¸HMP Series Power supply User Manual *5800449202* Version 02 User Manual Test & Measurement 5800449202 25 General remarks regarding the CE marking General Information Regarding the CE Marking ROHDE & SCHWARZ measuring instruments comply with regulations of the EMC Directive. ROHDE & SCHWARZ is basing the conformity assessment on prevailing generic and product standards. In cases with potentially different thresholds, ROHDE & SCHWARZ instruments apply more rigorous test conditions. Thresholds for business and commercial sectors as well as small business are applicable for interference emission (class 1B). As to the interference immunity, the standard thresholds for the industrial sector apply. Measurement and data lines connected to the measuring instrument significantly affect compliance with specified thresholds. Depending on the respective application, utilized lines may differ. In regards to interference emission and immunity during measurements, it is critical that the following terms and conditions are observed: General remarks regarding the CE marking 1. Data Cables It is imperative to only use properly shielded cables when connecting measuring instruments and interfaces to external devices (printers, computers, etc.). Unless the manual prescribes an even shorter maximum cable length, data cables (input/output, signal/control) may not exceed a length of 3m and may not be used outside of buildings. If the instrument interface includes multiple ports for interface cables, only one cable at a time may be connected. Generally, interconnections require double-shielded connecting cables. The double-shielded cable HZ72 (available at ROHDE & SCHWARZ) is well suitable as IEEE bus cable. 2. Signal Cables In general, measuring cables for the transmission of signals between measuring point and measuring instrument should be kept as short as possible. Unless the manual prescribes an even shorter maximum cable length, signal cables (input/output, signal/control) may not exceed a length of 1m and may not be used outside of buil-dings. In general, all signal cables must be used as shielded conductors (coaxial cable- RG58/U). It is important to ensure proper ground connection. Signal generators require the use of double-shielded coaxial cables (RG223/U, RG214/U). 3. Impact on Instruments General remarks regarding the CE marking If strong high-frequency electric and magnetic fields are present, it may occur despite diligent measurement setup that unwanted signal units are injected into the instrument via connected cables and lines. This does not result in destruction or shutdown of ROHDE & SCHWARZ instruments. In individual cases, external circumstances may cause minor variations in the display and measuring values beyond the selected specifications. 26 Content Content 1 Important Notes. . . . . . . . . . . . . . . . . . . . . . . . 28 1.1Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 1.2Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 1.3 Setting Up the Instrument. . . . . . . . . . . . . . . . . . . . 28 1.4 Transport and Storage . . . . . . . . . . . . . . . . . . . . . . . 28 1.5 Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . 28 1.6 Intended Operation . . . . . . . . . . . . . . . . . . . . . . . . . 29 1.7 Ambient Conditions . . . . . . . . . . . . . . . . . . . . . . . . . 29 1.8Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 1.9 Warranty and Repair. . . . . . . . . . . . . . . . . . . . . . . . . 29 1.10Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 1.11 Measurement Categories. . . . . . . . . . . . . . . . . . . . . 30 1.12 Switching the Mains Voltage and Replacing a Fuse. . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 1.13 Batteries and Rechargeable Batteries/Cells. . . . . . . 31 1.14 Product Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 2 Description of the Operating Elements. . . . . . 32 3 Brief Description . . . . . . . . . . . . . . . . . . . . . . . 34 4 4.1 4.2 4.3 4.4 4.5 4.5 Operating the R&S®HMP Series. . . . . . . . . . . . 35 Operating the Instrument. . . . . . . . . . . . . . . . . . . . . 35 Selecting the Channels. . . . . . . . . . . . . . . . . . . . . . . 35 Selecting the Output Voltage. . . . . . . . . . . . . . . . . . 35 Adjustable Maximum Values. . . . . . . . . . . . . . . . . . 35 Setting the Current Limit . . . . . . . . . . . . . . . . . . . . . 36 Activating the Channels. . . . . . . . . . . . . . . . . . . . . . 36 5 5.1 Advanced Operating Functions . . . . . . . . . . . . 37 Storing / Recalling of Settings (STORE / RECALL) . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Tracking Function . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Menu Options (MENU Key) . . . . . . . . . . . . . . . . . . . 37 5.2 5.3 6 Remote Control . . . . . . . . . . . . . . . . . . . . . . . . 40 6.1RS-232. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 6.2USB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 6.3 Ethernet (Option HO730/HO732). . . . . . . . . . . . . . . 40 6.4 IEEE 488.2 / GPIB (Option HO740). . . . . . . . . . . . . . 42 7 7.1 7.2 Advanced Applications . . . . . . . . . . . . . . . . . . 43 Compensating for Voltage Drops on the Supply Lines (Sense Mode). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Parallel and Serial Mode. . . . . . . . . . . . . . . . . . . . . . 43 8 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . 44 9Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 9.1 List of figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 9.2Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 27 Important Notes 1 Important Notes 1.1Symbols (1) (2) (3) (4) Symbol 1: Caution - Observe operating instructions Symbol 2: Caution High Voltage Symbol 3: Ground Symbol 4: Ground terminal 1.2Unpacking While unpacking, check the package contents for completeness (measuring instrument, power cable, product CD, possibly optional accessories). After unpacking, check the instrument for mechanical damage occurred during transport and for loose parts inside. In case of transport damage, please inform the supplier immediately. The instrument must not be operated in this case. 1.3 Setting Up the Instrument Fig. 1 Fig. 2 Fig. 3 The instrument can be set up in two different positions: The front support feet are mounted as shown in fig. 1. The front panel of the instrument points slightly upwards (at an angle of approximately 10°). If the front support feet are collapsed (see fig. 2), it is possible to securely stack the instrument with other ROHDE & SCHWARZ instruments. If multiple instruments are stacked, the collapsed support feet are positioned in the locking mechanism of the instrument beneath, preventing unintended movement (see fig. 3). Be sure to never stack more than three measuring instruments as an exceedingly high instrument stack may become instable. Additionally, operating all instruments simultaneously may generate too much heat. 28 1.4 Transport and Storage Please keep the original packaging for possible shipping at a later point. Damage during transport due to inappropriate packaging is excluded from the warranty. The instrument must be stored in dry, closed indoor premises. If the instrument was transported under extreme temperatures, it is advisable to allow a minimum of two hours to reach the appropriate temperature before operating the instrument. 1.5 Safety Instructions This instrument was built in compliance with VDE0411 part 1, safety regulations for electrical measuring instruments, control units and laboratory equipment. It has been tested and shipped from the plant in safe condition. It is in compliance with the regulations of the European standard EN 61010-1 and the international standard IEC 61010-1. To maintain this condition and to ensure safe operation, the user must observe all instructions and warnings given in this operating manual. According to the regulations of protection class 1, all casing and chassis parts are connected to the protective earth conductor during operation. It is prohibited to disconnect the earthed protective connection inside or outside the instrument! If uncertainty exists about the function or safety of the power sockets, the outlets must be examined in accordance with DIN VDE 0100, part 610. ❙❙ The available mains voltage must correspond to the values specified on the instrument label. ❙❙ The instrument may only be opened by fully trained personnel. ❙❙ Prior to opening, the instrument must be turned off and isolated from all circuits. In the following cases, remove the instrument from operation and secure it against unintentional operation: ❙❙ Visible damage to the instrument ❙❙ Cable damage ❙❙ Fuse holder damage ❙❙ Loose parts in the instrument ❙❙ The instrument is no longer working ❙❙ After an extended period of storage under unfavorable conditions (e.g. outdoors or in damp rooms) ❙❙ Rough handling during shipment. Exceeding the Low Voltage Protection! For the series connection of all output voltages, it is possible to exceed the low voltage protection of 42 V. Please note that in this case any contact with live components is life-threatening. It is assumed that only qualified and trained personnel service the power supplies and the connected loads. Prior to switching on the product, it must be ensured that the nominal voltage setting on the product matches the nominal voltage of the AC supply network. If it is necessary to set a different voltage, the power fuse of the product may have to be changed accordingly. Important Notes 1.6 Intended Operation The measuring instrument is intended only for use by personnel familiar with the potential risks of measuring electrical quantities. For safety reasons, the measuring instrument may only be connected to properly installed safety socket outlets. Separating the grounds is prohibited. The power plug must be inserted before signal circuits may be connected. Use the measuring instrument only with original ROHDE & SCHWARZ measuring equipment, measuring cables and power cord. Never use inadequately measured power cords. Before each measurement, measuring cables must be inspected for damage and replaced if necessary. Damaged or worn components can damage the instrument or cause injury. The product may be operated only under the operating conditions and in the positions specified by the manufacturer, without the product's ventilation being obstructed. If the manufacturer's specifications are not observed, this can result in electric shock, fire and/or serious personal injury, and in some cases, death. Applicable local or national safety regulations and rules for the prevention of accidents must be observed in all work performed. The measuring instrument is designed for use in the following sectors: Industry, residential, business and commercial areas and small businesses. The measuring instrument is designed for indoor use only. Before each measurement, you need to verify at a known source if the measuring instrument functions properly. To disconnect from the mains, the low-heat device socket on the back panel has to be unplugged. 1.7 Ambient Conditions Permissible operating temperatures during the operations range from +5 °C to +40 °C. During storage or transportation the temperature may be between –20 °C and +70 °C. In case of condensation during transportation or storage , the instrument will require approximately two hours to dry and reach the appropriate temperature. It can then be operated. The measuring instrument is designed for use in a clean and dry indoor environment. Do not operate with high dust and humidity levels, if danger of explosion exists or with aggressive chemical agents. Any operating position may be used; however adequate air circulation must be maintained. For continuous operation, a horizontal or inclined position (integrated stand) is preferable. The maximum operating altitude for the instrument is 2000 m. Nominal data with tolerance details apply once the ambient temperature of 23 °C has been reached after about 30 minutes. Values without tolerance details are reference values of an average instrument. Do not obstruct the ventilation holes! 1.8 Cooling The heat produced inside the power supply is guided to the exterior via temperature-controlled fan. This fan, combined with a cooling element, is located in a "cooling duct" which is positioned across the instrument. The air is drawn at the left side and exhausted at the right side of the instrument. This helps minimize the dust exposure to the instrument as much as possible. However, it is necessary to ensure that there is sufficient space on both instrument sides for the heat exchange. If the temperature inside the instrument still increases to more than 80°C, a channelspecific overheat protection intervenes. Affected outputs will automatically be switched off. 1.9 Warranty and Repair ROHDE & SCHWARZ instruments are subject to strict quality controls. Prior to leaving the manufacturing site, each instrument undergoes a 10-hour burn-in test. This is followed by extensive functional quality testing to examine all operating modes and to guarantee compliance with the specified technical data. The testing is performed with testing equipment that is calibrated to national standards. The statutory warranty provisions shall be governed by the laws of the country in which the ¸ product was purchased. In case of any complaints, please contact your supplier. The product may only be opened by authorized and qualified personnel. Prior to working on the product or before the product is opened, it must be disconnected from the AC supply network. Otherwise, personnel will be exposed to the risk of an electric shock. Any adjustments, replacements of parts, maintenance and repair may be carried out only by authorized ROHDE & SCHWARZ technical personnel. Only original parts may be used for replacing parts relevant to safety (e.g. power switches, power transformers, fuses). A safety test must always be performed after parts relevant to safety have been replaced (visual inspection, PE conductor test, insulation resistance measurement, leakage current measurement, functional test). This helps ensure the continued safety of the product. 1.10 Maintenance Clean the outer case of the measuring instrument at regular intervals, using a soft, lint-free dust cloth. The display may only be cleaned with water or an appropriate glass cleaner (not with alcohol or other cleaning agents). Follow this step by rubbing the display down with a dry, clean and lint-free cloth. Do not allow cleaning fluid to enter the instrument. The use of other cleaning agents may damage the labeling or plastic and lacquered surfaces. 29 Important Notes Before cleaning the measuring instrument, please make sure that it has been switched off and disconnected from all power supplies (e.g. AC supply network or battery). No parts of the instruments may be cleaned with chemical cleaning agents (such as alcohol, acetone or cellulose thinner)! 1.11 Measurement Categories This instrument is designed for measurements on circuits that are only indirectly connected to the low voltage mains or not connected at all. The instrument is not intended for measurements within the measurement categories II, III or IV; the maximum potential against earth generated by the user must not exceed 150VDC (peak value) in this application. The following information refers solely to user safety. Other aspects, such as the maximum voltage, are described in the technical data and must also be observed. The measurement categories refer to transients that are superimposed on the mains voltage. Transients are short, very fast (steep) current and voltage variations which may occur periodically and non-periodically. The level of potential transients increases as the distance to the source of the low voltage installation decreases. ❙❙ Measurement CAT IV: Measurements at the source of the low voltage installations (e.g. meters) ❙❙ Measurement CAT III: Measurements in building installations (e.g. power distribution installations, power switches, firmly installed sockets, firmly installed engines etc.). ❙❙ Measurement CAT II: Measurements on circuits electronically directly connected to the mains (e.g. household appliances, power tools, etc.) ❙❙ 0 (instruments without measured measurement category): Other circuits that are not connected directly to the mains. 1.12 Switching the Mains Voltage and Replacing a Fuse Switching the Mains Voltage Prior to operating the instrument, please check if the available mains voltage (115 V or 230 V) corresponds to the value indicated on the voltage selector of the instrument. If this is not the case, the main voltage will need to be switched. The voltage selector is located on the back of the instrument (see figure). unit. A fuse may only be replaced if the instrument has been disconnected from the mains first and if the power cable has been removed. The fuse holder and power cable must be undamaged. Use a suitable screwdriver (with a blade width of approximately 2 mm) to push the plastic locking mechanisms to the left and right side of the fuse holder inwards. The insertion point is marked by two slanted guides on the casing. When unlocking the mechanism, the fuse holder will be pushed outwards by compression springs and it can then be removed. The fuses are now accessible and can be removed as necessary. When changing the mains voltage, it is essential to replace the fuse. Otherwise the instrument may be destroyed. Please note that the protruding contact springs must not be deformed. It is only possible to insert the fuse holder if the guide points toward the connector. The fuse holder will be inserted against the spring pressure until both plastic locking mechanisms lock into place. It is hazardous and not permitted to repair a defective fuse or to use other tools to bypass the fuse. Resulting damage to the instrument are not covered by the warranty. Fuse types: Micro fuse 5 x 20 mm slow; 250 V~ IEC 60127-2/5; EN 60127-2/5 R&S®HMP2020 / R&S®HMP2030: Mains voltage Fuse nominal current 115 V 2 x 6 A 230 V 2 x 3.15 A R&S®HMP4030 / R&S®HMP4040: Mains voltage Fuse nominal current 115 V 2 x 10 A 230 V 2 x 5 A 1.13 Batteries and Rechargeable Batteries/Cells If the information regarding batteries and rechargeable batteries/cells is not observed either at all or to the extent necessary, product users may be exposed to the risk of explosions, fire and/ or serious personal injury, and, in some cases, death. Batteries and rechargeable batteries with alkaline electrolytes (e.g. lithium cells) must be handled in accordance with the EN 62133 standard. 1. Cells must not be disassembled, opened or crushed. Fig. 1.1: Voltage selector for the R&S®HMP2030 Replacing a Fuse The input line fuses are accessible externally. The integral plug for a cooling unit and the fuse holder form a single 30 2. Cells and batteries may not be exposed to heat or fire. Storage in direct sunlight must be avoided. Keep cells and batteries clean and dry. Clean soiled connectors using a dry, clean cloth. 3. Cells or batteries must not be short-circuited. Cells or batteries must not be stored in a box or in a drawer where they can short-circuit each other, or where they Important Notes can be short-circuited by other conductive materials. Cells and batteries must not be removed from their original packaging until they are ready to be used. 4. Keep cells and batteries out of reach of children. Seek medical assistance immediately if a cell or battery was swallowed. 5. Cells and batteries must not be exposed to any mechanical shocks that are stronger than permitted. 6. If a cell develops a leak, the fluid must not be allowed to come into contact with the skin or eyes. If contact occurs, wash the affected area with plenty of water and seek medical assistance. 7. Improperly replacing or charging cells or batteries can cause explosions. Replace cells or batteries only with the matching type in order to ensure the safety of the product. 8. Cells and batteries must be recycled and kept separate from residual waste. Cells and batteries must be recycled and kept separate from residual waste. Rechargeable batteries and normal batteries that contain lead, mercury or cadmium are hazardous waste. Observe the national regulations regarding waste disposal and recycling. 1.14 Product Disposal Fig. 1.4: Product labeling in accordance with EN 50419 The Electrical and Electronic Equipment Act implements the following EG directives: ❙❙ 2002/96/EG (WEEE) for electrical and electronic equipment waste and ❙❙ 2002/95/EG to restrict the use of certain hazardous substances iin electronic equipment (RoHS directive). Once its lifetime has ended, this product should be disposed of separately from your household waste. The disposal at municipal collection sites for electronic equipment is also not permitted. As mandated for all manufacturers by the Electrical and Electronic Equipment Act (ElektroG), ROHDE & SCHWARZ assumes full responsibility for the ecological disposal or the recycling at the end-of-life of their products. Please contact your local service partner to dispose of the product. 31 Description of the Operating Elements 2 Description of the Operating Elements Front panel of R&S®HMP2030 (for the R&S®HMP2020, channel 3 is omitted) 1 POWER (key) Power switch to switch the instrument on and off 2 Display (LCD): Parameter display 3 Arrow keys (illuminated): Setting the parameters 4 Knob: for setting and confirming the nominal values 5 CURRENT (key illuminated) Regulating the current setting 6 VOLTAGE (key illuminated) Regulating the output voltage 7 CH1 (key illuminated) Option key channel 1 8 FUSE (key illuminated) Electronic fuse adjustable for each channel 9 TRACK (key illuminated) Activating the tracking function 10 CH2 (key illuminated) Option key channel 2 11 RECALL (key illuminated) Loading stored measuring instrument configurations 12 STORE (key illuminated) Storing measuring instrument configurations 13 CH3 (key illuminated) Option key channel 3 (not available for the HMP2020) 14 REMOTE / LOCAL (key illuminated) Switching between keypad and external control 15 MENU (key illuminated) Accessing the menu options 1 16 OUTPUT (key illuminated) Selected channels may be switched on or off 17 Ground socket (4mm socket) Reference potential connection (connected to protective earth) 18 SENSE (4mm safety sockets; 2 x per channel) Compensating the line resistances 19 CH1 (4mm safety sockets) Output channel 1; 0...32 V / 5 A (HMP2020 0...32 V / 10 A) 20 CH2 (4mm safety sockets) Output channel 2; 0...32 V / 5 A 21 CH3 (4mm safety sockets) Output channel 3; 0...32 V / 5 A (for the HMP2020, this channel is omitted) Rear Panel of R&S®HMP2030 22 Interface HO720 dual interface USB/RS-232 (included in delivery) 23 OUTPUT (plug connections) Rear panel outputs for easy integration into rack systems 24 Voltage selector Selecting the mains voltage 115 V or 230 V 25 Integral plug for a cooling unit with power fuses 22 24 23 Fig. 2.2: Rear panel of R&S®HMP2030 2 3 4 5 7 6 17 18 19 Fig. 2.1: Front panel of R&S®HMP2030 32 18 18 25 20 18 8 10 11 9 18 13 12 21 14 16 15 18 Description of the Operating Elements 1 2 3 4 5 6 7 8 10 9 20 21 22 23 22 24 12 11 22 14 13 16 18 15 17 19 22 25 Fig. 2.3: Front panel of R&S®HMP4040 Front Panel of R&S®HMP4040 (for the R&S®HMP4030, channel 4 is omitted) 1 POWER (key): Power switch to switch the instrument on and off 2 Display (LCD): Parameter display 3 Arrow keys (illuminated): Setting the parameters 4 Knob: for setting and confirming the nominal values 5 Numeric keypad (keys): Setting the nominal values 6 CH1 (key illuminated: Option key channel 1 7 CH2 (key illuminated): Option key channel 2 8 Enter (key): Key to confirm values via keypad 9 CURRENT (key illuminated): Regulating the current setting 10 CH3 (key illuminated): Option key channel 3 11 VOLTAGE (key illuminated): Regulating the output voltage 12 MENU (key illuminated): Accessing the menu options 13 FUSE (key illuminated): Electronic fuse adjustable for each channel 14 CH4 (key illuminated): Option key channel 4 (not available for the HMP4030) 15 TRACK (key illuminated): Activating the tracking function 16 REMOTE (key illuminated): Switching between keypad and external control 17 RECALL (key illuminated): Loading stored measuring instrument configurations 18 OUTPUT (key illuminated): Selected channels may be switched on or off 19 STORE (key illuminated): Storing measuring instrument configurations 20 Ground socket (4mm socket): Reference potential connection (connected to protective earth) 21 CH1 (4mm safety sockets): Outputs channel 1; 0...32 V / 10 A 22 SENSE (4mm safety sockets; 2 x per channel): Compensating the line resistances 23 CH2 (4mm safety sockets): Outputs channel 1; 0...32 V / 10 A 24 CH3 (4mm safety sockets): Outputs channel 3; 0...32 V / 10 A 25 CH4 (4mm safety sockets): Outputs channel 4; 0...32 V / 10 A (for the HMP4030, this channel is omitted) Back Panel of R&S®HMP4040 26 Interface: HO720 dual interface USB/RS-232 (included in delivery) 27 OUTPUT (plug connections): Back panel outputs for easy integration into rack systems 28 Voltage selector: Selecting the mains voltage 115 V or 230 V 29 Integral plug for a cooling unit with power fuses 26 27 28 29 Fig. 2.4: Rear panel of the HMP4040 33 Brief Description 3 Brief Description have freely definable processes implemented for voltage and current, with a timeframe as short as 10 ms. This can be achieved manually by use of the internal EasyArb Editor or via remote interface. The programmable 2-, 3- or 4-channel high performance power supplies are based on a classical transformer concept with high efficiency electronic pre-regulators and secondary linear regulators. This concept allows the instrument to achieve the high output power within a minimum space, high efficiency and lowest residual ripple. Fig. 3.3: Fuse Linking R&S®HMP2030 (top) / R&S®HMP4040 (bottom) Fig. 3.1: R&S®R&S®HMP4030 (3-channel version) Depending on the instrument type, up to 4 galvanically isolated and hence combinable channels are available. The R&S®HMP2030 includes three identical channels with a continuous voltage range of 0 to 32 V that at up to 16 V can be charged with 5 A and at 32 V with as much as 2.5 A using the sophisticated power management. Just like the R&S®HMP2030, the R&S®HMP2020 provides an output power of 188 W; however, aside from the 5.5 V channel, it only has a 32 V channel available to benefit the double output power of up to 10 A. The R&S®HMP4030 includes three identical channels with a continuous voltage range of 0 to 32 V that at up to 16 V can be charged with 10 A and at 32 V with as much as 5 A. Just like the R&S®HMP4030, the R&S®HMP4040 provides an output power of 384 W (160W per channel). Four identical 32 V channels are available. All power supplies feature galvanically isolated, floating overload and short-circuit proof outputs and may be connected in series or in parallel, thus making very high currents and voltages available. The minimum requirement for this are individual electronic fuses (FuseLink) which can be logically linked and which, according to user specifications, will switch off the interlinked channels (for instance, CH1 follows CH2 and CH3 follows CH1 or CH2) in case an error occurs. R&S®HMP2020 and R&S®HMP2030 include a 2-line and 3-line LCD display (240 x 64 pixel. R&S®HMP4030 and R&S®HMP4040 include a 3-line and 4-line LCD display (240 x 128 pixel). The back panel of the instrument (see fig. 3.4) includes additional connections for all cables (including SENSE) to simplify the integration with 19‘‘ rack systems. By default, a dual interface USB/RS-232 (HO720) is included, and optionally, you can choose between a dual interface Ethernet/USB or a GPIB interface (IEEE-488). Fig. 3.4: R&S®HMP4040 terminal strip on the back panel of the instrument Fig. 3.2: Example of an arbitrary function The high adjustment and reverse resolution of up to 1 mV/0.1 mA (R&S®HMP4030/4040 1 mV/0.2 mA) is suitable for applications with extremely high requirements. Additionally, the EasyArb function allows for all channels to 34 Operating the R&S®HMP Series 4 Operating the R&S®HMP Series wise, the instrument will automatically switch back after 5 seconds, without the changes taking effect (see chapter 5.3.7 Key Fallback Time). The nominal value of the output voltage is increased by turning the knob to the right, and it is decreased by turning it to the left. The voltage value is selected individually for each channel. 4.1 Operating the Instrument Prior to operating the instrument for the first time, please be sure to observe the safety instructions mentioned previously! For instance, if the display shows a voltage of 10.028 V (cursor on the 3rd digit from the right), it is possible to press the knob to set the digits to the right of the cursor to 0 (10.000 V) Switch the instrument on by pressing the POWER key. When switching the instrument on, the R&S®HMP power will use the same operating mode that was in use at the time the unit was last switched off. All instrument settings (nominal values) are stored in a nonvolatile memory and will be retrieved when switching the instrument on again. By default, the output signals (OUTPUT) are switched off at the beginning of operations. This is intended to prevent a connected load from being serviced unintentionally when switching the instrument on. The intent is also to avoid destruction caused by an exceedingly high voltage or power (due to previously stored instrument settings). 4.2 Selecting the Channels To select a channel, press the corresponding channel option key CH1, CH2, CH3 or CH4. If you press a channel option key, the channel LEDs is illuminated in green. Subsequent settings refer to the selected channels. If none of the channels have been selected, the LEDs will not be illuminated. You should always first select the required output voltage and the maximum required power before activating the outputs by pressing the OUTPUT key (see chapter 4.5 Activating the Channels). If the OUTPUT key has been activated, the LED is illuminated in white. 4.4 Adjustable Maximum Values R&S®HMP2020: For the R&S®HMP2020, CH1 and CH2 continuously provide 0 V to 32 V, where the output power succeeds a power hyperbola (see fig. 4.6). Fig. 4.1: Adjustable maximum values R&S®HMP2020 R&S®HMP2030: For the R&S®HMP2030, CH1, CH2 and CH3 continuously provide 0 V to 32 V, where the output power succeeds a power hyperbola (see fig. 4.6). Fig. 4.2: Adjustable maximum values R&S®HMP2030 R&S®HMP4030: For the R&S®HMP4030, CH1, CH2 and 4.3 Selecting the Output Voltage To select the output voltage, press the VOLTAGE key. Then you can press the channel option key CH1, CH2, CH3 or CH4 to activate the respective voltage setting for the corresponding channel. If the VOLTAGE key has been activated, the LED is illuminated in white. In addition, the LED color for the corresponding channel changes to blue. If you press the VOLTAGE (or CURRENT) key, the white arrow key LEDs will also be illuminated. The nominal value for the output voltage can be selected via knob and arrow keys. For the R&S®HMP4030 / HMP4040, the easiest way to enter a value precisely and promptly is to use the numeric keypad. Press the corresponding key to enter the voltage value and confirm the selection by pressing the ENTER key. Before confirming the value, you can delete any value that has been entered incorrectly by pressing the C key. CH3 continuously provide 0 V to 32 V, where the output power succeeds a power hyperbola (see fig. 4.6). Fig. 4.3: Adjustable maximum values R&S®HMP4030 R&S®HMP4040: For the R&S®HMP4040, CH1, CH2, CH3 and CH4 continuously provide 0...32 V, where the output power succeeds a power hyperbola (see fig. 4.6). Fig. 4.4: If you wish to select the channel voltage via knob, the VOLTAGE key must be activated before you can select the desired decimal point via arrow keys. Once the setting has been completed, press the VOLTAGE key again. Other- Adjustable maximum values R&S®HMP4040 35 Operating the R&S®HMP Series 4.5 Setting the Current Limit A current limit indicates that only a specific maximum current Imax can flow. Prior to operating an experimental circuit, this maximum value will be selected at the power supply. The intent is to prevent damage to the experimental circuit in case an error occurs (e.g. a short circuit). Uout Umax Voltage regulation Current control Imax Iout Fig. 4.5: Current limit As the diagram shows, it remains true that Uout = Umax will remain stable as long as the output current Iout < Imax (voltage regulation). If the selected current value Imax is exceeded, the current control (Constant Current operating mode) is applied. This means that despite an increased load, the value Imax can no longer increase. Instead, the voltage Uout will decrease below the nominal value of Umax. However, the current flow remains limited to Imax. If the OUTPUT key and VOLTAGE key are activated and the selected channel is changed, the blue LED of the respective channel will flash alternately in green (CV = Constant Voltage) and red (CC = Constant Current), depending on the operating mode. After switching on the power (OUTPUT Off) the instrument will always be in the constant voltage operating mode. The maximum current Imax corresponds to the setting on the CURRENT key. Once the CURRENT key has been activated, the corresponding channel can be selected. The value is selected via knob or arrow keys. The current is selected individually for each channel. Once the setting has been completed, press the CURRENT key again. Otherwise, the instrument will automatically switch back after 5 seconds, without the changes taking effect (see chapter 5.3.7 Key Fallback Time). The combination of selected voltage and selected current limit results in the following power hyperbola: I (5) 10 (2,5) 5 (0) 0 0 16 32 V Fig. 4.6: (R&S®HMP2030) R&S®HMP2020/4030/4040 power hyperbola According to the electrical basic formula for power P = U, the following results for the maximum power per channel: 36 R&S®HMP2020: CH1 = 160 W, CH2 = 80 W (188 W max.) R&S®HMP2030: 80 W per channel (188 W max.) R&S®HMP4030: 160 W per channel (384 W max.) R&S®HMP4040: 160 W per channel (384 W max.) For instance, for the R&S®HMP2020 at 160 W per channel for a 24 V voltage, this would result in a maximum current of 6.67 A, and .3.33 A for the R&S®HMP2030. To protect a connected, sensitive load even better, the R&S®HMP series includes an electronic fuse. The FUSE key allows the selection or deletion of fuses. For the fuse selection the FUSE button will be activated (FUSE-LED will be illuminated) before choosing the appropriate channel. If the respective channels are selected with FUSE, the channel LEDs will be illuminated in blue. Press the FUSE key again to complete the setting for the electronic fuse. Without any input, by default the instrument will switch back after 5 seconds (see chapter 5.3.7 Key Fallback Time). After the instrument has been switched back, the channel LEDs will be illuminated in green again. In the display, FUSE will be shown for each channel (see fig. 4.7). Fig. 4.7: R&S®HMP2030/ ¸HMP4040 Fuse appearance in the display 4.5 Activating the Channels For all ROHDE & SCHWARZ power supplies, the output voltages can be switched on and off via key (OUTPUT). The power supply itself remains switched on. This allows you to con-veniently select the desired output parameters up front and subsequently connect to the load via the OUTPUT key. If the OUTPUT key is activated, the respective LED will be illuminated in white. As a result of the inline regulator concept, naturally a capacity is required at the output to achieve ambitious goals regarding Noise/Ripple. It required high technical complexity (for instance by means of internal current sink) to reduce the screening capacity visible for the load to a minimum. To prevent unintended transient currents, please be sure to deactivate the respective output before activating a load, then connect the load and as a last step activate the output. This allows you to implement an optimal transient response when activating the output. Be sure to operate highly sensitive semiconductors, such as laser diodes, only as specified by the manufacturer. Operating the R&S®HMP Series 5 Advanced Operating Functions 5.1 Storing / Recalling of Settings (STORE / RECALL) The current settings for the measuring instrument can be stored in a nonvolatile memory in memory locations 0 to 9 by pressing the STORE key. Use the knob to select the respective memory location and press it again to confirm the selection. The RECALL key allows you to reload the settings. Use the knob again to select the settings. If the STORE / RECALL key has been activated, the LED will be illuminated in white. 5.2 Tracking Function The tracking function allows you to interlink multiple channels. It is possible to change both the voltage and the current limit for the individual channels simultaneously (see the 1-V position of 3 channels in fig. 5.1). Fig. 5.1: 1-V position for all three channels If the current for a channel exceeds the value Imax and if the electronic fuse for this channel has been activated via FUSE key (see Setting the Current Limit), all channels interlinked with this channel will be switched off. If the electronic fuse is triggered, the interlinked channels are switched off; however, the OUTPUT key remains active. At any given time, the outputs can be reactivated via corresponding channel option key. In case of any remaining excess current, it will immediately be switched off again Fig. 5.2 shows that exceeding the current limit at CH1 leads to automatically having CH2 and CH3 switched off whereas an over current in CH2 results in having CH3 deactivated. Use the left arrow key to return to the previous menu level. 5.3.2 Fuse Delay This menu item allows the selection of a so called Fuse Delay between 0 ms to 250 ms. For instance, this prevents the fuse to be triggered in case of a capacitive load The Fuse Delay function is only available when the channel is activated (Output On). This function is not activated in the regular function mode. The fuse delay can be changed via knob. You can select a different channel by pressing the knob. Use the left arrow key to return to the previous menu level. (R&S®HMP2030) To access the tracking mode, press the TRACK key. Then you can select the individual channels. If you change the voltage of one of these channels via knob or arrow keys, press the VOLTAGE key to change the voltages of the interlinked channels by the identical amount. The same applies to the current and the usage of the CURRENT key. During tracking, the R&S®HMP power supply retains the previously selected voltage and current difference between the channels until a channel has reached the minimum or maximum value of the voltage or current. If the TRACK key has been activated, the LED is illuminated in white. This key remains activated until it is pressed again (no automatic switch back after 5 sec). Fig. 5.3: Setting the Fuse Delay (R&S®HMP2030) 5.3.3 Over Voltage Protection (OVP) The so called OVP can be selected separately for each channel. The over voltage protection is preset at the factory to 33 V; however, this may be reduced to match the requirements of the respective application. If the voltage exceeds the preset value Umax, the output will be switched off to protect the load. If the over voltage protection is active, OVP will flash in the display. Fig. 5.4: 5.3 Menu Options (MENU Key) 5.3.1 FUSE Linking The Fuse Linking function allows you to logically interlink channels with their electronic fuses. Use the knob to choose the individual channels and press it to select or deselect them. To return to the display screen, press the MENU key again (no automatic switch back). Fig. 5.2: Example Fuse Linking (¸HMP4040) Over Voltage Protection (R&S®HMP2030) With firmware version 2.0 and higher, two additional OVP versions can be selected: ❙❙ measured and ❙❙ protected. Individual menu items can be selected and changed by pressing the knob. In the measured mode, the reference value from the instrument is considered as threshold for the over voltage protection. In the protected mode, the value set at the instrument is considered the threshold for the over voltage protection. Use the left arrow key to return to the previous menu level. 37 Advanced Operating Functions 5.3.4 Arbitrary Activate the menu Arbitrary by pressing the knob. The HMP series allows you to generate freely programmable waveforms which can be reproduced within the limits set by the instrument for voltage and current for the respective channel. The arbitrary function can be configured and executed via control panel or external interface. the arbitrary function. Pressing the OUTPUT key deactivates only the respective channel and does not stop the function. This means that the arbitrary waveform continues internally. The option Clear Waveform allows you to delete any previously made settings. With firmware version 2.12 and higher, the output level remains at the most recently selected value on the arbitrary signal! Fig. 5.5: Arbitrary settings (R&S®HMP2030) For all practical purposes, each HMP channel has its own arbitrary memory. This means that first an arbitrary waveform is generated, then it is transmitted to the first channel (followed by the second, third, etc. channel) and finally, the arbitrary waveform of the respective channel is started. In other words, a waveform is generated for channel 1, then for channel 2 etc. (including a delay of approximately 100 ms at the start). Nevertheless, it is very difficult to implement a simultaneous start/end phase for multiple waveforms as a certain delay always occurs between these waveforms. This hampers calculations as these delays are dependent on the execution of remote commands, the transfer between the interface and the instrument as well as the process software. Therefore, it is impossible to synchronize all arbitrary waveforms. The arbitrary function was developed for individual channels and is not intended to function comprehensively across all channels. Nonetheless, the individual arbitrary waveforms should only slightly deviate from each other. Use the menu item Edit Waveform to edit the parameters for the freely programmable waveform. The base data for voltage, current and time (duration per point) are required for this purpose. The appropriate base data allow you to generate any of the common waveforms (step function, saw tooth, sine, etc.). Use Save Waveform to save up to 3 settings (waveforms) which can be recalled by using the Recall Waveform option. To confirm the respective memory, press the knob. To load the memory, apply the same steps. Use the left arrow key to return to the previous menu level. Example of an Arbitrary Signal (R&S®HMP2030): Alternatively, you can also use the EasyArb software module of the HMExplorer software to create an arbitrary file. This allows you to create each point of a waveform by use of the editor. You can add or delete individual points by using the “+“ or “–“ function. Fig. 5.6: Arbitrary-Editor example (excerpt) HMExplorer Software Once all arbitrary points have been created, the created signal can be transferred to the instrument via interface by using the menu item TRANSFER. The menu Transfer opens and allows you to select the respective R&S®HMP channel and the repetitions. Additionally, you can activate the output to issue the signal at the output and to view it on an oscilloscope, for instance (see fig. 5.8). It is possible to repeat 128 specified points (index of 0...128). The repetition rate is at a maximum of 255 repetitions. If the repetition rate (Repetitions) is set to “000“, the A signal with three specified points can only be issued by an AD converter as a staircase curve. To issue it as a sawtooth signal, additional specified points are required. To display complex voltage sequences through the available 128 specified points and the minimum delay of 10ms, the R&S®HMP is suitable to only a limited extent. arbitrary function will be repeated infinitely. Use the knob to set the values and press it to confirm your selections (alternatively, you can use the right arrow key to confirm). Use Transfer Waveform to transfer the set data to the selected channel and select Start Waveform and press the OUTPUT key to create the set data at the respective output. The display indicates that the values set in Edit Waveform are repeated. Use Stop Waveform to end 38 Fig. 5.7: Output arbitrary example on an oscilloscope For more information about the EasyArb software module, please refer to the HMExplorer software manual which can be found in the software ZIP file as PDF document. Advanced Operating Functions 5.3.5 Interface Activate the menu Interface by pressing the knob. In this menu, the following settings for the various interfaces can be selected: ❙❙ the dual interface HO720 USB/RS-232 (baud rate, number of stop bits, parity, handshake On/Off), ❙❙ LAN interface HO730/HO732 (IP address, sub net mask etc. see manual HO730/HO732) and ❙❙ the IEEE-488 GPIB interface HO740 (GPIB address). The use of the LAN interface HO730 requires a delay of a minimum of 2 ms between two commands! Select Interface allows you to select the respective interface via knob. The selection is indicated by a check mark. Additionally, under Information the active interface will be displayed in brackets [ ]. For more information about interfaces, please see chapter 6 or the respective manuals at www.hameg.com. Use the left arrow key to return to the previous menu level. 5.3.6 Key Brightness (only R&S®HMP2020/2030) Activate the menu Key Brightness by pressing the knob. This menu item allows you to regulate the intensity of the key illumination via knob. Use the left arrow key to return to the previous menu level. 5.3.7 Key Fallback Time Activate the menu Key Fallback Time by pressing the knob. The so called Key Fallback Time can be set to 5s or 10s via knob. In addition, it is possible to switch off the automatic switching back (Off). The selection is indicated by a check mark. Use the left arrow key to return to the previous menu level. (Off). The selection is indicated by a check mark. Press any key to return to the regular operating mode. 5.3.11 Beeper Activate the menu Beeper by pressing the knob. This menu allows you to activate or deactivate the noise issued by the keys. In addition, the HMP series offers the option to issue a signal only in case an error occurs. This can also be activated or deactivated at this point. Use the left arrow key to return to the previous menu level. Fig. 5.9: Beeper (R&S®HMP2030) 5.3.12 Information Activate the menu Information by pressing the knob. This includes instrument information such as type classification, firmware version and version of the channel firmware. Use the left arrow key to return to the previous menu level. If all the channels do not have the same firmware, a firmware update will be required. 5.3.13 Reset Device Activate the menu Reset Device by pressing the knob. This menu item allows you to reset the instrument to its original condition (factory settings). All selected instrument settings will be erased. Fig. 5.8: Key Fallback Time (R&S®HMP2030) 5.3.8 Display Contrast Activate the menu Display Contrast by pressing the knob. This menu item allows you to regulate the display contrast via knob. Use the left arrow key to return to the previous menu level. 5.3.9 Display & Key Brightness (only R&S®HMP4030/4040) This menu item allows you to regulate the intensity of the key and display illumination via knob. 5.3.10 B rightness Fallback Time (only R&S®HMP4030/4040) This menu item allows you to select the so called Brightness Fallback Time. If no instrument settings are performed on the front panel for some time, the intensity of the display and keys will automatically be reduced. The Fallback Time can be set to 30 min. or 120 min. via knob. In addition, it is possible to switch off the Fallback Time 39 Advanced Operating Functions 6 Remote Control By default, the R&S®HMP series includes a HO720 USB/ RS-232 interface. You can find the drivers for this interface on the product CD enclosed with the power supply or on the ROHDE & SCHWARZ Homepage. The LED for the remote key is illuminated in white (= active), if communication to the instrument has been established via interface (Remote Control). To return to the local operating mode (Local Control), press the remote key again, provided that the instrument has not been locked out from local operation via interface (Local lockout). If local operation is locked, the instrument cannot be operated via front panel keys. With firmware version version 2.0 and higher, it is also possible to use the mixed operating mode, which allows the simultaneous front and remote use. To achieve external control, the R&S®HMP series uses the scripting language SCPI (= Standard Commands for Programmable Instruments). The provided USB/RS232 dual interface (optional Ethernet/USB or IEEE-488 GPIB) enables you to control the ROHDE & SCHWARZ instrument externally via remote connection (remote control). As a result, you can access nearly all functions that are available during the manual operating mode via front panel. To download a PDF document with a detailed list of supported SCPI commands, please visit the ROHDE & SCHWARZ homepage. To enable communication, the selected interface and the respective settings in the measuring instrument must be identical to the selections for the PC. Pin 2 Tx Data (data from power supply to external device) 3 Rx Data (data from external device to power supply) 7 CTS Clear to Send 8 RTS Request to Send 5 ground (reference potential, connected with power supply (safety class II) and power cable to the grounding conductor 9 +5V supply voltage for external devices (max. 400mA) Fig. 6.1: Pin assignment of the RS-232 interface 6.2USB The currently available USB driver have been fully tested and released for Windows XP™, VISTA™, Windows 7™ and Windows 8™ (32 + 64 Bit). The USB interface must be selected in the menu of the power supply and requires no further action. The actual USB driver can be downloaded from the ROHDE & SCHWARZ homepage for free. If a connection between PC and the instrument has been established and no R&S®HMP USB driver is installed, the operating system answers with “Found New Hardware”. Only in this case the USB driver must be installed. Further information about the USB driver installation you can find in the HO720/HO730/HO732 installation guide internal of the driver file. 6.1RS-232 The RS-232 interface is built with a 9-pin D-SUB connector. This bidirectional interface allows the transfer of setup parameters, data and screenshots from an external device (e.g. PC) to the power supply or vice versa. It is possible to establish a direct connection from the PC (serial port ) to the interface via 9-pin shielded cable (1:1 wired). The maximum length must not exceed 3 m. The pin assignment for the RS-232 interface (9-pin D-SUB connector) please refer to fig. 6.1. The following requirement for USB driver installation are necessary: 1 R&S®HMP with an activated USB interface. 2 A PC with operating system Windows XP™, VISTA™, Windows 7™, Windows 8™ or Windows 10™ (32 or 64Bit). 3 Administrator rights are necessary for the installation of the driver. If an error message regarding spelling errors appears, the rights to install the driver are not given. In this case, please contact your IT department to obtain the necessary rights. The maximum voltage variation at the Tx, Rx, RTS and CTS connections is ±12 Volt. The RS-232 standard parameters for the interface are as follows: ❙❙ 8-N-1 (8 data bits, no parity bit, 1 stop bit) ❙❙ RTS/CTS hardware protocol: none. In addition, you may use the free software HMExplorer. This Windows application offers R&S®HMP instruments a terminal function and the option to create screenshots and arbitrary waveforms. Use the MENU key and the menu item Interface to set these parameters on the R&S®HMP. Afterwards, please make sure that the RS-232 selection as the interface is indicated by a check mark. You can select the interface parameters under Settings. 40 6.3 Ethernet (Option HO730/HO732) For the direct connection with a host (PC) or indirect connection over a SWITCH, a doubly protected network cable (e.g. CAT.5, CAT.5e, CAT.5+, CAT.6 or CAT.7) is required, equipped with an Ethernet plug type the RJ-45 at each end. Either an uncrossed or a crossed network cable (cross over cable) can be used. Remote Control 6.3.1 IP networks (IP – Internet protocol) In order that two or several network elements (e.g. measuring instruments, host/PC‘s, …) can communicate over a network with one another, some fundamental connections have to be considered, so that data communication is error free and unimpaired. For each element in a network an IP address has to be assigned, so that they can exchange data among themselves. IP addresses are represented (with the IP version 4) as four decimal numbers separated by points (e.g. 192.168.15.1). Each decimal number is represented by a binary number of 8 bits. IP addresses are divided into public and private address ranges. Public IP addresses will be able to route by the Internet and an Internet service Provider (ISP) can to be made available. Public IP addresses can be reached directly over the Internet to directly exchange internet data. Private IP addresses are not routed by the Internet and are reserved for private networks. Network elements with private IP addresses cannot be reached directly over the Internet so no data can be directly exchanged over the Internet. To allow network elements with a private IP address to exchange data over the Internet, they require a router for IP address conversion (English NAT; Network address translation), before connection to the Internet. The attached elements can then data exchange over this router, which possesses a private IP address (LAN IP address) and also a public IP address (WAN IP address), via the Internet. If network elements exchange data only over a local network (without connection with the Internet), appropriate use private IP addresses. Select in addition e.g. a private IP address for the instrument and a private IP address for the host (PC), with which you would like to control the instrument. If you might connect your private network with the Internet later via a router, the private IP addresses used in your local network can be maintained. Since within each IP address range the first IP address is used as network IP address and the last IP address is used as Broadcast IP address, in each case two IP addresses have to be taken off from the “number of possible host addresses“ (see table 1: Private IP address ranges). Apart from the organization of IP addresses into public and private address ranges, IP addresses are also divided into classes (Class: A, B, C, D, E). Within the classes A, B, and C are also include the private IP of address ranges described before. The categorisation from IP addresses is for the assignment of public IP address ranges of importance and essentially depends on the size of a local network (maximum number of hosts in the network), which is to be connected with the Internet (see table 2: Classes of IP addresses). IP addresses can fix (statically) or variable (dynamically) to be assigned. If IP addresses in a network are assigned fix, an IP address must be preset manually with each network element. If IP addresses in a network are assigned to the attached network elements automatically (dynamically), a DHCP server (English DHCP becomes; Dynamic Host Configuration Protocol) is required for the dispatching of IP addresses. With a DHCP server an IP address range for the automatic dispatching of IP addresses can be preset. A DHCP server is usually already integrated in a router (DSL router, ISDN router, Modem router, WLAN router, …) integrated. If a network element (e.g. an instrument) is connected by a network cable directly with a host (PC), the IP addresses cannot be assigned to the instrument and the host (PC) automatically, since no network with DHCP server is present here. They have to be preset therefore at the instrument and at the host (PC) manually. IP addresses are divided by using subnet mask into a network quota and into a host quota, so similarly e.g. a telephone number is divided in pre selection (land and local area network number) and call number (user number). Subnet mask have the same form as IP addresses. They are represented with four decimal numbers separated by points (e.g. 255.255.255.0). As is the case for the IP addresses here each decimal number represents a binary number of 8 bits. The separation between network quota and host quota is determined by the subnet mask within an IP address (e.g. the IP address 192.168.10.10 by the subnet mask 255.255.255.0 is divided into a network quota 192.168.10.0 and a host quota of 0.0.0.10). The allocation takes place via the transformation of the IP address and the subnet mask in binary form and afterwards a bit by bit adress range subnetz mask CIDR way of writing number of possible host adresses 10.0.0.0 –10.255.255.255 255.0.0.0 10.0.0.0/8 224 − 2 = 16.777.214 172.16.0.0 –172.31.255.255 255.240.0.0 172.16.0.0/12 220 − 2 = 1.048.574 192.168.0.0 –192.168.255.255 255.255.0.0 255.255.255.0 192.168.0.0/16 192.168.0.0/24 216 − 2 = 65.534 28 − 2 = 254 Table 6.1: Private IP adress ranges class adress range net quota host quota max. number of networks max. number of hosts A 0.0.0.1 - 127.255.255.255 8 Bit 24 Bit 126 16.777.214 B 188.8.131.52 - 184.108.40.206 16 Bit 16 Bit 16.384 65.534 C 192.0.0.1 - 220.127.116.11 24 Bit 8 Bit 2.097.151 254 D 18.104.22.168 - 22.214.171.124 Reserved for multicast applications E 240.0.0.1 - 255.255.255.255 Reserved for special applications Table 6.2: Classes of IP adresses 41 Remote Control one logical AND operation between IP address and subnet mask. The result is the network quota of the IP address. The host quota of the IP address takes place via the bit by bit logical NAND operation between IP address and subnet mask. By the variable allocation of IP addresses in network quota and host quota via subnet masks, one can specify IP address ranges individually for large and small networks. Thus one can operate large and small IP networks and connect if necessary to the Internet via a router. In smaller local networks the subnet mask 255.255.255.0 is mostly used. Network quota (the first 3 numbers) and host quota (the last number) are simple here without much mathematical expenditure to determine and it can with these subnet mask up to 254 network elements (e.g. measuring instruments, hosts/PC‘s...) in a network be operated at the same time. Often also a standard gateway is present in a network. In most local networks is this gateway with the router to the Internet (DSL router, ISDN router etc.) is identical. Using this (gateway -) router a connection can be manufactured with another network. Thus also network elements, which are not in the same (local) network, can be reached and/ or network elements from the local network are able to exchange data with network elements from other networks. For a network-spreading data exchange the IP address of the standard gateway must also be preset. In local networks, mostly the first IP address within a network for this (gateway -) router is used. Mostly routers in a local network to be used as gateway have an IP address with a „1“ in the last place of the IP address (e.g. 192.168.10.1). 6.3.2 Ethernet settings PC and instrument have to be connected to the same network. Otherwise a remote connection is not possible. In addition to the USB interface, the optional interface card HO730 resp. HO732 includes an Ethernet interface. The required parameters are selected in the power supply once Ethernet has been selected as interface. You can specify all parameters and assign a fixed IP address. You can also assign a dynamic IP address with the activated DHCP function. Please contact your IT management to configure the settings properly. If DHCP is used and the system cannot assign an IP address to the R&S®HMP (for instance, if no Ethernet cable is connected or the network does not support DHCP), it may take up to three minutes until a timeout allows the interface to be configured again. If the device has an IP address, it can be accessed via web browser at this IP since the HO730 resp. HO732 includes an integrated web server. Enter the IP address in the location bar on your browser (http//xxx.xxx.xxx.xx). This opens a window that includes the instrument name and type, serial number and interfaces with technical information and configured parameters. For further information, please refer to the HO730 resp. HO732 manual on the ROHDE & SCHWARZ homepgage. 42 In general, the HO730 works with a RAW-Socket communication to control the instrument and to retrieve the measuring values. Therefore, a TMC protocol or a similar protocol will not be used. 6.4 IEEE 488.2 / GPIB (Option HO740) The optional interface card HO740 includes a IEEE488.2 interface. The required parameters are selected in the power supply once IEEE 488 has been selected as interface. For further information, consult the HO740 manual. Advanced Applications 7 Advanced Applications 7.1 Compensating for Voltage Drops on the Supply Lines (Sense Mode) should be set to the identical value. If one of the outputs exceeds the current limit, the total voltage will naturally collapse. It is advisable to set both voltages to a similar value to distribute the loads evenly (not absolutely necessary). If a (low resistance) load is connected, it is essential to activate more than one channel. This could damage the instrument (especially protective diodes). Therefore, it is necessary to always have both channels or no channel at all switched on. 7.2.2 Parallel Mode If it is necessary to increase the total current, the power supply outputs must be wired in parallel. The output voltages for the individual outputs should be set to the same voltage value as precisely as possible. For slight voltage differences, it is common in this operating mode to first charge a voltage output up to the current limit; the other voltage output provides the remaining current. For the parallel mode, you must ensure that the allowed protective low voltage can be exceeded. Fig. 7.1: Compensating the voltage drops in diagram The two SENSE lines allow you to compensate voltage drops on the supply lines to the load so that the actual selected voltage is applied to the load. Use two separate measuring lines to connect the load to the two external black safety sockets of the respective channel (see figure above). 7.2 Parallel and Serial Mode It is assumed that only qualified and trained personnel service the power supplies and the connected consumers. To increase output voltage and currents, it is possible to operate the channels in serial or parallel mode. These operating modes require that power supplies are suitable for the parallel and/or serial mode. This is the case for HAMEG power supplies. In general, the output voltages to be combined are independent. The outputs for one or multiple power supplies can be interconnected for this purpose. 7.2.1 Serial Mode If the maximum total instrument power is exceeded, the output (OUTPUT) will automatically be switched off! A warning will be shown on the display. As can be seen, this type of interconnection adds the individual output voltages. The same current flows through all outputs. The current limits for the outputs wired in series 32 V 2.5 A CH1 32 V 2.5 A CH2 64 V 2.5 A Fig. 7.2: Example serial mode CH3 The maximum total current is the sum of the individual currents of all sources connected in parallel. For power supplies that are connected in parallel, It is possible that compensating currents flow within the power supplies. The use of power supplies by other manufacturers, which are potentially not overload proof, can cause destruction of these units as currents may be distributed unevenly. 32 V 2.5 A CH1 32 V 2.5 A CH2 CH3 32 V 5A Fig. 7.3: Example parallel mode Generally, a higher current will first be supplied from the channel with the higher output voltage. Once this channel reaches its power limit, the remaining current will be made available by the channel that is connected in parallel. In this scenario, it is unpredictable which channel will supply the higher current because it is also possible for channels with identical voltage values to display a low voltage difference. By increasing the voltage slightly, the load distribution can be manipulated. If the voltage for a channel is to be increased by 50mV, for instance (by a set of identical cables), the current will initially be provided by this channel. If you wish to distribute the load to multiple channels, it is recommended to set the current limit of the channel that is to supply the main current to a fraction of the current. This approach handles the semiconductor with care and improves the heat dissipation, as the power loss is distributed more evenly. 43 Advanced Applications Specifications 8 Specifications Programmable power supplies 2 / 3 / 4 channels HMP2020 HMP2030 HMP4030 HMP4040 All data valid at 23°C after 30 minute warm-up. HMP2020 10 A: <500 mA: <0,05 % + 0,5 mA, typ. ±0,5 mA; ≥500 mA: <0,05 % + 2 mA, typ. ±2 mA <500 mA: <0,05 % + 0,5 mA, typ. ±0,2 mA; ≥500 mA: <0,05 % + 2 mA, typ. ±1 mA Access Line co Residual ripple:: 3 Hz…100 kHz; 3 Hz…20 MHz Voltage: <150 µVrms typ.; 1,5 mVrms typ <250 µVrms Current <1 mArms Recom HO730 HO740 HZ10S 5 A: Residual deviation after a load change (10 to 90 %): Outputs Voltage: <0.01 % + 2 mV Advanced parallel and series operation: simultaneous switching on/off of active channels via “output” button, common voltage- and current control using tracking mode (individual channel linking), individual mapping of channels which shall be affected by FuseLink overcurrent protection (switch-off), all channels galvanically isolated from each other and the protective earth Current: <0.01 % + 250 µA HMP4040: 4 x 0 - 32 V / 0 - 10 A HMP4030: 3 x 0 - 32 V / 0 - 10 A HMP2030: 3 x 0 - 32 V / 0 - 5 A HMP2020: 1 x 0 - 32 V / 0 - 10 A; Residual deviation after a line voltage change (±10 %): Voltage: <0.01 % + 2 mV Current: <0.01 % + 250 µA Recovery time after a load step from 10 to 90 % for return within a ±10 mV window: <1 ms Arbitrary function EasyArb 1 x 0 - 32 V / 0 - 5 A Parameters of points: Voltage, current, time 128 Output terminals: 4 mm safety sockets frontside, screw-type terminal rear side (4 units per channel) Number of points: Dwell time: 10 ms to 60 s Output power: 188 W max. Repetition rate: HMP4030 / HMP4040 384 W max. Continuous or burst mode with 1 to 255 repetitions HMP2020 / HMP2030 188 W max. Trigger: Manually via keyboard or via interface Maximum ratings Compensation of lead resistances (Sense): 1V Overvoltage/overcurrent protection (OVP/OCP): Adjustable for each channel Electronic fuse: Adjustable for each channel, may be combined using FuseLink Response time: <10 ms 32 V channels Reverse voltage: 33 V max. Reverse polarized voltage: 0.4 V max. Max. permitted current in case of reverse voltage: 5 A max. Voltage to earth: 150 V max. Miscellaneous Temperature coefficient/°C: Output values: Voltage: 0.01 % + 2 mV HMP4040: 4 x 0 - 32 V/0 - 10 A, (5 A bei 32 V, 160 W max.) Current: 0.02 % + 3 mA HMP4030: 3 x 0 - 32 V/0 - 10 A, (5 A bei 32 V, 160 W max.) Display: HMP2030: 3 x 0 - 32 V/0 - 5 A, (2,5 A bei 32 V, 80 W max.) HMP4030 / HMP4040 240 x 128 pixel LCD (full graphical) 1 x 0 - 32 V/0 - 10 A, (5 A bei 32 V, 160 W max.) 1 x 0 - 32 V/0 - 5 A, (2,5 A bei 32 V, 80 W max.) HMP2020 / HMP2030 240 x 64 pixel LCD (full graphical) Memory: Non volatile memory for 3 arbitrary functions and 10 device settings 1 mV Interface: Dual interface USB/RS-232 (HO720) Processing time: <50 ms HMP2020 10 A: 5 A: Resolution: Voltage Current HMP4030 / HMP4040 <1 A: 0.2 mA; ≥1 A: 1 mA Protection class: Safety class I (EN61010-1) HMP2030 <1 A: 0,1 mA; ≥1 A: 1 mA Power supply: 115/230 V±10 %; 50 to 60 Hz, CAT II <1 A: 0,2 mA; ≥1 A: 1 mA <1 A: 0,1 mA; ≥1 A: 1 mA Mains fuses HMP4030 / HMP4040: 115 V: 2 x 10 A slow blow 5 x 20 mm 230 V: 2 x 5 A slow blow 5 x 20 mm <0.05 % + 5 mV (typ. ±2 mV) Mains fuses HMP2020 / HMP2030: 115 V: 2 x 6 A slow blow 5 x 20 mm 230 V: 2 x 3.15 A slow blow 5 x 20 mm HMP2020 10 A: 5 A: Setting accuracy: Voltage: Current Power consumption: HMP4030 / HMP4040 <0.1 % + 5 mA (typ. ±1 mA at I <500 mA) HMP4030/HMP4040 550 VA max. HMP2030 <0.1 % + 5 mA (typ. ±0.5 mA bei I <500 mA) HMP2020/HMP2030 350 VA max. <0,1 % + 5 mA (typ. ±1 mA bei I <500 mA) <0,1 % + 5 mA (typ. ±0,5 mA bei I <500 mA) Operating temperature: +5…+40 °C Storage temperature: -20…+70 °C Rel. humidity: 5…80 % (non condensing) HMP2020 10 A: 5 A: Measurement accuracy: Voltage: <0.05 % + 2 mV Current HMP4030 / HMP4040: HMP2030: 44 <500mA: <0.05 % + 0.5 mA, typ. ±0.5 mA ≥500 mA: <0.05 % + 2 mA, typ. ±2 mA <500 mA: <0.05 % + 0.5 mA, typ. ±0.2 mA ≥500 mA: <0.05 % + 2 mA, typ. ±1 mA Dimensions (W x H x D): HMP4030 / HMP4040 285 x 125 x 365 mm HMP2020 / HMP2030 285 x 75 x 365 mm Weight: HMP4030 / HMP4040 approx. 10 kg HMP2020 / HMP2030 8.5 kg HZ10R HZ10B HZ13 HZ14 HZ42 HZ72 HZP91 ±0,5 mA; mA ±0,2 mA; mA Appendix Specifications 9Appendix Accessories included: Line cord, operating manual, CD, software 9.1 List of figures Fig. 1.1: Voltage selector . . . . . . . . . . . . . . . . . . . . . . . . . 30 Fig. 1.4: Product labeling in accordance with EN 50419.31 Fig. 2.1: Front panel of R&S®HMP2030. . . . . . . . . . . . . . 32 Fig. 2.2: Rear panel of R&S®HMP2030 . . . . . . . . . . . . . . 32 Fig. 2.3: Front panel of R&S®HMP4040. . . . . . . . . . . . . . 33 Fig. 2.4: Rear panel of the HMP4040 . . . . . . . . . . . . . . . 33 Fig. 3.1: R&S®R&S®HMP4030 (3-channel version) . . . . . 34 Fig. 3.2: Example of an arbitrary function. . . . . . . . . . . . 34 Fig. 3.3: Fuse Linking R&S®HMP2030 / R&S®HMP4040. 34 Fig. 3.4: R&S®HMP4040 terminal strip on the back panel of the instrument. . . . . . . . . . . . . . . 34 Fig. 4.1: Adjustable maximum values R&S®HMP2020. . 35 Fig. 4.2: Adjustable maximum values R&S®HMP2030. . 35 Fig. 4.3: Adjustable maximum values R&S®HMP4030. . 35 Fig. 4.4: Adjustable maximum values R&S®HMP4040. . 35 Fig. 4.5: Current limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Fig. 4.6: (R&S®HMP2030) R&S®HMP2020/4030/4040 power hyperbola . . . . . . . . . . . . . . . . . . . . . . . 36 Fig. 4.7: R&S®HMP2030/ ¸HMP4040 Fuse appearance in the display. . . . . . . . . . . . . 36 Fig. 5.1: 1-V position for all three channels (R&S®HMP2030). . . . . . . . . . . . . . . . . . . . . . . . . 37 Fig. 5.2: Example Fuse Linking (¸HMP4040). . . . . . 37 Fig. 5.3: Setting the Fuse Delay (R&S®HMP2030). . . . . . 37 Fig. 5.4: Over Voltage Protection (R&S®HMP2030). . . . . 37 Fig. 5.5: Arbitrary settings (R&S®HMP2030). . . . . . . . . . 38 Fig. 5.7: Output arbitrary example on an oscilloscope. . 38 Fig. 5.6: Arbitrary-Editor example (excerpt) HMExplorer Software . . . . . . . . . . . . . . . . . . . . 38 Fig. 5.8: Key Fallback Time (R&S®HMP2030) . . . . . . . . . 39 Fig. 5.9: Beeper (R&S®HMP2030) . . . . . . . . . . . . . . . . . . 39 Fig. 6.1: Pin assignment of the RS-232 interface . . . . . . 40 Fig. 7.1: Compensating the voltage drops in diagram . . 43 Fig. 7.2: Example serial mode. . . . . . . . . . . . . . . . . . . . . 43 Fig. 7.3: Example parallel mode. . . . . . . . . . . . . . . . . . . . 43 Recommended accessories: HO730 Dual interface ethernet/USB HO740 Interface IEEE-488 (GPIB), galvanically isolated HZ10S 5 x silicone test lead (measurement connection in black) HZ10R 5 x silicone test lead (measurement connection in red) HZ10B 5 x silicone test lead (measurement connection in blue) HZ13 Interface cable (USB) 1.8 m HZ14 Interface cable (serial) 1:1 HZ42 2RU 19“ rackmount kit HZ72 GPIB-cable 2 m HZP91 19“ rackmount kit 4RU ace 0) 9.2Glossary Ambient temperature: 27 Arbitrary: 35 Arbitrary function: 31, 35, 42 Arbitrary waveform: 35, 42 II m m m mm Baud rate: 36 Beeper: 36 Brightness Fallback Time: 36 Channel option keys: 32 Clear Waveform: 35 Constant Current operating mode: 33 Constant voltage operating mode: 33 Cooling: 27 CURRENT: 29, 30, 32, 33, 34 Current limit: 33, 34, 39, 40 3 45 Appendix Display Contrast: 36 Display & Key Brightness: 36 Driver: 37 Dual Interface: 36 EasyArb function: 31 Edit Waveform: 35 Electronic fuse: 33, 34 Fuse Delay: 34 FUSE Linking: 34 GPIB interface: 36 Instrument information: 36 Intensity of illumination: 36 Interface: 29, 30, 36 Key Brightness: 36 Key Fallback Time: 32, 33, 36 Load distribution: 39 Mains voltage: 26, 28, 29, 30 Maintenance: 27, 28 Maximum values: 32 Measuring category: 28 Menu options: 34 Numeric keypad: 30 Operating temperature: 27 Operation: 26, 28, 32, 33 OUTPUT: 29, 30, 32, 33, 34, 35 Output power: 31 Output voltage: 29, 32 OVP (Over Voltage Protection): 35 Parallel operation: 39 Performance: 31, 33 Power hyperbola: 32 Power limit: 39 Recall Waveform: 35 Remote mode: 37 Repair: 27 Repetition rate: 35 Replacing a fuse: 28 Reset Device: 37 Safety instructions: 26 Save Waveform: 35 SCPI: 37 Series operation: 39 Sounds: 36 Start Waveform: 35 Stop Waveform: 35 Storage: 26, 27 Switch on: 32 46 Total current: 39 Tracking function: 34 Tracking mode: 34 Transfer Waveform: 35 Transport: 26 USB interface: 38 virtual COM Port: 38 VOLTAGE: 29, 30, 32, 33, 34 Voltage range: 31 Voltage regulation: 33 Voltage variation: 37 Warranty: 26, 27, 28 Windows HyperTerminal: 37 Appendix 47 © 2015 Rohde & Schwarz GmbH & Co. KG Mühldorfstr. 15, 81671 München, Germany Phone: +49 89 41 29 - 0 Fax: +49 89 41 29 12 164 E-mail: firstname.lastname@example.org Internet: www.rohde-schwarz.com Customer Support: www.customersupport.rohde-schwarz.com Service: www.service.rohde-schwarz.com Subject to change – Data without tolerance limits is not binding. R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG. Trade names are trademarks of the owners. 5800.4492.02 │ Version 02 │R&S®HMP Series The follwowing abbreviations are used throughout this manual: R&S®HMP Series is abbreviated as R&S HMP Series.