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4-7

RMX Programmable Power Supplies User Manual

Starting Master-Slave Parallel Operation

Turning Power On

1.

Turn the master unit’s POWER switch on.

2.

Turn the POWER switch of each slave unit on.

3.

Operate the master unit normally. You cannot perform panel operations on the slave units.
Turn output on and off from the master unit.

Turning Power Off

1.

Turn the slave unit’s POWER switch off.

2.

Turn the master unit’s POWER switch off.

Caution

After you turn the POWER switch off, wait at least 10 seconds after the

panel display turns off before you turn the POWER switch back on. Repeatedly
turning the POWER switch on and off at short intervals can cause damage to the
inrush current limiter. In turn, this will shorten the service life of the POWER switch,
internal input fuse, and other components.

CF07

CV/CC control range parameter

CF09

External control parameter for turning output on and off

CF10

External control logic parameter for turning output on and off

CF12

Output-on startup state parameter

CF14

Current setting limit

CF15

Voltage setting limit

Table 4-1.

CONFIG Parameters for Master Units (Continued)

Parameter

Description

«
...
105
106
107
108
109
...
»

Содержание RMX-4120

Страница 1: ...RMX RMX Programmable Power Supplies User Manual RMX 4120 RMX 4121 RMX 4122 RMX 4123 RMX 4124 RMX 4125 RMX 4126 RMX 4127 RMX Programmable Power Supplies User Manual February 2017 375744C 01...

Страница 2: ...terminal Chassis frame terminal On supply Off supply Support Worldwide Technical Support and Product Information ni com Worldwide Offices Visit ni com niglobal to access the branch office Web sites w...

Страница 3: ...ESS FOR A PARTICULAR PURPOSE TITLE OR NON INFRINGEMENT AND ANY WARRANTIES THAT MAY ARISE FROM USAGE OF TRADE OR COURSE OF DEALING NI DOES NOT WARRANT GUARANTEE OR MAKE ANY REPRESENTATIONS REGARDING TH...

Страница 4: ...es independent from National Instruments and have no agency partnership or joint venture relationship with National Instruments Patents For patents covering National Instruments products technology re...

Страница 5: ...the Power Supply 1 9 Loads with Accumulated Energy 1 9 Load Cables 1 10 Protecting Against Noise 1 11 Cabling Considerations When Using Remote Sensing 1 11 Connecting to the Output Terminals 1 12 Att...

Страница 6: ...NFIG Settings 2 24 Specifying CF00 CF40 CONFIG Settings 2 25 CONFIG Parameter Details 2 25 Preset Memory Function 2 39 Saving Settings to Preset Memory 2 39 Recalling Preset Memory Entries 2 40 Lockin...

Страница 7: ...1 Features of the RMX Programmable Power Supplies During Master Slave Parallel Operation 4 1 Voltage Display and Current Display 4 1 Connection Master Slave Parallel Operation 4 3 Connecting the Signa...

Страница 8: ...ff 4 11 Chapter 5 Maintenance Calibration Overview 5 1 Calibration Procedure 5 1 Installation 5 1 Launch 5 1 Calibration Items 5 2 Basic Instructions 5 3 Save Calibration 5 3 Backup Calibration Data t...

Страница 9: ...supply Figure 1 1 Connector Cover Connecting the Power Cord This product is a piece of equipment that conforms to IEC Overvoltage Category II equipment that consumes energy supplied from a fixed inst...

Страница 10: ...ut rating of the product The product can receive a nominal line voltage in the range of 100 VAC to 240 VAC at 50 Hz or 60 Hz 2 Check that the POWER switch is turned off 3 Connect the power cord to the...

Страница 11: ...witchboard Breaker Requirements Installation must be done in accordance with national wiring rules such as NFPA 70 NEC and CSA C22 1 CEC Rated current 30 A for safety breakers whose rated current exce...

Страница 12: ...d off 3 Attach a crimping terminal to the GND wire Figure 1 3 Attaching the Crimping Terminal 4 Connect the power cord and the included INPUT terminal cover to the AC INPUT terminal on the rear panel...

Страница 13: ...ect Incorrect The stripped wire is touching the chassis The wire strands are touching the chassis INPUT terminal cover INPUT terminal cover INPUT terminal cover AC INPUT terminal L Black or brown N Wh...

Страница 14: ...gs Each subsequent time you turn the power supply on it starts with the panel settings excluding the output on off setting that were in use immediately before the POWER switch was turned off You can u...

Страница 15: ...supplies save the panel settings except the output on off setting that were in use immediately before the POWER switch was turned off You can use CONFIG settings CF02 to select how the RMX programmabl...

Страница 16: ...pes of loads are connected Loads with Peak Current or Pulse Shaped Current The front panel of the RMX power supply only displays averaged voltage and current values If the supply is connected to a loa...

Страница 17: ...D If a resistor with insufficient rated power for the circuit is used the resistor will burn out Loads with Accumulated Energy Connecting a load with accumulated energy such as a battery to an RMX pro...

Страница 18: ...specified insulation voltage of the product to secure the double insulation or reinforced insulation The current capacity of a load cable is dependent on the maximum allowable temperature of the cabl...

Страница 19: ...esistance of your load cabling the voltage drop between the RMX power supply and your load will increase This results in the voltage at your load being smaller than the programmed voltage setpoint Ref...

Страница 20: ...ch on Confirm that the voltage between any output terminal and ground is lower than the isolation voltage of the RMX programmable power supply Figure 1 9 RMX 4125 Output Terminal 1 Turn the POWER swit...

Страница 21: ...crimping terminals that are appropriate for the bolts that you are using 4 Use the included bolt set to connect the load cables to the output terminals Connect the positive cable to the positive outpu...

Страница 22: ...22 4123 4126 4127 Note If you do not connect load cables in the correct orientation you will not be able to attach the OUTPUT terminal cover Spring washer Washer Nut Bolt M8 Crimping terminal Attach t...

Страница 23: ...e between 10 mm and 18 mm in diameter Put the top and bottom halves of the OUTPUT terminal cover together so that the hole diameter is large 1 Remove the screw that is attached next to the output term...

Страница 24: ...protrusion of the top half of the cover with the top section of the protrusion of the bottom half Bottom half of the cover For thick load cables Cover hole diameter 10 mm to 18 mm Cover hole diameter...

Страница 25: ...nd damage to internal circuits Never wire the sensing terminals while the POWER switch is turned on Use sensing cables that provide reinforced or double insulation with a capacity greater than or equa...

Страница 26: ...point is set the OVP will trip before an excessive voltage is generated When you are finished with remote sensing return to local sensing mode Figure 1 19 Sensing Cable Connections Table 1 2 Sensing T...

Страница 27: ...n voltage Refer to the Load Cables section for more information about the cables When using remote sensing the output terminals compensate for the voltage drop across the load cabling by increasing th...

Страница 28: ...5 Pinch the tip of the band and remove the band from the connector cover Figure 1 22 Bottom Cover with Band 6 As shown in the figure create a ring 40 mm away from the connector and fasten with the ba...

Страница 29: ...connector cover to the panel with the included screws and then insert the tip of the band into the hole of the cover Finally bring the top and bottom sides of the connector cover together and fasten...

Страница 30: ...the load cables which stabilizes the voltage However if this does not rectify the problem connect an electrolytic capacitor across the load Inserting a Mechanical Switch Between the RMX Programmable...

Страница 31: ...t National Instruments Parallel Operation Signal Cable This cable is used when you perform parallel operations The following three types are available Figure 1 26 Parallel Operation Signal Cable Part...

Страница 32: ...ll change the output voltage and current settings while in this state but the front panel will continue to display the values measured at the output Refer to the Using the RMX Programmable Power Suppl...

Страница 33: ...preset memory entry are displayed on the panel Overvoltage Protection and Overcurrent Protection Setting Display Press OCP OVP to light its LED and display the present overcurrent protection and overv...

Страница 34: ...by reaches the smallest display digit of the set voltage or current Fine Adjustment Holding down the SHIFT key while turning the VOLTAGE or CURRENT knobs allows for finer adjustment of the programmed...

Страница 35: ...urn the RMX programmable power supply off Caution If you change the load it may be damaged if the RMX programmable power supply OVP and OCP settings are not correct Operation Overview The RMX programm...

Страница 36: ...ge 30 V Rated output power Rated output current Output voltage V Output current A RMX 4120 750 W RMX 4124 1500 W Rated output power 0 10 20 30 40 50 80 RMX 4120 60 70 75 RMX 4124 90 80 70 60 50 40 30...

Страница 37: ...4126 1500 W Rated output voltage 230 V Rated output power Rated output power Rated output current RMX 4122 RMX 4126 Output voltage V Output current A 700 600 500 400 300 200 100 0 0 1 2 3 4 5 7 8 6 Ra...

Страница 38: ...ter than the compliance resistance RC the operating point falls in area A and the RMX programmable power supply will operate in CV mode point p In this case the set current IS operates as a current li...

Страница 39: ...ted output current of 10 A as an example Example 1 A load resistance RL of 8 is connected to the output terminals of the power supply The output voltage and output current are set to 30 V and 5 A resp...

Страница 40: ...wer supply automatically switches its operation mode When the RMX programmable power supply switches its operation mode the lit LED in the display area CV LED or CC LED changes to indicate the switch...

Страница 41: ...ze CV or CC mode when powering on the output Set this according to the operation mode that you are using You can prevent overshoot from occurring when the output is turned on by prioritizing CV when u...

Страница 42: ...lowing protection functions Overvoltage protection OVP Overvoltage protection 2 OVP2 Overcurrent protection OCP Undervoltage limit UVL Overheat protection OHP Overheat protection 2 OHP2 Fan failure pr...

Страница 43: ...ghts to indicate that an alarm has occurred The voltmeter display indicates the cause of the alarm The ALARM LED on the front panel blinks only when a POWER LIMIT alarm has occurred The OUTPUT LED on...

Страница 44: ...he output is turned off You can use the CONFIG settings to select how the RMX programmable power supply will perform after the problem that caused the alarm is fixed You can select to turn the output...

Страница 45: ...the UVL trip point to a value that exceeds the set output voltage If you have selected to limit the current setting CF14 on the valid programmable current values will be limited to currents that are...

Страница 46: ...OVP trip point You can use the CONFIG settings to set the detection time of the OCP activation CF13 Figure 2 17 OVP and OCP Trip Point Displays 1 Press OCP OVP The OCP OVP key LED lights up and the OV...

Страница 47: ...play area is turned off 2 Set the output voltage to a value lower than the OVP trip point 3 Press OUTPUT to turn output on The OUTPUT LED lights 4 Slowly turn the VOLTAGE knob clockwise When the outpu...

Страница 48: ...output off CONFIG setting CF15 allows you to choose whether the output setpoint is limited so that it cannot be set to a value lower than the UVL trip point Complete the following steps to set the UV...

Страница 49: ...d turn the POWER switch off and on If you do not fix the problem that caused the OHP or OHP2 to be activated OHP or OHP2 will be activated again even if you restart the RMX programmable power supply F...

Страница 50: ...is function limits the output power to a value that is approximately 105 of the rated output power This function does not turn the output off When the power limit function has been activated the ALARM...

Страница 51: ...ter that may be affected when the panel settings are reset CF00 or when a preset memory entry is loaded indicates a parameter that may be affected when the master unit the slave unit or the number of...

Страница 52: ...CF061 CV control using an Vext or Rext A CF071 CV CC control range parameter A CF08 Range during voltage and current monitoring A CF091 External control parameterforturningoutput onandoff A CF101 Ext...

Страница 53: ...C CF42 Manual IP address setting 1 B or C CF43 Manual IP address setting 2 B or C CF44 Manual IP address setting 3 B or C CF45 Manual IP address setting 4 B or C CF46 IP address subnet mask prefix se...

Страница 54: ...by pressing SET CF00 and CF40 CONFIG key CONFIG key CONFIG key CONFIG key Displayed only when the RMX series is being used as a slave unit CONFIG key CONFIG key Displayed only when the LAN interface...

Страница 55: ...alue display When you turn the CURRENT knob the RMX programmable power supply increments through the parameter numbers within the currently selected parameter range Tip Press CONFIG or turn the CURREN...

Страница 56: ...er number and the setting are blinking no new settings will be applied until you press SET When setting CF00 the measured value display appears When CF40 is set the LAN LED lights in orange for about...

Страница 57: ...n This setting is invalid when you are using an external contact to turn the output off This parameter only applies when you turn the POWER switch off and on You can only specify this parameter when t...

Страница 58: ...hether to display the saved contents in the preset memory before recalling them You can use this CONFIG parameter if you forget what settings have been saved to a preset memory entry or if you want to...

Страница 59: ...constant voltage with an external voltage or an external resistance the J1 connector You can only specify this parameter when the RMX programmable power supply is being used as a master unit CF08 Ran...

Страница 60: ...he bleeder circuit off when you don t want the electric charge stored in the output capacitance of the supply to sink into the internal bleeder circuit such as when you are charging a battery Even whe...

Страница 61: ...rent Setting Limit Set whether to limit the set output current so that its value cannot exceed the set overcurrent protection approximately 95 of the OCP trip point When this parameter is set to oFF a...

Страница 62: ...ing used as a master unit CF16 Panel Display Brightness Setting Adjusts the panel display brightness The larger the number the brighter the display Even if you specify the same number the brightness m...

Страница 63: ...interface function even when a LAN cable is connected You cannot set the LAN CONFIG settings while this parameter is turned off Even when this is set to on if the command language is set to legacy CF2...

Страница 64: ...unication errors The errors are only displayed when you are using the SCPI language Value Parameter Description SCPi The SCPi language will be used factory default setting LGCy Legacy languages will b...

Страница 65: ...when you execute CF34 CF30 to CF33 IP Address Display These parameters display the set IP addresses These parameters are only displayed when you are using the LAN interface To set a fixed IP address...

Страница 66: ...be set only when the LAN interface is in use Set whether to use on 1 or not use off 0 the following DHCP server AUTO IP function automatic assignment and MANUAL IP assignment If an IP address is not...

Страница 67: ...e LAN interface is in use These parameters are applied when you turn the POWER switch off and on when you execute APPL with CF40 Value Display Parameter Description _ _ DHCP OFF AUTO IP OFF MANUAL IP...

Страница 68: ...SCPI RAW Protocol TCP Port Number Setting Set the TCP port number of the SCPI RAW protocol for when the LAN interface is in use This parameter is applied when you turn the POWER switch off and on or...

Страница 69: ...meter is applied when you restart the RMX programmable power supply Display Description 3923 0x3923 Display Description 78A3 RMX4121 0x78A3 78A4 RMX4122 0x78A4 78A6 RMX4124 0x78A6 78A7 RMX4125 0x78A7...

Страница 70: ...oltage and current settings will be displayed on the panel 2 While viewing the values displayed on the panel use the VOLTAGE and CURRENT knobs to program the setpoint values you d like to write to mem...

Страница 71: ...d contents for confirmation and recall 1 Press SHIFT the memory key A B or C from which you want to recall the preset memory entry The SET LED and the contents voltage and current of the loaded preset...

Страница 72: ...and off Turn the bleeder circuit off when you do not want the internal bleeder circuit to sink output current When you connect a battery you can prevent excessive electrical discharges by turning the...

Страница 73: ...ge If the output terminal voltage is near 0 V hardly any current will be sunk even when the bleeder is on Table 2 5 Sink Current From an External Source when Bleeder is On Off Model Bleeder Circuit Si...

Страница 74: ...ses gradually at output terminal voltages lower than this voltage If the output terminal voltage is near 0 V hardly any current will be sunk even when the bleeder is on Table 2 7 Sink Current From an...

Страница 75: ...RMX programmable power supply is being controlled remotely the REMOTE LED in the display area lights To switch the RMX programmable power supply to local mode from the front panel press LOCAL Table 2...

Страница 76: ...tings Parameter Number CONFIG Parameter Parameter Description CF01 Master slave parallel operation parameter 1 independent operation CF021 Power on status parameter SAFE panel settings that were in us...

Страница 77: ...ng remote control NONE RMX programmable power supply commands CF23 SCPI communication error display parameter OFF not displayed CF24 Multichannel VMCB domain number 0 the multichannel function is not...

Страница 78: ...e or external resistance Turning output on and off using an external contact Output shutdown control using an external contact Clearing alarms using an external contact Monitoring operation modes Abou...

Страница 79: ...3 2 Unlocking the Snap on Core 2 Wrap the cable twice around either half of the open core Wrap the wire so that the distance between the core and the J1 connector is within 30 mm Figure 3 3 Wrapping...

Страница 80: ...ter slave parallel operation 9 PRL COMP IN Correction signal input terminal for master slave parallel operation 10 A COM External signal common for pins 5 to 9 11 to 13 20 to 22 24 and 25 During remot...

Страница 81: ...07 Lo 0 to 10 V 0 to 100 of the rated output current CF07 Hi 22 V PGM Terminal used to control the output voltage with an external voltage or external resistance 0 to 5 V 0 to 100 of the rated output...

Страница 82: ...rogrammable power supply ships from the factory If you damage or lose the detachable plug contact National Instruments for a replacement To minimize the influence of noise NI recommends using shielded...

Страница 83: ...HP2 FAN SEN ACAC FAIL is activated output through an open collector photocoupler 1 4 PWR ON STATUS Outputs a low level signal when power is turned on output through an open collector photocoupler 1 5...

Страница 84: ...that are connected to the output terminal including the sensing terminal must have a reinforced or double insulation with a capacity that is greater than or equal to the isolation voltage of the RMX...

Страница 85: ...ENS L N Load Rext RMX Vext Because the output terminal is floating the section shown on a gray background must have a reinforced or double insulation with a capacity greater than or equal to the RMX i...

Страница 86: ...t voltage of the RMX programmable power supply with respect to the chassis There is no need to provide insulation that is greater than or equal to the isolation voltage of the RMX programmable power s...

Страница 87: ...e positive output terminal is at ground potential the section shown on a gray background must have a reinforced or double insulation with a capacity greater than or equal to the maximum output voltage...

Страница 88: ...cause the cable to be damaged Refer to Figures 3 10 and 3 11 for more information If you are connecting the shield to the Vext side do not connect the shield to the output terminal of the RMX programm...

Страница 89: ...hielded cables for the connection for uncovered sections of the shielded cables use insulation tubes to secure reinforced or double insulation with a capacity greater than or equal to the isolation vo...

Страница 90: ...utput terminal Refer to Cautions When Controlling the Output with an External Voltage Vext if the shield needs to be connected to the Vext side Use pins 22 and 23 of the J1 connector Control Using an...

Страница 91: ...Current This section explains how to control the output current using an external voltage Vext or an external variable resistor of approximately 10 k Rext Caution Risk of electric shock If neither out...

Страница 92: ...external voltage control pins External voltage source Vext connection Connect a low noise stable voltage source to Vext The noise in Vext is multiplied by the amplification factor of the RMX programm...

Страница 93: ...anged in the range of 0 to 5 V CF07 Lo or in the range of 0 to 10 V CF07 Hi External Resistance Rext Connection For Rext use a resistor that is rated at approximately 10 k 1 2 W or greater that has a...

Страница 94: ...er supply To reduce the noise on the output connect a 2 core shielded wire or a twisted pair wire and keep the wire as short as possible If the wiring is long it becomes easy for noise to influence th...

Страница 95: ...to turn output on and off for all the units use a relay or similar device for the external contact signal to isolate the signal transmitted to each unit Long Distance Wiring When you are wiring over...

Страница 96: ...uncovered sections of the shielded cables use insulation tubes to secure reinforced or double insulation with a capacity greater than or equal to the isolation voltage of the RMX programmable power s...

Страница 97: ...ion of the external contact S and the connected cable must be greater than or equal to the isolation voltage of the RMX programmable power supply Refer to Appendix A Specifications for the isolation v...

Страница 98: ...LOW 0 to 0 5 V or short circuit to pin 5 of the J1 connector the alarms will be cleared Alarm Clear Connection Connect your external contact between pins 5 and 19 of the J1 connector The open circuit...

Страница 99: ...utput signals are used to monitor the DC voltage mean value They cannot be used to accurately monitor the AC components such as ripple and transient response waveform of the actual output voltage or c...

Страница 100: ...nal Monitoring of the J2 Connector Signal Terminals Operation Status Pin Signal Description Circuit 6 9 STATUS COM This is the status output common This is the photocoupler emitter output 1 CV STATUS...

Страница 101: ...ution When using the RMX programmable power supply independently or when there are units not using parallel operation disconnect the parallel operation connections Otherwise the RMX programmable power...

Страница 102: ...the master unit External monitoring of the output current I MON You can monitor the output current of the master unit and each slave unit Use the master unit to monitor the total output current Statu...

Страница 103: ...and then turn on the master unit Connection Master Slave Parallel Operation You can connect up to four units including the master unit Connecting the Signal Cables Parallel Operation Use the J1 conne...

Страница 104: ...fter you finish wiring the load When you connect the output terminals to the chassis terminals be sure to connect the same polarity output terminals positive or negative of the master unit and the sla...

Страница 105: ...ch power supply to the relay terminal block and wire the cables so that they are as short as possible 50 cm or less Also make the connection from the relay terminal block to the load block as short as...

Страница 106: ...umber of units in master slave parallel operation CF01 the maximum output current 105 of the rated output current of a single unit the number of units in parallel is set If you switch to the setting d...

Страница 107: ...the POWER switch off wait at least 10 seconds after the panel display turns off before you turn the POWER switch back on Repeatedly turning the POWER switch on and off at short intervals can cause dam...

Страница 108: ...the RMX programmable power supplies during series operation are as follows Voltage Display and Current Display The voltage and current are displayed on unit 1 and unit 2 To calculate the total output...

Страница 109: ...t the sensing cables to them as shown in the following figure Caution If the sensing cables are not connected properly the load may be exposed to excessive voltage and the RMX programmable power suppl...

Страница 110: ...Operation You can connect up to two units Caution Risk of electric shock Turn the POWER switch off before you touch the OUTPUT terminals Attach the OUTPUT terminal cover after you finish wiring the l...

Страница 111: ...Series Operation Setting the Voltage and Current Set the voltage and current on each unit The voltage that is output is the total of the voltages of the two units Set the current to the same value on...

Страница 112: ...librate RMX programmable power supplies yourself follow the procedures below All of the calibration items of the RMX programmable power supplies are described Calibration Procedure Installation Launch...

Страница 113: ...alibration Items There are eight calibration items where you should do in the specified order VOLTAGE SET OFST VOLTAGE SET GAIN VOLTMETER SET OFST VOLTMETER SET GAIN CURRENT SET OFST CURRENT SET GAIN...

Страница 114: ...is not yet saved in the instrument EEPROM So you need commit EEPROM data Select Data Commit EEPROM menu This operation immediately commits the EEPROM so that the new data is persistent after next powe...

Страница 115: ...lowing environment Temperature 23 C 5 C Humidity 80 rh or less Warm up the RMX programmable power supply for at least 30 minutes before calibration Also ensure to warm up the DVM and shunt resistor fo...

Страница 116: ...5 5 RMX Programmable Power Supplies User Manual Connection Figure 5 1 Voltage Calibration Figure 5 2 Current Calibration DVM HI LO Output terminal Chassis terminal RMX Shunt DVM HI LO Output terminal...

Страница 117: ...ge and the voltage that can be output with rated output current are as follows Maximum output current with rated output voltage Rated output power rated output voltage Maximum output voltage with rate...

Страница 118: ...0 VAC 5 25 A Inrush Current MAX 2 70 A peak or less Power MAX 3 1100 VA Power factor TYP 1 0 99 input voltage 100 V 0 97 input voltage 200 V Efficiency MIN 1 74 or more Hold up time for power interrup...

Страница 119: ...mV RMX 4122 120 mV RMX 4123 330 mV rms 5 RMX 4120 4121 8 mV RMX 4122 25 mV RMX 4123 60 mV Rise time Rated load 100 ms No load 100 ms 1 85 VAC to 135 VAC or 170 VAC to 265 VAC fixed load 2 The amount...

Страница 120: ...to 29 4 A RMX 4122 0 to 10 5 A RMX 4123 0 to 3 675 A Setting accuracy 0 5 of setting 0 1 of rtg Line regulation RMX 4120 9 5 mA RMX 4121 4 8 mA RMX 4122 3 mA RMX 4123 2 35 mA Load regulation RMX 4120...

Страница 121: ...een activated OUTPUT LED blinks orange CV operation CV LED lights green CC operation CC LED lights red Alarm operation ALM LED lights red when a protection function has been activated ALM LED blinks r...

Страница 122: ...of the rated output voltage Overcurrent protection OCP 2 Turns the output off displays OCP and lights ALARM Setting range3 RMX 4120 7 5 to 84 A RMX 4121 2 8 to 31 36 A RMX 4122 1 to 11 2 A RMX 4123 0...

Страница 123: ...monitor voltage range 0 to 5 V or 0 to 10 V Setting accuracy 2 5 of rtg Status signal output3 OUTON STATUS Turns on when the output is on CV STATUS Turns on during CV operation CC STATUS Turns on duri...

Страница 124: ...urn the output off using a LOW 0 to 0 5 V or short circuit Output shutdown control SHUT DOWN Turns the output off with a LOW 0 to 0 5 V or short circuit Alarm clear control ALM CLR Clears alarms with...

Страница 125: ...ty bit None No flow control Program message terminator LF during reception CR LF during transmission USB Hardware Complies with the USB 2 0 specifications Baud rate 480 Mbps high speed Socket B type P...

Страница 126: ...21 4122 No abnormalities at 2000 VAC for 1 minute RMX 4123 No abnormalities at 2250 VAC for 1 minute Between output and FG RMX 4120 4121 No abnormalities at 1500 VDC for 1 minute RMX 4122 No abnormali...

Страница 127: ...0 35 368 14 49 62 2 44 M3 screw holes 4 Max screw insertion depth 8 mm 0 31 inches MAX485 19 09 422 8 16 65 43 1 69 44 1 73 MAX580 22 83 MAX35 1 38 M4 screw holes 4 Max screw insertion depth 6 mm 0 31...

Страница 128: ...terruption MIN 3 20 ms or greater DC Output Rating Output voltage4 RMX 4124 0 to 30 V RMX 4125 0 to 80 V RMX 4126 0 to 230 V RMX 4127 0 to 650 V Output current 4 RMX 4124 150 A RMX 4125 56 A RMX 4126...

Страница 129: ...mV Rise time Rated load 100 ms No load 100 ms Fall time6 Rated load RMX 4124 4125 100 ms 1 85 VAC to 135 VAC or 170 VAC to 265 VAC fixed load 2 The amount of change that occurs when the load is chang...

Страница 130: ...set 0 1 of rtg Line regulation RMX 4124 17 mA RMX 4125 7 6 mA RMX 4126 4 mA RMX 4127 2 7 mA Load regulation RMX 4124 35 mA RMX 4125 16 2 mA RMX 4126 9 mA RMX 4127 6 4 mA Ripple noise3 rms 4 RMX 4124 3...

Страница 131: ...rns off The output is on and a protection function has been activated OUTPUT LED blinks orange CV operation CV LED lights green CC operation CC LED lights red Alarm operation ALM LED lights red when a...

Страница 132: ...output current Overcurrent protection OCP 1 Turns the output off displays OCP and lights ALARM Setting range RMX 4124 15 to 168 A 10 to 112 of the rated output current RMX 4125 5 6 to 62 72 A 10 to 11...

Страница 133: ...monitor voltage range 0 to 5 V or 0 to 10 V Setting accuracy 2 5 of rtg Status signal output3 OUTON STATUS Turns on when the output is on CV STATUS Turns on during CV operation CC STATUS Turns on dur...

Страница 134: ...n circuit turn the output off using a LOW 0 V to 0 5 V or short circuit Output shutdown control SHUT DOWN Turns the output off with a LOW 0 to 0 5 V or short circuit Alarm clear control ALM CLR Clears...

Страница 135: ...ity bit None No flow control Program message terminator LF during reception CR LF during transmission USB Hardware Complies with the USB 2 0 specifications Baud rate 480 Mbps high speed Socket B type...

Страница 136: ...00 Vmax RMX 4127 600 Vmax Withstand voltage Between input and FG No abnormalities at 1500 Vac for 1 minute Between input and output RMX 4124 4125 4126 No abnormalities at 2000 Vac for 1 minute RMX 412...

Страница 137: ...0 35 368 14 49 62 2 44 M3 screw holes 4 Max screw insertion depth 8 mm 0 31 inches MAX485 19 09 422 8 16 65 43 1 69 44 1 73 MAX580 22 83 MAX35 1 38 M4 screw holes 4 Max screw insertion depth 6 mm 0 31...

Страница 138: ...art 15B Class A emissions ICES 001 Class A emissions Note In the United States per FCC 47 CFR Class A equipment is intended for use in commercial light industrial and heavy industrial locations In Eur...

Страница 139: ...nt and to NI customers For additional environmental information refer to the Minimize Our Environmental Impact web page at ni com environment This page contains the environmental regulations and direc...

Страница 140: ...to set the output voltage and output current to the required values Are you using an external contact to turn output on and off Use the external contact to turn output on If not set the external contr...

Страница 141: ...is lower than the voltage value that is specified by UVL You cannot set the output voltage to a value that is lower than the voltage that is specified by UVL Check the voltage that is specified by UVL...

Страница 142: ...ge is offset from the voltage that the RMX programmable power supply was generating when it was turned on Has 30 minutes passed since the power was turned on Warm up the RMX programmable power supply...

Страница 143: ...ture too high The overheat protection function has been activated Check the operating environment The inlet may be clogged or the fan may be broken The ALARM LED lights when the load is changed Is a l...

Страница 144: ...ddress cannot be obtained from the DHCP server Is the LAN LED lit in orange or red If it is lit in orange the RMX programmable power supply is waiting for a response from the DHCP server If it turns r...

Страница 145: ...fy your systems accuracy and reliability requirements and provides warranty sparing and calibration services to help you maintain accuracy and minimize downtime over the life of your system Visit ni c...

Страница 146: ...tions Engineers make sure every question submitted online receives an answer Software Support Service Membership The Standard Service Program SSP is a renewable one year subscription included with alm...

Страница 147: ...21 crossover point 2 8 CV power supply 2 7 D display measured value 2 1 power 2 1 setting 2 2 E electromagnetic compatibility A 22 external control 3 1 F factory default settings 2 45 fall time 2 44...

Страница 148: ...2 RMX 4127 dimensions A 21 specifications A 12 S safety specifications A 22 sensing cable connections 1 18 local 1 19 remote 1 19 terminals and functions table 1 18 series alarm 4 10 connection 4 10 e...

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