TDK 750W HALF RACK technical manual Resisitive Programming of Output Voltage and Current Limit

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6.5RESISITIVE PROGRAMMING OF OUTPUT VOLTAGE AND CURRENT LIMIT

For resistive programming, internal current sources, for Output Voltage and/or Output Current control, supply 1mA current through external programming resistors connected between J1-9 & 22 and J1-10 & 23. The voltage across the programming resistors is used as a programming voltage for the power supply. Resistance of 0i5Kohm or 0i10Kohm can be selected to program the Output Voltage and Output Current from zero to full scale.

A variable resistor can control the output over its entire range, or a combination of variable resis- tor and series/parallel resistors can control the output over restricted portion of its range.

Perform the following procedure to set the power supply to Resistive programming:

1.Turn the AC On/Off switch to Off.

2.Set setup switch SW1, positions 1 and 2 to their UP position.

3.Set SW1, position 3 to select the programming resistor range according to Table 6-4.

4.Set SW1, positions 7 and 8 to their UP position, to enable resistive programming mode.

5.Connect a wire jumper between J1-8 and J1-12 (refer to Table 4-4).

6.Connect the programming resistors to the mating plug of J1 as shown in Fig.6-2.

7.Set the programming resistors to the desired resistance and turn the power supply ON. Ad- just the resistors to change the power supply output.

NOTES:

1.SW1, positions 4, 5, 6 and 9 are not required for remote programming. Their settings can be determined according to the application requirements.

2.The control circuits allow the user to set the Output Voltage and Output Current up to 5% over the model-rated maximum value. The power supply will operate within the extended range, however it is not recommended to operate the power supply over its voltage and cur- rent rating and performance is not guaranteed.

3.To maintain the temperature stability specification of the power supply, the resistors used for programming should be stable and low noise resistors, with temperature coefficient of less than 50ppm.

4.When resistive programming is used, front panel and computer control (via serial communi- cation port) of Output Voltage and Current are disabled.

SW1-3 setting

Output Voltage programming

Output Current programming

 

VPGM (J1-9)

IPGM (J1-10)

UP

0-10Kohm

0-10Kohm

DOWN

0-5Kohm

0-5Kohm

Table 6-4: SW1-3 setting and programming range

J1 connector, rear panel view

OUTPUT CURRENT

 

 

OUTPUT VOLTAGE

PROGRAMMING

 

 

PROGRAMMING

PROGRAMMING

 

 

 

RESISTOR

 

 

 

12

10

9

8

13

 

 

1

OPTIONAL SETS

25

14

23

22

LOWER LIMIT

 

 

PROGRAMMING

RESISTOR

OPTIONAL SETS LOWER LIMIT

OPTIONAL SETS

OPTIONAL SETS

UPPER LIMIT

UPPER LIMIT

Fig.6-2: Remote resistive programming

48

83-507-5002 Rev. B

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Contents Genesystm 750W Half Rack Page Page Genesys Manual Supplement Table of Contents Front and Rear Panel Controls and CONNECTORS………... ……… ……… Isolated Analog Progamming Option ……………………………..…… Warranty Safety Instructions Safety Instructions SICHERHEITS-INSTALLATIONS Anweisungen Umweltbedingungen Sicherheits-und WarnsymboleAnderungen and Bauteileersatz Features and options General InformationIntroduction General DescriptionMultiple output power system Control via the serial communication portAnalog voltage programming and monitoring Parallel operationAccessories Specifications ChapterFront Panel Supplemental Characteristics Genesystm Genh 750W Power Supplies Outline Drawings Installation GeneralPreparation for USE Initial InspectionsSingle unit installation Rack MountingAC Input Power Connection LOCATION, Mounting and CoolingAC Source Requirements GENH/RM Rack Mounting outline drawingsTURN-ON Checkout Procedure AC Input ConnectorAC Input Cord GeneralConstant Voltage Check Constant Current CheckOVP Check UVL CheckConnecting the Load Wire termination AWGNoise and Impedance Effects Inductive loadsMaking the load connections 6V to 60V ModelsBus-bars shield mounting 80V to 600V Models 83-507-5002 Rev. B Connecting multiple loads, radial distribution method Connecting single loads, local sensing defaultConnecting single loads, remote sensing Multiple load connection with distribution terminals Grounding outputsSense wiring Output Terminal GroundingLocal and Remote Sensing Local sensing10.4 J2 sense connector technical information Remote sensingVoltage Front and Rear Panel Controls and ConnectorsFront Panel Controls and Indicators Auxiliary Function Rear Panel Connections and Controls Rear panel connections and controls Number DescriptionRear Panel SW1 Setup Switch 1 SW1 position functionMaking J1 connections Rear Panel J1 Programming and Monitoring ConnectorResetting the SW1 switch 83-507-5002 Rev. B Signal EnainIfcom LocalConstant Voltage Mode Constant Current ModeLocal Operation Standard OperationSetting the OVP level Resetting the OVP circuitOver Voltage Protection OVP Automatic CrossoverOutput SHUT-OFF SO Control VIA Rear Panel J1 Connector Under Voltage Limit UVLFoldback Protection Output ON/OFF ControlENABLE/DISABLE Control VIA Rear Panel J1 Connector CV/CC SignalPsok Signal Over Temperature Protecton OTPLast Setting Memory SAFE-START and AUTO-RESTART ModesSeries Operation Series connection for increased output voltageSeries connection for positive and negative output voltage Series connection for positive/negative output voltagesSetting up the Master unit Setting up the Slave unitsParallel Operation Basic parallel operationSetting Over Voltage protection Setting Foldback protectionAdvanced parallel configuration Setting the units as Master or SlaveMaster and Slave units default operation To release units from Slave modeCurrent display accuracy AST OFF OUT OFFDAISY-CHAIN Connection Front Panel LockingUnlocked front panel Locked front panelRemote Analog Programming LOCAL/REMOTE Analog IndicationDown Remote voltage programming connectionResisitive Programming of Output Voltage and Current Limit Remote resistive programmingRemote Monitoring of Output Voltage and Current RS232 & RS485 Remote Control ConfigurationFront panel in Remote mode Rear Panel RS232/RS485 Connector6 RS232/RS485 port in Local mode MD Mode Description MD Mode enable Serial communication modeMD Mode SRQ MD Mode SRQ RetransmissionConnecting Power Supplies to RS232 or RS485 BUS Single power supplyCommunication Interface Protocol Error Messages Command SET DescriptionOutput Control Commands Initialization Control CommandsID Control Commands DVC? FilterFILTER? OUT?Global Output Commands Single Byte Commands Enable MD Mode MD Mode Option RequiredDisable SRQ retransmission MD Mode Option Required Enable SRQ retransmission MD Mode Option RequiredRetransmit Last Message Addressed commands with response Read registersPrint Power On Time Re-enable SRQ with out reading/clearing the Seve Register Test if MD Mode is InstalledAddressed commands without response Acknowledge SRQ 110x STATUS, Error and SRQ Registers Status Control CommandsConditional Registers TXDService Request Enable and Event Registers BITFault Enable Register Fault Event RegisterStatus Enable Register Status Event RegisterCommunication Test Power supply set-upSerial Communication Test SET-UP Specifications Isolated Analog Programming Option1 0-5V/0-10V Option PN IS510 PPM/CIsolated Programming & Monitoring Connector Setup and Operating Instructions Maintenance OUP Fuse Rating
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