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Agilent Technologies E8401A Скачать руководство пользователя страница 46

44

Servicing Your Mainframe

Chapter 3

Isolating Problems

Replacing Assemblies

This section contains instructions for replacing the basic monitor, power
supply, power supply fan, and impeller.These assemblies are available from
Agilent under the part numbers shown in Table 3-2. Contact the Agilent
TMO Business Center at 1-800-829-4444 to obtain replacement assemblies.

Table 3-1. Isolating Problems Within the Agilent E840xA Mainframe

Symptom

Action

Flashing Voltages Indicator

One or more backplane voltages may be out of specification. Check
diagnostic connector pins 1, 2, 3, 4, 14,15,16. Check for a loose cable
between the basic monitor assembly and the backplane. Replace power
supply if any voltage remains out of specification.

Flashing Temperature Indicator

Power supply temperature is high. Mainframe is nearing automatic shutdown.
Check for proper air flow and clearance around the power supply fan(s).

Flashing Fans Indicator

Power supply fan or mainframe impeller has failed. Visually inspect to
determine which fan is not rotating. Turn off mainframe to avoid possible
overheating. Power supply fans are not individually replaceable; replace the
power supply.

Monitor indicators are off and
fans do not operate when On
button is pressed.

Check for a loose cable between the basic monitor assembly and the
backplane. Replace the basic monitor board.

No monitor indicators when
mainframe is turned on.

Check diagnostic connector pins 1, 2, 3, 4, 13, 14, 15, 16 to determine if
backplane voltages are within specification and power supply and backplane
impeller are functioning. Replace the basic monitor PC board.

The SYSFAIL indicator will come on and remain on when a VXI module installed in the mainframe fails.

Table 3-2. Agilent E8400A Replacement Assemblies

Assembly

Agilent E8401A

Part Number

Agilent E8403A

Part Number

Basic Monitor

E8400-66502

E8400-66502

Power Supply

E8401-69204

500 W Power Supply

Exchange Assembly

E8403-69204

1000W Power Supply

Exchange Assembly

Impeller (backplane fan)

E8400-68501

E8400-68501

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Содержание E8401A

Страница 1: ...d Wide Web at http www agilent com find products For related information System installation hardware software VXIbus Configuration Guide Supplied with Agilent Command Module Embedded Controllers and...

Страница 2: ......

Страница 3: ...ing C Size Instruments 11 Installing A and B Size Instruments 12 Front Panel Features 13 Diagnostic Connector 14 5VC pin 6 15 12VC pin 7 15 5V STDBY pins 8 21 15 SYSRESET pin 10 15 ACFAIL pin 23 15 Us...

Страница 4: ...Cover 46 Replacing the Basic Monitor Board 47 Replacing the Agilent E8401A Power Supply 48 Replacing the Agilent E8403A Power Supply 49 Replacing the Impeller 50 Replacement Power Cords 51 Appendix A...

Страница 5: ...O THE EXTENT ALLOWED BY LOCAL LAW THE ABOVE WARRANTIES ARE EXCLUSIVE AND NO OTHER WARRANTY OR CONDITION WHETHER WRITTEN OR ORAL IS EXPRESSED OR IMPLIED AND AGILENT SPECIFICALLY DISCLAIMS ANY IMPLIED W...

Страница 6: ...repaired fuses or short circuited fuse holders Keep away from live circuits Operating personnel must not remove equipment covers or shields Procedures involving the removal of covers or shields are fo...

Страница 7: ...to obtain the Declaration of Conformity Go to http regulations corporate agilent com DoC search htm You can then search by product number to find the latest Declaration of Conformity Alternately you...

Страница 8: ...6 Notes...

Страница 9: ...al features of the Agilent E840xA mainframes include Mainframe monitoring for verification of backplane voltage conditions mainframe temperatures fan and impeller operation State of the art cooling te...

Страница 10: ...accessible to the operator at all times When the Agilent E840xA mainframes are mounted in a system cabinet the power cord need not be accessible since the cabinet must have its own disconnect device P...

Страница 11: ...ounding lug and toothed washers or toothed lug as shown in the Figure 2 Attach the other end of the wire to a permanent earth ground using toothed washers or a toothed lug WARNING For protection from...

Страница 12: ...nts which combine to create a virtual instrument e g a scanning multimeter and instruments which access the backplane local bus should be installed in adjacent slots 1 To prevent damage to the VXI ins...

Страница 13: ...frame chassis During installation tighten the instrument s retaining screws to secure the instrument to the mainframe and to make the ground connection Figure 1 2 Installing C Size Instruments in the...

Страница 14: ...ly devices which have the P1 connector Agilent E1407A A B Module Carrier extends the P1and P2 connectors on the VXIbus backplane This carrier is recommended for B Size slave only devices which have th...

Страница 15: ...e cooling fans are operating at full speed Var iable the power supply and mainframe cooling fans are providing adequate cooling default setting Fan speed is a function of the power supply temperature...

Страница 16: ...0 C with a rise of 10 mV per degree centigrade 12 Ref Temp Output voltage proportional to backplane temperature 0 VDC at 0 C with a rise of 10 mV per degree centigrade A function of the ambient temper...

Страница 17: ...d other circuits when the mainframe is in standby mode SYSRESET pin 10 This pin provides an extension of the VXI backplane SYSRESET signal line It can be used to monitor for SYSRESET or to send a SYSR...

Страница 18: ...ont panel On Stdby switch With the On Stdby switch in the Stdby off position connecting pin 5 to pin 18 on the diagnostic connector turns the mainframe on Disconnecting pin 5 from pin 18 turns the mai...

Страница 19: ...sistor heat damage may prevent the resistor from being re installed to re enable the On Stdby switch To access the basic monitor board and resistor 1 Turn off the mainframe and remove the power cord 2...

Страница 20: ...m the board by gently pressing the tips of the soldering irons together 5 Save the resistor in order to re enable the On Stdby switch Again heat damage may prevent the resistor from being re installed...

Страница 21: ...Adapter Kit for recess flush or forward rack mounting Option 923 Agilent E8400 80923 Flush Rack Mount Kit Option 924 Agilent E8400 80924 VXIplug play VPP 8 Compatible Rack Mount Kit Option 925 Agilen...

Страница 22: ...20 Getting Started Chapter 1...

Страница 23: ...standard EIA cabinets using the rack mount adapter options and support rail or rack slide kit shown in Table 2 1 When rack mounting the mainframe you must order an adapter option and the rail or rack...

Страница 24: ...6 4 Adapter to Mainframe Screws m5x8 pan head 0515 0979 4 Adapter Dress Screws 0570 1577 4 Channel Nuts for adapter dress screws 0590 0804 Agilent E840xA VXIplug play Compliant Adapter Option 925 kit...

Страница 25: ...is only compatible with Agilent cabinets The following procedures apply to all adapters with adapter specific information noted where necessary Note If you ordered Cable Tray Option 914 refer to page...

Страница 26: ...using the Agilent E840xA VXIplug play Compliant adapters Option 925 position the adapters such that all three mounting holes are directly over holes on the rack s vertical rails and that the adapter...

Страница 27: ...he support rails must be positioned behind the bottom channel nuts installed in Step 3 Figure 2 3 Use four channel nuts and the four 0 5x10 32 support rail to rack pan head screws to secure the rail F...

Страница 28: ...23 the mainframe can be recess mounted up to 270 7 mm 10 6 inches or extended out from the rack up to 147 6 mm 5 8 inches in 12 3 mm approximately 1 2 inch increments The rack mount adapters for the V...

Страница 29: ...on contains instructions for mounting the Agilent E840xA mainframe in an EIA cabinet using the rack slide kit p n 1494 0411 The rack slide kit which is used with either the Standard adapters Option 92...

Страница 30: ...r holes over center holes on the vertical rail Figure 2 6 Note If you are using the Agilent E840xA VXIplug play Compliant adapters Option 925 position the adapters such that all three mounting holes a...

Страница 31: ...le on the inside vertical rail Figure 2 7 Install a second channel nut on the inside rail four holes above the first nut Repeat for the other rail Install channel nuts on the corresponding holes on th...

Страница 32: ...tion will be connected to the mainframe in Step 7 Slide the intermediate section back into the stationary section Figure 2 7 Positioning the Rack Slides using Option 923 standard adapters Left Vertica...

Страница 33: ...9 Figure 2 8 Removing the Rack Slide Chassis Section from the Intermediate Section Depress From Back Side To Remove Rack Front Rack Rear Stationary Section Stationary Section Chassis Section Right Ra...

Страница 34: ...screw attaching the rack slide adapter may have to be removed 8 Attach the chassis sections to the rack mount adapters using four m5x8 flat head screws per side Figure 2 10 9 If additional rack space...

Страница 35: ...or when mounted in a standard EIA cabinet The tray is compatible with the support rail Agilent E3664A and rack slide Agilent p n 1494 0411 kits Note If you ordered the support rail Agilent E3664A or r...

Страница 36: ...tomer supplied interface panel The maximum height of the panel must be 41 275 mm for a one EIA rack unit cable tray position or 85 725 mm for a two EIA rack unit cable tray position The panel width ca...

Страница 37: ...r bottom openings only Procedure 1 Recess mount the mainframe a minimum of 111 mm 4 36 inches using the Standard Adapter kit and either the support rail kit page 23 or rack slide kit page 27 Note For...

Страница 38: ...for squareness and clearance by holding the door in place while tightening the dress screws 6 Adjust the latch keeper so that the door latches as it makes contact with the rubber door stops Note Once...

Страница 39: ...hassis shield guides Figure 2 13 Chassis shields should be installed on both sides of an instrument generating interference noise or installed on both sides of a sensitive instrument 1 Insert groundin...

Страница 40: ...nd Option Installation Chapter 2 Figure 2 13 Installing the Grounding Springs and Chassis Shield VXI module guide grounding spring socket chassis shield guide use a small screw driver to secure spring...

Страница 41: ...mpliance with EN55011 and CISPR11 Refer to the instrument documentation to determine if shields are required WARNING Do not install backplane connector shields while the mainframe is turned on or plug...

Страница 42: ...each into the mainframe Placing a sheet of paper under the backplane connectors will catch screws if they fall 3 Tighten the screws by turning them clockwise The screws are thread forming and will go...

Страница 43: ...l the bottom Air Filter Bracket as shown Use the two pan head screws included with the Air Filter Kit 3 Install the Air filter Carefully place the filter into the bottom bracket 4 Attach the top brack...

Страница 44: ...42 Rack Mounting and Option Installation Chapter 2...

Страница 45: ...air of the Agilent E840xA mainframes is limited to replacement of the Basic Monitor printed circuit PC assembly power supply and impeller module fan assemblies WARNING There are no serviceable parts i...

Страница 46: ...ashing Fans Indicator Power supply fan or mainframe impeller has failed Visually inspect to determine which fan is not rotating Turn off mainframe to avoid possible overheating Power supply fans are n...

Страница 47: ...the 14 screws from the rear panel 2 The rear panel hinges at it top rotate the panel upward Pull the panel out from the mainframe 3 To replace the panel insert the three tabs into the slots at the top...

Страница 48: ...cord 2 Remove the rear panel Refer to Removing the Rear Panel from the Mainframe on page 45 for instructions 3 Remove the mainframe cover by removing the ten m3x6 flat head torx screws five on each s...

Страница 49: ...me Refer to Figure 3 3 4 Remove the two male female standoffs connecting the Diagnostic connector to the mainframe chassis 5 Remove the ribbon cable and the two m3x8 torx screws from the basic monitor...

Страница 50: ...e on page 45 for instructions 3 Gently pull the supply out from the connectors on the backplane adapter board 4 Install the exchange power supply Keep the replacement power supply to the far right in...

Страница 51: ...rings on the power supply gently pull the supply out from the plastic connectors on the backplane adapter board Do not carry the supply using the rings 4 Install the exchange power supply Keep the rep...

Страница 52: ...Figure 3 6 Note the position of the connector for re installation Caution Static sensitive components on the mainframe backplane are exposed when the impeller cover is removed Use care when removing...

Страница 53: ...r use a cord with the same voltage and current ratings Power cords supplied by Agilent have polarities matched to the power input socket on the instrument L line or active conductor also called live o...

Страница 54: ...52 Servicing Your Mainframe Chapter 3...

Страница 55: ...the Agilent E1403 or E1407 Adapters Mainframe Dimensions Height 352 mm 13 9 inches 8 EIA rack units Width 424 5 mm 16 7 inches Depth 631 mm 24 9 inches Weight with no modules installed E8401A approxim...

Страница 56: ...down b Total output before thermal protection shutdown or safety limitation E8401A E8403A Voltage Peak Current IMP a b Dynamic Current IMD a c Peak Current IMP a b Dynamic Current IMD a c 5V 50A 5A 90...

Страница 57: ...voltage 90VAC the mainframe may not turn on properly Total Input Power may be estimated by the following expression 1 4 Output Power 70W Notes Total Power Input in Watts or VA Power Factor Corrected O...

Страница 58: ...ng back pressure performance insures airflow through dense modules Separate power supply cooling fan s provides an independent air path for reliable cooling of power supply Cooling Specification Chart...

Страница 59: ...Speed Mode Fan Speed increments through 5 discrete speeds as a function of power supply temperature and reference temperature Reference temperature pins 11 12 of Diagnostic Connector is measured on t...

Страница 60: ...ace mount construction and no sockets for maximum reliability Basic Monitor Specifications Indicators Power Stdby Glows amber in Standby and line connected Power On Glows green when On Monitor Supply...

Страница 61: ...ature Range 0 C to 55 C Storage Temperature Range 40 C to 75 C Humidity Operating Humidity Range Up to 95 RH from 0 C to 40 C Up to 65 RH from 40 C to 55 C Storage Humidity Range Up to 95 RH from 0 C...

Страница 62: ...ailable Chassis Shield Kit E8400 80919 per VXI Specification Rev 1 4 B 7 3 4 The chassis shield is used to provide additional isolation or shielding between noisy or sensitive modules This may be usef...

Страница 63: ...ode is full shutdown Recovery occurs when the fault condition is removed and power of on standby is cycled Repair Diagnosis and Troubleshooting through the front panel monitor and connector MTTR Power...

Страница 64: ...62 Agilent E8401A E8403A Appendix A...

Страница 65: ...nd connection 9 Environmental Specifications 59 F Front Panel 13 Fuse 43 G General Specifications 53 grounded shielding 37 grounding the mainframe 9 I Input Power Requirements 55 installing the backpl...

Страница 66: ...monitor board 47 replacing the impeller 50 replacing the power supply 48 49 restricted rights statement 3 S slide rails 27 Specifications 53 Acoustical Noise 58 Airflow Path 58 Backplane 58 Basic Moni...

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