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Turn-On Checkout - 3

29

In Case of Trouble

Error Messages

Ac source failure may occur during power-on selftest or during operation. In either case, the display may
show an error message that indicates the reason for the failure.

Selftest Errors

Pressing the

Shift

and

Error

keys will show the error number. Selftest error messages appear as:

ERROR <n>, where "n" is a number listed in the following table. If this occurs, turn the power off and
then back on to see if the error persists. If the error message persists, the ac source requires service.

Table 3-1. Power-On Selftest Errors

Error No.

Failed Test

Error 0

No error

Error 1

Non-volatile RAM RD0 section checksum failed

Error 2

Non-volatile RAM CONFIG section checksum failed

Error 3

Non-volatile RAM CAL section checksum failed

Error 4

Non-volatile RAM WAVEFORM section checksum failed

Error 5

Non-volatile RAM STATE section checksum failed

Error 6

Non-volatile RAM LIST section checksum failed

Error 10

RAM selftest

Error 11 to 18

DAC selftest 1 to 8

Runtime Error Messages

Under unusual operating conditions, the front panel display may show OVLD. This indicates that the
output voltage or current is beyond the range of the meter readback circuit. If the front panel display
indicates -- -- -- -- -- -- , a GPIB measurement is in progress. Appendix C lists other error messages that
may appear at runtime.

Line Fuse

If the ac source appears "dead" with a blank display and the fan not running, first check your power
source to be certain line voltage is being supplied to the ac source. If the power source is normal, the ac
source line fuse may be defective. If the ac source has a defective fuse, replace it only once. If it fails
again, investigate the reason for the failure. Proceed as follows:

1.

Turn off the front panel power switch and remove the input power (unplug the power cord or
open the safety disconnect).

2.

Remove the fuse cover from the rear panel.

3.

Unscrew the fuse caps and remove the fuses.

4.

If any fuses are defective, replace all three with fuses of the same type (see Chapter 1).

5.

Turn on the ac source and check the operation. If it is normal. replace the fuse cover.

Maintenance Note: It is recommended that new fuses be installed every four years.

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Содержание 6814B

Страница 1: ...s with Serial Numbers Agilent 6814B 3601A 00101 through 00270 US36010101 up Agilent 6834B 3601A 00101 through 00140 US36010101 up Agilent 6843A 3540A 00101 through 00140 US35400101 up Agilent Part No...

Страница 2: ...cts returned to Customer from another country Agilent Technologies shall pay for return of products to Customer Warranty services outside the country of initial purchase are included in Agilent Techno...

Страница 3: ...ument s external markings described under Safety Symbols GROUND THE INSTRUMENT To minimize shock hazard the instrument chassis and cover must be connected to an electrical ground The instrument must b...

Страница 4: ...r disconnect the power cord or have a qualified electrician install an external switch In position of a bi stable push control Out position of a bi stable push control Caution risk of electric shock C...

Страница 5: ...A1 1992 EN 61010 1 1993 EMC CISPR 11 1990 EN 55011 1991 Group 1 Class A IEC 801 2 1991 EN 50082 1 1992 4 kV CD 8 kV AD IEC 801 3 1984 EN 50082 1 1992 3 V m IEC 801 4 1988 EN 50082 1 1992 0 5 kV Signal...

Страница 6: ...evised editions are identified by a new printing date A revised edition incorporates all new or corrected material since the previous printing date Changes to the manual occurring between revisions ar...

Страница 7: ...N 15 Inspection 15 Damage 15 Packaging Material 15 Items Supplied 15 Cleaning 15 Location 16 Bench Operation 16 Rack Mounting 16 Input Connections 16 Input Source and Line Fuse 17 Installing the Power...

Страница 8: ...ting States 53 10 Switching Between Single and Three phase Operation Agilent 6834B only 54 A SPECIFICATIONS 55 Specifications 55 Supplemental Characteristics 56 B VERIFICATION AND CALIBRATION 59 Intro...

Страница 9: ...ents of each guide for a complete list of the topics Topic Location Accessories and options Chapter 1 this guide Calibrating the ac source Appendix B this guide Front panel keys Chapter 4 this guide F...

Страница 10: ...er Fuse replacement kits 30AM for 180 235 Vac 3 phase line GPIB cables 0 5 meters 1 6 ft 1 0 meter 3 3 ft 2 0 meters 6 6 ft 3 0 meters 13 2 ft Heavy duty slide mount kit 5060 3513 10833D 10833A 10833B...

Страница 11: ...le ac voltage dc voltage frequency phase and current limit Sine square clipped sine and user definable waveforms Voltage and frequency slew control Synthesized waveform generation for high resolution...

Страница 12: ...Entry keys let you select and enter parameter values Refer to Chapter 4 for a complete description of the front panel controls Remotely programming is accomplished from either the GPIB bus or from an...

Страница 13: ...age range Appendix A documents the ac source s specifications and supplemental characteristics NOTE The load on the ac source may draw full VA at any power factor between 0 and 1 and may draw maximum...

Страница 14: ......

Страница 15: ...the unit Power Cord A power cord appropriate for your location The cord may or may not be terminated in a power plug see Options in Chapter 1 If the cord is not included contact your nearest Agilent S...

Страница 16: ...lows sufficient space at the sides and back of the unit for adequate air circulation Minimum clearances are 1 inch 25 mm along the sides Do not block the fan exhaust at the rear of the unit Rack Mount...

Страница 17: ...codes The power cords supplied with the ac source do not include a power plug Terminating connectors and a ground lug are attached to one end of the cord See Figure 2 2 while performing the following...

Страница 18: ...k has a termination for each of the output phases 1 2 3 and a floating neutral line COM for the phase return connections A separate earth ground terminal is located near the output terminals Figure 2...

Страница 19: ...14 25 0 0103 6 80 0 0016 12 30 0 0065 4 105 0 0010 10 40 0 0041 2 140 0 00064 8 60 0 0025 1 0 195 0 00040 NOTES 1 Ampacity is based on 30 C ambient temperature with conductor rated at 60 C For ambient...

Страница 20: ...connectors The sense leads are part of the ac source s feedback path and must be kept at a low resistance in order to maintain optimal performance Connect the sense leads carefully so that they do not...

Страница 21: ...ing external trigger signals to trigger the ac source Trigger OUT Generates a negative going pulse when the selected transient output has occurred Digital Connections This connector which is on the re...

Страница 22: ...r an RS 232 connector GPIB Connector Each ac source has its own GPIB bus address AC sources may be connected to the bus in series configuration star configuration or a combination of the two You may c...

Страница 23: ...sabled SYSTem RWLock Places the ac source in remote mode during RS 232 operation All front panel keys including the Local key are disabled RS 232 Data Format constant 11 bit data format one start bit...

Страница 24: ...nt and the output is suspended if DSR is false When DSR goes true transmission will resume The ac source will leave DTR false while output is suspended A form of deadlock exists until the bus controll...

Страница 25: ...following items appear on the display a A brief pattern that lights all display segments followed by the model number and the software revision number b The display then goes into the meter mode with...

Страница 26: ...entered into the ac source After pressing Enter the ac source returns to Meter mode in most cases In Harmonic or List mode the ac source displays the next point in the list Checkout Procedure WARNING...

Страница 27: ...value is entered the display returns to Meter mode which indicates that no voltage is applied to the output 5 Press Output On Off 120 V 60 Hz Turns the output on and applies 120 volts to the phase 1 l...

Страница 28: ...d restoring the output Prot turns off and CV turns on 15 Press Shift and Current CURR LEV 5 Indicates the default output current limit setting 16 Press 5 Enter CURR LEV 5 Sets the current limit to 5 a...

Страница 29: ...1 to 8 Runtime Error Messages Under unusual operating conditions the front panel display may show OVLD This indicates that the output voltage or current is beyond the range of the meter readback circu...

Страница 30: ......

Страница 31: ...description of the front panel controls front panel programming examples that describe how to program the output voltage and frequency how to measure the output how to program the output pulses and li...

Страница 32: ...only dc only or ac dc AC DC Output The ac source output coupling is ac only or ac dc AC DC l Voltage Frequency The rotary pulse generators let you set the output voltage and frequency when the ac sour...

Страница 33: ...n non volatile memory Display Command Function ADDRESS value Sets the GPIB Address INTF char Selects an interface GPIB or RS232 BAUDRATE value Selects baud rate 300 600 1200 2400 4800 9600 PARITY char...

Страница 34: ...ll be sent as well as the phase that will be monitored by the Meter and Harmonic functions At power on all phases are selected or coupled indicating that commands will be sent to all phases The presen...

Страница 35: ...existing value Meter Display Keys Metering keys control the metering functions of the ac source Press this key to access the meter menu list Display Measurement reading V reading Hz rms voltage and fr...

Страница 36: ...rate in volts second SLEW T value Set triggered voltage slew rate in volts second SLEW M char Select the voltage slew mode FIXED STEP PULSE or LIST ALC char Select the voltage sense source INT or EXT...

Страница 37: ...t the pulse duty cycle as a percentage of the pulse period PER value Set the pulse period HOLD char Set the parameter that will be held constant as the other parameters change WIDTH or DCYCLE Press th...

Страница 38: ...gramming the output Press this key to access the status menu list Note that in the following list commands ending in clear the registers when they are read For this reason the registers are read only...

Страница 39: ...imes a list repeats DWEL index value List of output dwell times FREQ index value List of output frequencies FSLW index value List of output frequency slew rates PHASE index value List of output voltag...

Страница 40: ...f the presently accessed command Until you press this key the parameters you enter with the other Entry keys are displayed but not entered into the ac source Before pressing you can change or abort an...

Страница 41: ...the maximum ac voltage that can be programmed is 300 Vrms For other waveforms the maximum may be different Procedure for Single Phase AC Sources When you turn on the ac source the default output shape...

Страница 42: ...he Voltage menu again and press Phase Select once to access Phase 2 On the Entry pad press 1 8 0 Enter VOLT 180 5 Access the Voltage menu again and press Phase Select once to access Phase 3 On the Ent...

Страница 43: ...functions in the Meter Menu by pressing the and keys 120 V 50 Hz 3 Setting a Protection Feature You can set the ac source to disable its output if it detects an overvoltage or overcurrent fault condi...

Страница 44: ...d down to 102 Vrms Action Display 1 On the Function keypad press Output On Off to enable the output The Dis annunciator will go off 0 V 60 Hz 2 Press Voltage to access the Voltage Menu On the Entry ke...

Страница 45: ...ress Pulse to access the Pulse Menu From the Entry keypad press 0 8 3 3 Enter to enter a pulse width of 83 3 milliseconds WIDTH 0833 5 Access the Pulse Menu and press to access the duty cycle command...

Страница 46: ...s Voltage to access the Voltage Menu Then press to access the voltage mode command VOLT M FIXED 2 On the Entry keypad press or to scroll through the mode parameters to obtain LIST and press Enter VOLT...

Страница 47: ...st must be accessed and cleared separately 0 V 60 Hz On three phase ac sources the voltage lists are phase selectable You can output a different voltage list for each phase To do this use Phase Select...

Страница 48: ...r followed by Shift Trigger VOLT 120 VOLT T 150 VOLT M STEP DELAY 0 DELAY 0167 INIT IMMED This example uses the phase sync mode with no delay but synchronized at 90 First access the Voltage menu and p...

Страница 49: ...0 phase 0 phase 120 phase 240 Figure 4 8 Phase Synchronization on Three phase Sources Example Display m This example synchronizes a change at 90 on phase 1 First access the Voltage menu and program th...

Страница 50: ...iggered slew rate of 50 volts second steps the voltage level to its new value 50 volts second becomes the new immediate slew rate in step mode In example a triggered slew rate of 50 volts second is us...

Страница 51: ...es the triggered slew rate at the leading edge of the pulse and the immediate slew rate at the trailing edge of the pulse First access the Voltage menu program the immediate and triggered voltage leve...

Страница 52: ...e triggered slew command If necessary reset the slew rate to a faster speed SLEW T 9 9000 E37 6 Make sure the peak current and rms current limits are set to high values In the Current menu access the...

Страница 53: ...m from the front panel All programmable settings are saved List data however cannot be saved in state storage Only one list is saved in non volatile memory Action Display To save an operating state in...

Страница 54: ...e three output terminals Additionally switching the Agilent 6834B between single phase and three phase operation causes the following actions it disables all outputs it reconfigures the current readba...

Страница 55: ...A high range 20 A high range 60 A high range 48 A high range Crest Factor current 4 4 4 3 Output Frequency Range 45 Hz 5 kHz 45 Hz 1 kHz Constant Voltage Ripple and Noise 60 dB 20 kHz 10 MHz Load Regu...

Страница 56: ...Phase Agilent 6834B in 3 phase mode N A 0 001 45Hz 1kHz N A Average Measurement Resolution rms Voltage 10 mV 10 mV 10 mV rmsCurrent 3 mA 6 mA 3 phase 2 mA 1 phase 6 mA List Dwell Time 0 4 30133 x 105...

Страница 57: ...12 with 1024 data points in each List Data 1 to 100 points for each list function GPIB Interface Capabilities Language SCPI Elgar 9012 PIP Interface AH1 C0 DC1 DT1 E2 LE1 PP0 RL1 SH1 SR1 TE6 Programm...

Страница 58: ......

Страница 59: ...tput terminals or circuits connected to the output are touched when power is applied These procedures must be performed by a qualified electronics technician or engineer trained on this equipment Equi...

Страница 60: ...oltmeters Insert suitable WAIT statements into the test program to give the ac source time to respond to test commands Perform the following tests for operation verification in the order indicated 1 T...

Страница 61: ...and 3 Press Phase Select to select the next phase Readings within specified High range limits 300 V 1 kHz 1 Multiply the DVM reading by the transformer ratio if a ratio transformer is used RMS Current...

Страница 62: ...t 65 mA _______mA Iout 65 mA Performing the Calibration Procedure Table B 1 lists the equipment required for calibration Figure B 1 shows the test setup NOTE You do not have to do a complete calibrati...

Страница 63: ...ration WARNING LETHAL VOLTAGES Ac sources can supply 425 V peak at their output DEATH on contact may result if the output terminals or circuits connected to the output are touched when power is applie...

Страница 64: ...adings by the transformer ratio if a ratio transformer is used CAL DATA 0 00 12 Press Shift Calibration scroll to CAL LEV P1 use to scroll to the P4 parameter and press Enter CAL LEV P4 13 Press Shift...

Страница 65: ...age divided by the shunt resistance Use the Entry keypad to enter the rms current value CAL DATA 0 00 26 If you are calibrating a 3 phase source press Phase Select to select the next phase and repeat...

Страница 66: ...libration will then remain unchanged Action Display 35 Press Shift Calibration scroll to CAL SAVE and press Enter CAL SAVE 36 Press Shift Calibration select CAL OFF and press Enter to exit Calibration...

Страница 67: ...rate the ac source by using SCPI commands within your controller programming statements Be sure you are familiar with calibration from the front panel before you calibrate from a controller Each front...

Страница 68: ...XY 10 9 3 Connect the 3458A to the rear terminal block 250 PRINT TABXY 10 11 4 Set the 3458A to AC VOLTS 260 PRINT TABXY 10 13 5 Turn on the AC Source 270 280 DISP Press CONT to begin AC PROGRAMMING a...

Страница 69: ...2 entered 990 OUTPUT Ac CAL DATA Ai_p2 1000 WAIT 3 1010 CLEAR SCREEN 1020 1030 Only include lines 1030 1340 if calibrating Agilent 6843 1040 1050 PRINT TABXY 22 5 CALIBRATING CURRENT MEASUREMENT Agile...

Страница 70: ......

Страница 71: ...t 5 100 Command error generic 101 Invalid character 102 Syntax error unrecognized command or data type 103 Invalid separator 104 Data type error e g numeric or string expected got block data 105 GET n...

Страница 72: ...y followed by DAB or GET before response complete 420 Query UNTERMINATED addressed to talk incomplete programming message received 430 Query DEADLOCKED too many queries in command string 440 Query UNT...

Страница 73: ...panel uart overrun 221 Front panel uart framing 222 Front panel uart parity 223 Front panel buffer overrun 224 Front panel timeout 401 CAL switch prevents calibration 402 CAL password is incorrect 40...

Страница 74: ......

Страница 75: ...ions 16 E entry keys 40 40 0 9 40 Clear Entry 40 E 40 Enter 40 error messages 29 error numbers 71 F features 11 Fixed 44 FLT connections 21 frequency control 12 front panel 31 annuncuiators 32 control...

Страница 76: ...operating states 53 remote programming 12 remote sensing 20 OVP considerations 21 repacking 15 RS 232 53 connections interface commands 23 data format 23 handshake 24 pinouts 23 S safety class 10 safe...

Страница 77: ...Index 77 rms current accuracy 61 setup 60 test record 62 verification tests 25 voltage control 12 W warranty 2 Waveform generation 50 wire current ratings 19 wiring considerations 19...

Страница 78: ...67 4245 fax 305 267 4286 Canada Agilent Technologies Canada Inc 5150 Spectrum Way Mississauga Ontario L4W 5G1 tel 1 877 894 4414 Australia New Zealand Agilent Technologies Australia Pty Ltd 347 Burwoo...

Страница 79: ...The following updates have been made to this manual since the print revision indicated on the title page 4 15 00 All references to HP have been changed to Agilent All references to HP IB have been ch...

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