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GENH Series Programmable DC Power Supplies 750W in a 1U half-rack size Built in RS-232 & RS-485 Interface Advanced Parallel Operation Optional Interface: Compliant LAN IEEE488.2 SCPI (GPIB) Multi-Drop Isolated Analog Programming...
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SUPPLIES USER MANUAL GENESYS GENH 750W SERIES POWER SUPPLIES USER MANUAL This Manual Covers Models: GENH6-100 GENH100-7.5 GENH30-25 GENH8-90 GENH150-5 GENH40-19 GENH12.5-60 GENH300-2.5 GENH60-12.5 GENH20-38 GENH600-1.3 GENH80-9.5 This Manual Covers Models: IA598-04-01 Rev.G GENH6-100 GENH100-7.5 GENH30-25 GENH8-90 GENH150-5 GENH40-19 GENH12.5-60 GENH300-2.5...
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DECLARATION OF CONFORMITY GEN750/1500/GENH series We, TDK-Lambda Ltd., located at Haharoshet St. 56 Industrial Zone P.O.B. 500 Karmiel, Israel declare under our sole responsibility that the GEN750/1500/GENH series as detailed on the products covered sheet comply with the provisions of the following European Directive and are eligible to bear the CE mark:...
TDK-Lambda Ltd. authorised personnel. TDK-Lambda Ltd. does not warrant the buyers circuitry or malfunctions of TDK-Lambda Ltd. products resulting from the buyer ’s circuitry. Furthermore, TDK-Lambda Ltd. does not warrant any damage occurring as a result of the buyer ’s circuitry or the buyer ’s - supplied products.
Safety - Part 1: General requirements. A “Declaration of Conformity” in accordance with the preceding directives and standards has been made and is on file at our EU representative TDK-Lambda Limited, located at Kingsley Avenue, Ilfracombe, Devon EX34 8ES, UK.
SAFETY INSTRUCTIONS. ENVIRONMENTAL CONDITIONS The Genesys power supply series safety approval applies to the following operating conditions: *Indoor use *Ambient temperature: 0 C to 50 C *Maximum relative humidity: 90% (no condensation) *Altitude: up to 3000m *Pollution degree 2 CAUTION Risk of Electrical Shock. Instruction manual symbol.
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Einrichtung zu keiner Gefahr im Sinne dieser Norm fuhren kann, sind in diesem Handbuch beschrieben. TDK-Lambda Ltd.ist nicht verantwortlich fur Fehler, die bei der Inbetriebnahme des Gerätes auf Grundlage dieser Sicherheitsanweisungen durch den Betreiber entstehen können.
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Ersatzteilaustausch - und Anderungen durfen nur von autorisierte TDK-Lambda Ltd. SERVICE- PERSONEN durchgefuhrt werden. Fur Reparaturen oder Anderungen ist das Gerät zur TDK-Lambda Ltd. Service-Niederlassung zu retournieren. SICHERHEITS-HINWEISE Umweltbedingungen Die Genesys -Stromversorgungs-Serie ist gemäss den Sicherheitsabnahmen fur folgende Betriebsbedingungen zugelassen.
(RS232/485). GPIB programming and Isolated-Analog programming/monitoring are optional. 1.2.2 Models covered by this manual Model Voltage Current range(V) range(A) 0-100 GENH6-100 0-90 GENH8-90 0-12.5 0-60 GENH12.5-60 0-20 0-38 GENH20-38 0-30...
* 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 ventillation holes at the top and bottom surface of the power supply.
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 air flow into the power supply via the front panel and out of the power supply via the rear panel.
2.6 PROGRAMMING AND READBACK (RS232/485, Optional IEEE Interface) 1.Vout programming accuracy 0.05%+0.05% of rated output voltage 2.Iout programming accuracy 0.1%+0.1% of rated output current 3.Vout programming resolution 0.012% of full scale 4.Iout programming resolution 0.012% of full scale 5.Vout readback accuracy 0.1%+0.1% of rated output voltage 6.Iout readback accuracy 0.1%+0.3% of rated output current...
NOTES: *1: Minimum voltage is guaranteed to maximum 0.2% of the rated output voltage. *2: Minimum current is guaranteed to maximum 0.4% of the rated output current. *3: For cases where conformance to various safety standards (UL, IEC etc.) is required, to be described as 100-240Vac (50/60Hz).
CHAPTER 3 INSTALLATION 3.1 GENERAL This chapter contains instructions for initial inspection, preparation for use and repackaging for shipment. Connection to PC, setting the communication port and linking Genesys power supplies are described in Chapter 7. NOTE Genesys power supplies generate magnetic fields which might affect the operation of other instruments.
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 increassing the 1U height of the units.
3.4.3 GENH/RM Rack Mounting outline drawings: 495.0 1.0 482.0 1.0 467.5 1.0 497.5 1.0 510.5 1.0 Fig.3-3 GENH/RM Rack Mounting outline 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.
WARNING Some components inside the power supply 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.
2. Connect the unit to an AC source as described in section 3.7. 3. Connect a DVM with appropriate cables for the rated voltage to the output terminals. 4. Turn the front panel AC power switch to On. 3.8.3 Constant Voltage Check 1.
3.8.7 Foldback Check WARNING 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.
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 recommended to minimize the voltage drop (1V typical maximum) to prevent excessive output power consum- ption from the power supply and poor dynamic response to load changes.
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.
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 suitable for applications where load regulation is less critical. Load Power Supply...
Load lines, twisted pair, shortest length possible. Load#1 Power Supply Load#2 Rem.sense Local sense Load#3 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 a pair of twisted and/or shielded wires.
WARNING OUTPUT TERMINAL GROUNDING There is a potential shock hazard at the RS232/485 and the IEEE ports when using power supplies with rated or combined voltage greater than 400V with the Positive Output of the power supplies is grounded. Do not connect the Positive Output to ground when using the RS232/485 or IEEE under the above conditions.
3.10.3 Remote sensing WARNING There is a potential shock hazard at the sense point when using power supply with a rated output voltage greater than 40V. Ensure that the connections at the load end are shielded to prevent accidental contact with hazardous voltages. CAUTION When using shielded sense wires, ground the shield in one place only.
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 allow 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.
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Table 4-1: Front Panel controls and indicators Number Control/Indicator Description Section 4 digit, 7-segment LED display. Normally displays the output current. When the PREV button is pressed, the CURRENT display display indicates the programmed setting of output current. CURRENT indicator Green LED, lights for Constant-Current mode operation. High resolution rotary encoder for adjusting the Output 5.2.2 CURRENT control...
Table 4-1: Front Panel controls and indicators Number Control/Indicator Description Section PREV indicator Green LED, lights when PREV button is pressed. Voltage and Current Fine/Coarse adjustment control. Operates as a toggle switch. In Fine mode, the VOLTAGE and CURRENT encoders operate with high FINE button resolution and in Coarse mode with lower resolution (approx.
Table 4-2: Rear panel connections and controls Number Item Description Section Remote Out RJ-45 type connector, used for chaining power supplies to form connector a serial communication bus. Connector for remote analog interface. Includes output voltage and Programming current limit programming and monitoring signals, Shut-off control (electrical signal), Enable/Disable control (dry-contact), power Monitoring supply ok (PS_OK) signal and operation mode (CV/CC) signal.
4.5 REAR PANEL J1 PROGRAMMING AND MONITORING CONNECTOR The J1 Programming and Monitoring connector is a DB25 subminiature connector located on the power supply rear panel. Refer to Table 4-4 for description of the connector functions. The power supply default configuration is Local operation which does not require connections to J1. For remote operation using J1 signals use the plug provided with power supply or equivalent type.
CHAPTER 5 LOCAL OPERATION 5.1 INTRODUCTION This Chapter describes the operating modes that are not involved in programming and monitoring the power supply via its serial communication port (RS232/RS485) or by remote analog signals. 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.
- 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 programmed current limit for 5 seconds after the adjustment has been completed, and then will return to show the actual load current.
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).
When the unit is shut-off by J1 signal, the VOLTAGE display will show “SO” to indicate the unit state. J1 contact 15 is the SO signal input and contacts 2 and 3, IF_COM, are the signal return (connected internally). Contacts 2,3 and 15 are optically isolated from the power supply output. The SO control logic can be selected by the rear panel SW1 Setup switch.
5.11 SAFE START AND AUTO-RESTART MODES When turning on the power supply AC On/Off, it can start to its last setting of Output Voltage and Current limit with the output enabled (Auto-restart) or start with the output disabled (Safe mode). Press and hold the OUT button to select between Safe start and Auto-restart modes.
CAUTION Do not connect power supplies from different manufacturers in series or in parallel. 5.14.1 Series connection for increased output voltage In this mode, two units are connected so that their outputs are summed. Set the current limit of each power supply to the maximum that the load can handle without damage. It is recommended that diodes be connected in parallel with each unit output to prevent reverse voltage during start up sequence or in case one of the units shuts down.
Programming by external resistor is possible . Refer to 3. Programming by external resistor: section 6-5 for details. 4. Programming via the Serial The communication port is referenced to the IF_COM which is isolated from the power supply output Communication port (RS232/RS485): potential.
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 remaining units are slaves. The slave units are analog programmed by the master unit. In remote digital operation, only the master unit can be programmed by the computer while the slave units may be connected to the computer for voltage, current and status readback only.
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2. Setting the units as Master or Slave a) Depress and hold the FINE button for 3 seconds. The Master/Slave configuration will be displayed on the Current Display. Rotate the CURRENT encoder to obtain the desired mode. Refer to Table 5-4 for the CURRENT display and modes of operation. CURRENT Display Operating Mode Single supply (default)
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NOTE NOTE 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 between power supplies. Twisted CAUTION pair Make sure that the As short as possible connection between -Vo...
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 limit with an analog device. J1 also provides monitoring signals for output voltage and output current. The programming range and monitoring signals range can be selected between 0-5V or 0-10V using the setup switch SW1.
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6.4 REMOTE VOLTAGE PROGRAMMING OF OUTPUT VOLTAGE AND CURRENT LIMIT CAUTION To maintain the isolation of power supply and prevent ground loops, use an isolated programming source when operating the power supply via remote analog programming at J1 connector. Perform the following procedure to set the power supply to Remote Voltage programming : 1.
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6.5 RESISTIVE 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.
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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.The monitor outputs have 500 ohm series output resistance.
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CHAPTER 7 RS232 & RS485 REMOTE CONTROL 7.1 INTRODUCTION This chapter describes the operation of the Genesys 750W and 1500W power supplies via the serial 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 setting:...
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2. There are two Remote modes: In this mode, return to local can be made by the front panel REM/LOC or via 1. Remote: serial port command RMT 0. Set the unit into Remote mode via serial port RMT 1 command. 2.
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7.4.2 Multi power supply connection to RS232 or RS485 bus Daisy-chain up to 31 units can be connected to RS232 or RS485 bus. The first unit connects to the controller via RS232 or RS485 and the other units are connected with RS485 bus. 1.
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7.5.7 Error message If an error is detected in a command or query, the power supply will respond with an error message. Refer to section 7.6 for details. 7.5.8 Backspace The backspace character (ASCII 8) clears the last character sent to the power supply. 7.6 ERROR MESSAGES The power supply will return error messages for illegal commands and illegal programming parameters.
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7.7.3 Initialization control commands Command Description 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 7-8). Reset command.
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7.7.5 Output control commands-cont Description # Command Reads the actual output current. Returns 5 digits string. Example: 200A supply sends 000.50, 110.12, 200.00, etc... (See Note 2) Display Voltage and Current data. Data will be returned as a string of ASCII characters. A DVC? comma will separate the different fields.
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NOTES: 1. In Advanced parallel mode (refer to Sec. 5.15.2), “n” is the total system current. 2. In Advanced parallel mode, “MC?” returns the Master unit current multiplied by the number of slave units+1. 7.7.6 Global output commands 1. General All supplies, even if not the currently addressed supply, receiving a global command will execute the command.
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7.8 STATUS, ERROR AND SRQ REGISTERS 7.8.1 General This section describes the various status error and SRQ registers structure. The registers can be read or set via the RS232/485 commands. When using the IEEE option, refer to the user manual for Genesys Power Supply IEEE Programming interface.
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7.8.2 Conditional registers Table 7-8: Fault Condition Register BIT Fault name Fault symbol Bit Set condition Bit Reset condition 0 (LSB) Spare bit SPARE Fixed to zero Fixed to zero AC Fail The AC input returns to normal. AC fail has occurred. The power supply cools down.
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Refer to Tables 7-10 to 7-13 for details of the Enable and Event registers. 1.Fault Enable Register The Fault Enable Register is set to the enable faults SRQs. Table 7-10: Fault Enable Register Enable Bit reset condition Fault symbol Bit Set condition bit name 0 (LSB) Spare bit...
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3.Status Enable register The Status Enable Register is set by the user to enable SRQs from changes in power supply status. Table 7-12: Status Enable Register Bit reset condition Status symbol Bit Set condition Status name 0 (LSB) Constant Voltage User command: "SENA nn"...
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7.9 SERIAL COMMUNICATION TEST SET-UP Use the following instructions as basic set-up to test the serial communication operation. PC with Windows Hyper Terminal, private edition, software installed, Genesys 1.Equipment: power supply, RS232 cable. 2.1 Open Hyper Terminal.......New Connection. 2.PC set-up: 2.2 Enter a name 2.3 Connect to........Direct to Com1 or Com 2 2.4 Configure port properties:...
CHAPTER 8 ISOLATED ANALOG PROGRAMMING OPTION 8.1 INTRODUCTION Isolated Analog Programming is an internal option card for analog programming of the Genesys power supply series. The option is factory installed and cannot be obtained with GPIB (IEEE) Interface. Output Voltage and Current Limit can be programmed and readback through optically isolated signals which are isolated from all other ground references in the power supply.
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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 connector. Isolated programming plug P/N: MC1.5/8-ST-3.81, Phoenix.
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8.4 SETUP AND OPERATING INSTRUCTIONS CAUTION To prevent damage to the unit, do not program the output voltage and current to higher then the power supply rating. 8.4.1 Setting up the power supply for 0-5/0-10V Isolated Programming and Monitoring Perform the following procedure to configure the power supply: 1.
CHAPTER 9 MAINTENANCE 9.1 INTRODUCTION This chapter provides information about maintenance, calibration and troubleshooting. 9.2 UNITS UNDER WARRANTY Units requiring repair during the warranty period should be returned to a Lambda authorized service facility. Refer to the addresses listing on the back cover of this manual. Unauthorized repairs performed by other than the authorized service facilities may void the warranty.
SYMPTOM CHECK REF. ACTION Output is present momentarily Is the power supply Check if the positive or 3.9.6 but shuts off quickly. the display configured to Remote negative load wire is loose. 3.9.8 indicates "OUP". sense? 5.2.1 Output voltage will not adjust. Is the unit in constant current Check current limit setting Front panel CC LED is on.
USER MANUAL INDEX 49, 50 ac cables 8, 15 ID control 49, 50 ac fail initialization TX(RS232) accessories installation acknowledge isolated address 18, 48 under voltage limit 17, 36 adjustment auto-restart 32, 45, 46 16, 25 volts display back space baud rate 18, 48 warranty...
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