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Lambda Genesys GENH 750W Technical Manual

Other manuals for Genesys GENH 750W: Technical Manual
Manual is about: Half Rack

Summary of Genesys GENH 750W

  • Page 1

    Technical manual for genesys tm 750w half rack programmable dc power supplies document: 83-507-5002 rev a lambda americas 405 essex road, neptune, nj 07753 tel: (732) 922-9300 fax: (732) 922-9334 web: www.Lambda-emi.Com.

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    83-000-015 rev. C.

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    83-507-5002 rev. A genesys™ manual supplement for units equipped with “iemd” option. Also refer to manual 83-030-200 iemd..

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    83-507-5002 rev. A table of contents warranty pg. 1 safety instructions pg. 2 german safety instructions pg. 4 chapter 1 general information pg. 6 1.1 user manual content pg. 6 1.2 introduction pg. 6 1.2.1 general description pg. 6 1.2.2 models covered pg. 6 1.2.3 features and options pg. 6 1.2.4 mu...

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    83-507-5002 rev. A table of contents 3.8.8 address setting pg. 18 3.8.9 baud rate setting pg. 18 3.9 connecting the load pg. 18 3.9.1 load wiring pg. 18 3.9.2 current carrying capacity pg. 18 3.9.3 wire termination pg. 19 3.9.4 noise and impedance effects pg. 20 3.9.5 inductive loads pg. 20 3.9.6 ma...

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    83-507-5002 rev. A table of contents 5.15 parallel operation pg. 41 5.15.1 basic parallel operation pg. 41 5.15.2 advanced parallel operation pg. 42 5.16 daisy-chain shut-off connection pg. 44 5.17 front panel locking pg. 44 5.17.1 unlocked front panel pg. 45 5.17.2 locked front panel pg. 45 chapter...

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    83-507-5002 rev. A table of contents 7.10.5 addressed commands without response pg. 61 7.10.6 status control commands pg. 63 7.11 status, error and srq registers pg. 63 7.11.1 general description pg. 63 7.11.2 conditional registers pg. 64 7.11.3 service request enabled and event registers pg. 65 7.1...

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    83-000-016 rev. D 1 warranty this lambda americas inc. Product is warranted against defects in materials and workmanship for a period of five years from date of shipment. During the warranty period, lambda americas inc. Will, at it’s option, either repair or replaces products, which prove to be defe...

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    83-000-018 rev. D 2 safety instructions caution the following safety precautions must be observed during all phases of operation, service and repair of this equipment. Failure to comply with the safety precautions or warnings in this document violates safety standards of design, manufacture and inte...

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    83-000-018 rev. D 3 safety instructions environmental conditions the genesys tm 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 ...

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    83-000-018 rev. D 4 sicherheits-installations anweisungen vorsicht vor anschluss an das netz ist die aufstellanleitung wie nachstehend beschrieben zu beachten. Die nachstehenden sicherheitsanweisugen mussen während aller phasen des betriebes, des services und der reparatur dieser ausrustung beachtet...

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    83-000-018 rev. D 5 anderungen and bauteileersatz ersatzteilaustausch – und anderungen durfen nur von autorisiertem lambda americas inc. Service-personen durchgefuhrt werden. Fur reparaturen oder anderungen ist das gerat zur lambda americas inc. Service-niederlassung zu retournieren. Sicherheits-hin...

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    83-507-5002 rev. A 6 chapter 1 general information 1.1 user manual content this user’s manual contains the operating instructions, installation instructions and specifications of the genesys tm genh 750w power supply series. The instructions refer to the standard power supplies, including the built-...

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    83-507-5002 rev. A 7 ∗ 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 lif...

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    83-507-5002 rev. A 8 1.2.9 cooling and mechanical construction the genesys tm 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. The genesys tm power supplies have ...

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    83-507-5002 rev. A 9 chapter 2 specifications.

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    83-507-5002 rev. A 10

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    83-507-5002 rev. A 11 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 100-24...

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    83-507-5002 rev. A 12 2.13 genesys tm genh 750w power supplies outline drawings.

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    83-507-5002 rev. A 13 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 tm power sup- plies are described in chapter 7. 3.2 preparation f...

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    83-507-5002 rev. A 14 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 ...

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    83-507-5002 rev. A 15 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 min...

  • Page 23

    83-507-5002 rev. A 16 1 remote (+) sense 2 local (+) sense 3 not connected 4 local (-) sense 5 remote (-) sense 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. The iec connector also provides the safety ground co...

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    83-507-5002 rev. A 17 4. Turn the front panel ac power switch to on. 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 ...

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    83-507-5002 rev. A 18 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. Adjust the current encoder to set the output current setting to approx. 10% of the unit rating. 3. M...

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    83-507-5002 rev. A 19 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. Please refer to tables 3-2 and 3-3 for minimum wire length (to limit voltage drop) in american and european di...

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    83-507-5002 rev. A 20 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...

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    83-507-5002 rev. A 21 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. Ensur...

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    83-507-5002 rev. A 22 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. Tightening torque: 6.5-7.0 lb...

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    83-507-5002 rev. A 23 - - rem.Sense local sense local sense rem.Sense + + load lines, twisted pair, shortest length possible. +v -v load + power supply 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 l...

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    83-507-5002 rev. A 24 - - rem.Sense local sense local sense rem.Sense + + load lines, twisted pair, shortest length possible. +v -v load#1 + load#3 + load#2 + power supply fig.3-12: multiple loads connection, radial distribution, local sense 3.9.10 multiple load connection with distribution terminal...

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    83-507-5002 rev. A 25 warning output terminal grounding 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 ...

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    83-507-5002 rev. A 26 3.10.3 remote sensing use remote sense where the load regulation at the load end is critical. In remote sense, the power supply will compensate for voltage drop on the load wires. Refer to the power supply specifications for the maximum voltage drop on load wires. The voltage d...

  • Page 34

    83-507-5002 rev. A 27 chapter 4 front and rear panel controls and connectors 4.1 introduction the genesys tm 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 foll...

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    83-507-5002 rev. A 28 table 4-1: front panel controls and indicators number control/indicator description section 4 current display 4 digit, 7 segment led display. Normally displays the output current. When the prev button is pressed, the display indi- cates the programmed setting of output current....

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    83-507-5002 rev. A 29 number control/indicator description section 15 prev indicator green led, lights when prev button is pressed 16 fine button voltage and current fine/coarse adjustment control. Op- erates as a toggle switch. In fine mode, the voltage and current encoders operate with high resolu...

  • Page 37

    83-507-5002 rev. A 30 number item description section 4 remote out connector rj-45 type connector, used for daisy-chaining power supplies to form a serial communication bus. 7.3 7.5 5 j1 analog remote connector connector for remote analog interface. Includes output voltage and current programming an...

  • Page 38

    83-507-5002 rev. A 31 position function down (factory default) up sw1-1 output voltage remote analog programming output voltage programmed by front panel output voltage programmed by remote analog voltage sw1-2 output current remote analog programming output current programmed by front panel output ...

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    83-507-5002 rev. A 32 fig.4-4: j1 connector terminals and functions 14 15 16 17 18 19 20 21 22 23 24 25 1 2 3 4 5 6 7 8 10 11 12 13 9 same ground as p/s negative sense (-s) isolated from ps outputs, same ground as rs232/rs485 imon ipgm_rtn vpgm_rtn loc/rem signal if_com if_com ena_in vmon com cv/cc ...

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    83-507-5002 rev. A 33 table 4-4: j1 connector terminals and functions j1 contact signal name function reference j1-1 ena_in enable/disable the power supply output by dry-contact (short/open) with ena_out. Sec. 5.8 j1-2 j1-3 if_com isolated interface common. Return for the so control, ps_ok signal an...

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    83-507-5002 rev. A 34 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...

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    83-507-5002 rev. A 35 -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 loa...

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    83-507-5002 rev. A 36 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 wh...

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    83-507-5002 rev. A 37 caution do not connect the cv/cc signal to a voltage source higher than 30vdc. Always connect the cv/cc signal to voltage source with a series resistor to limit the sink current to less than 10ma. Applied to j1. This function is useful for connecting power supplies in a “daisy-...

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    83-507-5002 rev. A 38 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; wh...

  • Page 46

    83-507-5002 rev. A 39 warning when power supplies are connected in series, and the load or one of the output terminals is grounded, no point may be at a greater potential of +/-60vdc from ground for models up to 60vdc rated output and +/-600vdc from ground for models >60vdc rated output. When using ...

  • Page 47

    83-507-5002 rev. A 40 fig.5-3: series connection for positive/negative output voltages +s + - -s -ls +ls power supply +s + + - - -s -ls +ls power supply (*) (*) (*) diodes are user supplied. 1. Programming by external voltage: the analog programming circuits of this power sup- ply are referenced to ...

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    83-507-5002 rev. A 41 1. Programming by external voltage: the analog programming circuits of this power supply are referenced to the negative output po- tential. Therefore, the circuits used to control each series connected unit must be separated and floated from each other. 2. Using the so function...

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    83-507-5002 rev. A 42 up to 95% of its current rating because of the imbalance which may be caused by cabling and connection voltage drop. 3. Setting over voltage protection the master unit ovp setting should be programmed to the desired ovp level. The ovp set- ting of the slave units should be prog...

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    83-507-5002 rev. A 43 fig.5-4: parallel connection with local sensing master power supply slave#1 power supply j1-25 j1-10 p ipgm + v - v + v - v load as short as possible twisted pair +s -s j1-8 j1-12 to j1-10 slave#2 power supply -s -ls +ls +s +ls -ls fig.5-5: parallel operation with remote sensin...

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    83-507-5002 rev. A 44 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 be- tween power supplies fig.5-6: daisy-chain connection power supply # 1 j1-2...

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    83-507-5002 rev. A 45 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. -out button ...

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    83-507-5002 rev. A 46 caution com (j1-12), vpgm_rtn (j1-22) and ipgm_rtn (j1-23) terminals of j1 connect internally to the -sense potential (-s). Do not connect these terminals to any potential other than -sense (-s), as it may damage the power supply. Chapter 6 remote analog programming 6.1 introdu...

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    83-507-5002 rev. A 47 caution 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 programmin...

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    83-507-5002 rev. A 48 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 voltag...

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    83-507-5002 rev. A 49 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 vo...

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    83-507-5002 rev. A 50 chapter 7 rs232 & rs485 remote control 7.1 introduction this chapter describes the operation of the genesys tm 3300w 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...

  • Page 58

    83-507-5002 rev. A 51 note tx and rx are used for rs232 communication. Txd +/- and rxd +/- are used for rs485 communication. Refer to rs-232 and rs-485 cabling and connection details. 2. There are two remote modes: 1. Remote: in this mode, return to local can be made by the front panel rem/loc or vi...

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    83-507-5002 rev. A 52 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 conducting serial communications on a single serial bus. A maximum of 31 gen supplies can operate in this single bus. Upon po...

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    83-507-5002 rev. A 53 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 ...

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    83-507-5002 rev. A 54 note the address (adr n) command must return an “ok” response before any other commands are accepted. 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...

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    83-507-5002 rev. A 55 stat?$7b 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 co...

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    83-507-5002 rev. A 56 3. Output control 4. Status control 7.8.3 initialization control commands # command description 1 adr n adr is followed by address, which can be 0 to 30 and is used to access the power supply. 2 cls clear status. Sets feve and seve registers to zero (refer to section 7-11). 3 r...

  • Page 64

    83-507-5002 rev. A 57 note 1) lowing examples for pc n format: pc n format: pc 10, pc 10.0, pc 010.00, etc… 5 pc? Reads the output current setting. Returns the string “n” where “n” is the ex- act string sent in the pc n command. When in local mode, returns the preview (front panel) settings in a 5 d...

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    83-507-5002 rev. A 58 23 ast? Returns the string auto-restart mode status. 24 sav saves present settings. The settings are the same as power-down last set- ting. These settings are erased when the supply power is switched off and the new “last settings” are saved. 25 rcl recalls last settings. Setti...

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    83-507-5002 rev. A 59 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 h...

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    83-507-5002 rev. A 60 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 re- quired to re-send the ‘adr nn’ command t...

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    83-507-5002 rev. A 61 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 sup- ply will return 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 + addr...

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    83-507-5002 rev. A 62 returned. Retransmit last message 110x xxxx last message retransmit last response from a command. X xxxx is the address of the supply in binary. Acknowledge srq 111x xxxx none acknowledge srq. If retransmis- sion of srq is enabled, it will re- main enabled for the next srq. X x...

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    83-507-5002 rev. A 63 8 0.5 10.0 8 0 7.60 12.5 1.0 15.0 12.5 0 11.9 20 1.0 24.0 20 0 19.0 30 2.0 36.0 30 0 28.5 40 2.0 44.0 40 0 38.0 60 5.0 66.0 60 0 57.0 80 5.0 88.0 80 0 76.0 100 5.0 110.0 100 0 95.0 150 5.0 165.0 150 0 142 300 5.0 330.0 300 0 285 600 5.0 660.0 600 0 570 7.10.6 status control com...

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    83-507-5002 rev. A 64 srq messages response messages command error (”cnn”) execution error (”enn”) query response (”message”) command response (”ok”) cv cc nflt flt ast fde 0 lcl cv cc nflt flt 0 0 0 lcl 0 0 0 status registers condition enable event constant voltage constant current no fault fault a...

  • Page 72

    83-507-5002 rev. A 65 7.11.2 conditional registers (continued) 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 1 ac fail ac ac fail has occurred. The ac input returns to normal. 2 over temperatu...

  • Page 73

    83-507-5002 rev. A 66 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. Fault enable register the fault enable register is set ...

  • Page 74

    83-507-5002 rev. A 67 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 bit status name status sym- bol bit set condition bit reset condition 0 (lsb) constant voltage cv 1 constant current cc ...

  • Page 75

    83-507-5002 rev. A 68 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 tm power supply, rs232 cable. 2. Pc set-up: 2.1 open hyper terminal……………………....

  • Page 76

    83-507-5002 rev. A 69 chapter 8 isolated analog programming option 8.1 introduction isolated analog programming is an internal option card for analog programming of the gene- sys tm power supply series. The option is factory installed and cannot be obtained with a gpib (ieee-488) interface. Output v...

  • Page 77

    83-507-5002 rev. A 70 caution when the isolated analog option is installed, do not apply any signals to the non-isolated vpgm and ipgm (j1-9 and j1-10) pins. All other j1 features may be used normally. Refer to section 4.5 for a description of j1 features. 8.3 isolated programming & monitoring conne...

  • Page 78

    83-507-5002 rev. A 71 caution to prevent damage to the unit, do not program the output voltage and current to higher than the power supply rating. Note j1-8 and j1-12 must be shorted together with a wire jumper. Note j1-8 and j1-12 must be shorted together with a wire jumper. Note sw1 position 3 and...

  • Page 79

    83-507-5002 rev. A 72 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 ser- vice facility. Refer to the add...

  • Page 80

    83-507-5002 rev. A 73 symptom check action ref output voltage will not adjust. Front panel cc led is on. Is the unit in constant current mode? Check output current setting and load current. 5.2.1 5.2.2 output voltage will not adjust front panel cv led is on. Check if output voltage is adjusted above...

  • Page 81

    83-507-5002 rev. A 74 table 9-2: internal fuses fuse designation 750w model f301 f302, f304 f31, f32 20a 250vac, fast 2a 400vdc, normal not used.