop The extra phase shift created by this filter can degrade the supply s stability and result in poor transient response performance In extreme cases it can cause oscillation It is difficult to state simple rules defining the conditions under which this can occur and which corrective action to take A certain amount of trial and error may be called for Three guidelines which are almost always valid are a Keep the leads as short as possible Twist the load leads together to minimize inductance c Use a shield grounded at the power supply and only In most circumstances once these three guidelines are followed problems associated with the load lead inductance are eliminated This leaves the load lead resistance and load capacitance as the major cause of the reduced stability In this case you may obtain further stability by a Keeping the load capacitance as small as possible b Increasing the diameter of the load lead to reduce resistance If heavier gauge load leads 10 or greater are used circumstances may arise when the load lead inductance and the load capacitance can form an under damped filter This filter occasionally has the effect of destabilizing phase response In this case the above steps can worsen stability since they will reduce damping in the system LOAD CONSIDERATION AND MULTIPLE LOADS CONNECTION When t
16. commands and remains in effect until the trigger subsystem receives a trigger or an ABORt command is given Command Syntax Parameters Default Suffix RST Value Examples Query Syntax Returned Parameters Related Commands VOLTage LEVel TRIGgered lt channel gt lt NRf gt lt channel gt 1 31 channel number lt NRf gt minimum to maximum voltage level V 5 0 VOLT TRIG 1 25 VOLT LEV TRIG 1 22 0 VOLTage LEVel TRIGgered lt channel gt lt NRf gt the presently programmed voltage level If the TRIG level is not programmed the VOLT level is returned ABOR VOLT RST 4 40 NON SCPI COMMANDS AND THEIR EQUIVALENT SCPI COMMANDS In order to comply with AMREL old SPS and SPS new firmware version some Non SCPI commands are still supported in this version However most of the Non SCPI commands have an equivalent SCPI commands and some of them don t Table 4 1 shows the corresponding SCPI command for each Non SCPI command Others without mapping SCPI commands are also displayed in the following section Non SCPI Command and Equivalent SCPI Command Table Non SCPI Command Equivalent SCPI Command CURR CAL SAV CAL CURR SAVE MOD CHAN MOD PROT CHAN SYST PROT PARA CLE PAR CLE PARA CURR PAR CURR PARA GROU PAR GRO PARA OUTP PAR OUTP PARA OUTP REL PAR OUTP REL PARA OUTP REL POL PAR OUTP REL POL PARA OUTP TRIG PAR OUTP TRIG PARA STAT PAR STAT PARA VOLT PA
17. lt bool gt OUT2 lt bool gt OVP lt channel gt lt bool gt OVP1 lt bool gt OVP2 lt bool gt Sets Queries the output voltage level Sets Queries the voltage triggered level Resets latched voltage protection Sets Queries over voltage protection counts Sets Queries over voltage protection level Sets Queries over voltage protection state Sets Queries under voltage protection state Resaves current calibration data Returns model number Clears channels assigned to parallel group Sets Queries average current value for each channel inside a parallel group Sets Queries assigned channels for a group Sets relay state for each channel Sets relay polarity for each channel Sets output state for each channel Sets Queries parallel current sharing state Sets Queries voltage value for a group Returns protected channel number Sets Queries serial number Sets Queries output shut down time Sets Queries current active channel Sets Queries calibration offset value Sets Queries calibration slope value Queries power supply status Resaves voltage calibration data Returns output current Returns output current for channel I Returns output current for channel 2 Sets current limit Sets current limit for channel I Sets current limit for channel 2 Returns setting current value Returns setting current value for channel I Returns setting current value for channel 2 Sets over current protection state Se
18. 66 205 need a user name and password from AMREL authorization 2 Run setup exe file and follow the on screen instructions 3 Choose Start Programs or All Programs for Windows XP Config Tool to run the program 2 Configure Instrument 1 When the program first runs the software automatically search the connected instruments and the following three panel show up Device List 000000000000 192 168 1 30 MREL PD MC1 0 CF 92 1CT F 2 52b gt DHCP server exist The Instrument network have a DHCP server ConfigTool recommend you use DHCP to do the IP address assigment Do you want to configure all equipments to accept DHCP Clear Scaned Equipments __No Enviroment amp Message 5 ConfigTool is analysing your instrument network Please make sure that this PC did connect to equipments with Ethernet Found a equipment of AMREL at 192 168 1 30 eri PC Interface 1000003 92 168 1 16 DHCP setup Enabled Pinging 192 168 1 208 192 168 1 208 with 32 bytes of data ly from 192 168 1 208 bytes 32 time Oms TTL 128 0 10 20 30 40 50 60 70 80 90 100 The instrument network will link with other network s No dt Yes There is are DHCP server in the instrument network No sd Yes The equipments would remenber current networking setup No gt Yes Run Again 2 If Users local network supports DHCP server users can just click Yes to c
19. CC CV 0 means SPS unit is in CC mode I means SPS unit is in CV mode IEEE 488 1 COMMANDS AND THEIR EQUIVALENT SCPI COMMANDS In order to comply with AMREL old SPS and SPS IEEE 488 1 firmware option some IEEE 488 1 commands are still supported in this version However each IEEE 488 1 command has an equivalent SCPI command The following table shows the corresponding SCPI command for each IEEE 488 1 command IEEE 488 1 Command and Equivalent SCPI Command Table Command Equivalent SCPI command IOUT lt channel gt MEAS CURR lt channel gt IOUT1 MEAS CURR 1 IOUT2 MEAS CURR 2 ISET lt channel gt lt value gt CURR lt channel gt lt value gt ISET1 lt value gt CURR I lt value gt ISET2 lt value gt CURR 2 lt value gt ISET lt channel gt CURR lt channel gt ISET1 CURR I ISET2 CURR 2 OCP lt channel gt lt bool gt CURR PROT STAT lt channel gt lt bool gt OCP1 lt bool gt CURR PROT STAT 1 lt bool gt OCP2 lt bool gt CURR PROT STAT 2 lt bool gt OUT lt channel gt lt bool gt OUTP lt channel gt lt bool gt OUT 1 lt bool gt OUTP 1 lt bool gt OUT2 lt bool gt OUTP 2 lt bool gt OVP lt channel gt lt bool gt VOLT PROT STAT lt channel gt lt bool gt OVP1 lt bool gt VOLT PROT STAT 1 lt bool gt OVP2 lt bool gt VOLT PROT STAT lt bool gt OVSET lt channel gt lt value gt VOLT PR
20. LEV 120 CURR PROT CLE 3 LIST CURR TIME 41 SYST SLOPE 121 OUTP PROT CLE 4 LIST VOLT 42 SYST OFFSET 122 CAL STAT 5 LIS VOLT TIME 43 CHAN VERS 123 VOLT PROT STAT 6 CAL SAVE 50 PROT CHAN 125 CURR PROT STAT 7 CURR CAL SAVE 58 TRAC 126 OUTP 8 VOLT CAL SAVE 59 TRAC CLE 127 OUTP REL 9 UND PROT CLE 70 PARA CLE 171 OUTP REL POL 10 MEAS VOLT VOUT 97 PARA CURR 172 LIST VOLT STEP 11 MEAS CURR IOUT 98 PARA GROU 173 LIST CURR STEP 12 ABOR 101 PARA OUTP TRIG 174 LIST VOLT STAT 13 OPC 102 PARA OUTP REL 175 LIST CURR STAT 14 CAL VOLT 103 PARA STAT 176 SAV 16 IDN 105 PARA VOLT 177 UND PROT STAT 17 TST 109 PARA OUTP REL POL 178 SHUT DOWN 19 ESR 110 ESE 180 VOLT VSET 20 TRG TRIG 111 SYST CHAN MAX 181 VOLT TRIG 21 SYST ERR 112 IMEAS DEL 182 CURR UISET 22 SYST VERS 113 SYST EOS 183 CURR TRIG 23 STAT OPER 114 SRE 184 VOLT PROTCLEV 24 STAT QUES 115 STB 185 TRIG DEL 25 CAL CURR 116 STAT QUES ENAB 186 LIST COUN 31 MODEL 117 SYST DEF OUTP 187 Error code for SYST ERR query 01 RS485 busy the master controller is communicating with power supply 02 RS485 error power supply receives command error 03 RS485 error SPLR MC1 controller time out error Controller sends data to power supply but no response 04 RS485 error output voltage and current measurement errors 20 GPIB error GPIB command parameter error 30 GPIB error power supply command is not selected or missed 50 GPIB error GPIB com
21. SLOPe lt channel gt lt n gt lt value gt STATe lt channel gt lt bool gt lt password gt VOLTage DATA lt channel gt lt value gt LE Vel lt channel gt lt n gt SA Ve lt channel gt lt n gt CHANnel MODel lt channel gt SHUTdown lt channel gt lt n gt SERial lt channel gt lt serial number gt VERSion lt channel gt CURRent LEVel IMMediate lt channel gt lt value gt TRIGgered lt channel gt lt value gt PROTection CLEar lt channel gt STATe lt channel gt lt bool gt LIST COUNt lt channel gt lt count gt CURRent lt channel gt lt point gt lt value gt STATe lt channel gt lt bool gt STEP lt channel gt lt n gt TIMe lt channel gt lt point gt lt value gt VOL Tage lt channel gt lt point gt lt value gt STATe lt channel gt lt bool gt STEP lt channel gt lt n gt TIMe lt channel gt lt point gt lt value gt MEASure CURRent lt channel gt DELay lt n gt VCOUT lt channel gt VOLTage lt channel gt Resets the trigger system to idle state Enters the current calibration value Sets the current calibration point Resaves current calibration data Sets Queries calibration offset value Sets calibration password Saves new calibration constants Sets Queries calibration slope value Sets Queries calibration state Enters the voltage calibration value Sets the voltage calibration point Resaves voltage calibration data
22. SUPPLIES CONFIGURING MULTIPLE SUPPLIES FOR PARALLEL OPERATION Use parallel operation to obtain a higher current through a single output using two or more supplies Set all the OVP set point to maximum Set all of the outputs to the same voltage before connecting the positive output terminals and negative output terminals in parallel See Figure 3 3 The total current available is the sum of the maximum currents of each supply When operating multiple supplies in parallel the operating mode of each supply depends on the load current being drawn Example with two 120V 10A model power supplies operating in parallel with a 15A load one supply operates in constant current mode supplying 10A and the other supply operates in voltage mode supplying the remaining 5A The level of current sharing between units depends on how accurately the output voltages are matched lt NOTE gt If you do no fix the OVP set points at maximum the OVP circuit may trip on one unit reducing the current available to the load SENSING FOR PARALLEL OPERATION Use default local sensing to enhance power sharing between units as the impedance of the load lines will tend to correct for current imbalance If you use remote sensing at the lad for better voltage regulation one supply always operates in current limit mode and supplies most of the power POWER SUPPLY 1 Sense USE THE LARGEST GAUGE AND SHORTEST LENGTH POSSIBLE Output Output LOAD
23. Under Voltage Protection protection was triggered TRAC Tracking operation enabled 1 NU Not used STAT QUES ENAB This command sets or reads the value of the Questionable Enable register This register is a mask for enabling specific bits from the Questionable Event register to set the questionable summary bit of the Status Byte register This bit bit 3 is the logical OR of all the Questionable Event Register bits that are enabled by the Questionable Status Enable Register Command Syntax STATus QUEStionable ENABle lt NRf gt Parameters 0 to 32727 Suffix None Default Value 0 Example STAT QUES ENAB 18 Query Syntax STATus QUEStionable ENABle Returned Parameters lt NR1 gt Register Decimal Value Related Commands STAT QUES SYSTEM SUBSYSTEM The commands queries in this subsystem include some millenniums system information such as setting or querying the maximum number of channels for a controller EOS mode error code and system version SYST BUZZ This command sets and queries the power supply buzzer mode Command Syntax SYSTem BUZZer lt bool gt Parameter lt bool gt 0 OFF Buzzer sound OFF 1 ON Buzzer sound ON Default Value 1 Example SYST BUZZER 0 Query Syntax SYSTem BUZZer Returned Parameter lt NRI gt represents Buzzer mode Related Commands None 4 33 SYST CHAN MAX This command sets and queries the maximum number of the slave channels permitted to connect to the master controller Co
24. be rated for two times the maximum rated voltage and current of the unit Please connect the components according to the following diagram POWER SUPPLY BATTERY LOAD Sense H Output Fast Recovery Diode Output Sense REVERSE POLARITY PROTECION 2 7 INDUCTIVE LOADS To prevent damage to the power supply from inductive kickback or back EMF from a motor connect a surge absorber diode across the output parallel The diode should be rated at greater than two times the supply s output voltage and have a current surge rating two times greater than the supply s output rating Connect the cathode to the positive output and the anode to the negative output return POWER SUPPLY INDUCTIVE LOAD Sense Output Output Sense INDUCTIVE LOAD WITH SURGE ABSORBER PROTECTION CONNECTING SINGLE LOADS The single loads connection Local sense lines shown below are the factory default connections for the rear DC output terminal or using the internal isolation relay terminal You do not need remote sensing for basic operation of your supply However if you wish to correct any small drops in your load lines the remote sensing feature USE THE LARGEST GAUGE POWER SUPPLY AND SHORTEST LENGTH POSSIBLE Sense LOAD Output Input Output Sense SINGLE LOAD WITH LOCAL SENSING DEFAULT REMOTE SENSE CONFIGURATION CAUTION Turn off the power supply before maki
25. bit to be set If it is caused by Questionable Data QD bit of the Status Byte register users must read the Protection Event Status register to determine the actual channel number where the SRQ is generated e The interrupt will recur until the specific condition that caused the event is removed 4 44 Protection Event Status register Protection Event Status register stores the channel number where a service request is occurred if it is caused by the Questionable Data QD bit of the Status Byte register Use SYST PROT query to read it but not clear it It is cleared only after the specific condition that caused the event is removed NON SCPI COMMAND STATUS REPORTING A status register is used for Non SCPI command status reporting These register also monitoring the real time status condition of the power supply Each output channel has an 8 bit register which signifies a true condition as 1 and a false condition as 0 These bit conditions stay true as long as the condition is true The status word received is in decimal format and needs to be converted to binary format Each bit is assigned a particular condition Use STATUS query to read the register lt Note gt This status reporting model only applies to maximum two slave units connected to a master controller and the channel numbers are set to or 2 Byte 1 is for channel 1 and Byte 2 is for channel 2 Bit configuration of Status register table
26. calibration for details Command Syntax Parameters Examples Query Syntax Returned Parameters Related Commands VOLT PROT STAT VOLTage PROTection COUNt lt channel gt lt value gt lt channel gt 1 31 channel number lt value gt count value depending on models VOLT PROT COUN I 270 VOLTage PROTection COUNt lt channel gt VOLTage PROTection COUNt lt channel gt MAX 0 to maximum count value VOLT PROT STAT This command enables or disables the power supply over voltage OV protection function If the over voltage protection function is enabled and the output voltage exceeds the OVP level then the output is disabled and the Questionable Condition status register STAT QUES OV bit is set An over voltage status can be cleared with the OUTP PROT CLE VOLT PROT CLE or RST command Command Syntax Parameters RST Value Examples Query Syntax Returned Parameters Related Commands VOLT TRIG VOLTage PROTection STATe lt channel gt lt bool gt lt channel gt 1 31 channel number lt bool gt 0 1 OFF ON OFF VOLT PROT STAT 10 VOLT PROT STAT I ON VOLTage PROTection STATe lt channel gt 0 1 OUTP PROT CLE VOLT PROT CLE RST This command programs the pending triggered voltage level of the power supply The pending triggered voltage level is a stored value that is transferred to the output terminals when a trigger occurs A pending triggered level is unaffected by subsequent VOLT LEV IMM
27. group gt lt bool gt lt group gt 1 5 group number lt bool gt ON I set relay in OPEN status OFF 0 set relay in CLOSE status None PAR OUTP REL I I PAR OUTP REL lt group gt O 1 PAR GRO This command can only be used in parallel operation and all power supplies inside the parallel group are configured with optional relay connectors It sets the relay polarity status for each individual channel inside a parallel group Command Syntax Parameters Default Suffix Examples Query Syntax Returned Parameters Related Commands PARallel OUTPut RELay POLarity lt group gt lt bool gt lt group gt 1 5 group number lt bool gt NORM 0 set relay polarity in normal REV I set relay polarity in reverse None PAR OUTP REL POL 1 REV PARallel OUTPut RELay POLarity lt group gt 0 1 PAR GRO PAR OUTP REL 4 30 PAR OUTP TRIG This command can only be used in parallel operation It enables output for each individual channel inside a parallel group to turn on or off output state based on TRIG command The TRIG command enables all channels outputs ON or OFF Command Syntax PARallal OUTPut TRIGger lt group gt lt bool gt Parameters lt group gt 1 5 group number lt bool gt ON 1 Enable output OFF 0 Disable output Default Suffix None Examples PAR OUTP TRIG 1 ON Query Syntax None Related Commands PAR GRO PAR VOLT PAR CURR PAR STAT This command ca
28. lt serial number gt power supply serial number lt DHCP flag gt if net setting is from DHCP or not lt ip address gt power supply unit IP address lt idn string gt same as IDN query string CHAN SER SYST NET DHCP SYST NET IP IDN This command sets and queries the Ethernet subnet value Command Syntax Parameters Example Query syntax Returned Parameters Related Commands SYST PROT SYSTem NET SUBNet lt CRD gt lt CRD gt Subnet value in decimal dot notation SYST NET SUBNET 255 255 255 0 SYSTem NET SUBNet lt CRD gt Represents subnet value SYST NET ADDR SYST NET GATE This query can only be used after SRQ is properly set It reads the Protect Event Status register which contains channel number where protection has occurred A 1 in any Protect Event Status register bit position indicates that the protected channel number is the bit position plus 1 Query Syntax Parameters Returned Parameters Examples Related Commands SYST PROT PROT CHAN None Hexadecimal string with amp H representing protect register value amp H00000020 indicates protection occurred at channel 6 None 4 37 Bit configuration of Protect Register is shown in the following table Bit Position 7 6 5 4 3 2 1 0 Channel 8 7 6 5 4 3 2 1 Bit Weight hex 80 40 20 10 8 4 2 1 Bit Position 15 14 13 12 11 10 9 8 Channel 16 15 14 13 12 11 10 9 Bit Weight he
29. repack the power supply in its original box If the original box is not available seal the instrument in a plastic bag and pack it in a 200 Ib 90Kg test corrugated cardboard carton large enough allow 3 inches 76 2mm of cushioning material to surround the unit Use a material such as foam slabs or chips or an appropriate wooden crate used Label the package as shown in Figure 2 1 Mark the address of the service center and your return address carton If storing no more than two cartons high The storage temperature should be between 40 C to 70 C PROGRAMMABLE DC POWER SUPPLY Model Serial FRAGILE ELECTRONIC EQUIPMENT PLEASE HANDLE WITH CARE FIGURE 2 1 SHIPPING OR STORAGE CARTON LABEL 2 3 LOCATION MOUNTING AND VENTILATION The power supply was designed for rack mounted or bench top applications RACK MOUNTING INTALLATION l Use the integral rack mount ears at both sides of the front panel to install the power supply in a rack mount application 2 Provide adequate support for the rear of the instrument without obstructing the ventilation inlets on the sides of the unit Use a support bar at the bottom or rear of the unit this item is not provided by AMREL The support bar can be purchased from the enclosure manufacture please follow the rack mount manufacturer s instructions for proper installation Mounted from the left front panel NOTE Must install two angle supports under the unit NO
30. this American Reliance product Some states do not allow limitations on how long implied warranties last and do not allow exclusion of incidental or consequential damages so the above limitations and exclusions may not apply to the customer This warranty gives the customer specific legal rights which may vary from state to state NON WARRANTY SERVICE Any American Reliance out of warranty instrument that is thought to be defective but is repairable may be sent in for non warranty service Please contact our service department at 800 654 9838 for current repair charges Instrument to American Reliance should follow the instruction under the heading Shipping Instructions in this section EXCLUSIVE REMEDIES Remedies provided herein are the customers sole and exclusive remedies American Reliance Inc shall not be liable for any direct indirect special incidental or consequential damages whether based on contract tort or any legal theory RMA RETURNS Products returned for warranty and non warranty service to American Reliance must be shipped freight prepaid COD will not be accepted American Reliance Inc 3445 Fletcher Ave EI Monte CA 91731 Attn RMA e Please call our service department at 1 800 654 9838 to obtain a return authorization RMA from AMREL before returning any product The instrument must be carefully packed preferably in its original carton and should be accompanied by a letter or note containing the
31. 1 0 0 0 0 16 0 0 0 0 1 2 0 1 0 0 0 17 1 0 0 0 1 3 1 1 0 0 0 18 0 1 0 0 1 4 0 0 1 0 0 19 1 1 0 0 1 5 1 0 1 0 0 20 0 0 1 0 1 6 0 1 1 0 0 21 1 0 1 0 1 7 1 1 1 0 0 22 0 1 1 0 1 8 0 0 0 1 0 23 1 1 1 0 1 9 1 0 0 1 0 24 0 0 0 1 1 10 0 1 0 1 0 25 1 0 0 1 1 11 1 1 0 1 0 26 0 1 0 1 1 12 0 0 1 1 0 Del 1 1 0 1 1 13 1 0 1 1 0 28 0 0 1 1 1 14 0 1 1 1 0 29 1 0 1 1 1 15 1 1 1 1 0 30 0 1 1 1 1 31 1 1 1 1 1 OFF 0 Least Significant Bit LSB ON 1 FIGURE 1 6 CHANNEL ADDRESS SWITCH 12345 1 6 REMOTE SENSE When the supply is locally strapped for local sensing normal operation an unavoidable voltage drop is incurred in the load and adds to its voltage regulation By connecting the supply for voltage remote sensing as shown in Figure 1 9 voltage is sensed at the load rather than at the output terminals This allows the supply to automatically compensate for voltage drop in the load leads as well as to accurately read back the voltage directly across the load Line drop is subtracted from the total output voltage available at the output When the supply is connected for remote sensing the OVP circuit senses at the main output terminal and not at the sense points The voltage sensed by the OVP circuit could be significantly higher than the voltage being regulated at the load Therefore set OVP threshold voltage accordingly SPS also features a PTC device across the output and the remote sense for overload prot
32. 2 9 CONNECTING MULTIPLE LOADS Proper connection of distributed loads is an important aspect of power supply use Two common methods of connection are the parallel power distribution method and the radical power distribution method PARALLEL POWER DISTRIBUTION This distribution method involves connecting leads from the power supply to one load from that load to the next load and so on for each load in the system This method results in the voltage at each load depending on the current drawn by the other loads and allows DC ground loops to develop Except for low current application we do not recommend using this method RADIAL POWER DISTRIBUTION METHOD To connect distributed loads we recommend that you use radial power distribution With this method you connect power to each load individually from a single pair of terminals designated as the positive and negative distribution terminals These terminals may be the power supply output terminals the terminals of one of the loads or a distinct set of terminals especially established for distribution use Connect the sense leads to these to these terminals to compensate for losses and minimize the effect of one load upon another The recommended load and sensing connections for multiple loads BATTERY CHARGING The power supply s OVP circuit contains a MOSFET that effectively shorts the output of the supply whenever OVP trips If a battery or other external voltage source is connected acros
33. 26 443 8600 Email ariinfo amrel com This warranty does not apply to defects or to physical damage resulting from abuse neglect accident improper repair alteration or unreasonable use of the unit resulting in but not limited to cracked or broken cases or parts or to units damaged by excessive heat Except upon initial purchase this warranty does not cover finish or appearance items nor does it cover items damaged in shipment to American Reliance for repair or calibration American Reliance assumes no responsibility for shipping and handling However repaired units will be shipped back to the customer with return shipping charges paid by American Reliance To receive service under this warranty you must include proof of purchase including date and place of purchase a copy of your purchase receipt or American Reliance will not be responsible for repairs or replacement of the unit under warranty Any applicable implied warranties including warranties of merchantable and fitness for a particular use are hereby limited to three years from the date of purchase Consequential or incidental damages resulting from loss of use or from a breach of any applicable express or implied warranties are hereby excluded This warranty is in lieu of all other agreements and warranties general or specific express or implied No representative or person is authorized to assume for American Reliance any other liability in connection with the sale or use of
34. 60Hz Topology Switch mode Constant Voltage CV Constant Current CC Auto Crossover Outputs 1 Output Voltage 20VDC MAX Output Current 60ADC MAX Output Power 1 200 Watts MAX Programming Resolution 5mV 17mA Programming Accuracy Voltage 0 2 10 mV Current 0 3 10mA Readback Accuracy Voltage 0 2 20mV Current 0 3 20mA Line Regulation CV 0 01 Vm 2mvV CC 0 01 Im 2mA Load Regulation CV 0 02 Vm 5mV CC 0 03 Vm 5mV Efficiency 80 PARD Ripple amp Noise CV 10mVrms CV 75mVpp Transient Response 1 3mS for 50 to 100 load change within 1 of nominal voltage Remote Sense Voltage drop lt 5VDC output line Drift over 8 hours amp 30 minutes warm up period 0 01 10mV Operating Temperature ambient 0 C to 50 C Storage Temperature 40 C to 70 C Temperature Coefficient 30 minutes warm up period 100ppm C for CV 300ppm C for CC Humidity 0 C to 90 C RH non condensing Output Isolation 600VDC Front Panel Voltage 10 turn Knob Current 10 turn Knob ON OFF line circuit breaker Display LED Module 3 digits CV CC OVP LED status indicators SPS 35 35 AC Line Input 120VAC 10 240VAC 10 Line Frequency 50 60Hz Topology Switch mode Constant Voltage CV Constant Current CC Auto Crossover Outputs 1 Output Voltage 35VDC MAX Output Current 35ADC MAX Output Power 1 200 Watts MA
35. 8 Suffix None Example ESE 32 Query Syntax ESE Returned Parameters lt NR1 gt Register decimal value Related Commands ESR STB OPC lt Note gt The OPC bit at the register cannot be set through ESE command It must use OPC command But the OPC bit can only be cleared by executing ESE command ESR Meaning and Type Event Status Register Device Status Description This query reads the Standard Event Status Event register Reads the register and clears it The bit configuration of this register is the same as the Standard Event Status Enable register ESE Query Syntax ESR Parameters None Returned Parameters lt NRI gt Register decimal value Related Commands CLS ESE ESE OPC 4 11 IDN Identification Query Meaning and Type Identification System Interface Description This query requests the power supply to identify itself It returns a string composed of five fields separated by commas Query Syntax IDN Returned Parameters lt CRD gt Field Information AMREL Manufacturer XXXXX XX Model number 0 CF 92 CT FV x xx Revision levels of firmware Example AMREL SPS MC1 0 CF 92 1CT FV2 47 Related Commands None OPC Meaning and Type Operation Complete Device Status Description This command causes the interface to set the OPC bit bit 0 of the Standard Event Status register when the power supply has completed all pending operations see ESE for the bit configuration of the Standard Even
36. AN WARNING Disconnect AC power from the instrument before removing the cover Even with the front panel power switch is the OFF position live line voltages are exposed when the cover is removed and Repairs must be made by experienced service technicians only NOTE You must obtain an authorization from AMREL first before removing the cover of the instrument Otherwise the warranty will be a void AN WARNING There is a potential shock hazard if the power supply chassis and cover are not connected to an electrical ground via the safety ground in the AC input connector Ensure that the power supply is connected to a grounded AC outlet with the recommended AC input connector configured for the available line voltage CAUTION When power switch is turned ON output voltage or current previously set will be applied to loads AC INPUT CONNECTOR TABLE 2 2 AC INPUT CONDITIONS AC VOLTAGE MAX CURRENT MAX POWER FREQUENCY 120VAC 10 20A Max 2400 VA 50 60Hz 240VAC 10 13A Max 3120 VA 50 60Hz 2 5 AC INPUT CORD AN WARNING The AC input cord is the disconnect device for the power supply The plug must be readily identifiable to the operator The input cord must be no longer than 3 m 9 84 feet The AC input cord we recommend is specified in Table 2 3 AC Cord Specification If you require a special cord call our sales representative TABLE 2 3 AC CORD SPECIFICATION WIRE SIZE TYPE OF CONDUCTOR RATINGS LENGTH fe
37. CRD2 gt lt CRD gt lt CRD1 gt serial number lt CRD2 gt IP address in decimal dot notation SYST NET ADDR 192 168 1 3 SYSTem NET ADDRess lt Serial Number gt lt CRD gt Represents IP address SYST NET GATE SYST NET SUBNET This query reads if the power supply Ethernet configuration is from DHCP server Query syntax Returned Parameters Related Commands SYST NET EOS SYST NET DHCP lt NRI gt 0 Ethernet configuration is from set up 1 Ethernet configuration is from DHCP server SYST NET ADDR This command sets and queries the Ethernet interface EOS mode Command Syntax Parameters Example Query syntax Returned Parameters Related Commands SYSTem NET EOS lt NR1 gt lt NRI gt 0 None 1 CR 2 LF 3 CR LF SYST NET EOS 1 SYSTem NET EOS lt NRI gt Represents EOS mode SYST EOS 4 36 SYST NET GAT This command sets and queries the Ethernet default gateway IP address Command Syntax Parameters Example Query syntax Returned Parameters Related Commands SYST NET STAT SYSTem NET GAT lt CRD gt lt CRD gt Gateway IP address in decimal dot notation SYST NET GAT 192 168 1 0 SYSTem NET GAT lt CRD gt Represents gateway IP address SYST NET ADDR SYST NET SUBN This query reads Ethernet configuration state Query syntax Returned Parameters Related Commands SYST NET SUBN SYST NET STATe lt CRD gt Represents the net configuration state containing the following fields
38. CV 0 01 Vm 2mvV CC 0 01 Im 2mA Load Regulation CV 0 02 Vm 5mV CC 0 03 Vm 5mV Efficiency 80 PARD Ripple amp Noise CV 30mVrms CV 200mVpp Transient Response 1 3mS for 50 to 100 load change within 1 of nominal voltage Remote Sense Voltage drop lt 5VDC output line Drift over 8 hours amp 30 minutes warm up period 0 01 10mV 1 14 Operating Temperature ambient 0 C to 50 C Storage Temperature 40 C to 70 C Temperature Coefficient 30 minutes warm up period 100ppm C for CV 300ppm C for CC Humidity 0 C to 90 C RH non condensing Output Isolation 600VDC Front Panel Voltage 10 turn Knob Current 10 turn Knob ON OFF line circuit breaker Display LED Module 37 digits CV CC OVP LED status indicators SPS 600 2 AC Line Input 120VAC 10 240VAC 10 Line Frequency 50 60Hz Topology Switch mode Constant Voltage CV Constant Current CC Auto Crossover Outputs 1 Output Voltage 600VDC MAX Output Current 2ADC MAX Output Power 1 200 Watts MAX Programming Resolution 200mv 0 5mA Programming Accuracy Voltage 0 2 10 mV Current 0 3 10mA Readback Accuracy Voltage 0 2 20mV Current 0 3 20mA Line Regulation CV 0 01 Vm 2mV CC 0 01 Im 2mA Load Regulation CV 0 02 Vm 5mV CC 0 03 Vm 5mV Efficiency 80 PARD Ripple amp Noise CV 40mVrms CV 250mVpp
39. E 1 Query Syntax None Related Commands PAR GRO PAR CURR This command can only be used in parallel operation mode It sets average current limit value for each channel of a specified group Command Syntax Parameters Default Suffix Examples Query Syntax Returned Parameters Related Commands PARallel CURRent lt group gt lt NRf gt lt group gt 1 5 group number lt NRf gt average current value A PAR CURR 1 2 0 PAR CURRent lt group gt lt NRf gt average current value PAR GRO 4 29 PAR GRO This command can only be used in parallel operation It assigns an individual channel to a specified parallel group One group can contain maximum of 8 channels Command Syntax Parameters Default Suffix Examples Query Syntax Returned Parameters Related Commands PAR OUTP REL PARallel GROup lt group gt lt channel gt lt group gt 1 5 group number lt channel gt 1 31 channel None PAR GRO I I PARallel GROup lt group gt lt CRD gt all channel numbers separated by a comma PAR CURR PAR VOLT PAR CLE This command can only be used in parallel operation and all power supplies inside the parallel group are configured with the optional relay connectors It sets the relay status for each individual channel inside a parallel group Command Syntax Parameters Default Suffix Examples Query Syntax Returned Parameters Related Commands PAR OUTP REL POL PARallel OUTPut RELay lt
40. F 1 Power ON output status same as the Power OFF status SYST DEF OUTP I SYST DEF OUTP 0 SYSTem DEFault OUTPut lt NR1 gt Represented the default power on output status None 4 34 SYST EOS This command sets and queries the end of string EOS mode for read back of current interface Command Syntax SYSTem EOS lt NR1 gt Parameter lt NR1 gt 0 3 end of string EOS mode 0 NONE I CR 2 LF 3 CR LF For RS 232 interface only Default Value 3 Example SYST EOS I Query Syntax SYSTem EOS Returned Parameter lt NR1 gt represented EOS mode Related Commands NONE lt Note gt If the end of string mode is set to 0 using this command the returned value is in binary format if users communicate the power supply using National Instrument s Measurement and Automation software SYST ERR This query returns the next error message response string from the remote programming error queue The queue is a FIFO first in first out buffer that stores maximum 9 errors as they occur As it is read each error is removed from the queue When all errors have been read the query returns 255 255 0 The error response string format CH CMD ERR containing three fields where CH indicates the channel number where the error occurs if error is not related to channel or no error occurs this field is 255 CMD indicates the command index if error is not related to a command or no error occurs this field is 255 Please refer to Appendix A for c
41. GURATION DC OUPUT CONNECTOR REMOTE SENSE CHARACTERISTICS LOAD CONSIDERATION AND MULTIPLE LOADS CONNECTION SPECIFICATION FOR SPS SERIES OUTPUT TERMINALS AND WIRES OPERATING CHARACTERISTIC AND CONFIGURATIONS DIMENSIONAL DRAWINGS INSTALLATION INTRODUCTION BASIC SET UP PROCEDURE INSPECTION CLEANNING AND PACKAGING RETURNING POWER SUPPLIES TO THE MANUFACTURE PACKAGING FOR SHIPPING OR STORAGE LOCATION MOUNTING AND VENTILATION FUSE REPLACEMENT AC INPUT POWER CONNECTION AC INPUTE CONNECTOR AC INPUT CORD LOAD WIRING LOAD WIRING LENGTH FOR OPERATION WITH SENSE LINES NOISE AND IMPEDANCE EFFECTS LOAD CONNECTIONS REVERSE POLARITY INDUCTIVE LOADS CONNECTING SINGLE LOADS REMOTE SENSE CONFIGURATION PARALLEL CONNECTION OPERATION CONNECTING MULTIPLE LOADS PARALLEL POWER DISTRIBUTION RADIAL POWER DISTRIBUTION METHOD BATTERY CHARGING THREE LOCAL OPERATION INTRODUCTION STANDARD OPERATION OPERATING MODES CONSTANT VOLTAGE MODE OPERATION CONSTANT CURRENT MODE OPERATION AUTOMATIC MODE CROSSOVER SETTING THE OVER VOLTAGE PROTECTION FRONT PANEL OVP OPERATION 1 1 WWWW WWW WH W 1 hohe amp amp 2 TTL SHUTDOWN PROGRAMMING WITH EXTERNAL VOLTAGE SOURCES REMOTE MONITORING AND STATUS INDICATORS INTRODUCTION OF MASTER SLAVE OPERATION OPTIONAL SINGLE ADRESS MULTIPLES CHANNEL CONFIGURATION MASTER SLAVE INSTALLATION POWER ON INITIALIZATION POWER CYCLING USING MULTIPLE SUPPLIES CONFIGURING MULTIPLE SUPPLIES FOR SERIES
42. LED Display 4 CV CC Status Indicator 5 ON OFF Status Indicator 6 Fault Status Indicator Legend OVT Over Voltage Protection OTT Over Temperature Protection OCT Over Current Protection RI Remote Inhibit External TTL Shutdown Low Activated T Air Intake Vent 8 Vout OV Encoder 9 Vour OV Adjustment Indicator 10 Iour OC Encoder 11 Iour OV Adjustment Indicator Fault Condition Light Color Light Status OVT GREEN SOLID OTT RED FLASH OCT RED SOLID RI TTL_SD ORANGE SOLID Provides air intake for maximized and effective heat dissipation Preview and Configure Vour and OV Settings Displays the edited mode via different colored LEDs Preview and Configure Iour and OC Settings Displays the edited mode via different colored LEDs NOTE Please refer to the next page for detailed operations and description of items 8 11 SETTING VOLTAGE VOUT amp OVER VOLTAGE OV Start by locating the Encoder amp LED on the left side and refer to the table below for description r JINAN UU TCO SET NOTE Preview Mode and Edit Mode will exit after 5 seconds of idle activity ENCODER ENCODER PRESSED ACTION FUNCTION LED STATUS Tap Once Preview Vour Setting GREEN Vout Setting Press amp Hold Edit Setting GREEN Vour Setting Vour OV Tap in edit mode Select Digit to Edit GREEN Vo
43. LIST VOLT TIME and LIST CURR TIME and the list step LIST VOLT STEP and LIST CURR STEP A count command LIST COUN determines how many times the power supply sequences through a list before that list is completed Each list can have from 1 to 20 points LIST COUN This command sets the number of times that the list is executed before it is completed The command accepts parameters in the range 1 through 60000 but any number greater than 65534 Command Syntax Parameters RST Value Examples Query Syntax Returned Parameters Related Commands LIST COUNt lt channel gt lt NR1 gt lt Channel gt 1 31 channel number lt NR1 gt 1 60000 number of times 1 LIST COUN 1 3 LIST COUNt lt channel gt lt NR1 gt number of times LIST CURR LIST VOLT 4 23 LIST CURR This command specifies the output current points in a list The current points are given in the command parameters which are separated by commas Up to 20 points may be entered and the output current values specified by the points will be generated in the same order as they were entered Command Syntax Parameters Default Suffix Examples Query Syntax Returned Parameters Related Commands LIST CURR STAT LIST CURRent lt channel gt lt point gt lt NRf gt lt channel gt 1 31 channel number lt point gt 1 20 point number lt NRf gt minimum to maximum current value of the channel A LIST CURR 1 12 5 LIST CURRent lt cha
44. NDICATORS Remote monitoring of the output voltage and current readback signals can be obtained from the I O connector on the rear panel Pins 8 and 9 output a 0 to 5Vde signal indicating 0 100 of the rated output voltage Pins 10 and 11 output a 0 to 5Vde signal indicating 0 100 of the rated output current CAUTION In order to provide proper reading the units require high input impedance INTRODUCTION OF MASTER SLAVE OPERATION OPTIONAL The SPS power supply with remote interface option is equipped with an internal master controller for slaving SPS power supplies The maximum number it can control is 31 power supplies and is configured as a daisy chained system via an RS485 bus as shown in Figure 3 1 In order to operate the controller a computer with a remote interface is required All communication to the controller is done through a single address User can configure both master and slave power supplies to be controlled by the Master SPS unit SINGLE ADDRESS MULTIPLE CHANNEL CONFIGURATION The SPS Master unit can accept from to 31 channels of power units Each unit must have its own individual channel number which can be set by the DIP Switch located at the rear panel of each power unit All the channels are controlled via the Master which is connected to a remote interface bus through the GPIB RS 232 Ethernet connector located at the rear panel The controller s address must be set as described in the next
45. OPERATION CONFIGURING MULTIPLE SUPPLIES FOR PARALLEL OPERATION SENSING FOR PARALLEL OPERATON CONFIGURING MULTIPLE SUPPLY FOR SPLIT OPERATION FOUR REMOTE OPERATION FIVE INTRODUCTION GPIB CAPABILITIES OF THE POWER SUPPLY RS 232 CAPABILITIES OF THE POWER SUPPLY ETHERNET CAPABILITIES OF THE POWER SUPPLY PROGRAMMING COMMAND SET FOR SPS POWER SUPPLY COMMON COMMANDS LIST SUBSYSTEM COMMANDS SYNTAX NON SCPI COMMANDS IEEF 488 1 COMMANDS DESCRIPTION OF COMMON COMMANDS DESCRIPTION OF SUBSYSTEM COMMANDS CALIBRATION SUBSYSTEM CHANNEL SUBSYSTEM CURRENT SUBSYSTEM LIST SUBSYSTEM MEASUREMENT SUBSYSTEM OUTPUT SUBSYSTEM PARALLEL SUBSYSTEM STATUS SUBSYSTEM SYSTEM SUBSYTEM TRIGGER SUBSYSTEM VOLT SUBSYSTEM NON SCPI COMMANDS AND THEIR EQUIVALENT SCPI COMMANDS TEEE 488 1 COMMANDS AND THEIR EQUIVALENT SCPI COMMANDS SCPI GPIB COMMAND STATUS REPORTING OPERATION STATUS REGISTER NON SCPI COMMAND STATUS REPORTING COMMAND INDEX AND ERROR CODE FOR SYST ERR QUERY CALIBRATION INTRODUCTION CALIBRATION SERVICE ENVIRONMENT AND PRECAUTIONS CALIBRATION CONFIGURATION VOLTAGE CALIBRATION SETUP VOLTAGE CALIBRATION COMMAND STEP SEQUENCE CURRENT CALIBRATION SETUP CURRENT CALIBRATION COMMAND STEP SEQUENCE RE INSTALLING CALIBRATION DATA vi ONE FEATURES AND SPECIFICATION INTRODUCTION This SPS Series Switching Power Supply from American Reliance Inc offers a complete solution to power supply system requirements Thi
46. OT lt channel gt lt value gt OVSET 1 lt value gt VOLT PROT I lt value gt OVSET2 lt value gt VOLT PROT 2 lt value gt OVSET lt channel gt VOLT PROT lt channel gt OVSET1 VOLT PROT 1 OVSET2 VOLT PROT 2 STATUS N A SYST GPIB SCPI SYST GPIB SCPI SYST GPIB 4881 SYST GPIB 4881 VOUT lt channel gt MEAS VOLT lt channel gt VOUTI MEAS VOLT 1 VOUT2 MEAS VOLT 2 VSET lt channel gt lt value gt VOLT lt channel gt lt value gt VSET1 lt value gt VOLT 1 lt value gt 4 42 VSET lt channel gt lt value gt VOLT lt channel gt lt value gt VSET1 lt value gt VOLT 1 lt value gt VEST2 lt value gt VOLT 2 lt value gt VSET lt channel gt VOLT lt channel gt VSET1 VOLT I VSET2 VOLT 2 lt Note gt For IEEE 488 1 option status reporting please refer to 6 2 Status reporting Non SCPI command status reporting part of this manual SCPI GPIB COMMAND STATUS REPORTING The following figure shows the SCPI GPIB command status model of the power supply Operation Status Questionable Status Condition Event Enable OV OC CV CC OT OUT oc oc 5 LSV 5 2 LSC 2 Q POL Q 3 TTL Q pa A UNR Status Sr ORO Byte equest UV Enable PAR Nu NU NU R NU oc QD Q STAT OPER STAT QUES STAT QUES ENAB MSA 3 O SE x SRQ a Standard Event Status Event Enable CSTB SRE OPC NU X Servi
47. PIB Address RJ45 connector for Ethernet interface OPTIONAL Standard USB Connector for USB interface OPTIONAL AC input terminal block Chassis line Ground lug screw External Output Shutdown Shutdown the output when short External Fault Indicator Pulls low when faults occur in the system Output and Remote Sense Connections GPIB ADDRESS SWITCH The SPS must be assigned a GPIB address This is done by configuring the DIP switch located at the rear of the unit The available addresses available are 0 31 The table below indicates the DIP switch position for each address TABLE 1 4 GPIB ADDRESS DIP SWITCH Address 1 LSB 2 3 4 5 Address 1 LSB 2 3 4 5 0 0 0 0 0 0 16 0 0 0 0 1 1 1 0 0 0 0 17 1 0 0 0 1 2 0 1 0 0 0 18 0 1 0 0 1 3 1 1 0 0 0 19 1 1 0 0 1 4 0 0 1 0 0 20 0 0 1 0 1 3 1 0 1 0 0 21 1 0 1 0 1 6 0 1 1 0 0 22 0 1 1 0 1 7 1 1 1 0 0 23 1 1 1 0 1 8 0 0 0 1 0 24 0 0 0 1 1 9 1 0 0 1 0 25 1 0 0 1 1 10 0 1 0 1 0 26 0 1 0 1 1 11 1 1 0 1 0 27 1 1 0 1 1 12 0 0 1 1 0 28 0 0 1 1 1 13 1 0 1 1 0 29 1 0 1 1 1 14 0 1 1 1 0 30 0 1 1 1 1 15 1 1 1 1 0 31 1 1 1 1 1 OFF 0 Least Significant Bit LSB LL ON 1 12345 FIGURE 1 5 GIPB ADDRESS SWITCH CHANNEL ADDRESS SWITCH The table below indicates the DIP Switch position for setting the channel number on the SPS Power Supply TABLE 1 5 CHANNEL ADDRESS DIP SWITCH Channel 1 LSB 2 3 4 5 Channel 1 LSB 2 3 4 5 1
48. R VOLT SERI CHAN SER SHUT DOWN CHAN SHUT SYST OFFS CAL OFFS SYST SLOPE CAL SLOP UNDER PROT STAT VOLT PROT UND VOLT CAL SAV CAL VOLT SAVE lt Note gt The short form for command in parallel subsystem is changed from PARA to PAR to conform with SCPI header syntax described in section 7 6 of IEEE 488 2 On the other hand in order to comply with AMREL old command syntax an exception must be made The PARALLEL header can work with all three forms PAR PARA and PARALLEL Same case with GROUP header it can work with GRO GROU and GROUP all three forms SYST CHAN This command sets the current active channel Command Syntax SYST CHAN lt channel gt Parameters Channel number 1 31 Example SYST CHAN 2 sets channel 2 as current active channel Query Syntax SYST CHAN Returned Parameters lt NRI1 gt Representing current active channel SYST STATUS This query reads the value from status register Query Syntax SYST STATUS lt channel gt Parameters Channel numbers 1 31 Returned parameters Decimal value representing status register 4 41 Bit configurations for status register table Bit Position 7 6 5 4 3 2 1 Bit Weight 128 64 32 16 8 4 2 1 Definition CC CV NU NU OC Set OV Set OUT OV OC OC Over current protection circuit has tripped OV Over voltage protection circuit has tripped OUT Output is set to ON OV Set OVP is set to ON OC Set OCP is set to ON NU not used
49. RR STEP 2 AUTO LIST CURRent STEP lt channel gt lt CRD gt NONE AUTO ONCE list step LIST CURR LIST CURR STAT LIST CURR TIME 4 24 LIST CURR TIM This command sets the dwelling time for the output current list of the specified point Each point specifies the time in milliseconds that the output of the power supply is to remain at the level specified by the corresponding point in the current list if the CURR LIST STEP is set to NONE or AUTO At the end of the dwell time the output of the power supply is set to OFF Command Syntax Parameters Default Suffix Examples Query Syntax Returned Parameters Related Commands LIST VOLT LIST CURRent TIMe lt channel gt lt point gt lt NR1 gt lt channel gt 1 31 channel number lt point gt list point number lt NR1 gt 1 99990 dwelling time ms LIST CURR TIM I 10 1000 LIST CURRent TIMe lt channel gt lt point gt lt NR1 gt dwelling time LIST CURR STAT This command specifies the output voltage points in a list The voltage points are given in the command parameters which are separated by commas Up to 20 points may be entered and the output voltage values specified by the points will be generated in the same order as they were entered Command Syntax Parameters Default Suffix Examples Query Syntax Returned Parameters Related Commands LIST VOLT STAT LIST VOLTage lt channel gt lt point gt lt NRf gt lt channel gt 1 31 cha
50. Regulation CV 0 01 Vm 2mvV CC 0 01 Im 2mA Load Regulation CV 0 02 Vm 5mV CC 0 03 Vm 5mV Efficiency 80 PARD Ripple amp Noise CV 10mVrms CV 50mVpp Transient Response 1 3mS for 50 to 100 load change within 1 of nominal voltage Remote Sense Voltage drop lt 5VDC output line Drift over 8 hours amp 30 minutes warm up period 0 01 10mV 1 10 Operating Temperature ambient 0 C to 50 C Storage Temperature 40 C to 70 C Temperature Coefficient 30 minutes warm up period 100ppm C for CV 300ppm C for CC Humidity 0 C to 90 C RH non condensing Output Isolation 600VDC Front Panel Voltage 10 turn Knob Current 10 turn Knob ON OFF line circuit breaker Display LED Module 37 digits CV CC OVP LED status indicators SPS 60 20 AC Line Input 120VAC 10 240VAC 10 Line Frequency 50 60Hz Topology Switch mode Constant Voltage CV Constant Current CC Auto Crossover Outputs 1 Output Voltage 60VDC MAX Output Current 20ADC MAX Output Power 1 200 Watts MAX Programming Resolution 16mV 35mA Programming Accuracy Voltage 0 2 10 mV Current 0 3 10mA SPS 80 15 Readback Accuracy Voltage 0 2 20mV Current 0 3 20mA Line Regulation CV 0 01 Vm 2mvV CC 0 01 Im 2mA Load Regulation CV 0 02 Vm 5mV CC 0 03 Vm 5mV Efficiency 80 PARD Ripple amp Noise
51. Returns model number Sets Queries output shut down time Sets Queries serial number Returns channel version Sets Queries the output current level Sets Queries the current triggered level Resets latched current protection Sets Queries current protection state Sets Queries the number of times for a list Sets Queries current value for a list point Sets Queries current list state Sets Queries list step Sets Queries current dwelling time for a list point Sets Queries voltage value for a list point Sets Queries voltage list state Sets Queries voltage list step Set Queries voltage dwelling time for a list point Returns current measured value Sets Queries delay time for measuring Returns both voltage and current measured value Returns voltage measured value 4 7 OUTPut STATe lt channel gt lt bool gt PROTection CLEar lt channel gt RELay STATe lt channel gt lt bool gt POLarity lt channel gt lt polarity gt PARallel CLEar lt group gt CURRent lt group gt lt value gt GROup lt group gt lt channel gt OUTPut RELay lt group gt lt bool gt RELay POLarity lt group gt lt n gt TRIGger lt group gt lt bool gt STATe lt group gt lt bool gt VOLTage lt group gt lt value gt STATus OPERation EVENt lt channel gt QUEStionable EVENt lt channel gt ENABIe lt channel gt SYSTem BUZZer lt bool gt CHANnel MAXimum lt n gt CON
52. Sets Queries Ethernet subnet value Returns value of Protect Event Status register Returns the firmware version number Enables output trigger Sets Queries delay time for output trigger 4 8 VOLTage LE Vel IMMediate lt channel gt lt value gt TRIGgered lt channel gt lt value gt PROTection CLEar lt channel gt COUNt lt channel gt lt value gt LE Vel lt channel gt lt value gt STATe lt channel gt lt bool gt UNDer STATe lt channel gt lt bool gt NON SCPI COMMANDS CURR CAL SA VE lt channel gt lt n gt MOD lt channel gt PARA CLE lt group gt PARA CURR lt group gt lt value gt PARA GROup lt group gt lt channel gt PARA OUTP RELay lt group gt lt bool gt PARA OUTP RELay POL lt group gt lt n gt PARA OUTP TRIG lt group gt lt bool gt PARA STAT lt group gt lt bool gt PARA VOLT lt group gt lt value gt PROT CHAN SERI lt channel gt lt serial number gt SHUT DOWN lt channel gt lt value gt SYST CHAN lt channel gt SYST OFFSet lt channel gt lt n gt lt value gt SYST SLOPe lt channel gt lt n gt lt value gt SYST STATUS VOLT CAL SAVE lt channel gt lt n gt IEEE 488 1 COMMANDS IOUT lt channel gt IOUT1 IOUT2 ISET lt channel gt lt value gt ISET1 lt value gt ISET2 lt value gt ISET lt channel gt ISET1 ISET2 OCP lt channel gt lt bool gt OCP1 lt bool gt OCP2 lt bool gt OUT lt channel gt lt bool gt OUT 1
53. Sol BAUD lt baudrate gt EOS lt n gt DEFault OUTPut lt n gt EOS lt n gt ERRor GPIB EOS IDLE NET ADDRess DHCP EOS GATE STATe SUBNet PROT VERSion TRIGger STARt IMMediate DELay lt channel gt lt value gt Sets Queries output status Resets latched protection Sets Queries output relay state Sets Queries output relay polarity Clears channels assigned to parallel group Sets Queries average current value for each channel inside a parallel group Sets Queries assigned channels for a group Sets relay state for each channel Sets relay polarity for each channel Sets output state for each channel Sets Queries parallel current sharing state Sets Queries voltage value for a group Returns the value of operation event register Returns the value of questionable event register Enables Queries the specific bit in the questionable enable register Sets Queries system buzzer mode Sets Queries maximum number of channels in a system Sets Queries RS 232 baud rate value Sets Queries RS 232 EOS mode Sets Queries default power on output status Sets Queries current interface EOS mode Returns error number and string Sets Queries GPIB EOS mode Sets Queries Master Slave mode Sets Queries Ethernet IP address Queries if the DHCP is enabled Sets Queries Ethernet EOS mode Sets Queries Ethernet default gateway IP address Queries Ethernet configuration state
54. Status and Fault LED indicators for real time and user friendly monitoring e Total Modular System Control o Control multiple units as a single block and master slave parallel power supplies with built in active current sharing via RS 485 amp zero stack with enhanced front panel ventilation to achieve simple and economical system expansion in a zero stack configuration o Output Sequencing precisely controls individual power supply output on off with timed delays o Embedded RS 232 RS 485 IEEE488 2 SCPI GPIB amp USB Ethernet Option for ATE Applications o Programmable OVP Over voltage Protection and OCP Over current Protection redundant OTP Over temperature Protection amp UVP Under voltage Protection o Interlock protection ready Remote Inhibit RI amp TTL Fault Output Signal for system level protection e Basic RS 485 only control slave models available 1 1 FRONT PANEL CONTROLS Use the figure below to familiarize your self with this instrument SPS V Panel N OCU OU 4 SEOs lt _ 4 gt S i 5 FRONT PANEL OF SPS V Power Supply Power On Off for the unit Digital LED Voltmeter Digital LED Ammeter CV Green Indicator CC Orange Indicator ON Green Indicator OFF No Indicator FRONT PANEL FEATURES i Power On Off Switch 2 Main Voltage LED Display 3 Main Current
55. T INCLUDED VENTILATION Whether you place the power supply in a rack or on a bench allow cooling air to reach the ventilation inlets on the sides of the instrument and allow 4 in 101 6mm of unrestricted air space at the rear of the unit for the fan exhaust Any ventilation space at the top and bottom of the supply will further lower internal operating temperatures FUSE REPLACEMENT If the fuse is suspected to be defective it should be inspected and if necessary replaced To inspect or replace the fuse please contact to American Reliance service department before perform the following steps 1 Disconnect the AC line cord from the unit to reduce electrical shock hazard 2 Remove the case of the instrument The fuse holders are at the printed circuit board Test the fuse for electrical continuity with an ohmmeter 3 If the fuse is found to be defective replace it with a replacement fuse as specified in the following table for both models of the SPS units Fuse Rating Specification Printed Circuit Location 8Amp 250V 10 X 38mm Fast P N 280046D F301 3 15Amp 250V 5 X 20mm Fast P N 280044B F101 25Amp 250V 6 X 30mm Fast P N 280044B F102 4 Replace the fuse in the fuse holder and re install 5 Reconnect the AC power cord A CAUTION USE OF ANY FUSE OTHER THAN THE ONE SPECIFIED MAY CAUSE DAMAGE TO THE UNIT POSE A SEVERE FIRE HAZARD AND WILL VOID THE WARRANTY 2 4 AC INPUT POWER CONNECTION
56. UBSYSTEM The commands in this subsystem allow users to do the following e Enable and disable the calibration mode e Calibrate the current and voltage output levels and store new calibration constants in nonvolatile memory e Reload calibration data and store it in nonvolatile memory CAL CURR This command can only be used in the calibration mode It enters a current value that users obtain by reading an external meter Users must first select a calibration level CAL CURR LEV for the value being entered Two successive values one for each end of the calibration range must be selected and entered The power supply then computes new current calibration constants These constants are not stored in nonvolatile memory until saved with the SAV lt channel gt commands Command Syntax Parameters Examples Query Syntax Related Commands CAL CURR LEV CALibrate CURRent DATA lt channel gt lt NRf gt lt channel gt 1 31 channel number lt NRf gt External reading in Amps CAL CURR 1 3 2223 CAL CURR DATA 1 5 000 None CAL SAV CAL STAT CAL CURR LEV This command can only be used in the calibration mode It sets the power supply to a current calibration point that is then entered with CAL CURR DATA During calibration three points must be entered and the low end point MIN must be selected and entered first Command Syntax Parameters Examples Query Syntax Related Commands CAL CURR SAV CALibrate CURRent LE
57. URR RST 4 22 CURR PROT CLE This command clears the over current protection status and it dose not clear the over current protection setting CURR PROT STAT After this command output remains in OFF state Command Syntax CURRent PROTection CLEar lt channel gt Parameter lt channel gt 1 31 channel number Example CURR PROT CLE 1 Query Syntax None Related Commands CURR PROT STAT CURR PROT STAT This command enables or disables the power supply over current OC protection function If the over current protection function is enabled and the power supply goes into constant current CC mode then the output is disabled and the Questionable Condition status register OC bit is set STAT QUES An over current status can be cleared with the OUTP PROT CLE command Command Syntax Parameters RST Value Examples Query Syntax Returned Parameters Related Commands LIST SUBSYSTEM CURRent PROTection STATe lt channel gt lt bool gt lt channel gt 1 31 channel number lt bool gt 0 1 OFF ON OFF CURR PROT STAT 1 0 CURR PROT STAT 1 ON CURRent PROTection STATe lt channel gt 0 1 OUTP PROT CLE RST This subsystem controls the generation of parameter lists that sequence the power supply output through values of voltage and current Two subsystem commands specify lists of output voltages LIST VOLT and currents LIST CURR the time interval that each value point of a list is to remain in effect
58. Vel lt channel gt lt CRD gt lt channel gt 1 31 channel number lt CRD gt MIN MID MAX CAL CURR LEV 1 MIN CAL CURR LEV I MAX None CAL CURR DATA CAL STAT This commands reloads the current calibration constants to power supply These constants are not stored in nonvolatile memory until saved with the SAV lt channel gt commands Command Syntax Parameters Examples Query Syntax Related Commands CALirate CURRent SA Ve lt channel gt lt NR1 gt CURRent CALibrate SA Ve lt channel gt lt NR1 gt lt channel gt 1 31 channel number lt NRI1 gt 1 4 Calibration mode 1 Voltage output 2 Current output 3 Voltage read back 4 Current read back CAL CURR SAV 1 2 CURR CAL SAV 1 4 None SAV 4 17 CAL OFFS This command resets or queries the power supply s calibration offset constant value These constants are not stored in nonvolatile memory until saved with the CAL CURR SAV or CAL VOLT SAV and SAV commands Command Syntax Parameters Example Query Syntax Return Parameter Related Commands CAL PASS CALibrate OFFSet lt channel gt lt NR1 gt lt NRf gt SYSTem OFFSet lt channel gt lt NR1 gt lt NRf gt channel 1 31 channel number lt NR1 gt 0 4 calibration mode 0 OVP offset 1 Voltage output 2 Current output 3 Voltage read back 4 Current read back lt NRf gt offset value SYST OFFS 1 1 0 0665278 CAL OFFS 1 1 0 0665278 SYSTem OFFSet lt chan
59. X Programming Resolution 9mV 8mA Programming Accuracy Voltage 0 2 10 mV Current 0 3 10mA SPS 40 30 Readback Accuracy Voltage 0 2 20mV Current 0 3 20mA Line Regulation CV 0 01 Vm 2mvV CC 0 01 Im 2mA Load Regulation CV 0 02 Vm 5mV CC 0 03 Vm 5mV Efficiency 80 PARD Ripple amp Noise CV 10mVrms CV 50mVpp Transient Response 1 3mS for 50 to 100 load change within 1 of nominal voltage Remote Sense Voltage drop lt 5VDC output line Drift over 8 hours amp 30 minutes warm up period 0 01 10mV Operating Temperature ambient 0 C to 50 C Storage Temperature 40 C to 70 C Temperature Coefficient 30 minutes warm up period 100ppm C for CV 300ppm C for CC Humidity 0 C to 90 C RH non condensing Output Isolation 600VDC Front Panel Voltage 10 turn Knob Current 10 turn Knob ON OFF line circuit breaker Display LED Module 37 digits CV CC OVP LED status indicators AC Line Input 120VAC 10 240VAC 10 Line Frequency 50 60Hz Topology Switch mode Constant Voltage CV Constant Current CC Auto Crossover Outputs 1 Output Voltage 40VDC MAX Output Current 30ADC MAX Output Power 1 200 Watts MAX Programming Resolution 10mV 7mA Programming Accuracy Voltage 0 2 10 mV Current 0 3 10mA Readback Accuracy Voltage 0 2 20mV Current 0 3 20mA Line
60. age calibration constants to power supply These constants are not stored in nonvolatile memory until saved with the SAV lt channel gt commands Command Syntax Parameters Examples Query Syntax Related Commands CHANNEL SUBSYSTEM CALirate VOLTage SAVe lt channel gt lt NR1 gt VOLTage CALibrate SA Ve lt channel gt lt NR1 gt lt channel gt 1 31 channel number lt NRI1 gt 1 4 Calibration mode I Voltage output 2 Current output 3 Voltage read back 4 Current read back CAL VOLT SAV 1 2 VOLT CAL SAV 14 None SAV The commands in this subsystem only exist in Master Slave power supply system They allow users to do the following e Query individual channel s model information e Set or query output shut down time CHAN MOD This query returns the model number of a specified channel Query Syntax Parameters Returned Parameters Examples Related Commands CHANnel MODel lt channel gt MODel lt channel gt lt channel gt 1 31 channel number lt CRD gt represents model number CHAN MOD 1 MOD 1 None 4 20 CHAN SER This command sets or queries the power supply s serial number for a specified channel Command Syntax Parameters Examples Query Syntax Returned parameters Related Commands CHAN SHUT optional feature CHANnel SERial lt channel gt lt CRD gt SERI lt channel gt lt CRD gt lt channel gt 1 31 channel number lt CRD gt 6 charac
61. alue gt where the value is assigned by your network administrator 3 Set IP net mask as value using command SYST NET SUBN lt value gt where the value is provided by your network administrator 4 Set IP network gateway as value using command SYST NET GAT lt value gt where the value is provided by your network administrator Using AMREL software tools to communicate with your power supply via Ethernet interface American Reliance Inc provides free software tools for you to configure and communicate with your power supply Please contact AMREL customer support for details One of the most convenient tools for you to choose is AMREL eTool4 ConfigTool This software tool automatically checks all connected power supply units on Ethernet when both PC and the power supply units are connected to Ethernet along with basic information of the power supply units such as model number maximum voltage and current and so on Also it automatically sets Ethernet configurations for all connected power supply units if your network is DHCP enabled This software tools comes with your purchase of the unit or you can download it from AMREL ftp site Please contact AMREL customer support for details or refer to the following 4 3 Please do the following steps to download install and use eTool4 ConfigTool 1 Installation 1 Copy all the needed files to a local computer from E Power folder at AMREL ftp site ftp 66 121
62. ands CLS Meaning and Type Clear Status Device Status Description This command causes the following actions see Status Reporting for descriptions of all registers e Clears the following registers o Standard Event Status ESR returned value o Status Byte STB returned value e Clears the Error Queue SYST ERR returned value e Also clears over voltage protection status to comply with AMREL old 488 1 unit Command Syntax CLS Parameters None Query Syntax None Related Commands ESR STB SYST ERR 4 10 ESE Meaning and Type Event Status Enable Device Status Description This command programs the Standard Event Status Enable register bits The programming value determines which events of the Standard Event Status Event register see ESR are allowed to set the Event Summary Bit of the Status Byte register A 1 in the bit position enables the corresponding event All of the enabled events of the Standard Event Status Event register are logically ORed to cause the Event Summary Bit of the Status Byte register to be set Bit Configuration of Standard Event Status Enable Register Table Bit Position 7 6 5 4 3 2 1 0 Bit Name PON 0 CME NU NU QYE 0 OPC Bit Weight 128 64 32 16 8 4 2 1 CME Command error OPC Operation complete PON Power on QYE Query error NU Not used Command Syntax ESE lt NRI gt Parameters 0 to 255 Power On Value 12
63. ce O oe 2 see NU NU 3 CME I l NU Protection Event Status PON 32 24w 16 8 1 Channel IIIT ESR ESE PROT CHAN 4 43 The above figure shows the status register structure of the power supply The Standard Event Status Byte and Service Request Enable registers perform standard GPIB functions The Operation Status Questionable Status and Protection Event Status registers implement status functions specific to the power supplies Bit configuration for each register is also shown in the above figure OPERATION STATUS REGISTER The Operation Status Condition register latches any operation condition that is passed to the power supply by users It is a read only register Use STAT OPER query to read the register but not clear it Questionable Status group The Questionable Status group consists of two registers The Questionable Status Event register holds real time status of the power supply It is a read only register Use STAT QUES query to read it but not clear it The Questionable Status Enable register is a mask for enabling specific bits from the Questionable Event register to set the Questionable Data QD bit of the Status Byte register This bit bit 3 is the logical OR of all the Questionable Event register bits that are enabled by the Questionable Status Enable register Use STAT QUES ENAB command to set or read this register Standard Event Status group Standard Event Status grou
64. e of a disabled output is a condition of zero output voltage Command Syntax OUTPut STATe lt channel gt lt bool gt Parameters lt channel gt 1 31 channel number lt bool gt 0 OFF I ON RST Value 0 Examples OUTP 1 ON OUTP STAT 1 OFF Query Syntax OUTPut STATe lt channel gt Returned Parameters 0 1 Related Commands RST OUTP PROT CLE This command clears any over voltage OV over current OC or under voltage UV protection features The corresponding status bit in STAT QUES is also cleared After this command the output is remained OFF Command Syntax OUTPut PROTection CLEar lt channel gt Parameters lt Channel gt 1 31 channel number Examples OUTP PROT CLE I Query Syntax None Related Commands OUTP STAT STAT QUES OUTP REL This command is valid only if the power supply is configured for the optional relay connector Programming ON opens the relay contacts programming OFF closes them The relay is controlled independently of the output state If the power supply is supplying power to a load that power will appear at the relay contacts during switching If the power supply is not configured for the relay connector sending either relay command has no affect but the corresponding relay bit STAT QUES changes accordingly Command Syntax Parameters RST Value Examples Query Syntax Returned Parameters Related Commands OUTPut RELay STATe lt channel gt lt bool gt lt channel gt
65. e of the Status Operation Event register The Event register is a read only register which holds latches all operation events that are set by users Reading the Operation Event register does not clear it Query Syntax Parameters Returned Parameters Examples Related Commands Status Operation Registers STATus OPERation EVENt lt channel gt lt channel gt 1 31 channel number lt NR1 gt Register Decimal Value STAT OPER I RST The bit configuration of Status Operation register is shown in the following table Bit Configuration of Operation Register Table Bit Position 7 6 5 4 3 2 1 0 Bit Name AUTO ONCE WTG REL POL OV OC CAL Bit Weight 128 64 32 16 8 4 2 1 Bit Position 15 14 13 12 11 10 9 8 Bit Name NU NU NU PARA LSV LSC TTL OUT Bit Weight 32768 16384 8192 4096 2048 1024 512 256 CAL Interface is computing new calibration constants OC The over current protection operation is ON OV The over voltage protection operation is ON POL The relay is in negative position set to REVerse REL The relay operation is connect set to CLOSE WTG Interface waiting for a trigger ONCE Stepping on dependant upon the ONCE trigger function AUTO Stepping on is depend upon AUTO trigger function OUT Output is configured to ON TTL TTL shut down LSC The current stepping operation is ON LSV The voltage stepping operation is ON PARA Power supply is in paralle
66. ection lt NOTE gt The sense leads must always be connected either for local or remote sensing Operation with the sense leads disconnected will cause the output fall to zero or to be unregulated REMOTE SENSE CONFIGURATION DC OUTPUT CONNECTOR CAUTION Turn off the power supply before making any connections on the rear panel terminal block Configure the unit for remote sensing by first disconnecting the shorting plugs between the sense and load terminals Connect the load and sense leads to the load as in Figure 1 7 Keep in mind that sense and load leads should be as short as possible Additionally the sense leads resistance should be no greater than 0 5 ohm lead and the voltage drop over the load leads should be no greater than 2 V lead DC OUTPUT CONNECTOR gt 20 Negative Output Terminal Positive Output Terminal LOAD FIGURE 1 7 REMOTE SENSE CONFIGURATIONS 1 7 REMOTE SENSE CHARACTERISTICS OUTPUT NOISE Any noise picked up on the sense leads will appear at the supply s output and may adversely affect CV load regulation Twist the sense leads to minimize external noise pickup and run them parallel and close to the load leads In noisy environments it may be necessary to shield the sense leads Ground the shield at the power supply end only Do not use the shield as one of the sensing conductors STABILITY When the supply is connected for remote sensing it is possible for the impedance of the load wires
67. edures Work at a bench with adequate room and support for the test unit and for all equipment required To reduce shock hazard use only an insulated straight bladed screwdriver when calibrating NEVER calibrate these units alone Ensure that someone is present who can help should an accident occur CALIBRATION CONFIGURATION You will need the following equipment when calibrating your power supply e 5 digit true RMS voltmeters DMM 0 05 accuracy with test leads e Current shunt ImV AMP 0 25 and connecting wire The recommended current ratings for the DC shunt and connecting wire must be at leas 10 greater than the power supply s output current rating If your product requires calibration and need a calibration kit please contact our sales department at 1 800 654 9838 for more detail information Kit Part Number SPS CAL 5 1 VOLTAGE CALIBRATION SETUP USE THE LARGEST GAUGE POWER SUPPLY AND SHORTEST LENGTH POSSIBLE DMM J Input Connect Voltmeter to measure voltage at sense points as above Power on wait about 1 2 minutes VOLTAGE CALIBRATION COMMAND STEP SEQUENCE 1 2 3 4 5 6 7 8 CAL STAT lt channel gt ON enables the calibration mode CAL VOLT LEV lt channel gt MIN power supply sends low offset voltage to output Read voltage value from DMM and send this value to the power supply using CAL VOLT lt channel gt lt value gt command CAL VOLT LEV lt chann
68. el gt MAX power supply sends high offset voltage to output Read voltage value from DMM and send this value to the power supply using CAL VOLT lt channel gt lt value gt CAL SAVE lt channel gt calculates new voltage calibration data CAL STAT lt channel gt OFF disables the calibration mode SAV lt channel gt saves all calibration data to internal flash memory Please wait about 2 minutes 5 2 CURRENT CALIBRATION SETUP POWER SUPPLY AND SHORTEST LENGTH POSSIBLE USE THE LARGEST GAUGE Sense DMM OR CURRENT METER Output Input Output Input Sense CURRENT SHUNT ImV AMP CURRENT CALIBRATION COMMAND STEP SEQUENCE 1 2 3 4 5 6 7 8 CAL STAT lt channel gt ON enables the calibration mode CAL CURR LEV lt channel gt MIN power supply sends low offset voltage to output Read voltage value from DMM Divide value volts by the current shunt resistance ohms to obtain calculated current value Send this value to the power supply using command CAL CURR lt channel gt lt value gt CAL CURR LEV lt channel gt MAX power supply sends high offset voltage to output Read voltage value from DMM Divide value volts by the current shunt resistance ohms to obtain calculated current value Send this value to the power supply using command CAL CURR lt channel gt lt value gt CAL SAVE lt channel gt saves new current calibration data
69. el number lt CRD gt NONE AUTO ONCE list step RST Value NONE Examples LIST VOLT STEP 1 ONCE LIST VOLT STEP 2 AUTO Query Syntax LIST VOLTage STEP lt channel gt Returned Parameters lt CRD gt NONE AUTO ONCE list step Related Commands LIST VOLT LIST VOLT STAT LIST VOLT TIME LIST VOLT TIM This command sets the dwelling time for the output voltage list of the specified point Each point specifies the time in milliseconds that the output of the power supply is to remain at the level specified by the corresponding point in the voltage list if the VOLT LIST STEP is set to NONE or AUTO At the end of the dwell time the output of the power supply is set to OFF Command Syntax LIST VOLTage TIMe lt channel gt lt point gt lt NR1 gt Parameters lt channel gt 1 31 channel number lt point gt list point numner lt NRI gt 1 99990 dwelling time Default Suffix ms Examples LIST VOLT TIM 1 10 1000 Query Syntax LIST VOLTage TIMe lt channel gt lt point gt Returned Parameters lt NRI gt dwelling time Related Commands LIST VOLTage STAT 4 26 MEASUREMENT SUBSYSTEM The commands queries in this subsystem wither return the current measured at the power supply output terminals or the voltage measured at the sense terminals or set or query the measurement delay time MEAS CURR This query returns the current measured at the power supply output terminals Query Syntax Parameters Default Suffix
70. erature range of 0 to 50 C unless otherwise specified NOTE Specifications are subject to change without notice SPS 8 150 AC Line Input 120VAC 10 240VAC 10 Line Frequency 50 60Hz Topology Switch mode Constant Voltage CV Constant Current CC Auto Crossover Outputs 1 Output Voltage 8VDC MAX Output Current 150ADC MAX Output Power 1 200 Watts MAX Programming Resolution 2mV 39mA Programming Accuracy Voltage 0 2 10 mV Current 0 3 10mA SPS 20 60 Readback Accuracy Voltage 0 2 20mV Current 0 3 20mA Line Regulation CV 0 01 Vm 2mvV CC 0 01 Im 2mA Load Regulation CV 0 02 Vm 5mV CC 0 03 Vm 5mV Efficiency 80 PARD Ripple amp Noise CV 12mVrms CV 75mVpp Transient Response 1 3mS for 50 to 100 load change within 1 of nominal voltage Remote Sense Voltage drop lt 5VDC output line Drift over 8 hours amp 30 minutes warm up period 0 01 10mV Operating Temperature ambient 0 C to 50 C Storage Temperature 40 C to 70 C Temperature Coefficient 30 minutes warm up period 100ppm C for CV 300ppm C for CC Humidity 0 C to 90 C RH non condensing Output Isolation 600VDC Front Panel Voltage 10 turn Knob Current 10 turn Knob ON OFF line circuit breaker Display LED Module 37 digits CV CC OVP LED status indicators AC Line Input 120VAC 10 240VAC 10 Line Frequency 50
71. eriod 100ppm C for CV 300ppm C for CC Humidity 0 C to 90 C RH non condensing Output Isolation 600VDC Front Panel Voltage 10 turn Knob Current 10 turn Knob ON OFF line circuit breaker Display LED Module 37 digits CV CC OVP LED status indicators AC Line Input 120VAC 10 240VAC 10 Line Frequency 50 60Hz Topology Switch mode Constant Voltage CV Constant Current CC Auto Crossover Outputs 1 Output Voltage 150VDC MAX Output Current 8ADC MAX Output Power 1 200 Watts MAX Programming Resolution 40mV 2mA Programming Accuracy Voltage 0 2 10 mV Current 0 3 10mA Readback Accuracy Voltage 0 2 20mV Current 0 3 20mA Line Regulation CV 0 01 Vm 2mvV CC 0 01 Im 2mA Load Regulation CV 0 02 Vm 5mV CC 0 03 Vm 5mV Efficiency 80 PARD Ripple amp Noise CV 15mVrms CV 100mVpp Transient Response 1 3mS for 50 to 100 load change within 1 of nominal voltage Remote Sense Voltage drop lt 5VDC output line Drift over 8 hours amp 30 minutes warm up period 0 01 10mV 1 12 Operating Temperature ambient 0 C to 50 C Storage Temperature 40 C to 70 C Temperature Coefficient 30 minutes warm up period 100ppm C for CV 300ppm C for CC Humidity 0 C to 90 C RH non condensing Output Isolation 600VDC Front Panel Voltage 10 turn Knob Current 10 turn Knob ON OFF line circui
72. et DIMENSIONS A 12 3 SJT 105 C 6 14 3 SJT 105 C 6 LOAD WIRING To select wiring for connecting the load to the power supply consider the following factors Insulation rating of the wire Current carrying capacity of the wire Maximum load wiring length for operation with sense lines Noise and impedance effects of the load lines CURRENT CARRYING CAPACITY As a minimum load wiring must have a current capacity greater than the output current rating of the power supply This ensures that the wiring will not be damaged even if the load is shorted Table 2 4 shows the maximum current rating based on 450 A cm for various gauges of wire rate for 105 C operation Operating at the maximum current rating results in an approximately 30 C temperature rise for a wire operating in free air Where load wiring must operate in areas with elevated ambient temperatures or bundled with other wiring use larger gauges or wiring rated for higher temperature TABLE 2 4 CURRENT CARRYING CAPACITY FOR LOAD WIRING WIRE SIZE AWG MAXIMUM CURRENT A 2 0 303 1 0 247 1 192 2 155 4 97 6 61 8 36 10 21 12 16 14 10 16 6 18 4 20 2 5 2 6 LOAD WIRING LENGTH FOR OPERATION WITH SENSE LINES For applications using remote sensing you must limit the voltage drop across each load line We recommend that you use the larger load wiring to ensure a smaller voltage drop 1V typical max although the product will compensate for up to 5V droop in each line
73. following information User s Name Proof of Purchase User s Address Description of problem Model number Serial number If service is desired such as calibration it must be stated in the enclosed letter For non warranty repairs and for calibration the correct service charge must accompany the unit in the form of a check or money order payable to American Reliance Inc Please do not send cash Contact our service department at 800 654 9838 American Reliance will return the serviced instrument with freight paid by American Reliance via UPS ground service unless otherwise requested NOTE ALL INSTRUMENTS WHICH ARE RETURNED FOR REPAIR OR CALIBRATION MUST HAVE AN ASSIGNED R M A NUMBER WRITTEN ON THE FRONT OF THE PACKAGE THIS NUMBER MAY BE OBTAINED BY OUR SERVICE DEPARTMENT ANY INSTRUMENT DELIVERED WITHOUT THIS NUMBER WILL BE REFUSED AND RETURNED SAFETY SUMMARY lt NOTE gt The following general safety precautions must be observed during all phases of operation of this instrument Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design manufacture and intended use of the instrument American Reliance Inc assumes no liability for the customer s failure to comply with these requirements WARNING Servicing instructions are for use by service trained personnel To avoid dangerous electrical shock do not perform any servicing unless you are qualified to do so
74. fset 2 Once you obtain all the calibration information you can resave this calibration information to the power supply Resave voltage calibration information to power supply Run command Run command Run command Run command Run command power supply SYST SLOPE lt channel gt 1 lt voltage output slope value gt SYST SLOPE lt channel gt 3 lt voltage read back slope value gt SYST OFFSET lt channel gt 1 lt voltage output offset value gt SYST OFFSET lt channel gt 3 lt voltage read back offset value gt VOLT CAL SAVE lt channel gt save new calibration information to Resave current calibration information to power supply Run command Run command Run command Run command Run command power supply SYST SLOPE lt channel gt 2 lt current output slope value gt SYST SLOPE lt channel gt 4 lt current read back slope value gt SYST OFFSET lt channel gt 2 lt current output offset value gt SYST OFFSET lt channel gt 4 lt current read back offset value gt CURR CAL SAVE lt channel gt save new calibration information to Test and save calibration information to FLASH memory After saving the power supply s calibration information you need test the voltage and current output and read back values If all values are within specifications then you can save calibration data to FLASH memory The command to save the information is
75. h triggers sent after OPC will be prevented from executing and will prevent the power supply from accepting further commands RCL Meaning and Type Recall Device State Description This command recalls the power supply profile settings which is saved by SAV command Command Syntax RCL lt channel gt n Parameters lt channel gt 1 31 channel number n 0 3 profile number Query Syntax None Related Commands SAV RST Meaning and Type Reset Device State Description This command resets the power supply to a factory defined state as defined below RST also forces an ABORt command COMMAND STATE COMMAND STATE COMMAND STATE CAL STAT OFF LIST VOLT STAT OFF TRIG DEL 0 CURR LEV IMM 1 0 LIST VOLT STEP NONE UNDER PROT STAT OFF CURR PROT STAT OFF OUTP REL POL NORM VOLT LEV IMM 5 0 LIST COUN 0 OUTP REL STAT OPEN VOLT PROT LEV MAX LIST CURR STAT OFF UTP STAT OFF VOLT PROT STAT OFF LIST CURR STEP NONE PARA STAT OFF Command Syntax RST lt channel gt Parameters None or 1 31 Query Syntax None Related Commands SAV lt Note gt If this command is sent without a channel number it resets all channels connected to the master controller 4 13 SAV Meaning and Type Save Device State Description This command stores the present state of the power supply to a specified location in memory and the profile settings If a particular state is desired at power on it should be stored in a profi
76. he supply is in local sensing mode and connecting multiple loads connecting to the output connect each load to the output terminal using separate load leads This minimizes mutual coupling effects and takes full advantages of the supply s low output resistance Each pair of wires should be as short as possible and twisted or bundled to reduce lead inductance and noise pickup If cabling considerations require the use of distribution terminals that are located remotely from the supply connect the power supply output terminals to the remote distribution terminals by a pair of twisted or bundled wires Connect each load to the distribution terminals separately Remote voltage sensing is recommended in these circumstances Sense either at the remote distribution terminals or if one load is more sensitive than the others directly at the critical load OUTPUT ISOLATION The output of the power supply is isolated from earth ground Either output terminal may be grounded or an external source of voltage may be connected between either output or ground However both output terminals must be kept within 600Vdc of ground This includes the output voltage 1 8 SPECIFICATION FOR SPS SERIES The following is the performance specifications for the SPS Switching Programmable DC Power Series All specifications are at the rear terminals with a resistive load and local sensing unless otherwise stated All specifications apply over the full operating temp
77. ides recommendations and procedures for inspecting installing and testing the power supply BASIC SETUP PROCEDURE Use Table 2 1 to summarize the basic setup procedure and an overall view of the subsections in this section Use the procedure as a quick reference if you are familiar with the installation requirements for the power supply If you want more information each step in the procedure refers to subsequent sections which contain more details Execute each step in the sequence given TABLE 2 1 BASIC SETUP PROCEDUE Step Description Action Reference 1 Inspection Perform an initial physical Inspection cleaning inspection of the supply and packaging 2 Installation Install the instrument on Location mounting bench or rack mount and ventilation ensuring adequate ventilation 3 Input power Connect AC input power AC input power connection 4 Test Perform functional tests for Functional test CV mode CC mode and front panel controls 5 Load Connect the load Load connection 6 Sense Connect sensing lines Local and Remote sense 2 1 INSPECTION CLEANING AND PACKAGING e INITIAL INSPECTION When you first receive your unit perform a quick physical check 1 Inspect the instrument for cracks scratches broken switches connectors and display 2 Make sure there is not damage on the AC power cord the AC in put cover is installed properly and with the strain relief 3 Make sure there in no loose component in the uni
78. is set the password string must match the existing password Otherwise gives an error message CAL VOLT This command can only be used in the calibration mode It enters a voltage value that is obtained from an external meter Users must first select a calibration level CAL VOLT LEV for the value being entered Two successive values one for each end of the calibration range must be selected and entered The power supply then computes new voltage calibration constants These constants are not stored in nonvolatile memory until saved with the CAL SAVE command Command Syntax CALibrate VOLTage DATA lt channel gt lt NRf gt Parameters lt channel gt 1 31 channel number lt NRf gt External meter value in Volts Examples CAL VOLT 1 3 1024 CAL VOLT 1 5 000 Query Syntax None Related Commands CAL SAV CAL STAT CAL VOLT LEV 4 19 CAL VOLT LEV This command can only be used in the calibration mode It sets the power supply to a voltage calibration point that is then entered with CAL VOLT DATA During calibration two points must be entered and the low end point MIN must be selected and entered first Command Syntax Parameters Examples Query Syntax Related Commands CAL VOLT SAV CALibrate VOLTage LE Vel lt channel gt lt CRD gt lt channel gt 1 31 channel number lt CRD gt MINimum MAXimum CAL VOLT LEV 1 MIN CAL VOLT LEV I MAX None CAL VOLT DATA CAL STAT This commands reloads the volt
79. its or burn in applications components TABLE 1 1 AVAILABLE VOLTAGE AND CURRENT RANGES Model Voltage Output Range Current Output Range SPS 8 150 0 8 Vdc 0 150 A SPS12 125 1 5kW 0 12 Vdc 0 125 A SPS 20 60 1 2kW SPS20 75 1 5kW 0 20 Vdc 0 60A 0 75A SPS 35 35 0 35 Vdc 0 35 A SPS 40 30 0 40 Vdc 0 30 A SPS 60 20 1 2kW SPS60 25 1 5kW 0 60 Vdc 0 20A 0 25A SPS 80 15 0 80 Vdc 0 15 A SPS 120 10 0 120 Vdc 0 10 A SPS 150 8 1 2kW SPS150 10 1 5kW 0 150 Vdc 0 8A 0 10A SPS 200 6 0 200 Vdc 0 6 A SPS 300 4 0 300 Vdc 0 4 A SPS 450 2 5 0 450 Vdc 0 2 5 A SPS 600 2 1 2kW SPS 600 2 5 1 5kW 0 600 Vdc 0 2A 0 2 5A FEATURES AND OPTIONS e Automatic mode crossover to constant current or constant voltage mode e Dual encoders front panel on off key front panel indicators amp simultaneous V I Display for real time control amp monitoring and to program amp preview Iset Vset Over current OC and Over voltage OV e Remote programming control with standardized SCPI commands Vjjs7 voltage and I jer current stepping modes for advanced and integrated ATE Testing e 16 bit DAC ADC design for high resolution and accuracy for standalone or burn in testing without the need for external measuring equipment e Convenient and robust automated testing Four Step profiles 20 step points for each profile e Electronic Closed case calibration I minimize down time reduce maintenance costs amp elevate Return on Investment ROI e CV CC OV OC Encoder
80. l operation mode NU Not used STAT QUES This command returns the value of the Questionable Event register The Event register is a read only register which holds latches all events that occurred Reading the Questionable Event register does not clear it Query Syntax Parameters Returned Parameters Examples Related Commands STATus QUEStionable EVENt lt channel gt lt channel gt 1 31 channel number lt NR1 gt Register Decimal Value STAT QUES EVEN 1 RST 4 32 Status Questionable Registers The bit configuration of all Status Questionable registers is as follows Bit Configuration of Questionable Registers Table Bit Position 7 6 5 4 3 2 1 0 Bit Name LSC LSV OUT OT CC CV OC OV Bit Weight 128 64 32 16 8 4 2 1 Bit Position 15 14 13 12 11 10 9 8 Bit Name NU NU TRAC UV ORO UNR TTL POL Bit Weight 32768 16384 8192 4096 2048 1024 512 256 OV Over voltage protection circuit has tripped OC Over current protection circuit has tripped CV The power supply is in constant voltage mode CC The power supply is in constant current mode OT Over temperature status condition exists OUT Power supply output states LSV The voltage list operation LSC The current list operation POL The relay operation is on negative operation TTL TTL shut down is occurred UNR Power supply output is unregulated ORO Output Relay Open 1 Output Relay Close 0 UV
81. le number 0 It then will be recalled at power on if the power supply configuration switch is set for this mode of operation The following power supply states are stored by SAV CURR LEV IMM VOLT LEV IMM LIST CURR TIM LIST VOLT LIST VOLT TIM VOLT PROT LEV LIST COUN LIST CURR Command Syntax Parameters Query Syntax Returned Parameter Related Commands SAV lt channel gt n channel 1 to 31 n 0 to 3 profile number SAV lt channel gt lt NRI gt 0 1 0 Indicates saving successfully I Indicates saving in processing RST RCL NOTE If saved without the profile number SAV lt channel gt it may require 2 3 minutes processing time or at least wait until query returns to 0 SRE Meaning and Type Service Request Enable Device Interface Description This command sets the condition of the Service Request Enable register This register determines which bits from the Status Byte register see STB for its bit configuration are allowed to generate an SRQ A in any Service Request Enable register bit position enables the corresponding Status Byte register bit and all such enabled bits then are logically ORed to cause Bit 6 of the Status Byte register to be set When SRE is cleared by programming it with 0 the power supply cannot generate an SRQ to the controller Command Syntax SRE lt NRI gt Parameters 0 to 255 Default Value 0 Example SRE 32 Query Syntax SRE Returned Parameters
82. lt NRI gt Register decimal value Related Commands ESE ESR 4 14 STB Meaning and Type Status Byte Device Status Description This query reads the Status Byte register which contains the status summary bits Reading the Status Byte register does not clear it It is cleared at power on or by CLS Bit Configuration of Status Byte Register Table Bit Position 7 6 5 4 3 2 1 0 Bit Name NU SRQ SE MSA QD NU NU NU Bit Weight 128 64 32 16 8 4 2 1 MSA Message available NU Not used QD Questionable date enable register SE Standard event enable register SRQ Service request Query Syntax STB Returned Parameters lt NR1 gt Register decimal value Related Commands None TRG Meaning and Type Trigger Device Trigger Description This command generates a trigger to power supply Command Syntax TRG Parameters None Query Syntax None Related Commands ABOR CURR TRIG TRIG IMM VOLT TRIG TST Meaning and Type Test Device Test Description This query causes the power supply to do a self test and report any errors Query Syntax TST Returned Parameters lt CRD gt A string representing a 4 byte Hexadecimal value with a amp H header Each bit represents self test result for the corresponding channel 0 Indicates power supply passed self test 1 Nonzero indicates an error Related Commands VRF 4 15 Bit configuration of TST query returned value cor
83. mand not in the list 60 GPIB error try to send a command to a channel already in a parallel group 70 GPIB error command error during parallel operation 4 46 FIVE CALIBRATION INTRODUCTION AN WARNING Exercise caution when using and calibrating a power supply High energy levels can be stored at the output voltage terminals on a power supply in normal operation In addition potentially lethal voltages exist in the power circuit and on the output and sense connectors of a power supply with a rated output greater than 40V Filter capacitors store potentially dangerous energy for some time after power is removed This procedure describes calibration for the AMREL Programmable DC Power Supply The supply is calibrated remote control only The following information provides calibration procedures in remote mode NO hardware adjustment is necessary since all calibration is accomplished by software To maintain power supply s precision output calibration should be performed at least annually The four parameters that need be calibrated are output voltage output current readback voltage and readback current After all the power supply parameters are calibrated the supply returns to normal operating condition If there are any errors in the calibration cycle the power and recalibrate All constants are saved in a non volatile EEPROM CALIBRATION SERVICE ENVIRONMENT AND PRECAUTIONS Follow established antistatic proc
84. mmand Syntax Parameter Default Value Example Query Syntax Returned Parameter Related Commands SYSTem CHANnel MAXimum lt NR1 gt lt NR1 gt 1 31 maximum channel numbers 1 SYST CHAN MAX 8 SYSTem CHANnel MAXimum lt NR1 gt represented maximum channel numbers TST lt Note gt After setting a new value for this command user must power cycle the power supply Otherwise the new value does not affect the maximum number of slave channels permitted to connect to the master controller SYST CONS BAUD This command sets and queries the RS 232 interface baud rate setting Command Syntax Parameters Example Query syntax Returned Parameters Related Commands SYST CONS EOS SYSTem CONSol BAUD lt baudrate gt lt baudrate gt RS 232 baud rate value SYST CONS BAUD 115200 SYSTem CONSol BAUD lt NR1 gt Represented the baud rate value None This command sets and queries the RS 232 interface EOS mode Command Syntax Parameters Example Query syntax Returned Parameters Related Commands SYST DEF OUTP SYSTem CONSol EOS lt NR1 gt lt NRI gt 0 None 1 CR 2 LF 3 CR LF SYST CONS EOS I SYSTem CONSol EOS lt NRI gt Represents EOS mode SYST EOS This command sets and queries the power on output status Command Syntax Parameters Example Query syntax Returned Parameters Related Commands SYSTem DEFault OUTPut lt NR1 gt lt NRI gt 0 1 0 Power ON output status always OF
85. n only be used in parallel operation It enables or disables parallel current sharing Note When enabling parallel current sharing the down programming circuit of each channel is disabled The output voltage will drop down slower when turning the output off And the output will have longer transition time when changing voltage levels Command Syntax Parameters Default Suffix Examples Query Syntax Returned Parameters Related Commands PAR VOLT PARallel STATe lt group gt lt bool gt lt group gt 8 group number lt bool gt ON 0 Enable parallel operation OFF 1 Disable parallel operation None PAR STAT 1 ON PARallel STATe lt group gt o I PAR GRO PAR OUTP TRIG This command can only be used in parallel operation It sets voltage level value for each channel of a specified parallel group Command Syntax Parameters Default Suffix Examples Query Syntax Returned Parameters Related Commands PARallel VOLTage lt group gt lt NRf gt lt group gt 1 8 group number lt NRf gt voltage level for each channel V PAR VOLT 12 0 PARallel VOLTage lt group gt lt NRf gt voltage level PAR GRO 4 31 STATUS SUBSYSTEM This subsystem programs the power supply status registers The power supply has three groups of status registers Operation Questionable and Standard Event The Standard Event group is programmed with Common commands STAT OPER This query returns the valu
86. nel gt lt NR1 gt CALibrate OFFSet lt channel gt lt NR1 gt lt NRf gt calibration offset constant value CAL CURR SAV CAL VOLT SAV SAV This command sets calibration password Command Syntax Parameters Example Query syntax Related commands CALibrate PASSword lt channel gt lt CRD1 gt lt CRD2 gt lt channel gt 1 31 channel number lt CRD1 gt character string for old calibration password lt CRD2 gt character string for new password CAL PASS 1 12345 sets calibration password as 12345 CAL PASS 1 12345 54321 sets new calibration password as 54321 None CAL STAT Note The power supply unit default password is empty no password If this command has only one character string field it is used to set the first password the old password is empty no old password If the old password exists the first character string field must match the old password Otherwise an error message is generated CAL SAV This command can only be used in the calibration mode It saves any new calibration constants after a current or voltage calibration procedure has been completed in nonvolatile memory Command Syntax Parameters Examples Query Syntax Related Commands CALibrate SA Ve lt channel gt lt channel gt 1 31 channel number CAL SAV 1 None CAL CURR CAL VOLT CAL STAT 4 18 CAL SLOP This command resets or queries the power supply s calibration slope consta
87. ng any connections on the rear panel terminal block 2 8 Configure the unit for remote sensing by first disconnecting the jumper wires between the sense and load terminals Keep in mind that sense and load leads should be as short as possible Additionally the sense leads resistance should be no greater than 0 5 ohm lead and the voltage drop over the load leads should be no greater than 2 0V lead USE THE LARGEST GAUGE POWER SUPPLY AND SHORTEST LENGTH POSSIBLE Sense LOAD Output Output Sense SINGLE LOAD WITH REMOTE SENSING PARALLEL CONNECTION OPERATION Power supplies equipped with MOSFET and Down programming circuit should not be used in series or parallel with each other unless a master slave interconnection is employed and their MOSFET interlock The SPS can be paralleled if the MOSFET and Down programming circuit are disabled by configuring dip SW1 located at rear panel for parallel operation When operating power supplies in parallel a situation can occur where a power supply in the configuration shuts down and the voltage from the other paralleled regulators will feed back into it To prevent damages to the power supply connect a high voltage rated blocking diode in series with the Load The break down voltage and current rating for the blocking diode should be at least two times the maximum rated values of the power supply Please see the diagram below POWER SUPPLY LOAD POWER SUPPLY
88. nnel gt lt NR1 gt lt NRf gt current level at the point specified by the point number LIST CURR STAT This command enables or disables the output current list operation state Command Syntax Parameters Examples Query Syntax Returned Parameters Related Commands LIST CURR STEP LIST CURRent STATe lt channel gt lt bool gt lt channel gt 1 31 channel number lt bool gt 0 1 OFF ON LIST CURR STAT 1 ON LIST CURR STATE 2 OFF LIST CURR STATe lt channel gt 0 1 LIST CURR STEP This command specifies how current list sequencing occurs in response to enabling current list state LIST CURR STAT If default step NONE or AUTO is sent enabling list operation state causes the current list to sequence through all its points The time that a list remains at each point is as specified in the dwell list As soon as the dwell interval expires the list moves to the next point If ONCE is sent after enabling list operation state a single trigger advances a list only one point After the specified dwell interval the list remains at that point until the next trigger occurs In either mode triggers that occur during a dwell interval are ignored Command Syntax Parameters RST Value Examples Query Syntax Returned Parameters Related Commands LIST CURRent STEP lt channel gt lt CRD gt lt channel gt 1 31 channel number lt CRD gt NONE AUTO ONCE list step NONE LIST CURR STEP 1 ONCE LIST CU
89. nnel number lt point gt 1 20 point number lt NRf gt minimum to maximum voltage value of the channel V LIST VOLT 1 1 2 5 LIST VOLTage lt channel gt lt NR1 gt lt NRf gt voltage level at the point specified by the point number LIST VOLT STA This command enables or disables the output voltage list operation state Command Syntax Parameters Examples Query Syntax Returned Parameters Related Commands LIST VOLTage STATe lt channel gt lt bool gt lt channel gt 1 31 channel number lt bool gt 0 1 OFF ON LIST VOLT STAT 1 ON LIST VOLT STATE 2 OFF LIST VOLTage STATe lt channel gt 0 1 LIST VOLT STEP 4 25 LIST VOLT STEP This command specifies how voltage list sequencing occurs in response to enabling voltage list state LIST VOLT STAT If default step NONE or AUTO is sent enabling list operation state causes the voltage list to sequence through all its points The time that a list remains at each point is as specified in the dwell list As soon as the dwell interval expires the list moves to the next point If ONCE is sent after enabling list operation state a single trigger advances a list only one point After the specified dwell interval the list remains at that point until the next trigger occurs In either mode triggers that occur during a dwell interval are ignored Command Syntax LIST VOLTage STEP lt channel gt lt CRD gt Parameters lt channel gt 1 31 chann
90. nstant Voltage CV Constant Current CC Auto Crossover Outputs 1 Output Voltage 300VDC MAX Output Current 4ADC MAX Output Power 1 200 Watts MAX Programming Resolution 100mV 1mA Programming Accuracy Voltage 0 2 10 mV Current 0 3 10mA Readback Accuracy Voltage 0 2 20mV Current 0 3 20mA Line Regulation CV 0 01 Vm 2mvV CC 0 01 Im 2mA Load Regulation CV 0 02 Vm 5mV CC 0 03 Vm 5mV Efficiency 80 PARD Ripple amp Noise CV 25mVrms CV 200mVpp Transient Response 1 3mS for 50 to 100 load change within 1 of nominal voltage Remote Sense Voltage drop lt 5VDC output line Drift over 8 hours amp 30 minutes warm up period 0 01 10mV 1 13 Operating Temperature ambient 0 C to 50 C Storage Temperature 40 C to 70 C Temperature Coefficient 30 minutes warm up period 100ppm C for CV 300ppm C for CC Humidity 0 C to 90 C RH non condensing Output Isolation 600VDC Front Panel Voltage 10 turn Knob Current 10 turn Knob ON OFF line circuit breaker Display LED Module 37 digits CV CC OVP LED status indicators SPS 400 3 AC Line Input 120VAC 10 240VAC 10 Line Frequency 50 60Hz Topology Switch mode Constant Voltage CV Constant Current CC Auto Crossover Outputs 1 Output Voltage 400VDC MAX Output Current 3ADC MAX Output Power 1 200 Watts MAX Programming Resol
91. nt value These constants are not stored in nonvolatile memory until saved with the CAL CURR SAV or CAL VOLT SAV and SAV commands Command Syntax CALibrate SLOPe lt channel gt lt NR1 gt lt NRf gt SYSTem SLOPe lt channel gt lt NR1 gt lt NRf gt Parameters lt channel gt 1 31 channel number lt NR1 gt 0 4 calibration mode 0 OVP slope I Voltage output 2 Current output 3 Voltage read back 4 Current read back Examples lt NRf gt slope value obtained from the query SYST SLOPE I 1 0 0665278 Query Syntax CAL SLOP I 1 0 0665278 SYST SLOPE lt channel gt lt NR1 gt Return Parameter CAL SLOP lt channel gt lt NR1 gt Related Commands lt NRf gt calibration slope constant value CAL CURR SAV CAL VOLT SAV SAV CAL STAT This command enables and disables the calibration mode The calibration mode must be enabled before the power supply will accept any other calibration commands Whenever the calibration mode is changed from enabled to disabled any new calibration constants are lost unless they have been stored with CAL SAVE Command Syntax CALibrate STATe lt channel gt lt bool gt lt password gt Parameters lt channel gt 1 31 channel number lt bool gt 0 OFF I ON lt password gt Calibration password RST Value OFF Examples CAL STAT 1 ON CAL STAT 1 OFF Query Syntax CALibrate STATe lt channel gt Returned Parameters 0 1 Related Commands CAL SAV Note If the calibration password
92. nterclockwise until the output disables LED will display approximately 0Volts 5 Turn the unit off 6 Turn the voltage control knob to minimum 7 Turn the unit back on and increase the voltage to check that the power supply shuts the output off at the desired trip voltage lt NOTE gt For remote OVP operation you must turn the OVP ADJUST hole located on the front panel above the voltage amp current knobs to minimum counterclockwise in order to operate correctly Remember you must adjust the OVP Adjust trimer back to maximum clockwise when using local OVP operation TTL SHUTDOWN OPTIONAL For applications that require using remote ON OFF control to the output the power supply can use a TTL signal 5V or Short to remotely disable enable the output The following are the output conditions OVdc or Open between Pin 13 to Pin 14 equal Output ON 5Vdc or Short between Pin 13 to Pin 14 gt equal Output OFF 3 2 PROGRAMMING WITH EXTERNAL VOLTAGE SOURCES lt NOTE gt When external source is physically and or electrically connected to power supply the front panel control knobs are disabled They also become disabled when the remote programming scale is set to 0 to 10Vde ranges The output voltage can be programmed with either a 0 to 5Vde or 0 to 10Vde external voltage source To program the output voltage SW 1 4 must be set to OFF position default for 0 to 5Vdc sources or set to ON position fo
93. of purchase When return the product to American Reliance Inc l Package the unit safely preferably using the original box and packing materials Please ensure that your product is shipped fully insured in the original packaging or equivalent THIS WARRANTY WILL NOT APPLY WHERE THE PRODUCT IS DAMAGED DUE TO IMPROPER PACKAGING 2 Include the following information The RMA supplied by American Reliance Inc clearly marked on the outside of the box A return address where the unit can be shipped Post office boxes are not acceptable A contact person telephone email where you can be reached during work hours A brief description of the problem 0000 Ship the unit prepaid to the address provided by AMREL customer service representative If you are returning a product from outside of the United States In addition to the above you must include return freight funds if you instrument is out of warranty and are fully responsible for all documents duties tariff and deposits 2 2 PACKAGING FOR SHIPPING OR STORAGE Follow these instructions to prepare the instrument for shipping or storage T When returning the unit or sending it to the service center attach a tag to the unit stating its model number available at the front panel label its serial number available at the rear panel label Give the date of purchase and an invoice number if you have it as well as a brief description of the problem For storage or shipping
94. ommand index table and the ERR indicates the actual error code if no error occurs this field is 0 Please refer to Appendix A for error code Query Syntax Parameters Returned Parameters Example SYST GPIB SYSTem ERRor None lt CRD gt CH CMD ERR SYST ERR This command sets the command syntax mode to either 488 1 or SCPI Command Syntax Parameter Query Syntax Returned Parameter Example SYST GPIB EOS SYST GPIB lt value gt SCPI 4881 SYST GPIB 0 SCPI mode 1 488 1 mode SYST GPIB 4881 This command sets and queries the GPIB interface EOS mode Command Syntax Parameters Example Query syntax Returned Parameters Related Commands SYSTem GPIB EOS lt NR1 gt lt NRI gt 0 None 1 CR 2 LF 3 CR LF SYST GPIB EOS 1 SYSTem GPIB EOS lt NRI gt Represents EOS mode SYST EOS 4 35 SYST IDLE This command sets and queries Master or Slave function of the SPS unit Command Syntax Parameters Example Default value Query syntax Returned Parameters Related Commands SYST NET ADDR SYST IDLE lt NR1 gt lt NR1 gt 0 The SPS unit can be used as Master 1 The SPS unit can only be used as Slave SYST IDLE I 0 SYST IDLE lt NRI gt Represents Master or Slave mode None This command sets and queries the Ethernet IP address Command Syntax Parameters Example Query syntax Returned Parameters Related Commands SYST NET DHCP SYSTem NET ADDRess lt CRD1 gt lt
95. on ensure that the load including connections has no live parts which are accessible Also ensure that the insulation rating of the load wiring and circuitry is greater than or equal to the maximum or combined output voltage of the power supply CAUTION Do not connect power supplies from different manufactures in parallel or in series You can operate power supplies of the SAME MODEL with outputs in series or in parallel to obtain increased load voltage or increased current Split supply operation gives you two positive outputs see figure 3 4 and 3 5 or a positive and a negative output see figure 3 2 and 3 3 3 6 CONFIGURING MULTIPLE SUPPLIES FOR SERIES OPERATION CAUTION Do not use remote sensing during series operation CAUTION The maximum allowable sum of the output voltages is 600 Vde Use series operation to obtain a single higher voltage output using two or more supplies Connect the negative output terminal of one supply to the positive output terminal f the next supply See Figure 3 2 Total voltage available is the sum of the maximum voltage of each supply The maximum allowable current for a series string of power supplies is the output current of a single supply in the sting POWER SUPPLY 1 Sense USE THE LARGEST GAUGE AND SHORTEST LENGTH POSSIBLE Output Output J Input POWER SUPPLY 2 Sense Output Output Sense FIGURE 3 2 SERIES OPERATION OF MULTIPLE
96. onfigure all equipments to accept DHCP Otherwise just click No to ignore it 3 The following panel then shows up for users to choose a unit to run Users can select a unit from the instrument list and double click the row The unit configuration panel then shows up for users to simply configure the unit i Model ARM AMREL PD MC1 0 CF 92 1CT FV 2 52b Clear Scaned Equipments 4 4 4 Most of the information in the following device configuration panel is read from the instrument and displayed to users It s not for users to make changes However users still can operate on the following settings Beep on off Output when power on VSET ISET and OUT state by just configuring the corresponding areas showing in the following panel Device 1 Config Model Serial Number System Version JAMREL PD MC1 0 CF 92 1CT Fv 2 52b 000000000000 PEZ 52b IP address Net Mask Gateway IP TCP EQS fi 92 168 1 30 255 255 255 0 fi 92 168 1 1 CA LF Ej GPIB address GPIB EOS RS232 Baud RS232 EOS ER JCR LF sj 3600 JCR LF aj Alias name LCD backlight Beeper Ouput when power on PD MC1 Jon or mj on ott J on 01 VEST EE GE EEE EEE F EE TETTE EEE EEE Model Version Serial Hi MaxVolt MaxCunr VWSET ISET 20v 5 0 Mao 812777 20 000 5 000 20 00 5 00 i fi es Cy RLY PARA OT OCP OVP UVP UNA Refresh Reboot Device 3 Close the Program 1 Click Close IO 2 Click close
97. or fire hazard AVOID ACCESS TO LIVE CIRCUITS Operating personnel must not remove the instrument cover Component replacement and internal adjustments must be made by qualified service personnel Do not replace components with power cable connected Under certain conditions dangerous voltage may exits even with the power cable removed To avoid injuries always disconnect the power discharge circuits and remove external voltage sources before touching components DO NOT TROUBLESHOOT ALONE Do not attempt internal service or adjustment unless another person capable of rendering first aid and resuscitation is present Any adjustment maintenance and repair of this instrument while it is opened and under voltage should be avoided as much as possible When this is unavoidable such adjustment maintenance and repair should be carried out only by a skilled person who are aware of the hazard involved should carry out the adjustment maintenance and repair DO NOT SUBSTITUTE PARTS OR MODIFY THE INSTRUMENT Because of the danger of introducing additional hazards do not install substitute parts or perform an unauthorized modification to the instrument Return the instrument to an American Reliance Service Department for service and repair to ensure that safety features are maintained SAFETY SYMBOLS WARNING The WARNING sign denotes a hazard It calls attention to a procedure practice or the like which if not correctly performed or adhered to c
98. ould result in personal injury Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met CAUTION The CAUTION sign denotes a hazard It calls attention to an operating procedure or the like which if not correctly performed or adhered to could result in damage to or destruction of part or all of the products Do not proceed beyond a CAUTION sign until the indicated conditions are fully understood and met SAFETY SYMBOL DEFINITIONS Symbol Description Direct current Alternating current Earth ground terminal Terminal for Neutral conductor on permanently installed equipment Terminal for Line conductor on permanently installed equipment NY Protective earth ground terminal Standby supply Units with this symbol are not completely disconnect from ac mains either disconnect the power cord or have a qualified electrician install an external switch Caution risk of electric shock AN Caution hot surface A Caution refer to accompanying documents TABLE OF CONTENTS ONE TWO FEATURES AND SPECIFICATION INTRODUCTION FEATURES AND OPTIONS FRONT PANEL CONTROLS FRONT PANEL FEATURES SETTING VOLTAGE VOUT amp OVER VOLTAGE OV SETTING CURRENT ISET amp OVER CURRENT OC FINE TUNE OUTPUT ON OFF REMOTE INDICATOR REAR PANEL CONNECTORS amp SWITCHS REAR PANEL FEATURES GPIB ADDRESS SWITCH CHANNEL ADDRESS SWITCH REMOTE SENSE REMOTE SENSE CONFI
99. p consists of an Event register and an Enable register that are programmed by COMMON commands The Standard Event register latches events relating to interface communication status It is a read only register The Standard Event Enable register functions similarly to the enable registers of the Questionable Status Enable register The common ESE command programs specific bits in the Standard Event Status Enable register ESR reads the Standard Event Status Event register Reading the register clears it Status byte and Service Request Enable registers Status Byte register summarizes the information from all other status groups The register can be read by STB Whenever the power supply requests service it sets the SRQ interrupt line true and latches RQS into bit 6 of the Status Byte register When the controller services the interrupt RQS is cleared inside the register and returned in bit position 6 of the response The remaining bits of the Status Byte register are not disturbed No bits of the Status Byte register are cleared by reading it Service Request Enable register determines which bits from the Status Byte register are allowed to generate SRQ using SRE common command Users can determine the reason for an SRQ by the following actions e Use the STB query to determine which summary bits are active e Read the corresponding Event register for each summary bit to determine which events caused the summary
100. ply operation is equal to the rated output of the supplies Example 10A for two 120V 10A models See Figure 3 5 POWER SUPPLY 1 Sense USE THE LARGEST GAUGE AND SHORTEST LENGTH POSSIBLE Output Output LOAD Sense POWER SUPPLY 2 Sense Output Output Sense FIGURE 3 5 SPLIT SUPPLY OPERATION OF MULTIPLE SUPPLIES POSITIVE NEGATIVE SUPPLY 3 10 FOUR REMOTE OPERATION INTRODUCTION AMREL SPS series Power Supplies have GPIB RS 232 and Ethernet OPTIONAL interfaces for users to remotely operate GPIB CAPABILITIES OF THE POWER SUPPLY All Power Supply functions except for setting the GPIB address are programmable over the GPIB GPIB Address The power supply operates from a GPIB address that is set from the rear panel switch To set the GPIB address please refer to the User s manual RS 232 CAPABILITIES OF THE POWER SUPPLY The power supply provides an RS 232 programming interface All SCPI commands are available through RS 232 programming When the RS 232 interface is selected the GPIB interface and Ethernet interface should not be operated NOTE The RS 232 baud rate settings in your program must match the settings stored in non volatile memory If you need to change the baud rate setting using command SYST CONS BAUD lt value gt Please refer to the command description for details of using this command RS 232 Flow Control The RS 232 interface flow control options a
101. program icon x to exit the program Ethernet returned data string format For non query commands OK lt EOI character gt For queries OK lt EOI character gt returned value lt EOI character gt OK lt EOI character gt 4 5 PROGRAMMING COMMAND SET FOR SPS SERIES POWER SUPPLY This section gives the syntax and parameters for all the programming commands used by AMREL SPS series power supply including the terms symbols and syntactical structures used here and gives an introduction to programming You should also be familiar with front panel operation in order to understand how the power supply functions The programming examples are simple applications of SCPI commands Because the SCPI syntax remains the same for all programming languages the examples given for each command are generic Syntax Forms Parameters Models Related Commands Order of Presentation Syntax definitions use the long form but only short form headers or keywords appear in the examples Use the long form to help make your program self documenting Most commands require a parameter and all queries will return a parameter The range for a parameter may vary according to the model of power supply When this is the case refer to the Specifications table If a command only applies to specific models those models are listed in the lt Model gt Only entry If there is no lt Model gt Only entry the command applies to all models
102. r 0 to 10Vdc sources JP3 I O Connector Configuration SW1 SETTINGS 0 5Vdc SW1 4 OFF 0 10Vdc SW1 4 ON The external voltage source is connected between pins 4 and 5 To control the output of the supply vary the external voltage source The source is directly proportional to the output thus a change in the external voltage of 0 to 5Vde or 0 to 10Vdc will cause a proportional change from 0 100 of the rated output The output current limit can be programmed with a 0 to 5Vdc or 0 to 10Vde external source The output voltage must also be set with a separate voltage source The current control will not function unless there is another source attached to the voltage control pins Selection of the external voltage scale is done using switch SW1 SW1 SETTINGS 0 5Vdc SW1 3 OFF 0 10Vdc SW1 3 ON The external voltage source is connected between pins 6 and 7 To control the current limit vary the external voltage source Varying the source from 0 100 of the rated maximum will cause a proportional change of 0 100 of current limit NOTE An additional source is required and connected between pin 1 and 2 to externally control the Over Voltage Protection OVP setting when ever external voltage and current control is required The OVP is controlled by Varying the source from 0 100 of the rated maximum voltage will cause a proportional change of 0 100 of OVP limit 3 3 REMOTE MONITORING AND STATUS I
103. re default set fixed for the power supply as following Parity NONE Data bit 8 Stop bit 1 Start bit 1 XON XOFF OFF RTS CTS OFF Baud Rate You can select one of the following baud rates from the front panel which is stored in non volatile memory 2400 4800 9600 19200 38400 57600 115200 The default baud rate is set to 9600 RS 232 Returned String Format For non query commands OK LF CR For queries OK LF CR returned value LF CR OK LF CR Note Using RS 232 interface to get the voltage or current read back value a minimum 50 milliseconds delay must be added to the application program 4 1 RS 232 Troubleshooting If you are having trouble communicating over the RS 232 interface check the following e The computer and the SPS unit must be configured for the same baud rate parity number of data bits and flow control options Note that the SPS unit is configured for 1 start bit and I stop bit these values are fixed e The correct interface cables or adaptors must be used e The interface cable must be connected to the correct serial port on your computer COM1 COM2 etc RS 232 serial connection D SUB CONNECTOR DB 9 FEMALE PIN 1 NO CONNECTION PING RXD PIN TXD PIN 4s DTR PINS se GND PIN 6 NO CONNECTION PIN Foe te RTS PIN 8 NO CONNECTION PIN 9 NO CONNECTION lt NOTE gt The D SUB Female Connector TXD and RXD pins are internally swapped The
104. refore interface cable between power supply and computer controller should not swap pins such as a Null Modem cable ETHERNET CAPABILITIES OF THE POWER SUPPLY Optional for 00E models The power supply provides an Ethernet programming interface as optional All SCPI commands are also available through Ethernet programming When the Ethernet interface is selected the GPIB interface and RS 232 interface should not be operated Obtain Network Information To connect the power supply to the network you only need a network cable with RJ 45 connector No transceiver is necessary However you need to obtain the following information from the power supply unit and your network administrator 1 Power supply Ethernet MAC Address It s a twelve digits string that unequally identifies the power supply unit It can be obtained from the control board 2 Network information 1 DHCP server enabled Yes or no 2 Power supply IP address 3 Gateway IP address 4 Subnet mask 4 2 Setting the Power Supply Ethernet Parameters You need to set the power supply Ethernet IP address first The power supply IP address uniquely identifies the power supply to other devices on the network and is required for the power supply to communicate over the network 1 Ethernet Network settings DHCP supported The purpose of a DHCP Dynamic Host Configuration Protocol server is to issue an IP address to a network device that requests an add
105. responding to channel number table Bit Position 7 6 5 4 3 2 1 0 Channel 8 7 6 5 4 3 2 1 Bit Position 15 14 13 12 11 10 9 8 Channel 16 15 14 13 12 11 10 9 Bit Position 23 22 21 20 19 18 17 16 Channel 24 23 22 21 20 19 18 17 Bit Position 31 30 29 28 27 26 23 24 Channel NU 31 30 29 28 27 26 25 lt Note gt 1 Example If the returned string is amp H7FFFFFFE it means only channel I was connected and passed the self test by converting the Hexadecimal value 7FFFFFFE to binary value which is 0111 1111 1111 1111 1111 1111 1111 1110 and comparing the bit configuration with the above table to get the channel number lt Note gt 2 Example If the returned value is a series of numbers such as 26 48 37 46 46 46 46 46 46 45 it represents ASCII code in Hexadecimal format same as amp H7FFFFFFE It means only channel 1 was connected and passed the self test DESCRIPTION OF SUBSYSTEM COMMANDS ABOR This command cancels any trigger actions presently in process Pending trigger levels are reset equal to their corresponding immediate values ABOR also cancels any programmed lists that may be in process ABOR also resets the WTG bit in the Operation Condition Status register ABOR is executed at power turn on and upon execution of RST Command Syntax ABORt Parameters None Examples ABOR Query Syntax None Related Commands RST TRG TRIG 4 16 CALIBRATION S
106. ress The IP address enables the device to communicate with the network This is similar to personal computer Plug amp Play concept The following procedure presumes that your power supply has the Ethernet option and you have connected the power supply to your network If your network supports DHCP server do the following 1 Power on the power supply 2 Set IP address as 0 0 0 0 using command SYST NET ADDR 0 0 0 0 3 Set Net mask to 0 0 0 0 using command SYST NET SUBN 0 0 0 0 4 Set network gateway as 0 0 0 0 using command SYST NET GAT 0 0 0 0 Note If the DHCP server assign a dynamic IP address then the value of the power supply IP address maybe different each time you power on the power supply However if you intend to remotely control the power supply a static IP address is more convenient as the power supply IP address does not change making it easier for remote devices to access power supply 2 Ethernet Network settings DHCP not supported If your network does not support DHCP server you must enter the Ethernet settings manually which you obtained from your network administrator The following procedure presumes that your power supply has the Ethernet option and you have connected the power supply to your network If your network does not support DHCP server do the following 1 Power on the power supply 2 Set IP address as value using command SYST NET ADDR lt v
107. s instrument assists in the development and testing of new products as well as being a recommended standard instrument for automatic test systems The wide range of output selection combined with excellent load line regulation provides an essential instrument to a lab environment This instrument provides low noise precisely regulated variable DC output at 1200W 115Vac 230Vac or 1500W 230Vac 208Vac of output power Over Voltage Protection OV and Over Current Protection OC are standard Front panel controls and indicators are extensive with dual encoders front panel on off control voltage setting current setting OV and OC preview as well as led indicators for fault conditions and CV CC operating mode For rack and stack applications the front and side ventilation provides increased heat dissipation to handle severe ambient conditions To accommodate system applications an output port on the rear panel provides a TTL fault output signal and remote inhibit functionality for system level interlock and fault indication It comes with Standard Commands for Programmable Instrument SCPI commands Remote monitoring of output voltage and currents is a standard features Power supply can be used either on your bench or in a standard 19 in 483 mm rack The power supply occupies 1 75 in 1 U of vertical rack space Designed for continuous use in standalone or systems applications this power supply is typically used to power DC equipment control circu
108. s the output and the OVP is inadvertently triggered or the output is programmed below the battery voltage the power supply will continuously sink a large current from the battery This could damage the supply To avoid this disable the circuit by configuring the DIP SW1 for parallel operation or insert a reverse blocking diode in series with the output of the supply Connect the diode cathode to the battery terminal and the diode anode to the supply output terminal The diode may require a heat sink If the OVP trips you must remove the external current source in order to reset the internal MOSFET as part of clearing the OVP circuit or disabled by configuring dip SW1 for parallel operation 2 10 Figure 2 4 and 2 5 show recommended load and sensing connections for multiple loads USE THE LARGEST GAUGE POWER SUPPLY AND SHORTEST LENGTH POSSIBLE Sense Output Output Sense USE THE LARGEST AND SHORTEST LENGTH POSSIBLE NEGATIVE DISTRIBUTION TERMINAL LOAD 2 USE THE LARGEST AND SHORTEST LENGTH POSSIBLE Input FIGURE 2 5 MULTIPLE LOADS WITH REMOTE SENSING 2 11 THREE LOCAL OPERATION INTRODUCTION Once you have installed the power supply and have connected both the AC input power and the load as discussed in the previous section Installation the power supply is ready to operate in local control mode STANDARD OPERATION This power supply has two basic operating modes Constant Vol
109. section Once the address and channels are set all units must be connected together as shown in Figure 3 1 below This is done by using RS485 cables attached in a daisy type or star type configuration Each unit is equipped with two standard RS485 connectors to accommodate for the configuration necessary to operate the system RS485 hardware limitation Maximum length of cable 30 foot per cable 300feet total Connector type RJ45 Cable Type 8 PIN CAT 5 Ethernet Cable lt NOTE gt Make sure to adjust the dip switch Channel Address Switch to the right channel when using multiple channel configuration 3 4 SCPI GPIB BUS SPS Master Controller SPS Slave Unit 1 SPS Slave Unit 2 st ool RS485 BUS SPS Slave Unit 3 4 A SPS Slave Unit 31 FIGURE 3 1 SYSTEM CONFIGURATION DRAWING MASTER SLAVE INSTALLATION Each SPS Power supply with the GPIB SCPI option is equipped with RJ45 sockets for connecting output channels to the Master unit The Master unit is internally tied to the slave LAN 00E model only SPS MASTER UNIT POWER SUPPLY 1 fiddle sat Ethernet interface connector only LAN p bora Master Controller Sockets Internally tied to slave Power Supply 2 Power Supply 3 Power Supply 4 sockets below EER le mE mE Up to a maximum of 31 outputs can be configured as shown above And each power supply output must be assigned an output number as described in the previous section NOTE
110. t LE Vel IMMediate lt channel gt MAX CURRent LE Vel IMMediate lt channel gt MIN Returned Parameters lt NRf gt CURR returns the present programmed current level CURR MAX and CURR MIN return the maximum and minimum programmable current levels Related Commands SAV RST CURR TRIG This command programs the pending current trigger level of the power supply The pending current trigger level is a stored value that is transferred to the output terminals when a trigger occurs A pending triggered level is unaffected by subsequent CURR commands and remains in effect until the trigger subsystem receives a trigger or an ABORt command is given If there is no pending trigger level then the query form returns the immediate current limit level Command Syntax CURRent LEVel TRIGgered lt channel gt lt NRf gt Parameters lt channel gt 1 31 channel number lt NRf gt minimum to maximum current value of the channel Default Suffix A RST Value 1 0 Examples CURR TRIG 1 12 000 CURR LEV TRIG 1 1 2 Query Syntax CURRent LEVel TRIGgered lt channel gt CURRent LEVel TRIGgered lt channel gt MAX CURRent LEVel TRIGgered lt channel gt MIN Returned Parameters lt NRf gt CURR TRIG returns the presently programmed triggered level If no triggered level is programmed the CURR level is returned CURR TRIG MAX and CURR TRIG MIN return the maximum and minimum programmable triggered current levels Related Commands ABOR C
111. t Status register Pending operations are complete when e All commands sent before OPC have been executed This includes overlapped commands Most commands are sequential and are completed before the next command is executed Overlapped commands are executed in parallel with other commands Commands that affect output voltage current or state relays and trigger actions are overlapped with subsequent commands sent to the power supply The OPC command provides notification that all overlapped commands have been completed e Any change in the output level caused by previous commands has been completed completion of settling time relay bounce etc e All triggered actions are completed OPC does not prevent processing of subsequent commands but Bit 0 will not be set until all pending operations are completed Command Syntax OPC Parameters None Related Commands OPC ESE 4 12 OPC Meaning and Type Operation Complete Device Status Description This query causes the interface to place an ASCII 1 in the Output Queue when all pending operations are completed Pending operations are as defined for the OPC command Unlike OPC OPC prevents processing of all subsequent commands OPC is intended to be used at the end of a command line so that the application program can then monitor the bus for data until it receives the 1 from the power supply Output Queue CAUTION Do not follow OPC with TRG or GPIB bus triggers Suc
112. t Value of Flashing Digit ORANGE OC Setting Rotate Right Increment Value of Flashing Digit ORANGE OC Setting 1 3 FINE TUNE The Encoders will adjust the least significant digit of the Voltage and Current values on the fly S r oUi I OUTPUT ON OFF By pressing the ON OFF button the SPS output can be enabled or disabled om 4 TOOT SET REMOTE INDICATOR The two LEDs will flash GREEN when the SPS is in Remote Programming Mode 1 Press the ON OFF button to bring the SPS to local mode when the remote interface is disengaged 1 4 REAR PANEL CONNECTORS p5 6 D2 p 10 v tv Ke J pe J DR y anor ESL FI ic REAR PANEL FEATURES 1 10 11 12 11 REAR PANEL OF SPS V POWER SUPPLY Fan Out Air Vent Positive Output Negative Output RS232 GPIB GPIB Address Ethernet Interface LAN USB AC Input Chassis GND Remote Inhibit Port Fault Port Sense Connections Cooling Fan Output Vent for SPS Positive Output Terminal Screw M6X12 Negative Output Terminal Screw M6X12 9 pin D sub male connector for RS232 Interface Standard IEEE 488 GPIB Interface Connector Dip switch to configure the G
113. t breaker Display LED Module 37 digits CV CC OVP LED status indicators SPS 200 6 AC Line Input 120VAC 10 240VAC 10 Line Frequency 50 60Hz Topology Switch mode Constant Voltage CV Constant Current CC Auto Crossover Outputs 1 Output Voltage 200VDC MAX Output Current 6ADC MAX Output Power 1 200 Watts MAX Programming Resolution 50mV 1 5mA Programming Accuracy Voltage 0 2 10 mV Current 0 3 10mA SPS 300 4 Readback Accuracy Voltage 0 2 20mV Current 0 3 20mA Line Regulation CV 0 01 Vm 2mvV CC 0 01 Im 2mA Load Regulation CV 0 02 Vm 5mV CC 0 03 Vm 5mV Efficiency 80 PARD Ripple amp Noise CV 20mVrms CV 150mVpp Transient Response 1 3mS for 50 to 100 load change within 100 of nominal voltage Remote Sense Voltage drop lt 5VDC output line Drift over 8 hours amp 30 minutes warm up period 0 01 10mV Operating Temperature ambient 0 C to 50 C Storage Temperature 40 C to 70 C Temperature Coefficient 30 minutes warm up period 100ppm C for CV 300ppm C for CC Humidity 0 C to 90 C RH non condensing Output Isolation 600VDC Front Panel Voltage 10 turn Knob Current 10 turn Knob ON OFF line circuit breaker Display LED Module 37 digits CV CC OVP LED status indicators AC Line Input 120VAC 10 240VAC 10 Line Frequency 50 60Hz Topology Switch mode Co
114. t that may cause by the long distance shipping If the unit is damaged save all the packing materials and notify the carrier immediately e MAINTENANCE No routine servicing of the power supply is required except for periodic cleaning Whenever the instrument is removed from operation first use a low pressure air to blow dust from in and around components on the printed circuit board clean the front panel with dry cloths or with a weak solution of soap and water clean the metal surfaces with naphtha or an equivalent solvent when you location consist high humility Then use the low pressure compressed air to blow it again RETURNING POWER SUPPLIES TO THE MANUFACTURER Return Material Authorization Policy Before returning a product directly to American Reliance Inc you must obtain a Return Material Authorization RMA number and the correct manufactory Ship To address Products must also be shipped prepaid Product shipments will be refused and returned at the customer s expense if they are unauthorized sent without an RMA clearly marked on the outside of the shipping box if they are shipped collect or if they are shipped to the wrong location When you contact AMREL to obtain service please have your operating manual ready for reference and be prepared to supply l The model number of your product 2 The serial number of your product 3 Information about the failure and or reason for the return 4 A copy of your dated proof
115. tage Mode CV and Constant Current Mode CC and two control modes Local Control Mode default setting and Remote Programming Mode Both operating modes are available regardless of which control mode is used OPERATING MODES Whether controlled by local or remote programming the power supply has two basic operating modes Constant Voltage Mode and Constant Current Mode The mode in which the power supply operates at any given time depends on the combination of e Output voltage setting VSET e Output current limit setting ISET e Resistance of the attached load RL CONSTANT VOLTAGE MODE OPERATION The power supply will operate in constant voltage mode whenever the load current IL is less than the current limit setting ISET lt NOTE gt IL VSET RL In constant voltage mode the power supply maintains the output voltage at the selected value VSET while the load current IL varies with the load requirements CONSTANT CURRENT MODE OPERATION The power supply will operate in constant current mode whenever the load resistance is low enough that the load current IL is equal to the current limit setting ISET lt NOTE gt VL ISETRL In constant current mode the power supply maintains the output current at the selected value ISET while the load voltage varies with the load requirements AUTOMATIC MODE CROSSOVER This feature allows the power supply to automatically switch operating modes in response to changing load requiremen
116. ters long CHAN SER 1 B12345 SERI 1 B12543 CHAN SER lt NR1 gt SERI lt NR1 gt lt CRD gt represents serial number None This command programs output to zero for a specified time Command Syntax Parameters Default suffix Examples Query Syntax Returned parameters Related Commands CHAN VERS CHAN SHUT lt channel gt lt NR1 gt Channel 1 31 channel number lt NR1 gt 0 30 shut down time ms CHAN SHUT I 30 SHUT DOWN I 25 CHAN SHUT lt channel gt SHUT DOWN lt channel gt lt NRI1 gt represents time in millisecond None This query returns the power supply s firmware version number for a specified channel Query Syntax Parameters Examples Returned parameters Related Commands CHAN VERS lt channel gt lt channel gt 1 31 channel number CHAN VERS I lt CRD gt represents firmware version number SYST VERS 4 21 CURRENT SUBSYSTEM This subsystem programs the output current of the power supply CURR This command directly programs the immediate current level of the power supply The immediate level is the current applied at the output terminals Command Syntax CURRent LEVel IMMediate lt channel gt lt NRf gt Parameters lt channel gt 1 31 channel number lt NRf gt minimum to maximum current value of the channel Default Suffix A RST Value 1 0 Examples CURR 1 0 500 CURR LEV 1 30 0 Query Syntax CURRent LE Vel IMMediate lt channel gt CURRen
117. tric current the proper wire size must be used Select a wire size with sufficient rating to carry the current without overheating Other factors to be taken into consideration are voltage drop and conductor temperature OPERATING CHARACTERISTICS AND CONFIGURATIONS These sections contain information on operating characteristics and how to configure the SPS Series All power supplies operate in either constant voltage CV or constant current CC mode over the rated output Their respective voltage and current operating locus are found in operating quadrants for all models The power supply acts as a constant voltage source for comparatively large values of load resistance and as a constant current source for comparatively small values of load resistance The automatic crossover or transition between these two modes of operations occurs at a critical stage or crossover value of load resistance Re Eg lg where E is the front panel voltage setting and I the front panel current setting The wake up area 50mA is the minimum current factory setting to excite any output voltage setting within the power supply range Figure 1 8 is the operating quadrant voltage vs current of the SPS series Voltage Wakeup Areee SOmA Crossover Current nax FIGURE 1 8 Operating Quadrant 1 16 FIGURE 1 9 DIMENSIONAL DRAWINGS 1 in 25 4mm 16 9 Sioe View v 175 TWO INSTALLATION INTRODUCTION This section prov
118. ts If the power supply is operating in CV mode and the load changed so that the load current became equal to the current limit setting the power supply would automatically switch into CC mode and the output voltage would vary in response to changes in load current If the additional load were subsequently removed so that the load current is again less than the current limit setting the supply would automatically return to CV mode SETTING THE OVER VOLTAGE PROTECTION The power supplies have over voltage protection OVP and over current protection OCP features to guard against abnormal operating conditions When either of these two functions is activated the unit disables the output The OVP LED will light up to indicate the over voltage has tripped Resetting the OVP circuit after activation requires removal of the over voltage condition by powering the unit OFF and back ON The OVP trip level can be set via the front panel FRONT PANEL OVP OPERATION The following procedure sets the trip level from the front panel 1 With the unit off check that the SW1 5 amp SW1 2 are set to Local Mode default setting 2 Using a small flat head screwdriver through the OVP ADJUST hole located on the front above the voltage amp current knobs turn the screw fully clockwise until an audible click is heard or approximately 10 turns 3 Turn the unit on and adjust the output voltage to the desired trip voltage 4 Slowly turn the adjusting screw cou
119. ts over current protection for channel I Sets over current protection for channel 2 Sets output state Sets output state for channel I Sets output state for channel 2 Sets over voltage protection state Sets over voltage protection state for channel1 Sets over voltage protection state for channel2 4 9 OVSET lt channel gt Sets over voltage protection level OVSET1 Sets over voltage protection level for channel1 OVSET2 Sets over voltage protection level for channel2 OVSET lt channel gt Returns over voltage protection level OVSET1 Returns over voltage protection level for channel I OVSET2 Returns over voltage protection level for channel 2 STATUS Returns status for both channel 1 and 2 VOUT lt channel gt Returns output voltage value VOUT1 Returns output voltage value for channel I VOUT2 Returns output voltage value for channel 2 VSET lt channel gt lt value gt VSET1 lt value gt Sets voltage level Sets voltage level for channel I VSET2 lt value gt Sets voltage level for channel 2 VSET lt channel gt Returns setting voltage value VSET1 Returns setting voltage value for channel I VSET2 Returns setting voltage value for channel 2 DESCRIPTION OF COMMON COMMANDS Common commands begin with an and consist of three letters command or three letters and a query They are defined by the IEEE 488 2 standard to perform common interface functions The SPS series power supply responds to the following comm
120. ts the over voltage protection OVP level of the power supply If the output voltage exceeds the OVP level and the VOLT PROT STAT is set to ON then the power supply output is disabled and the Questionable status register STAT QUES OV bit is set An over voltage condition can be cleared with the OUTP PROT CLE or VOLT PROT CLE or RST command after the condition that caused the OVP trip is removed Command Syntax Parameters Default Suffix RST Value Examples Query Syntax Returned Parameters Related Commands VOLTage PROTection LEVel lt channel gt lt NRf gt lt channel gt 1 31 channel number lt NRf gt 5 0 to 110 of maximum voltage level V 110 of maximum voltage level VOLT PROT 1 25 0 VOLT PROT LEV 1 33 0 VOLTage PROTection LE Vel lt channel gt lt NRf gt represents presently programmed OVP level OUTP PROT CLE VOLT PROT CLE RST SAV 4 39 VOLT PROT CLE This command clears the over voltage protection status and it dose not clear the over voltage protection setting VOLT PROT STAT After this command output remains in OFF state Command Syntax Parameter Example Query Syntax Related Commands VOLT PROT COUN VOLTage PROTection CLEar lt channel gt lt channel gt 1 31 channel number VOLT PROT CLE 1 None VOLT PROT STAT This command sets or queries the power supply over voltage OV protection counts value It is used for OVP calibration Please refer to the sample program OVP
121. ur Setting Decrement Value of GREEN Vour Setting Rotate Left Flashing Digit Increment Value of Rotate Right Flashing Digit GREEN V g r Setting Tap Twice Preview OV Setting ORANGE OV Setting Press amp Hold Edit Setting ORANGE OV Setting Tap in edit mode Select Digit to Edit ORANGE OV Setting Decrement Value of ORANGE OV Setting Rotate Left Flashing Digit Increment Value of i Rotate Right Flashing Digit ORANGE OV Setting SETTING CURRENT ISET amp OVER CURRENT 0C Start by locating the Encoder amp LED on the right side and refer to the table below for description Th O NOTE Preview Mode and Edit Mode will exit after 5 seconds of idle activity ENCODER PRESSED ENCODER ACTION FUNCTION LED STATUS Tap Once Preview Vour Setting GREEN lour Setting Press amp Hold Edit Confirm Setting GREEN lour Setting Tap in edit mode Select Digit to Edit GREEN lour Setting Rotate Left Decrement Value of GREEN lour Setting lour OC Flashing Digit p Increment Value of Rotate Right Flashing Digit GREEN lour Setting Tap Twice Preview OC Setting ORANGE OC Setting Press amp Hold Edit Confirm Setting ORANGE OC Setting Tap in edit mode Select Digit to Edit ORANGE OC Setting Rotate Left Decremen
122. ution 150mV 1mA Programming Accuracy Voltage 0 2 10 mV Current 0 3 10mA SPS 450 2 5 Readback Accuracy Voltage 0 2 20mV Current 0 3 20mA Line Regulation CV 0 01 Vm 2mvV CC 0 01 Im 2mA Load Regulation CV 0 02 Vm 5mV CC 0 03 Vm 5mV Efficiency 80 PARD Ripple amp Noise CV 30mVrms CV 200mVpp Transient Response 1 3mS for 50 to 100 load change within 1 of nominal voltage Remote Sense Voltage drop lt 5VDC output line Drift over 8 hours amp 30 minutes warm up period 0 01 10mV Operating Temperature ambient 0 C to 50 C Storage Temperature 40 C to 70 C Temperature Coefficient 30 minutes warm up period 100ppm C for CV 300ppm C for CC Humidity 0 C to 90 C RH non condensing Output Isolation 600VDC Front Panel Voltage 10 turn Knob Current 10 turn Knob ON OFF line circuit breaker Display LED Module 37 digits CV CC OVP LED status indicators AC Line Input 120VAC 10 240VAC 10 Line Frequency 50 60Hz Topology Switch mode Constant Voltage CV Constant Current CC Auto Crossover Outputs 1 Output Voltage 450VDC MAX Output Current 2 5ADC MAX Output Power 1 200 Watts MAX Programming Resolution 150mV 1mA Programming Accuracy Voltage 0 2 10 mV Current 0 3 10mA Readback Accuracy Voltage 0 2 20mV Current 0 3 20mA Line Regulation
123. warm up period 0 01 10mV 1 11 Operating Temperature ambient 0 C to 50 C Storage Temperature 40 C to 70 C Temperature Coefficient 30 minutes warm up period 100ppm C for CV 300ppm C for CC Humidity 0 C to 90 C RH non condensing Output Isolation 600VDC Front Panel Voltage 10 turn Knob Current 10 turn Knob ON OFF line circuit breaker Display LED Module 37 digits CV CC OVP LED status indicators SPS 120 10 AC Line Input 120VAC 10 240VAC 10 Line Frequency 50 60Hz Topology Switch mode Constant Voltage CV Constant Current CC Auto Crossover Outputs 1 Output Voltage 120VDC MAX Output Current 10ADC MAX Output Power 1 200 Watts MAX Programming Resolution 32mV 3mA Programming Accuracy Voltage 0 2 10 mV Current 0 3 10mA SPS 150 8 Readback Accuracy Voltage 0 2 20mV Current 0 3 20mA Line Regulation CV 0 01 Vm 2mvV CC 0 01 Im 2mA Load Regulation CV 0 02 Vm 5mV CC 0 03 Vm 5mV Efficiency 80 PARD Ripple amp Noise CV 12mVrms CV 100mVpp Transient Response 1 3mS for 50 to 100 load change within 1 of nominal voltage Remote Sense Voltage drop lt 5VDC output line Drift over 8 hours amp 30 minutes warm up period 0 01 10mV Operating Temperature ambient 0 C to 50 C Storage Temperature 40 C to 70 C Temperature Coefficient 30 minutes warm up p
124. x 8000 4000 2000 1000 800 400 200 100 Bit Position 23 22 21 20 19 18 17 16 Channel 24 23 22 21 20 19 18 17 Bit Weight hex 800000 400000 200000 100000 80000 40000 20000 10000 Bit Position 31 30 29 28 27 26 25 24 Channel 32 31 30 29 28 27 26 25 Bit Weight hex 80000000 40000000 20000000 10000000 8000000 4000000 2000000 1000000 SYST VERS This query returns the power supply s controller firmware version The returned value is of the form FV x xx where x xx is the firmware revision number Query Syntax Parameters Returned Parameters Example Related Commands TRIGGER SUBSYSTEM SYSTem VERSion none lt CRD gt SYST VERS IDN This subsystem controls the triggering of the power supply TRIG This command initiates a pending level change as specified by CURR LEV TRIG or VOLT LEV TRIG and clears the WTG bit in the Status Operation Condition register Command Syntax TRIGger STARt IMMediate Parameters None Examples TRIG TRIG IMM Query Syntax None Related Commands ABOR CURR TRIG TRG VOLT TRIG Note The function of TRIG is similar to TRG command except that the trigger is enabled by software in this command and it is enabled through hardware method in TRG command Most of the time they can be used interchangeably But there is one exception In parallel operation mode due to some speed constraints it s better for users to choose TRIG command to enable trigger instead of

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