TDK-Lambda GENESYS 750W HALF RACK Technical Manual
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TDK-Lambda GENESYS 750W HALF RACK Technical Manual

Programmable dc power supplies
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TECHNICAL MANUAL FOR
GENESYS
Programmable DC Power Supplies
Document: 83-507-5002 Rev B
TDK-Lambda Americas Inc.
405 Essex Road, Neptune, NJ 07753
Tel:
Fax:
Web: www.US.TDK-Lambda.com/HP
TM
750W HALF RACK
(732) 922-9300
(732) 922-9334

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  • Page 1 TECHNICAL MANUAL FOR GENESYS 750W HALF RACK Programmable DC Power Supplies Document: 83-507-5002 Rev B TDK-Lambda Americas Inc. 405 Essex Road, Neptune, NJ 07753 Tel: Fax: Web: www.US.TDK-Lambda.com/HP (732) 922-9300 (732) 922-9334...
  • Page 4 GENESYS™ Manual Supplement FOR UNITS EQUIPPED WITH “IEMD” OPTION. ALSO REFER TO MANUAL 83-030-200 IEMD. 83-507-5002 Rev. B...

  • Page 5: Table Of Contents

    TABLE OF CONTENTS WARRANTY……………………………………………………………………………………………. SAFETY INSTRUCTIONS…………………………………………………………………………….. GERMAN SAFETY INSTRUCTIONS………………………………………………………………… CHAPTER 1 GENERAL INFORMATION…………………………………………………………... 1.1 USER MANUAL CONTENT………………………………………………………………………. 1.2 INTRODUCTION…………………………………………………………………………………… 1.2.1 General description………………………………………………………………………….. 1.2.2 Models covered ……………………………………………………………………………... 1.2.3 Features and options ……………………………………………………………………….. 1.2.4 Multiple output power system ……………………………………………………………… 1.2.5 Control via the serial communication port………………………………………………… 1.2.6 Analog voltage programming and monitoring…………………………………………….
  • Page 6 TABLE OF CONTENTS 3.9 CONNECTING THE LOAD……………………………………………………………………….. 3.9.1 Load Wiring………………………………………………………………………………….. 3.9.2 Current Carrying Capacity…………………………………………………………………. 3.9.3 Wire termination……………………………………………………………………….……. 3.9.4 Noise and Impedance Effects……………………………………………………………... 3.9.5 Inductive loads………………………………………………………………………………. 3.9.6 Making the load connections………………………………………………………………. 3.9.7 Connecting single loads, local sensing (default)………………………………………… 3.9.8 Connecting single loads, remote sensing………………………………………………... 3.9.9 Connecting multiple loads, radial distribution method…………...……………………...
  • Page 7 TABLE OF CONTENTS 5.15 PARALLEL OPERATION………………………………………………………….………….…. 5.15.1 Basic parallel operation……………………………………………………………………. 5.15.2 Advanced parallel operation………………………………………………………………. 5.16 DAISY-CHAIN SHUT-OFF CONNECTION……………………………………………………. 5.17 FRONT PANEL LOCKING………………………………………………………………………. 5.17.1 Unlocked front panel………………………………………………………………………. 5.17.2 Locked front panel…………………………………………………………………………. CHAPTER 6 REMOTE ANALOG PROGRAMMING……………………………………………… 6.1 INTRODUCTION…………………………………………………………………………………… 6.2 LOCAL/REMOTE ANALOG CONTROL………………………………………………………… 6.3 LOCAL/REMOTE ANALOG INDICATION……………………………………………………….
  • Page 8 TABLE OF CONTENTS 7.10.4 Addressed commands with response…………………………………………………… 7.10.5 Addressed commands without response……………………………………………….. 7.10.6 Status Control Commands……………………………………………………………….. 7.11 STATUS, ERROR AND SRQ REGISTERS……………………………………………….….. 7.11.1 General Description………………………………………………………………….……. 7.11.2 Conditional registers………………………………………………………………….…… 7.11.3 Service Request Enabled and Event Registers………………………………….…….. 7.12 SERIAL COMMUNICATION TEST SET-UP…………………………………………….……. CHAPTER 8 ISOLATED ANALOG PROGAMMING OPTION……………………………..…….

  • Page 9: Warranty

    QA seal has been removed or altered by anyone other than TDK-Lambda Americas Inc. authorized personnel. TDK-Lambda Americas Inc. does not warrant the buyer’s circuitry or malfunctions of TDK-Lambda Americas Inc.

  • Page 10: Safety Instructions

    Failure to comply with the safety precautions or warnings in this document violates safety standards of design, manufacture and intended use of this equipment and may impair the built- in protections within. TDK-Lambda Americas Inc. shall not be liable for user’s failure to comply with these requirements. INSTALLATION CATEGORY The Genesys power supply series has been evaluated to INSTALLATION CATEGORY II.

  • Page 11: Environmental Conditions

    SAFETY INSTRUCTIONS ENVIRONMENTAL CONDITIONS The Genesys power supply series safety approval applies to the following operating conditions: *Indoor use *Maximum relative humidity: 90% (no condensation) *Pollution degree 2 CAUTION Risk of Electrical Shock Instruction manual symbol. The instrument will be marked with this symbol when it is necessary for the user to refer to the instruction manual.

  • Page 12: German Safety Instructions

    Einrichtung zu keiner Gefahr im Sinne dieser Norm führen kann, sind in diesem Handbuch beschrieben. TDK-Lambda Americas Inc. ist nich verantwortlich fur Fehler, die bei der Inbetriebnahme des Gerates auf Grundlage dieser Sicherheitsanweisungen durch den Betreiber entstehen können.
  • Page 13 Anderungen and Bauteileersatz Ersatzteilaustausch – und Anderungen durfen nur von autorisiertem TDK-Lambda Americas Inc. SERVICE-PERSONEN durchgefuhrt werden. Fur Reparaturen oder Anderungen ist das Gerat zur TDK-Lambda Americas Inc. Service-Niederlassung zu retournieren. SICHERHEITS-HINWEISE Umweltbedingungen Die Genesys Stromversorgungs-Serie ist gemassden Sicherheitsabnahmen fur folgende Betriebsbedingungen zugelassen.

  • Page 14: Chapter 1 General Information

    GENH 750W power supply series. The instructions refer to the standard power supplies, including the built-in RS232/RS485 serial communication. For information related to operation with the optional IEEE programming, refer to User’s Manual for Power Supply IEEE Programming Interface. (TDK-Lambda Americas Inc. P/N 83-030-200). 1.2 INTRODUCTION 1.2.1 General Description Genesys power supplies are wide output range, high performance switching power supplies.

  • Page 15: Multiple Output Power System

    Parallel operation (Master/Slave) with Active current sharing. Remote sensing to compensate for voltage drop of power leads. External Analog Programming and Monitoring standard (0-5V or 0-10V, user selectable). Cooling fan speed control for low noise and extended fan life. Zero stacking-no ventilation holes at the top and bottom surface of the power supply. Optional GPIB interface (SCPI compatible).

  • Page 16: Cooling And Mechanical Construction

    1.2.9 Cooling and mechanical construction The Genesys series is cooled by internal fans. At the installation, care must be taken to allow free airflow into the power supply via the front panel and out of the power supply via the rear panel.

  • Page 17: Chapter 2 Specifications

    CHAPTER 2 SPECIFICATIONS 2.1 OUTPUT RATING MODEL 1.Rated output voltage (*1) 2.Rated output current 750W (*2) 3.Rated output power 750W MODEL 1.Rated output voltage (*1) 2.Rated Output Current 1500W (*2) 3.Rated output power 1500W 2.2 INPUT CHARACTERISTICS 1. Input voltage/freq. (*3) 2.

  • Page 18: Programming And Readback

    2.6 PROGRAMMING AND READBACK (RS232/485, Optional IEEE Interface) 1. Vout programming accuracy 2. Iout programming accuracy (*13) 3. Vout programming resolution. 4. Iout programming resolution 5. Vout readback accuracy 6. Iout readback accuracy (*13) 7. Vout readback resolution 8. Iout readback resolution 2.7 PROTECTIVE FUNCTIONS Output shut-down when power supply changes from CV to CC.

  • Page 19: Supplemental Characteristics

    4. EMI Data: Typical EMI (conducted and radiated) performance of the power supply. The supplemental characteristics data is held in each TDK-Lambda Americas Inc. sales and ser- vice facility. For further details please contact the TDK-Lambda Americas Inc. office nearest you.

  • Page 20: Outline Drawings

    2.13 GENESYS GENH 750W POWER SUPPLIES OUTLINE DRAWINGS 83-507-5002 Rev. B...

  • Page 21: Chapter 3 Installation

    Keep all packing material until the inspection has been completed. If damage is detected, file a claim with carrier immediately and notify the TDK-Lambda Americas Inc. sales or authorized ser- vice facility nearest you.

  • Page 22: Rack Mounting

    3.4 RACK MOUNTING To install a GENH750W one unit or two units side-by-side in a standard 19” Rack in 1U (1.75”) height, use option kit P/N: GENH/RM The Rack Mount kit allows the units to be zero stacked for maximum system flexibility and power density without increasing the 1U height of the units.

  • Page 23: Genh/Rm Rack Mounting Outline Drawings

    3.4.3 GENH/RM Rack Mounting outline drawings: 3.5 LOCATION, MOUNTING AND COOLING This power supply is fan cooled. The air intake is at the front panel and the exhaust is at the rear panel. Upon installation allow cooling air to each the front panel ventilation inlets. Allow minimum 10cm (4-inch) of unrestricted air space at the front and the rear of the unit.

  • Page 24: Ac Input Connector

    Some components inside the power supply area are at AC voltage even when the On/Off switch is in the “Off” position. To avoid electric shock hazard, disconnect the line cord and load and wait two minutes before removing cover. 3.7.1 AC Input Connector An IEC connector is provided on the rear panel for connecting the unit to the AC power source with an AC cord.

  • Page 25: Constant Voltage Check

    3.8.3 Constant Voltage Check 1. Turn on the output by pressing the OUT pushbutton so the OUT LED illuminates. 2. Observe the power supply VOLT display and rotate the Voltage encoder. Ensure that the Output Voltage varies while the VOLT encoder is rotated. The minimum control range is from zero to the maximum rated output for the power supply model.

  • Page 26: Foldback Check

    3.8.7 Foldback Check Shorting the output may expose the user to hazardous voltages. Observe proper safety procedures. Refer to Section 5.5 for explanation of the FOLD function prior to performing the procedure below. 1. Ensure that the Output Voltage is set to approx. 10% of the unit rating. 2.

  • Page 27: Wire Termination

    2. Wire size should be selected to enable voltage drop per lead to be less than 1.0V at the rated current. Although units will compensate for up to 5V in each load wire, it is recom- mended to minimize the voltage drop (1V typical maximum) to prevent excessive output power consumption from the power supply and poor dynamic response to load changes.

  • Page 28: Noise And Impedance Effects

    3.9.4 Noise and Impedance Effects To minimize the noise pickup or radiation, the load wires and remote sense wires should be twisted pairs to the shortest possible length. Shielding of sense leads may be necessary in high noise environments. Where shielding is used, connect the shield to the chassis via a rear panel Ground screw.
  • Page 29 Fig. 3-6: bus-bars shield mounting 80V to 600V Models WARNING Hazardous voltages exist at the outputs and the load connections. To protect personnel against accidental contact with hazardous voltages, ensure that the load and its connections have no accessible live parts. Ensure that the load wiring insulation rating is greater than or equal to the maximum output voltage of the power supply.
  • Page 30 The 80V to 600V models have a four terminal wire clamp output connector. The two left terminals are the positive outputs and the two right terminals are the negative outputs. The connector re- quirements are as follows: 1. Wires: AWG18 to AWG10. 2.

  • Page 31: Connecting Single Loads, Local Sensing (Default)

    3.9.7 Connecting single loads, local sensing (default). Fig.3-10 shows recommended load and sensing connections for a single load. The local sense lines shown are default connections at the rear panel J2 sense connector. Local sensing is suit- able for applications where load regulation is less critical. Power Supply 3.9.8 Connecting single loads, remote sensing...

  • Page 32: Multiple Loads Connection With Distribution Terminals

    Power Supply Rem.sense Local sense Local sense Rem.sense Fig.3-12: Multiple loads connection, radial distribution, local sense 3.9.10 Multiple load connection with distribution terminals If remotely located output distribution terminals are used, the power supply output terminals should be connected to the distribution terminals by pair of twisted and/or shielded wires. Each load should be separately connected to the remote distribution terminals (see Fig.3-13).

  • Page 33: Local And Remote Sensing

    There is a potential shock hazard at the RS232/RS485 and the IEEE ports when using power supplies with rated or combined voltage greater than 400V with the Positive Output of the power supplies grounded. Do not connect the Positive out- put to ground when using the RS232/RS485 or IEEE under the above conditions.

  • Page 34: Remote Sensing

    Tightening torque: 0.22-0.25Nm (1.95-2.21Lb-Inch.) 3.11 REPACKAGING FOR SHIPMENT To ensure safe transportation of the instrument, contact the TDK-Lambda Americas Inc. sales or service facility near you for Return Authorization and shipping information. Please attach a tag to the power supply describing the problem and specifying the owner, model number and serial number of the power supply.

  • Page 35: Chapter 4 Front And Rear Panel Controls And Connectors

    CHAPTER 4 FRONT AND REAR PANEL CONTROLS AND CONNECTORS 4.1 INTRODUCTION The Genesys Power Supply series has a full set of controls, indicators and connectors that al- low the user to easily setup and operate the unit. Before starting to operate the unit, please read the following Sections for explanation of the functions of the controls and connectors terminals.
  • Page 36 Table 4-1: Front Panel Controls and Indicators Number Control/Indicator CURRENT display CURRENT indicator CURRENT control OUT button OUT indicator REM/LOC button REM/LOC indicator FOLD button FOLD indicator OVP/UVL button PREV button Description 4 digit, 7 segment LED display. Normally displays the Output Current.

  • Page 37: Rear Panel Connections And Controls

    Table 4-1: Front Panel Controls and Indicators (continued) Number Control/Indicator PREV indicator FINE button FINE indicator ALARM indicator AC Power switch 4.3 REAR PANEL CONNECTIONS AND CONTROLS See Fig.4-2 to review the connections and controls located on the power supply rear panel. Refer to Table 4-2 for explanations about the rear panel connections and controls.

  • Page 38: Rear Panel Sw1 Setup Switch

    Table 4-2: Rear panel Connections and Controls (continued) Number Item Description RJ-45 type connector, used for daisy-chaining power supplies to Remote Out form a serial communication bus. connector Connector for remote analog interface. Includes Output Voltage J1 Analog and Current programming and monitoring signals, Shut-off control Remote (electrical signal), Enable/Disable control (dry-contact), Power Sup- connector...

  • Page 39: Resetting The Sw1 Switch

    Table 4-3: SW1 Positions Functions Position Function Output Voltage SW1-1 remote analog programming Output Current SW1-2 remote analog programming Programming Range Select SW1-3 (Remote voltage/resistive) Output Voltage and SW1-4 Current Monitoring Range SW1-5 Shut-Off Logic select SW1-6 RS232/485 select Outp ut Voltage SW1-7 Resistive Programming Output Current...
  • Page 40 CAUTION Terminals 12, 22 and 23 of J1 are connected internally to the negative sense (-S) potential of the power supply. Do not attempt to bias any of these terminals relative to the negative sense. Use the Isolated Programming interface option to allow control from a programming source at a dif- ferent potential relative to the power supply negative.
  • Page 41 VMON CV/CC IMON IPGM_RTN VPGM_RTN LOC/REM SIGNAL Fig. 4-4: J1 Connector terminals and functions Table 4-4: J1 connector terminals and functions Signal contact name J1-1 ENA_IN Enable/Disable the power supply output by dry-contact (short/open) with ENA_OUT. J1-2 IF_COM Isolated Interface Common. Return for the SO control, J1-3 PS_OK signal and for the optional IEEE interface.

  • Page 42: Chapter 5 Local Operation

    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.

  • Page 43: Automatic Crossover

    -Enabled output, power supply in Constant Voltage mode: Press the PREV button and then rotate the CURRENT encoder knob. The CURRENT meter will show the pro- grammed Output Current for 5 seconds after the adjustment has been completed, and then will return to show the actual load current. -Enabled output, power supply in Constant Current mode: Rotate the CURRENT encoder knob to adjust the Output Current.

  • Page 44: Under Voltage Limit (Uvl)

    5.4 UNDER VOLTAGE LIMIT (UVL) The UVL prevents adjustment of the Output Voltage below a certain limit. The combination of UVL and OVP functions, allow the user to create a protection window for sensitive load circuitry. 5.4.1 Setting the UVL level Setting the UVL can be made when the power supply output is Enabled (On) or Disabled (Off).

  • Page 45: Enable/Disable Control Via

    applying AC power; even if SO is at an Off level). After an On to Off transition it is detected, the SO will Enable or Disable the power supply output according to the signal level or the short/open applied to J1. This function is useful for connecting power supplies in a “Daisy-chain” (refer to Section 5.16).

  • Page 46: Ps Ok Signal

    5.10 PS_OK SIGNAL The PS_OK signal indicates the fault condition of the power supply. PS_OK is a TTL signal out- put at J1-16, referenced to IF_COM at J1-2, 3 (Isolated Interface Common). When a fault condi- tion occurs, the PS_OK level is low, with a maximum sink current of 1mA; when no fault condition occurs, the PS_OK level is high with a maximum source current of 2mA.

  • Page 47: Series Operation

    8. Remote/Local: If the last setting was Local Lockout, (latched mode), the supply will return to Remote mode (non-latched). 9. Address setting 10. Baud rate 11. Locked/Unlocked Front Panel (LFP/UFP) (Items 8, 9, 10 are related to Remote Digital Control operation and are explained in Chapter 7) 12.

  • Page 48: Series Connection For Positive And Negative Output Voltage

    Remote programming in series operation for increased output voltage: 1. Programming by external voltage: 2.Using the SO function and PS_OK signal: 3. Programming by external resistor: 4. Programming via the Serial 5.14.2 Series connection for positive and negative output voltage In this mode, two units are configured as a positive and negative output.

  • Page 49: Parallel Operation

    Remote programming in series operation for positive and negative output voltage 1. Programming by external voltage: 2. Using the SO function and PS_OK signal: 3. Programming by external resistor: 4. Programming via the Serial Communication port (RS232/RS485): 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.

  • Page 50: Advanced Parallel Operation

    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 voltage drop.
  • Page 51 3. Master and Slave units default operation a) When a unit is programmed to Slave mode it enters the Remote mode with Local Lockout. In this mode, the front panel controls are disabled to prevent accidental setting change (refer to Sec.

  • Page 52: Daisy Chain Connection

    To J1-10 SLAVE#2 POWER SUPPLY Fig.5-5: Parallel operation with Remote sensing CAUTION Make sure that the connection between –V terminals is reliable to avoid disconnection during operation. Disconnection may cause damage to the power supply. With local sensing it is important to minimize the wire length and resistance. Also the positive and negative wire resistance should be close as possible to each other to achieve current balance be- tween power supplies 5.16 DAISY-CHAIN CONNECTION...

  • Page 53: Unlocked Front Panel

    5.17.1 Unlocked front panel In this mode, the front panel controls are Enabled to program and monitor the power supply pa- rameters. 5.17.2 Locked front panel In this mode the following front panel controls are Disabled: -VOLTAGE and CURRENT encoders. -FOLD button.

  • Page 54: Local/Remote Analog Control

    CHAPTER 6 REMOTE ANALOG PROGRAMMING 6.1 INTRODUCTION The rear panel connector J1 allows the user to program the power supply Output Voltage and Current with an analog device. J1 also provides monitoring signals for Output Voltage and Out- put Current. The programming range and monitoring signals range can be selected between 0- 5V or 0-10V using the setup switch SW1.

  • Page 55: Remote Voltage Programming Of Output Voltage And Current Limit

    6.4 REMOTE VOLTAGE PROGRAMMING OF OUTPUT VOLTAGE AND OUTPUT CURRENT LIMIT To maintain the power supply isolation and to prevent ground loops, use an isolated programming source when operating the power supply via remote analog programming at the J1 connector. Perform the following procedure to set the power supply to Remote Voltage programming: 1.
  • Page 56 6.5 RESISITIVE 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.

  • Page 57: Remote Monitoring Of Output Voltage And Current

    6.6 REMOTE MONITORING OF OUTPUT VOLTAGE AND CURRENT The J1 connector, located on the rear panel provides analog signals for monitoring the Output Voltage and Output Current. Selection of the voltage range between 0-5V or 0-10V is made by setup switch SW1-4. The monitoring signals represent 0 to 100% of the power supply Output Voltage and Output Current.

  • Page 58: Chapter 7 Rs232 & Rs485 Remote Control

    CHAPTER 7 RS232 & RS485 REMOTE CONTROL 7.1 INTRODUCTION This Chapter describes the operation of the Genesys communication port. Details of the initial set-up, operation via RS232 or RS485, the command set and the communication protocol are described in this Chapter. 7.2 CONFIGURATION 7.2.1 Default setting The power supply is shipped with the following settings:...

  • Page 59: Front Panel In Remote Mode

    2. There are two Remote modes: 1. Remote: In this mode, return to local can be made by the front panel REM/LOC or via serial port command RMT 0. Set the unit into Remote mode via serial port RMT 1 command. 2.

  • Page 60: Md Mode Option (Factory Installed)

    7.4 MD MODE OPTION (Factory Installed) 7.4.1 MD Mode Description The GEN supply is capable of operating in a multi drop environment - more than 1 supply con- ducting serial communications on a single serial bus. A maximum of 31 GEN supplies can oper- ate in this single bus.

  • Page 61: Connecting Power Supplies To Rs232 Or Rs485 Bus

    7.5 CONNECTING POWER SUPPLIES TO RS232 OR RS485 BUS 7.5.1 Single power supply 1. Select the desired interface RS232 or RS485 using rear panel setup switch SW1-6 (Section 4-4). -RS232: DOWN position -RS485: UP position 2. Connect rear panel IN connector to the controller RS232 or RS485 port using a suitable shielded cable.

  • Page 62: Multi Power Supply Connection To Rs232 Or Rs485 Bus

    7.5.2 Multi power supply connection to RS232 or RS485 bus Up to 31 units can be connected (daisy chained) to the RS232 or RS485 bus. The first unit con- nects to the controller via RS232 or RS485 and the other units are connected via the RS485 bus. 1.

  • Page 63: Acknowledge

    7.6.6 Acknowledge The power supply acknowledges received commands by returning an “OK” message. If an error is detected the power supply will return an error message. The rules of checksum also apply to the acknowledge. 7.6.7 Error message If an error is detected in command or query, the power supply will respond with an error mes- sage.

  • Page 64: Initialization Control Commands

    7.8.3 Initialization Control Commands Command ADR is followed by address, which can be 0 to 30 and is used to access the ADR n power supply. Clear status. Sets FEVE and SEVE registers to zero (refer to Section 7-11). Reset command. Brings the power supply to a safe and known state: Output voltage: zero, Output current: zero, Output: Off,...
  • Page 65 MC? (See Reads the actual Output Current. Returns a 5 digit string. Note 2) Example: 200A supply sends 000.50, 110.12, 200.00, etc… Display Voltage and Current data. Data will be returned as a string of ASCII characters. A comma will separate the different fields. The fields, in order, DVC? are: Measured Voltage, Programmed Voltage, Measured Current, Pro- grammed Current, Over Voltage Set Point and Under Voltage Set Point.

  • Page 66: Global Output Commands

    Recalls last settings. Settings are from the last power-down or from the last “SAV” Returns the power supply operation mode. When the power supply is On MODE? (OUT 1) it will return “CV” or “CC”. When the power supply is OFF (OUT 0 or fault shutdown) it will return “OFF”.

  • Page 67: Single Byte Commands

    7.10 SINGLE BYTE COMMANDS 7.10.1 General Single byte commands are commands in which all the necessary data for the supply to act upon is contained in a single byte. Single byte commands will be executed immediately by the supply. If the command requires data to be sent to the HOST PC or IEEE Board (see sections 7.10.4 and 7.10.3.1) that response will be transmitted immediately with no delay due to any software overhead.

  • Page 68: Global Commands With Response

    7.10.3 Global commands with response 7.10.3.1 Disconnect from communications Command the supply to end all data transmissions to the HOST PC/IEEE Board and cease its role as the active addressed supply. The HOST PC/IEEE Board will be required to re-send the ‘ADR nn’...

  • Page 69: Addressed Commands Without Response

    7.10.4.4 Test if MD Mode is Installed Send AA Hex followed by the address of the supply in binary. If not installed, the supply will re- turn a ‘1’. If installed, the supply will return a ‘0’. 7.10.5 Addressed commands without response 7.10.5.1 Acknowledge SRQ Send (0xE0 + Address) (1 byte binary - send 2 times sequentially).
  • Page 70 Print Power On Time Retransmit last message Acknowledge Test if MD Mode is Installed Supply Initiated Communications GEN750W models Table 7-5: Current programming range Model Minimum GEN6-100 000.00 GEN8-90 00.00 GEN12.5-60 00.000 GEN20-38 00.000 GEN30-25 00.000 GEN40-19 00.000 GEN60-12.5 00.000 GEN80-9.5 0.000 GEN100-7.5...

  • Page 71: Status Control Commands

    Table 7-6: OVP programming range Model Minimum Rated Output Voltage 12.5 7.10.6 Status Control Commands Refer to Section 7-8 for definition of the registers. Command STT? Reads the complete power supply status. Returns ASCII characters representing the following data, separated by commas: MV<actual (measured) voltage>...

  • Page 72: Conditional Registers

    Command Error (”Cnn”) Execution Error (”Enn”) Query Response (”message”) Command Response (”OK”) Constant Voltage Constant Current No Fault Fault Auto Start Fold Enabled Spare Local Mode Spare AC Fail Over Temperature Foldback (tripped) Over Volt Prot Shut Off (rear panel) Output Off (front panel) Enable Open 7.11.2 Conditional Registers...

  • Page 73: Service Request Enabled And Event Registers

    7.11.2 Conditional Registers (continued) Table 7-8: Fault Condition Register Fault name Fault symbol 0 (LSB) Spare bit SPARE AC Fail Over temperature Foldback FOLD Over volt- Shut Off Output Off 7(MSB) Enable Table 7-9: Status Condition Register Fault name Fault symbol 0 (LSB) Constant Voltage...
  • Page 74 The SRQ message is: “Inn” terminated by CR, where the nn is the power supply address. The SRQ will be generated either in Local or Remote mode. Refer to Tables 7-10 to 7-13 for details of the Enable and Event registers. 1.
  • Page 75 3. Status Enable Register The Status Enable Register is set by the user to Enable SRQs for changes in power supply status. Table 7-12: Status Enable Register Status name 0 (LSB) Constant Voltage Constant Current No Fault Fault active Auto-Restart enabled Fold enabled Spare 7 (MSB)

  • Page 76: Serial Communication Test Set-Up

    7.12 SERIAL COMMUNICATION TEST SET-UP Use the following instructions as basic set-up to test the serial communication operation. 1.Equipment: PC with Windows Hyper Terminal, software installed, Genesys Power supply, RS232 cable. 2. PC set-up: 2.1 Open Hyper Terminal……………………. New Connection. 2.2 Enter a name 2.3 Connect to…………………………………...

  • Page 77: Specifications

    CHAPTER 8 ISOLATED ANALOG PROGRAMMING OPTION 8.1 INTRODUCTION Isolated Analog Programming is an internal Option Card for analog programming of the Gene- power supply series. The option is factory installed and cannot be obtained with a GPIB (IEEE-488) Interface. Output Voltage and Output Current can be programmed and readback through optically isolated signals which are isolated from all other ground references in the power supply.

  • Page 78: Isolated Programming & Monitoring Connector

    8.3 ISOLATED PROGRAMMING & MONITORING CONNECTOR Refer to Table 8-1 for detailed description of the rear panel Isolated Programming & Monitoring connector. To provide the lowest noise performance, it is recommended to use shielded-twisted pair wiring. Refer to Fig.8-1 for description of the Isolated Analog Programming & Monitoring connector. Isolated programming plug P/N: MC1.5/8-ST-3.81, Phoenix.

  • Page 79: Setup And Operating Instructions

    8.4 SETUP AND OPERATING INSTRUCTIONS To prevent damage to the unit, do not program the output voltage and current to higher than the power supply rating. 8.4.1 Setting up the power supply for 0-5V/0-10V Isolated Programming and Monitoring Perform the following procedure to configure the power supply: 1.

  • Page 80: Chapter 9 Maintenance

    In case of failure, unusual or erratic operation of the unit, contact a TDK-Lambda Americas Inc. sales or service facility nearest you. Please refer to the TDK-Lambda Americas Inc. sales offices addresses listing on the back cover of this User’s Manual.
  • Page 81 SYMPTOM Output is present momentarily but shuts off quickly.The display indicates “OUP”. Output Voltage will not adjust. Front panel CC LED is On. Output Voltage will not adjust Front panel CV Led is Output Current will not adjust. Front panel CV LED is on.

  • Page 82: Fuse Rating

    9.7 FUSE RATING There are no user replaceable fuses in the power supply. Internal fuses are sized for fault protec- tion and if a fuse was opened, it would indicate that service is required. Fuse replacement should be made by qualified technical personnel. Refer to Table 9-2 for a listing of the fuses. Table 9-2: Internal fuses Fuse designation F301...

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