Model 2003RP AC Power Source User and Programming Manual Contact Information Telephone: 800 733 5427 (toll free in North America) 858 450 0085 (direct) Fax: 858 458 0267 Email: Domestic Sales: domorders.sd@ametek.com International Sales: intlorders.sd@ametek.com Customer Service: service.ppd@ametek.com Web: www.programmablepower.com March 2011 Document No.
About AMETEK AMETEK Programmable Power, Inc., a Division of AMETEK, Inc., is a global leader in the design and manufacture of precision, programmable power supplies for R&D, test and measurement, process control, power bus simulation and power conditioning applications across diverse industrial segments. From bench top supplies to rack-mounted industrial power subsystems, AMETEK Programmable Power is the proud manufacturer of Elgar, Sorensen, California Instruments and Power Ten brand power supplies.
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Important Safety Instructions Before applying power to the system, verify that your product is configured properly for your particular application. Hazardous voltages may be present when covers are removed. Qualified personnel must use extreme caution when servicing this equipment. Circuit boards, test points, and output voltages also may be floating above WARNING (below) chassis ground. The equipment used contains ESD sensitive ports. When installing equipment, follow ESD Safety Procedures.
Product Family: California Instruments Model 2003RP Warranty Period: One Year WARRANTY TERMS AMETEK Programmable Power, Inc.
Table of Contents 1 Introduction..................................................................................................................................... 1 1.1 1.2 2 Specifications ................................................................................................................................. 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 3 Functional Controls........................................................................................................................
7 Service ......................................................................................................................................... 52 7.1 7.2 7.3 7.4 7.5 8 General ............................................................................................................................................... 52 Cleaning .............................................................................................................................................. 52 Basic Operation...........
List of Figures Figure 2-1: Available RMS Current as function of Output Voltage and Frequency. ............................. 4 Figure 2-2: Rack Mount Slides (-RMS option) position ....................................................................... 11 Figure 3-1: Model 2003RP AC Power Source .................................................................................... 12 Figure 3-2: Rear Panel View ....................................................................................................
List of Tables Table 1-1: Available models .................................................................................................................. 1 Table 3-1: Maximum Output Wiring Lengths ...................................................................................... 19 Table 4-1: Factory Default Power on Settings .................................................................................... 31 Table 6-1: Load Resistors and Current ..................................................
1 Introduction This instruction manual contains information on the installation, operation, calibration and maintenance of the 2003RP AC power source. 1.1 General Description The 2003RP AC source is a high efficiency, lightweight, three-phase, 2000 VA, programmable AC power source. In addition to the standard 2003RP model, several options are available that may change the voltage and frequency ranges of the power source.
2 Specifications All specifications at 25 2.1 5 C and 400 Hz output unless noted otherwise. Electrical Input Parameter Specification Line Voltage: 107/120 VAC ± 10% 208/230 VAC ± 10% Line Current: 35 ARMS maximum, line voltage = 96 VAC, full-load, PF = 0.6, Efficiency = 75%, (typical) Inrush Current: 185 APK at 253 VAC input line Input power factor: 0.
Parameter Specification 1 Load Regulation : ± 0.1% of full scale, 16 Hz - 500 Hz External Sense: Will compensate for up to 7% of voltage drop up to 2 kHz Line Regulation: ± 0.02% of full scale Settling time: From start of voltage change from 5.0 VRMS or higher voltage to within 2% of final value: No load: 16 ms Full load: 300 ms (16 ms to within 15% of final value) Distortion (THD into linear load): 0.5% typical, 1.0% maximum below 100 Hz 1.0% typical, 2.
Parameter Specification Frequency 2003RP: 2003RP-HV: 16.0 - 5000 Hz (see Figure 2-1) Maximum output voltage available from 45 Hz and up. Maximum voltage derates from 100% at 45 Hz to 35% at 16 Hz. 2003RP-AV: 360.0 - 5000 Hz (see Figure 2-1) Resolution: Accuracy: 0.01 Hz from 16.00 to 80.00 Hz 0.1 Hz from 80.1 Hz to 800.0 Hz 1 Hz from 801 Hz to 5000 Hz 0.02% of programmed value Temperature coefficient: ± 5 ppm per degree Celsius Stability: ± 15 ppm per year Steady State: (voltage range * 0.
2.2 Supplemental Note: Specifications listed below are typical and not guaranteed.
2.3 Measurements [Option] Note: Specifications listed below apply from 300 Hz to 500 Hz. Refer to Supplemental Specifications for frequencies outside this range. Parameter Specification Unit Available on standard unit. True RMS Current Ranges 0.000 - 4.000 0.00 – 6.00 Accuracy ARMS ARMS 0.2 % FS + 0.3 % reading Resolution 0.001 0.01 ARMS ARMS (Remote only) 0.00 – 12.00 0.0 – 20.0 APEAK APEAK Peak Current Ranges Accuracy 0.5 % FS + 0.5 % reading Resolution 0.01 0.
Parameter Specification Unit Power Factor Range 2.4 0.00 - 1.00 Accuracy 0.05 Resolution 0.01 System Specification Parameter Specification Setup storage Eight non-volatile front panel setup registers available through interface. Power-on setting register available from front panel.
2.5 2.6 Unit Protection Parameter Specification Input Overcurrent: Circuit breaker Transients: Surge protection to withstand EN61000-4,-5 levels Output Overcurrent: Constant current operation (standard) 0.1 second shutdown (constant voltage mode option) Output Short Circuit: Peak current limit Shutdown (constant voltage mode Option) Overtemperature: Automatic shutdown Mechanical Parameter Specification Dimensions: Height Width Depth Unit 13.26 48.26 56.62 cm 5.22 19 22.
2.7 Environmental Parameter Specification Operating Temp: 2.
2.9 Front Panel Controls Parameter Specification Controls: Knobs: Two knobs allow continuous change of voltage, frequency and current limit for all three phase outputs. Voltage change is inactive on single voltage range configuration units. Function keys: Keys control output state, voltage range, 7 segment LED Display mode and selected phase for liquid crystal display. Displays: Status Indicators: Two, 4 digit, 0.
2.10 Available Options 2 Option Description -AV Avionics version: 2003RP-AV 115 VRMS / 230 VRMS volt ranges 5.9 / 2.9 Amp RMS maximum current per phase Frequency range limited to 360 Hz minimum. The unit may be factory set to fixed frequency and single voltage range. The frequency range and voltage range setting can be queried over the bus if the –OP1 option is installed. -HV Higher Voltage version 2003-HV 156 VRMS / 312 VRMS volt ranges 4.3 / 2.
3 Installation and Functional Test 3.1 Unpacking Inspect the unit for any possible shipping damage immediately upon receipt. If damage is evident, notify the carrier. DO NOT return an instrument to the factory without prior approval. Do not destroy the packing container until the unit has been inspected for damage in shipment. 3.2 Power Requirements The AC Power System has been designed to operate from a single phase AC line voltage.
3.2.1 AC Line Voltage The AC Power Source has been designed to operate from either of the following AC line voltage ranges: 1) 107/115 volts 2) 208/230 volts CAUTION: The AC Power Source will be damaged if it is operated at an input voltage that is outside its configured input range. The input voltage range is set at the factory. Section 3.3 gives the procedure to change the input voltage range. The location for connection of the input line is shown in Figure 3-2. 3.2.
3.3 Input Voltage Range Selection WARNING: Voltages up to 360 VDC and 270 VAC are present in certain sections of this power source. This equipment generates potentially lethal voltages. DEATH: On contact may result if personnel fail to observe safety precautions. Do not touch electric circuits when power is applied. Servicing should only be performed by trained personnel. The input voltage range is configured by one wire.
3.3.1 Low Input Voltage Range Configuration (107/115 V) In order to change the voltage range configuration: 1. Turn off the input circuit breaker. 2. Disconnect AC input power by unplugging the power cord. 3. Remove the AC Power Source top cover by removing (17) #6-32 x 5/16” FLH screws. There are a total of 7 screws on the sides and 10 screws on the top that hold the cover. 4. The low input voltage range is set by removing the wire from CR1-AC2 and connecting it to A4-E2.
3.3.2 High Input Voltage Range Configuration (208/230 V) In order to change the voltage range configuration: 1. Turn off the input circuit breaker. 2. Disconnect AC input power at TB1. 3. Remove the AC Power Source top cover by removing (17) #6-32 x 5/16” FLH screws. There are a total of 7 screws on the sides and 10 screws on the top that hold the cover. 4. The high input voltage range is set by removing the wire from A4-E2 and connect to CR1-AC2.
3.4 Mechanical Installation The power source has been designed for rack mounting in a standard 19 inch rack. The unit should be supported from the sides with optional rack slides. See Accessory Equipment/Rack Slides in Section 1.2. The cooling fan at the rear of the unit must be free of any obstructions which would interfere with the flow of air. A 6.35 cm (2.5 inch) clearance should be maintained between the rear of the unit and the rear panel of the mounting cabinet.
3.6 Output Connections All load connections must be made at the terminal block on the rear panel. The remote sense inputs allow the power source output voltages to be monitored directly at the load and must be connected for all three phases. The remote sense wires are connected to adjacent pins for each phase on the rear panel output terminal strip.
Output Current Wire Size Maximum wire length from output to load, 1% drop 2 5.0 ARMS 0.75 mm 5.0 ARMS AWG 18 5.0 ARMS 1.0 mm 2 5.0 ARMS AWG 16 5.0 ARMS 1.5 mm 2 5.0 ARMS AWG 14 6m 20 ft 6.4 m 21 ft 8m 26 ft 8.5 m 28 ft 12 m 39 ft 14 m 45 ft Table 3-1: Maximum Output Wiring Lengths The Remote Sense inputs must be connected or an output voltage 7% higher than the programmed output will be generated. If the 2003RP is configured for constant voltage, a fault will be generated.
3.7 Output Voltage Ranges The standard 2003RP AC power source has two output voltage ranges 0-135 VAC and 0-270 VAC. The operator may switch from one range to the other with no special precautions except to remember that the output voltage will go to zero whenever a range change takes place. Certain options available on the 2003RP series may result in different voltage range values or a single voltage range only. Certain models like the 2003RP-AV may be ordered with a single voltage range only.
3.8 Functional Test CAUTION: Work carefully when performing these tests - hazardous voltages are present on the input and output during the tests. Refer to Figure 3-7 for the test setup. For -AV option units, the resistor values need to be adjusted as follows: Model 2003RP 2003RP-AV 2003RP Voltage Range Resistor Current (ARMS) 135 27 5.0 270 108 2.5 115 20 5.9 230 (if configured) 78 2.9 156 37 4.3 312 150 2.1 1.
In the event the power source does not pass the functional test, refer to the calibration procedure in Section 6 or call California Instrument‟s customer satisfaction department for further assistance. To Voltmeter 12345678 L N G GROUND NEUTRAL LINE Load Figure 3-7: Test Setup 2003RP. 3.9 Other Modes of Operation When the 2003RP is shipped from the factory, it is configured for the Constant Current Mode of operation.
4 Front Panel Operation 4.
4.1.1 Status Indicator Lights Ten LED status indicators are located directly above the right hand side 7 segment LED display. These LED‟s correspond to the following conditions: REMOTE The REMOTE LED indicates that the unit is in remote control mode. If the RS232C interface is used, the REMOTE state can be enabled by the controller using the SYST:REM command. Any time the REMOTE LED is lit, the front panel of the RP Series unit is disabled.
PF Illuminates when the 7 segment LED display shows the measured power factor. It also illuminates in the calibration mode of operation. In calibration mode, the PF LED is always lit in combination with the measurement or output function being calibrated. In normal mode of operation, only one LED in this group is on at a time. See Note. A, B, C These three LED's indicate the LED Measurement readout selection for phase A, B or C. The PHASE key may be used to cycle between the three phase readouts.
4.1.2 Control knobs Counter clockwise Clockwise DECREASE INCREASE Figure 4-3: Control Knob There are two control knobs located below the LED displays which are used to change setup parameters for voltage, frequency and current limit. The SELECT button selects the function of the right knob. The right knob will control either the frequency or the current limit as indicated by the indicator above the right LED. The left knob always controls the voltage.
SELECT The SELECT button selects the function of the right control knob and 7 segment LED display. The knob will control the output frequency and the display will show the program frequency value when the mode selection is frequency. The knob will program the current limit and the display will show its value in the current mode. The display will revert back to showing the measured current after 3 seconds from the last movement of the control knob.
4.2 How to examples... This section covers some common tasks that are often performed with an AC power source. These examples are written in a “How to...” format and provide step by step instructions on how to set up the AC Source for specific tasks. 4.2.1 Set the Output Output parameters are Voltage, Frequency and Current Limit. 1. Disable the output by pressing the OUTPUT button. The LED above the button will turn off. 2. Use the left knob to set the output voltage.
4.2.3 Display Measurement Data Measurements can be called up as follows: 1. For voltage, the left LED always displays the measured output voltage unless the knob is turned. As the knob is turned, the programmed voltage will be displayed instead. Approximately 3 seconds after releasing the knob, the display reverts back to the measured voltage. 2. All other measurements can be displayed by using the SELECT button to toggle through the available measurements.
4.2.5 Control the Output The output can be disabled or enabled using the OUTPUT button as follows: 1. Pressing the OUTPUT button when the output LED is on will open the AC source output relays. The programmed voltage setting will remain at the last program value. 2. Pressing the OUTPUT button again will close the output relay and the output voltage will revert to the last programmed value. 4.2.
4.3 Setting the Power on Initialization Values The 2003RP is supplied with default factory settings when the unit is powered up. The factory settings are: Parameter Factory default setting Voltage range Low Auto Voltage Range OFF Voltage 5.0 Volt Frequency 60 Hz ( 400 Hz on 2003RP-AV models) Current limit 5.0 amps (5.9 amps on 2003RP-AV models, 4.3 amps on 2003RP-HV models).
4.4 Current Limit Modes The 2003RP supports two modes of current limiting. In either mode, the user can set the RMS current level at which the current limit function will operate. The available current limit modes are: Constant Current (CC) mode This is the default mode as supplied from the factory. In this mode, the output voltage is automatically reduced by the AC power source to maintain the set current. Once the current drawn drops below the set limit value, the voltage is increased again.
4.6 Remote Inhibit [Option] A Remote Inhibit BNC input is located on the rear panel of the 2003RP if the -OP1 option was specified at the time of purchase. This input may be used to disable the AC source output using an external control signal. Default mode of operation If the Remote Inhibit (RI) input is left unconnected, the output of the AC source can be turned on using the OUTPUT button on the front panel or the appropriate bus command.
5 Principle of Operation 5.1 General An explanation of the circuits in the AC Source is given in this section. Refer to the block diagram of the system, Figure 5-1. 5.2 Overall Description Input power at the rear panel is routed through the EMI filter, A11, and circuit breaker to the high current rectifier, CR1, and the DC Supply assembly, A4. The various DC supply outputs then go to the Mother board, A5, then are directed to other modules.
GPIB J6 A7 AMPLIFIER A A8 AMPLIFIER B A2 PHASE B/C A9 AMPLIFIER C P3 J2 A3 RS232/ GPIB A1 CONTROLLER J3 RS232 J10 Remote Inhibit J11 J2 J7 P2 J10 J2 J8 P2 J11 J2 J9 P2 J12 J4 J1 J5 J3 Function Strobe A5 MOTHER BOARD J6 J5 E1 +300 E3 COM2 E4 E3 E6 E5 E8 E7 E4 E5 E1 E2 E3 E4 E5 E6 J2 J1 A4 DC SUPPLY A6 RANGE/RELAY A12 OUTPUT E13 E1 E14 E2 E15 E16 E1 E2 E3 1 2 4 J4 J5 J6 J2 P4 P5 P6 P2 5 6 7 1 2 4 5 6 7 1 2 4 5 6 7 A10 E2 E1 + - L1 AC L N B1
5.4 Mother Board The Mother board, module assembly A5, routes signals between the various assemblies in the power source. The Mother board also has circuits that scale the oscillator reference waveforms for the two different voltage ranges. The oscillator reference waveforms are also adjusted via potentiometers: 1. Phase A, adjust via R4, monitor at TP4 2. Phase B, adjust via R8, monitor at TP5 3. Phase C, adjust via R12, monitor at TP6 5.
Three current transformers on this assembly monitor the output current, one current transformer per output phase. Each current transformer has two burden resistors for the two different current measurement ranges. The burden resistors are selected via small relays controlled by the AMP 4 control line. Potentiometers are used to adjust each high current range burden resistor: 1. Phase A, adjust via R6 2. Phase B, adjust via R10 3. Phase C, adjust via R14 5.
CAUTION VOLTAGES UP TO 300 VAC AND 400 VDC ARE PRESENT IN CERTAIN SECTIONS OF THIS POWER SOURCE. THIS EQUIPMENT GENERATES POTENTIALLY LETHAL VOLTAGES. DEATH ON CONTACT MAY RESULT IF PERSONNEL FAIL TO OBSERVE SAFETY PRECAUTIONS. DO NOT TOUCH ELECTRONIC CIRCUITS WHEN POWER IS APPLIED.
6 Calibration Routine calibration should be performed every 12 months. Non-routine calibration is only required if a related assembly is replaced or if the periodic calibration is unsuccessful. Calibration can be performed through the front panel by putting the 2003RP in Calibration mode (CAL mode) or over the RS232C or IEEE-488 bus if the interface option is installed. For bus calibration, the PGUI32 program may be used.
6.2 Selecting Calibration Mode The 2003RP can be placed in calibration mode (CAL mode) by pressing the recessed CAL button located on the front panel using a pen or similar pointed object. Briefly pressing this button will place the 2003RP in CAL mode, indicated by the illumination of the PF LED. While in CAL mode, the front panel controls are used to adjust the various calibration parameters. Both controls and status indicators take on different functions while the unit is in CAL mode.
6.3 Routine Calibration Setup: Connect the test equipment to the power source as shown in Figure 6-1. The DMM can be connected to the common output terminal at the rear of the unit. Use the phase output for phase A, B and then C in sequence to calibrate all three phases. Never connect the load wire to the SENSE terminal at the Rear Panel terminal strip. The load must be connected to the POWER output terminal and a jumper between the POWER and SENSE terminal.
6.3.2 Measurement Calibration - Low Scale Note: Measurement calibration can be done at any output frequency setting as only one set of calibration coefficients is used for measurement calibration. However, for best results, calibrate the measurements at the frequency, which is used in most applications, e.g. 50 Hz, 60 Hz (except model 2003RP-AV) or 400 Hz. Refer to Table 6-1 for correct load resistors based on model number. Low Scale Voltage Measurement Calibration 1.
measuring the current shunt voltage (DMM 1). Note that 0.1 V reading represents 1 Amp if the recommended 100 m shunt is used. Low Scale Peak Current Measurement Calibration 1. Connect the test equipment to the power source as shown in Figure 6-2. 2. Program the output voltage to 10.0 volts. 3. Use the SELECT key to select the Peak Current Measurement calibration mode. This mode is indicated by the I PK LED. 4.
6.3.3 Measurement Calibration - Full Scale Note: Measurement calibration can be done at any output frequency setting as only one set of calibration coefficients is used for measurement calibration. However, for best results, calibrate the measurements at the frequency which is used in most applications, e.g. 50 Hz, 60 Hz (except model 2003RP-AV) or 400 Hz. Refer to Table 6-1 for correct load resistors based on model number. Full Scale Voltage Measurement Calibration 1.
Full Scale Power Measurement Calibration 1. Connect the test equipment to the power source as shown in Figure 6-2. 2. Apply the resistive load (see Table 6-1 for model and load) to the output terminals. Set the power source to low voltage range. 3. Program the output voltage to a value that produces between 3 and 3.9 amps. Do not load the output to more than 3.9 amps. 4. Use the SELECT key to select the Power Measurement calibration mode. This mode is indicated by the PWR LED. 5.
6.4.2 Current Limit Adjustment Note: If the Current Limit and High Current Measurement Range Adjustments are both adjusted, the High Current Measurement Range must be adjusted first. 1. Connect the test equipment as shown in Figure 6-2. Use full load resistance for the low voltage range. 2. Program the current to 4.5 amps. Program the output to 135 V (115 V for the –AV option, 156V and 3.9 amps for 2003RP-HV, adjust for 4.1 in step 3) on the low voltage range and 400 Hz. 3.
Figure 6-3: Internal Adjustments
6.4.3 Open Sense Adjustment Connect the test equipment as shown in Figure 6-1. NOTE: The 2003RP must be configured for the Constant Current Mode of operation for this procedure. For this mode jumpers W1 and W2 on the Controller board and W1, W3, W4, and W6 on the Phase B/C board must be removed. Disconnect the remote sense wires on the rear panel terminal strip. Connect the external AC DMM between the appropriate two output POWER terminals on the rear panel. Program the output to 100.
7 Service 7.1 General This section describes suggested maintenance and troubleshooting procedures. The troubleshooting procedure is divided into two sections. The first section deals with basic operation and connection of the equipment. The second section requires opening the unit and using the LED indicators and a simple multimeter to troubleshoot the unit down to the module level. Only a qualified electronic technician should attempt this level of troubleshooting. 7.
7.3.2 Poor Output Voltage Regulation If the AC Power Source exhibits poor voltage regulation the following item may be at fault: Table 7-3: Poor Output Voltage Regulation CAUSE SOLUTION The Remote Sense lines are not connected at the same point monitored by the external voltmeter used for load regulation check. Connect AC voltmeter to Remote Sense lines on the Rear Panel Power Output terminal strip. 7.3.3 Distorted Output Table 7-4: Distorted Output CAUSE SOLUTION Power source is grossly overloaded.
7.3.6 No Output but “Display” on Front Panel is On Table 7-7: No Output But "Display" Is On CAUSE SOLUTION “OUTPUT” switch is turned off. Press OUTPUT switch to so that LED is on. Current limit programmed down or to zero. Program current limit higher. Voltage programmed down or to zero. Turn amplitude control up. 7.3.7 Fault Lamp On If the power source Fault lamp is on, the following may be at fault: CAUSE SOLUTION Ambient temperature is too high. Operate power source between 0 and 40 C.
7.3.8 Can’t Program AC Power System on GPIB or RS232 If the power source does not respond to GPIB or RS232 programming, the following items may be at fault: 7.4 CAUSE SOLUTION The power source unit address is incorrect. Set correct address. See section 8.3. GPIB or RS232 cable is loose at power source rear panel. Check connection, tighten jack screws. The GPIB/RS232 selector switch is in the wrong position. Set DIP switch to desired function. Refer to Section 5.9 RS232/GPIB Assembly has failed.
Figure 7-1: Assembly Location
7.4.1 Oscillator Module Removal/Replacement If a fault is found that requires the replacement of the Oscillator Module (assemblies A2 and A3) follow the following steps and refer to Figure 7-1 for the module locations: 1. Turn off the front panel circuit breaker. Remove the input power from the rear panel terminal block. 2. Remove the top cover. 3. Remove the front panel knobs and nuts. The knobs are held in place with 1/16 inch Allen screws. The nuts are removed with a 1/2 inch wrench. 4.
7.5 Replaceable Parts In order to ensure prompt, accurate service, please provide the following information, when applicable, for each replacement part ordered. a. Model number and serial number of the instrument. b. California Instruments‟ part number for the sub-assembly where the component is located. (C.I. PART #) c. Component reference designator. (SEQ #) d. Component description. e. Component manufacturers' FSCM number.
SEQ# C.I.
8 Remote Control 8.1 Introduction The 2003RP can be furnished with a combination IEEE-488 and RS232C control interface at the time of purchase. This interface is part of the -OP1 option package. The interface option also includes the California Instruments Graphical User Interface program - PGUI32. This Windows™ program provides a soft front panel to the instrument when connected to a PC through the RS232C or IEEE-488 interface. Additional benefits are obtained from using the PC as a control interface.
Figure 8-1: Rear Panel View
Note: 8.3 The PGUI32 can be run in the absence of a power source. If no AC source is available, the PGUI32 can be operated in a simulation mode. The program will detect these conditions and start up in simulation mode after notifying the operator. Measurements in this case will be simulated and should not be used for any analytical purpose. IEEE Interface The 2003RP can optionally be equipped with both RS232C and IEEE-488 interfaces.
8.4 RS232C Interface A suitable cable to connect the 2003RP AC Source to a 9 pin PC-AT style serial port is supplied with the source. If you are unable to locate this cable, you need to use a cable that conforms to the wiring diagram shown in Figure 8-3. Note: This cable is not bi-directional, so it is important to mark the PC side and the AC source side of this cable. If the cable is connected in reverse, it will not operate correctly.
END IF IF esr% AND 8 THEN PRINT "*** Instrument Dependent Error Reported by AC Source ***" END IF IF esr% AND 16 THEN PRINT "*** Command Execution Error Reported by AC Source ***" END IF IF esr% AND 32 THEN PRINT "*** Command Syntax Error Reported by AC Source ***" END IF 'Clear ERR.
8.4.2 Serial Cable Diagram California Instruments AC power sources require a special RS232C cable to communicate with a PC. Standard null-modem cables obtained from a computer hardware store most likely will not work. For this reason, all California Instruments power sources that operate over RS232C are supplied with a RS232C 9 pin female to 9 pin female cable. If for some reason this cable cannot be located, the cable diagram shown in Figure 8-3 should be used when constructing a serial cable.
8.5.2 Connecting the AC Source to the PC Using IEEE-488 Connect the AC source to the PC using an IEEE-488 interface cable. A National Instruments GPIB controller card is required to use the PGUI32 program. Select the IEEE-488 interface by sliding the interface selection dip switch on the rear panel to the IEEE-488 position. Set the desired IEEE address using DIP switch position 4 through 0 on the rear panel. 8.5.3 Installing the PGUI32 Software The PGUI32 software is distributed on a set of 3.
8.6 Troubleshooting - RS232C This section provides guidelines for resolving communication problems that may occur when using the PGUI32 software under Windows . You may encounter problems when using the serial interface with the PGUI32 program that is supplied with the interface option for this source. Symptoms: 1. Unable to verify connection to the power source through RS232C interface. Time-out occurs and dialog box appears that asks if you want to switch to simulation mode.
Procedure 1. Make sure the PGUI32 program is closed and no device is using the COM port in use. 2. From the Windows desktop, right click on the “My Computer” icon which is located in the top left corner of the screen. 3. From the popup menu, select the “Properties” entry. 4. This brings up the System Properties dialog box 5. From the tabs shown at the top of the dialog box, select the “Device Manager” tab. 6. The relevant screen is shown in Figure 8-4. 7.
Resolution for Symptom 2 Execute the suggested procedure to resolve symptom 1 first. If an occasional error continues to occur while slewing the voltage or frequency slider controls in the PGUI32 program, add a command delay to the PGUI32 Registry Interface section using the following procedure. This symptom may occur on some PC‟s. Procedure 1. Close the PGUI32 program if it is still open. 2. Run the Windows Registry Editor (Regedit.exe) from the Run command line.
8.7 Troubleshooting - IEEE-488 / GPIB This section provides guidelines for resolving communication problems that may occur when using the 2003RP with or without the PGUI32 software with a IEEE-488 / GPIB interface. Symptoms: 1. Unable to verify connection to the power source through IEEE-488 interface. Time-out occurs any time an attempt is made to verify connection. 2. Communication seems to work but Error 100, Command Errors occur when sending a series of setup commands to the AC source.
Resolution for Symptom 2 The 2003RP has a limit on how fast it can process commands sent over the bus. When developing an application program that controls the 2001RP AC source, this must be considered. Specifically, if non-query commands (commands that don‟t wait for a response such as output setup commands) are sent at too high a rate, the AC source may not be able to process them. In that case, a –100 Command Error will be reported.
8.8 PGUI32 Distribution Files The installation program will install the following files in the directories specified. Note that files with the same name that already exists in these directories will not be overwritten as part of the installation process. If older files of the same name are found, they will be replaced. If you need to retain a copy of these older version files, we recommend you back these files up prior to running the installation program.
Test Sequence Program Directory Files File name Description Sample sequence test file.SEQ Sample output sequence file Note: The location of these files as well as the files themselves may change with future versions of the PGUI32. Consult the included readme file for last minute program information. 8.9 Software Registration Updates of this and other California Instruments programs are posted on a regular basis on the California Instruments web site.
9 Introduction to SCPI SCPI (Standard Commands for Programmable Instruments) is a programming language for controlling instrument functions over the RS232 or IEEE 488 bus. The same SCPI commands and parameters control the same functions in different classes of instruments. For example, you would use the same MEAS:VOLT? command to measure the AC source output voltage or the output voltage of a SCPI-compatible Multimeter. 9.
The SCPI Command Tree As previously explained, the basic SCPI communication method involves sending one or more properly formatted commands from the SCPI command tree to the instrument as program messages. The following figure shows a portion of a subsystem command tree, from which you access the commands located along the various paths (you can see the complete tree in appendix A).
The entire message would be: SOUR:VOLT:RANG 150;LEV 115. The message terminator after LEVel 115 returns the path to the root. Note: The 2003RP interface buffer is limited to 45 characters + [LF]. As such, compound commands should be used with care to make sure they do not exceed this message length limit. Moving Among Subsystems In order to combine commands from different subsystems, you need to be able to restore the active path to the root. You do this with the root specifier (:).
Combining Message Units The following command message is briefly described here, with details in subsequent paragraphs.
Header Convention In the command descriptions in chapter 10 of this manual, headers are emphasized with boldface type. The proper short form is shown in upper-case letters, such as DELay. Header Separator If a command has more than one header, you must separate them with a colon (SYSTem:ERRor LIMit:FREQuency:LOW). Optional Headers The use of some headers is optional. Optional headers are shown in brackets, such as VOLTage[:LEVel] 100.
9.5 SCPI Data Formats All data programmed to or returned from the AC source is in ASCII. The data type may be numerical or character string. Numerical Data Formats Symbol Data Form Talking Formats Digits with an implied decimal point assumed at the right of the leastsignificant digit. Examples: 273 Digits with an explicit decimal point. Example:.0273 Digits with an explicit decimal point and an exponent. Example: 2.73E+2 Boolean Data.
10 SCPI Command Reference Where appropriate, related commands or queries are included. These are listed because they are either directly related by function, or because reading about them will clarify or enhance your understanding of the original command or query. This chapter is organized as follows: Subsystem commands, arranged by subsystem IEEE 488.2 common commands 10.1 Subsystem Commands Subsystem commands are specific to AC source functions. They can be a single command or a group of commands.
10.2 Calibration Subsystem The commands in this subsystem allow you to do the following: Enable and disable the calibration mode Calibrate all measurement circuits and store new calibration coefficients in nonvolatile memory.
10.2.2 Measurement Calibration All measurement calibrations are performed by adjusting the measurement reading up or down using a calibration coefficient. The coefficient value ranges from -127 (adjust full-scale downward, zero upward) to + 127 (adjust full-scale upward, zero downward).
CALibrate:MEASure:POWer[:FSCale] This command affects the calibration of the power measurement at full scale. Command Syntax Parameters Examples Query Syntax Returned Parameters Related Commands CALibrate:MEASure:POWer[:FSCale] (value range -127 to +127) CAL:MEAS:POW 78 CALibrate:MEASure:POWer? (value range -127 to +127) CALibrate:MEASure:CURRent CALibrate:MEASure:POWer:ZERO This command affects the calibration of the power measurement zero offset.
10.2.3 Output Calibration The AC voltage output calibration is performed by adjusting the output up or down using a calibration coefficient. The coefficient ranges from -127 (adjust upward) to + 127 (adjust downward). An external traceable reference AC voltmeter should be used for this purpose. CALibrate[:SOURce]:VOLTage This command will set the calibration coefficient for the AC full scale output voltage.
10.3 Measurement Subsystem This subsystem programs the measurement capability of the RP Series AC source. To select the desired phase, use the INST:NSEL command before the measurement command. Once selected, a phase selection remains in effect until the next INST:NSEL command.
MEASure:CURRent:AMPLitude:MAX? This query returns the peak value of the output AC current being sourced at the output terminals. Note that the output relay must be closed to obtain current flow. The peak current measurement circuit uses a sample and hold method and latches the highest peak current value found since the last peak measurement reset command.
MEASure:POWer[:REAL]? This query returns the true power delivered to the unit under test by the AC source. Note that the output relay must be closed to obtain current flow. Query Syntax Parameters Examples Returned Parameters Related Commands MEASure:POWer[:REAL]? None MEAS:POW? MEAS:VOLT? MEAS:CURR? MEASure:POWer:APParent? This query returns the apparent power delivered to the unit under test by the AC source. Note that the output relay must be closed to obtain current flow.
10.4 Instrument Subsystem The Instrument subsystem controls the selected phase of the AC power source for configurations capable of operating in three phase mode. Subsystem Syntax INSTrument :COUPle 1 | 0 :NSELect 1 | 2 | 3 Couples or uncouples commands Selects phase A, B or C using numeric references INSTrument:COUPle This command may be used to couple all output phases in three phase mode. For the 2003RP, this command only applies to the OUTPut:DROP command.
10.5 Source Subsystem This subsystem programs all the output parameters of the RP Series AC source. Subsystem Syntax [SOURce:] CURRent: VOLTage: [LEVel] RANGe: [LEVel] AUTO FREQuency: Set the rms current limit in amps. Set the rms output voltage value in volts. Set the output voltage range. Enables or disables the AUTO range mode. Set the output frequency value in Hz. [SOURce:]CURRent This command sets the rms current limit of the output.
[SOURce:]FREQuency This command sets the frequency of the output sinewave. Command Syntax Parameters Unit *RST Value Examples Query Syntax Returned Parameters Related Commands [SOURce:]FREQuency range specified by the LIM:FREQ:LOW and LIM:FREQ:HIGH commands Hz (Hertz) defined by PON FREQ 50 FREQuency? LIM:FREQ;LOW? LIM:FREQ:HIGH? [SOURce:]VOLTage This command programs the AC rms output voltage level of the power source.
[SOURce:]VOLT:RANGe[:LEVel] This command sets the voltage range of the power source. Two voltage ranges are available: a 135 volt range and a 270 volt range. However, 2003RP units with optional voltage ranges (2003RP-HV) are available as well. In this case, the actual voltage range values will be different. To determine the actual range values, use the query format of the RANGE command. The returned values for high and low range (e.g. 135 and 270) should be used to change range.
[SOURce:]VOLT:RANGe:AUTO This command sets the AC source range to the AUTO mode. While in AUTO mode, the AC source automatically switches to the optimal voltage range for the voltage programmed. Note that switching voltage ranges causes the output to be interrupted momentarily. If power to the unit under test cannot be interrupted, the AUTO range should not be used. To determine the actual voltage range in which the unit is operating, the VOLT:RANG? command query can be used.
OUTPut:DROP The output drop command may be used to interrupt the voltage to the UUT without opening the output relay. This method uses an electronic means of interrupting the AC source output which enables short interruptions of as little as 1 ms or as long as 4000 s. In addition to short interruption times, the drop command can be set to use any of four start phase angles at which to execute the voltage drop. The parameter passed with the OUTP:DROP command is the drop duration in seconds.
Example: Individual Phase Loss Test The following command sequence will drop the output of phase A only for 10 cycles at 400 Hz. /* Set up sequence VOLT 115;FREQ 400 INST:COUP 0 INST:NSEL 1 OUTP 1 OUTP:STAR:STAT 1 OUTP:STAR:PHAS 90 OUTP:DROP 0.
OUTPut: STARt[:STATe] The output start state command is used to enable or disable the start phase logic of the AC source controller. If disabled (State = 0), any voltage drops with the OUTP:DROP command or voltage changes with the VOLT command are executed immediately without regard for the phase angle of the output sinewave. If enable (State = 1), any voltage drops or voltage changes take place at one of four user specified phase angles. See the OUTP:STAR:PHAS command for available phase angle settings.
10.7 Limit Subsystem This subsystem controls the voltage frequency and current limit of the power source. These limits are set at the factory and depend on the power source rating. It is not accessible by the user. The query format is accessible however.
LIMit:VOLTage? This command queries the maximum voltage the power source will operate at in the high voltage range. For 2003RP-AV models configured for single voltage range, only one range is available. In this case, this command will return the value for the only available voltage range. The presence of a single range configuration can be derived from the limit value returned. If the voltage limit value is less than 201 volt, the 2003RP is configured for single voltage range operation.
10.9 System Commands The system commands control the system level functions of the AC Source. Subsystem Syntax SYSTem: ERRor? KLOCk LOCal PON REMote SAVE Returns the error number and error string Keyboard Lock. Sets the power on REMOTE/LOCAL state.
SYSTem:REMote This command sets the interface in the Remote state, which disables all front panel controls. This command only applies to the RS232C interface. If IEEE 488 is used, the remote/local status is determined by the REN line on the IEEE 488 interface. Command Syntax Parameters Example Related Commands SYSTem:REMote None SYST:REM SYST:LOC SYSTem:PON This command is used to define the register value the power source will use to initialize its parameters at power-up.
10.10 Common Commands Common commands begin with an * and consist of three letters (command) or three letters and a ? (query). Common commands are defined by the IEEE 488.2 standard to perform some common interface functions. The power source responds to the required common commands that control status reporting, synchronization, and internal operations. RP Series units also respond to optional common commands that control stored operating parameters. Common commands and queries are listed alphabetically.
10.10.1 *CLS This command clears the following registers (see chapter 12 for descriptions of all status registers): Standard Event Status Status Byte Error Queue Command Syntax Parameters 10.10.2 *CLS None *ESE This command programs the Standard Event Status Enable register bits. The programming determines which events of the Standard Event Status Event register (see *ESR?) are allowed to set the ESB (Event Summary Bit) of the Status Byte register.
10.10.3 *ESR? This query reads the Standard Event Status register. Reading the register clears it. The bit configuration of this register is the same as the Standard Event Status Enable register (see *ESE). Query Syntax *ESR? Parameters None Returned Parameters (Register value) Related Commands *CLS *ESE *ESE? If the *ESR? returns the value of the status bits in the ESR register. Refer to Table 10-3 for the status bits and their meaning.
10.10.4 *IDN? This query requests the source to identify itself. It returns the data in four fields separated by commas. Note that any installed options such as –AV are not reflected in the *IDN? query response. The presence of these options that may affect the power source‟s capabilities must be determined by querying the Limit system. See section 10.7. Query Syntax Returned Parameters Example *IDN? Field Information CI Manufacturer xxxxxx Model number and letter nnnnnn Serial number or 0 Rev.
10.10.6 *RST This command resets the AC source to a setting defined by the values in the register defined by PON if valid or by the following factory-defined states: Table 10-4: *RST Default Parameter Values Item Value Item Value VOLT 5.0 V FREQ 60 Hz CURR 5.0 A VOLT:RANGe:LEVel 135 V VOLT:RANGe:AUTO 0 (OFF) OUTP 0 (OFF) DISP:MODE 1 (FREQ) OUTP:STARt:STATe 0 (OFF) OUTP:STARt:PHASe 0 NOTE: The factory defaults cannot be used on units with the -AV option.
10.10.7 *SAV This command stores the present state of the AC source to a specified location in memory. The RP Series offers eight non-volatile memory locations for storing instrument setups. Command Syntax Parameters Related Commands 10.10.8 *SAV 0 through 7 *RCL *RST *SRE This command sets the condition of the Service Request Enable Register. This register determines which bits from the Status Byte Register (see *STB for its bit configuration) are allowed to set the Master Status Summary (MSS).
11 Programming Examples 11.1 Introduction This chapter contains examples on how to program the AC source. Simple examples show you how to program: Output functions such as voltage and frequency Measurement functions The examples in this chapter use generic SCPI commands. See Section 9 for information about encoding the commands as language strings. Where appropriate, optional commands are shown for clarity in the examples. 11.
Programming the Output Power-on Initialization When the AC source is first turned on, it wakes up with the output state defined by the PON register number. If the register number or the register has no valid data, the AC source initializes to the following state. VOLT 5.0 FREQ 60 OUTP 0 VOLT:RANG 135 The following commands are given implicitly at power-on: *RST *CLS *SRE 128 *ESE 0 *RST is a convenient way to program all parameters to a known state.
Turning on output voltage for all three phases at a specified phase angle The following command sequence will turn the output voltage on at a specified phase angle. This may be required to measure worst case inrush current.
To measure the RMS current, use: MEAS:CURR? To measure the peak current, use: MEAS:CURR:AMPL:RES MEAS:CURR:AMPL:MAX? /* resets track and hold for peak curr. meas. /* It may be need to turn the output on or program /* as specific voltage at this time before taking a /* peak current reading. /* retrieves peak current reading.
12 Status Registers You can use status register programming to determine the operating condition of the AC source at any time. For example, you may program the AC source to generate an MSS bit when an event such as a current limit occurs. When the MSS bit is set, your program can then act on the event in the appropriate fashion. Standard event status Event Enable Logic *ESR? *ESE n.u. n.u. QYE DDE EXE CME n.u.
12.2 Standard Event Status Group This group consists of an Event register and an Enable register that are programmed by Common commands. The Standard Event register latches events relating to interface communication status. It is a read-only register that is cleared when read. The Standard Event Enable register functions similarly to the enable registers of the Operation and Questionable status groups. Command *ESE *ESR? Action programs specific bits in the Standard Event Enable register.
12.4 Examples The following section contains examples of commonly used operations involving the status registers. You can determine the reason for an MSS bit set by the following actions: Step 1 : Determine which summary bits are active. Use: *STB? Step 2 : Read the corresponding Event register for each summary bit to determine which events caused the summary bit to be set. Use: *ESR? Note: When an Event register is read, it is cleared. This also clears the corresponding summary bit.
Appendix A: SCPI Command tree Command Syntax Tree Root Level 1 CALibrate Level 2 :STATe :MEASure Level 3 Level 4 :CURRent [:FSCale] :ZERO [:FSCale] :ZERO [:FSCale] :ZERO [:FSCale] :ZERO :PCURrent :POWer :VOLTage [:SOURce]:VOLTage INSTrument :COUPling :NSELect [SOURce] :CURRent :FREQuency :VOLTage OUTPut MEASurement [:RELay] :DROP :STARt [:LEVel] :RANGe [:STATe] :PHASe :CURRent? :AMPLitude :POWer :CREStfactor :RANGe [:REAL]? :APParent? :PFACtor? :VOLTage? DISPlay :MODE SYSTem :PON :REMo
User and Programming Manual - Rev N California Instruments Appendix B: SCPI Conformance Information SCPI Version The RP Series AC power sources conform to SCPI version 1990.0.
User and Programming Manual – Rev N California Instruments Appendix C: Error Messages Error Number 0 Error Message String Error Causes "No error" -100 "Command error" Generally the result of sending a command that uses incorrect syntax. This same error may result from the inability of the AC source to process successive GPIB non-query commands sent to it. To avoid this condition, it is necessary for the application programmer to insert a 20 msec delay between commands.
User and Programming Manual - Rev N California Instruments Index A F Acoustic ............................................................. 9 Altitude .............................................................. 9 factory default power on setting .............................. 31 Finish paint............................................................... 8 form End-user feedback ...................................... 60 formats data .............................................................
User and Programming Manual – Rev N software ....................................................... 66 INSTrument:COUPle ....................................... 88 INSTrument:NSELect ...................................... 88 Insulation ........................................................... 9 Introduction ........................................................ 1 Isolation Voltage ................................................ 2 K keyboard lock out....................................................
User and Programming Manual - Rev N California Instruments RS232C ....................................................... 63 Transients Input ............................................................... 8 troubleshooting ................................................ 52 V Vibration ............................................................ 9 Voltage specification ................................................... 2 VOLTage .........................................................
