TDK 750W HALF RACK technical manual Local Operation, Standard Operation, Constant Voltage Mode

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CHAPTER 5 LOCAL OPERATION

5.1 INTRODUCTION

This Chapter describes the operating modes that are not involved in programming and monitor- ing the power supply via its serial communication port (RS232/RS485) or by remote analog sig- nals. Ensure that the REM/LOC LED on the front panel is Off, indicating Local mode. If the REM/LOC LED is On, press the front panel REM/LOC button to change the operating mode to Local.

-For information regarding Remote Analog Programming, refer to Chapter 6.

-For information regarding usage of the Serial Communication Port, refer to Chapter 7.

5.2 STANDARD OPERATION

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 Output Voltage setting, Output Current setting and the load resistance.

5.2.1 Constant Voltage Mode

1.In constant voltage mode, the power supply regulates the Output Voltage at the selected value, while the load current varies as required by the load.

2.While the power supply operates in constant voltage mode, the VOLTAGE LED on the front panel illuminates.

3.Adjustment of the Output Voltage can be made when the power supply output is enabled (Output On) or disabled (Output Off). When the output is enabled, simply rotate the VOLTAGE encoder knob to program the output voltage. When the output is disabled, press the PREV button and then rotate the VOLTAGE encoder knob. The VOLTAGE meter will show the programmed Output Voltage for 5 seconds after the adjustment has been com- pleted. Then the VOLTAGE meter will display “OFF”.

4.Adjustment resolution can be set to coarse or fine resolution. Press FINE button to select be- tween the lower and higher resolution. The FINE LED turns On when the resolution is set to FINE.

NOTE

If after completing the adjustment, the display shows a different value than the setting, the power supply may be at current limit. Check the load condition and the power supply Output Current setting.

NOTE

The maximum and minimum setting values of the output voltage are limited by the Over Voltage protection and Under Voltage limit setting. Refer to Sections 5.3 and 5.4 for more details.

5.2.2 Constant Current Mode

1.In constant current mode, the power supply regulates the Output Current at the selected value, while the voltage varies with the load requirement.

2.While the power supply is operating in constant current mode, the CURRENT LED on the front panel illuminates.

3.Adjustment of the Output Current setting can be made when the power supply output is en- abled (Output On) or disabled (Output Off).

-Disabled output (Off): Press PREV button and then rotate the Current encoder knob. The CURRENT meter will show the programmed Output Current limit for 5 seconds after the ad- justment has been completed. Then the VOLTAGE meter will display “OFF”.

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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 Sicherheits-und Warnsymbole Anderungen and BauteileersatzUmweltbedingungen Introduction Features and optionsGeneral Information General DescriptionAnalog voltage programming and monitoring Multiple output power systemControl via the serial communication port Parallel operationAccessories Specifications ChapterFront Panel Supplemental Characteristics Genesystm Genh 750W Power Supplies Outline Drawings Preparation for USE InstallationGeneral Initial InspectionsSingle unit installation Rack MountingAC Source Requirements AC Input Power ConnectionLOCATION, Mounting and Cooling GENH/RM Rack Mounting outline drawingsAC Input Cord TURN-ON Checkout ProcedureAC Input Connector GeneralOVP Check Constant Voltage CheckConstant Current Check UVL CheckConnecting the Load Wire termination AWGMaking the load connections Noise and Impedance EffectsInductive loads 6V to 60V ModelsBus-bars shield mounting 80V to 600V Models 83-507-5002 Rev. B Connecting single loads, local sensing default Connecting single loads, remote sensingConnecting multiple loads, radial distribution method Multiple load connection with distribution terminals Grounding outputsLocal and Remote Sensing Sense wiringOutput Terminal Grounding Local sensing10.4 J2 sense connector technical information Remote sensingFront and Rear Panel Controls and Connectors Front Panel Controls and IndicatorsVoltage Auxiliary Function Rear Panel Connections and Controls Rear panel connections and controls Number DescriptionRear Panel SW1 Setup Switch 1 SW1 position functionRear Panel J1 Programming and Monitoring Connector Resetting the SW1 switchMaking J1 connections 83-507-5002 Rev. B Ifcom SignalEnain LocalLocal Operation Constant Voltage ModeConstant Current Mode Standard OperationOver Voltage Protection OVP Setting the OVP levelResetting the OVP circuit Automatic CrossoverFoldback Protection Output SHUT-OFF SO Control VIA Rear Panel J1 ConnectorUnder Voltage Limit UVL Output ON/OFF ControlENABLE/DISABLE Control VIA Rear Panel J1 Connector CV/CC SignalLast Setting Memory Psok SignalOver Temperature Protecton OTP 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 voltagesParallel Operation Setting up the Master unitSetting up the Slave units Basic parallel operationAdvanced parallel configuration Setting Over Voltage protectionSetting Foldback protection Setting the units as Master or SlaveCurrent display accuracy Master and Slave units default operationTo release units from Slave mode 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 ConfigurationRear Panel RS232/RS485 Connector 6 RS232/RS485 port in Local modeFront panel in Remote 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 DescriptionInitialization Control Commands ID Control CommandsOutput Control Commands FILTER? DVC?Filter OUT?Global Output Commands Disable SRQ retransmission MD Mode Option Required Single Byte CommandsEnable MD Mode MD Mode Option Required Enable SRQ retransmission MD Mode Option RequiredAddressed commands with response Read registers Print Power On TimeRetransmit Last Message Test if MD Mode is Installed Addressed commands without response Acknowledge SRQRe-enable SRQ with out reading/clearing the Seve Register 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 RegisterPower supply set-up Serial Communication Test SET-UPCommunication Test 1 0-5V/0-10V Option PN IS510 SpecificationsIsolated Analog Programming Option PPM/CIsolated Programming & Monitoring Connector Setup and Operating Instructions Maintenance OUP Fuse Rating