TDK 5KW technical manual Parallel Operation

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5.15 PARALLEL OPERATION

Up to four units of the same VOLTAGE and CURRENT rating can be connected in parallel to provide up to four times the Output Current capability. One of the units operates as a Master and the remain- ing units are Slaves. The Slave units are analog programmed by the Master unit. In remote digital op- eration, only the Master unit can be programmed by the computer, while the Slave units may be con- nected to the computer for voltage, current and status readback only. Follow the following procedure to configure multiple supplies for parallel operation. Refer to Sec. 5.15.1 and to Sec. 5.15.2 for de- tailed explanation.

5.15.1 Basic parallel operation

In this method, setting the units as Master and Slaves is made by the rear panel J1 connections and the setup switch SW1. Each unit displays its own output current and voltage. To program the load cur- rent, the Master unit should be programmed to the total load current divided by the number of units in the system. Refer to the following procedure to configure multiple supplies for basic parallel operation.

1.Setting up the Master unit

Set the Master unit Output Voltage to the desired voltage. Program the Output Current to the desired load current divided by the number of parallel units. During operation, the Master unit operates in CV mode, regulating the load voltage at the programmed Output Voltage. Connect the sensing circuit to local or remote sensing as shown in Fig.5-4 or fig.5-5.

2.Setting up the Slave units

-1. The Output Voltage of the Slave units should be programmed 2-5% higher than the Output Voltage of the Master unit to prevent interference with the Master unit’s control. The Output Cur- rent setting of each unit should be programmed to the desired load current divided by the number of parallel units.

-2. Set the rear panel setup switch SW1 position 2 to the up position.

-3. Connect a wire jumper between J1-8 and J1-12 (refer to Table 4-4).

-4. Connect J1 terminal 10(IPGM) of the slave unit to J1 terminal 25(P) of the master unit.

-5. Connect J1 terminal 23(IPGM_RTN) of the slave unit to J1 terminal 12 (COM) of the master unit. During operation, the Slave units operate as a controlled current source following the Master Output Current. It is recommended that the power system be designed so that each unit supplies up to 95% of its current rating because of the imbalance which may be caused by cabling and connection volt- age drop.

3.Daisy Chain Connection: (See Fig. 5.6)

These set up and connections are optional but is strongly recommended. It will shut down all power supplies when a fault condition occurs in any one of them.

Switch SW1 position 5 should be in its down position for all power supplies.

Connect J1-16 of the Master Supply to J1-15 of the ‘First’ Slave Supply (If any).

Connect J1-16 of the ‘First’ Slave Supply to J1-15 of the ‘Second’ Slave Supply (If any).

Connect J1-16 of the ‘Second’ Slave Supply to J1-15 of the ‘Third’ Slave Supply (If any).

Connect J1-16 of the ‘Last’ Slave Supply to J1-15 of the ‘Third’ Slave Supply (If any).

Connect J1-2 (or J1-3) common to all supplies (See Fig. 5.6).

4.Setting Over Voltage protection

The Master unit OVP setting should be programmed to the desired OVP level. The OVP setting of the slave units should be programmed to a higher value than the Master OVP. When the Master unit shuts down, it programs the Slave unit to zero Output Voltage. If a Slave unit shuts down (when its OVP is set lower than the Master Output Voltage and, if all P/S are not daisy chained per section 3 above), only that Slave unit would shut down, and the remaining Slave units would supply all the load current.

5.Setting Foldback protection

Foldback protection, is desired, may only be used with the Master unit. When the Master unit shuts down, it programs the Slave units to zero Output Voltage.

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83-515-000 Rev. B

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Page 49 Page 51
Contents 2U Genesystm 5kW Page Page Genesys Manual Supplement Table of Contents Front and Rear Panel Controls and Connectors ……………… Remote Analog PROGRAMMING……………………………………………… Isolated Analog Progamming OPTION………………………………… Disclaimer Limitation of WarrantyWarranty Service Trademark InformationSafety Instructions Environmental Conditions FCC Compliance NoticeSICHERHEITS-INSTALLATIONS Anweisungen SICHERHEITS-HINWEISE Sicherheits-und WarnsymboleAnderungen and Bauteileersatz UmweltbedingungenIntroduction Features and optionsGeneral Information General DescriptionAnalog voltage programming and monitoring Multiple output power systemControl via the serial communication port Parallel operationAccessories Specifications 83-515-000 Rev. B Supplemental Characteristics Genesystm 5000W Power Supplies Outline Drawings Preparation for USE InstallationGeneral Initial InspectionsLOCATION, Mounting and Cooling To install the Power Supply in a rackRack Mounting AC Source RequirementsAC Input Wire Connection AC Input Power ConnectionAC Input Connector AC Input CordStripped Wires installed in Strain Relief Constant Voltage Check TURN-ON Checkout ProcedurePrior to Operation Constant Current CheckUVL Check Address SettingBaud Rate Setting RS-232 and RS-485 only Foldback CheckCurrent Carrying Capacity Connecting the LoadLoad Wiring AWGInductive loads Wire terminationNoise and Impedance Effects Making the load connections 8V to 100V Models Load wires connection, 8V to 100V models 83-515-000 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 outputsOutput Terminal Grounding Sense wiringLocal and Remote Sensing Local sensingRepackaging for Shipment 10.4 J2 sense connector technical informationRemote sensing Front and Rear Panel Controls and Connectors Front Panel Controls and IndicatorsSection Rear Panel Connections and Controls Rear Panel SW1 Setup Switch SW1 setup DIP-switchResetting the SW1 switch 1 SW1 position functionRear Panel J1 Programming and Monitoring Connector Making J1 connectionsIfcom SignalEnain LocalLocal Operation Constant Voltage ModeConstant Current Mode IntroductionAutomatic Crossover Setting the OVP levelResetting the OVP circuit Over Voltage Protection OVPFoldback Protection Output SHUT-OFF SO Control VIA Rear Panel J1 Connector4A Under Voltage Limit UVL Output ON/OFF ControlPsok Signal ENABLE/DISABLE Control VIA Rear Panel J1 ConnectorCV/CC Signal SAFE-START and AUTO-RESTART Modes Over Temperature Protecton OTPLast Setting Memory Series OperationSeries connection for increased output voltage Series connection, local sensingSeries connection for positive and negative output voltage Series connection for positive/negative output voltagesParallel Operation Master and Slave units default operation Advanced parallel configurationSetting the units as Master or Slave Connection to the loadAST OFF *OUT OFF To release units from Slave modeCurrent display accuracy Unlocked front panel DAISY-CHAIN ConnectionFront Panel Locking Locked front panelLOCAL/REMOTE Analog Indication Remote Analog ProgrammingLOCAL/REMOTE Analog Control J1 connector, rear panel view Resisitive 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 SRQ MD Mode DescriptionMD Mode enable Serial communication mode 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 FILTER? DVC?Filter OUT?Global Output Commands GeneralDisable SRQ retransmission MD Mode Option Required Single Byte CommandsEnable MD Mode MD Mode Option Required Enable SRQ retransmission MD Mode Option RequiredTest if MD Mode is Installed Addressed commands with response Read registersPrint Power On Time Addressed commands without response Acknowledge SRQ1010 None Disable retransmission of SRQs by sup Voltage programming range STATUS, Error and SRQ Registers Status Control CommandsConditional Registers Status RegistersBIT FoldFault Event Register Service Request Enable and Event RegistersFault Enable Register Status Enable Register Status Event RegisterCommunication Test Power supply set-upSerial Communication Test SET-UP 1 0-5V/0-10V Option PN IS510 SpecificationsIsolated Analog Programming Option PPM/CIsolated Programming & Monitoring Connector Setup and Operating Instructions Maintenance Fuse Rating OUP

5KW specifications

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