Agilent 75000 SERIES C Agilent E1463A 32-Channel, 5-Amp, Form C Switch Service Manual Copyright© Agilent Technologies, Inc.
Contents Agilent E1463A Form C Switch Service Manual Warranty . . . . . . . . . . Safety Symbols . . . . . . WARNINGS . . . . . . . . Declaration of Conformity . User Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3. Replaceable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Replaceable Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Chapter 4. Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Introduction . . . . . . . . . . . . . . . . . . Repair Strategy . . . . . . . . . . . . . . . . Equipment Required .
Certification Agilent Technologies certifies that this product met its published specifications at the time of shipment from the factory. Agilent Technologies further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology (formerly National Bureau of Standards), to the extent allowed by that organization’s calibration facility, and to the calibration facilities of other International Standards Organization members.
Printing History The Printing History shown below lists all Editions and Updates of this manual and the printing date(s). The first printing of the manual is Edition 1. The Edition number increments by 1 whenever the manual is revised. Updates, which are issued between Editions, contain replacement pages to correct the current Edition of the manual. Updates are numbered sequentially starting with Update 1. When a new Edition is created, it contains all the Update information for the previous Edition.
Declaration of Conformity Declarations of Conformity for this product and for other Agilent products may be downloaded from the Internet. There are two methods 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 can go to the product web page (www.agilent.
Notes 6 Agilent E1463A 32-Channel, 5-Amp, Form C Switch Module Service Manual
Notes Agilent E1463A 32-Channel, 5-Amp, Form C Switch Module Service Manual 7
Notes 8 Agilent E1463A 32-Channel, 5-Amp, Form C Switch Module Service Manual
Chapter 1 General Information Introduction This manual contains information required to test, troubleshoot, and repair the Agilent E1463A 32-Channel Form C Switch Module (see Figure 1-1). Figure 1-1.
Relay Life Electromechanical relays are subject to normal wear-out. Relay life depends on several factors. The effects of loading and switching frequency are briefly discussed below: Relay Load. In general, higher power switching reduces relay life. In addition, capacitive/inductive loads and high inrush currents (e.g., when turning on a lamp or motor) reduce relay life. Exceeding the specified maximum inputs can cause catastrophic failure. Switching Frequency. Relay contacts heat up when switched.
Replacement Strategy The replacement strategy also depends on the application. If some relays are used more often, or at higher load, than the others, the relays can be individually replaced as needed. If all of the relays see similar loads and switching frequencies, the entire circuit board can be replaced when the end of life approaches. The sensitivity of the application should be weighed against the cost of replacing relays with some useful life remaining.
WARNING GROUNDING REQUIREMENTS. Interruption of the protective (grounding) conductor (inside or outside the mainframe) or disconnecting the protective earth terminal will cause a potential shock hazard that could result in personal injury. (Grounding one conductor of a two-conductor outlet is not sufficient protection.) IMPAIRED PROTECTION. Whenever it is likely that instrument protection has been impaired, the mainframe must be made inoperative and be secured against any unintended operation.
CAUTION MAXIMUM INPUTS. The maximum voltage that can be applied to any terminal is 125 V dc (250 Vac rms). The maximum current per channel or common is 5 A DC or ac rms. The maximum power that can be applied to any channel or common is 150 W or 1250 VA. STATIC ELECTRICITY. Static electricity is a major cause of component failure. To prevent damage to the electrical components in the Switch Module, observe anti-static techniques whenever working on the device.
Notify Agilent and Carrier. Notify Agilent Return Module to Agilent Figure 1-2.
Shipping Guidelines Follow the steps in Figure 1-3 to return the Module to an Agilent Technologies Sales and Support Office or Service Center.
Environment The recommended operating environment for the Agilent E1463A 32-Channel Form C Switch Module is: Environment Temperature Humidity Operating 0oC to +55oC <65% relative (0oC to +40oC) Storage and Shipment -40oC to +75oC <65% relative (0oC to +40oC) Switch Module Description The Agilent E1463A 32-Channel Form C Switch Module is an "instrument" in the slots of a VXIbus mainframe. Each module is assigned an error queue, input and output buffers, and a status register.
Switch Module Specifications Specifications are listed in Appendix A of the Agilent E1463A 32-Channel Form C Switch Module User’s Manual. These specifications are the performance standards or limits against which the modules may be tested. Switch Module Serial Numbers Devices covered by this manual are identified by a serial number prefix listed on the title page.
Notes 18 General Information Chapter 1
Chapter 2 Verification Tests Introduction The three levels of test procedures described in this chapter are used to verify that the Agilent E1463A 32-Channel Form C Switch Module: • is fully functional (Functional Verification) • meets selected testable specifications (Operation Verification) • meets all testable specifications (Performance Verification) Test Conditions and Procedures See Table 1-1 for test equipment requirements.
Switch Module Functional Verification The Functional Verification Test for the Agilent E1463A 32-Channel Form C Switch Module consists of sending the *TST? command and checking the response. This test can be used at any time to verify that the device is connected properly and is responding to basic commands. Procedure 1. Verify that the Switch Module is installed in the mainframe and that the mainframe has passed its power-on test. 2. Send the *TST? command to the device (see example following). 3.
The performance verification tests have two parts: a closed channel resistance test of all relay contacts (Test 2-1) and a DC isolation test (Test 2-2). These tests are sufficient to determine that the module is operating within specifications. These tests are suitable for incoming inspection, troubleshooting, and preventive maintenance. Wiring the Test Fixture A test fixture is required for the performance verification tests.
• Set DMM to measure 4-wire Ohms • Turn mainframe power ON 2. Measure Channel 0 C to NO Resistance • Send *RST to Module • Send CLOS (@nn00) to close channel 0, where nn = card # (typically 01) • Trigger the DMM with TRIG SGL and note reading • Send OPEN (@nn00) to open channel 0, where nn = card # (typically 01) • Enter the result in Table 2-1 for channel 0 C to NO 3.
• Set DMM to measure 4-wire Ohms • Connect DMM leads as shown in Figure 2-3 • Turn mainframe power ON 2. Measure Channel 0 C to NC Resistance • Send *RST to Module • Send CLOS (@nn00:nn31) to close all channels, where nn = card • • • • # (typically 01) Send OPEN (@nn00) to open channel 0, where nn = card # (typically 01) Trigger the DMM with TRIG SGL and note reading Enter the result in Table 2-1 for Channel 0 C to NC Send CLOS (@nn00) to close channel 0, where nn = card # (typically 01) 3.
Example: Closed Channel Resistance Test NOTE This example performs a Closed Channel Resistance Test to measure Channels 0 through 31 relay contact resistances. If the relay contact resistance for a channel is >2.0 Ω the program prints a message indicating which channel has failed the test. Use this list in Chapter 4 when troubleshooting a failing relay.
290 OUTPUT @Sw;"*RST" 300 OUTPUT @Sw;"*OPC?" 310 ENTER @Sw;Opc 320 IF Opc<>1 THEN GOTO 300 330 IF J=1 THEN 340 OUTPUT @Sw;"CLOS (@"&Cc$&"00:"&Cc$&"31)" 350 END IF 360 PRINT TABXY(1,1),"Channels 00-31 "&Path$(J)& " measurements" 370 PRINT TABXY(1,3),"1. Connect DMM Sense and Input HI leads to test fixture "&Path$(J) 380 PRINT TABXY(1,4),"2.
680 IF J<1 THEN 690 IF I <10 THEN 700 OUTPUT @Sw;"OPEN (@"&Cc$&Ph$&VAL$(I)&")" 710 ELSE 720 OUTPUT @Sw;"OPEN (@"&Cc$&VAL$(I)&")" 730 END IF 740 ELSE 750 IF I <10 THEN 760 OUTPUT @Sw;"CLOS (@"&Cc$&Ph$&VAL$(I)&")" 770 ELSE 780 OUTPUT @Sw;"CLOS (@"&Cc$&VAL$(I)&")" 790 END IF 800 END IF 810 OUTPUT @Sw;"*OPC?" 820 ENTER @Sw;Opc 830 IF Opc<>1 THEN GOTO 810 840 IF Result(J,I)<0 THEN Result(J,I)=0 850 IF Result(J,I)>2.0 THEN 860 is >2.
Typical Result Chapter 2 NO Contacts NC Contacts CH 0 .1453 Ohms .1453 Ohms CH 1 .1616 Ohms .1661 Ohms CH 2 .1914 Ohms .1948 Ohms CH 3 .3491 Ohms .2657 Ohms CH 4 .4644 Ohms .2628 Ohms CH 5 .1226 Ohms .1389 Ohms CH 6 .1499 Ohms .1678 Ohms CH 7 .1547 Ohms .1817 Ohms CH 8 .3347 Ohms .2257 Ohms CH 9 .4932 Ohms .3096 Ohms CH 10 .1572 Ohms .1849 Ohms CH 11 .1836 Ohms .2106 Ohms CH 12 .1543 Ohms .1317 Ohms CH 13 .2861 Ohms .2144 Ohms CH 14 .4500 Ohms .
Test 2-2: DC Isolation Test NOTE NC (&C) to NO Isolation This test verifies that sufficient DC isolation exists at various points on the Module. DC Isolation is checked from NO to NC, NO to Chassis, and NC to Chassis. This test uses the test fixture (see Figure 2-1). The DMM used should be capable of measuring at least 1 G Ω.. If the DMM indicates an overload, record the reading as >Rmax, where Rmax is the highest resistance that the DMM can measure.
NC (&C) to Chassis Isolation 1. Make hardware connections as shown in Figure 2-5 2. Set DMM to 2-wire ohms, 1 G Ω range 3. Send *RST to Module 4. Trigger the DMM with TRIG SGL 5. Record the DMM reading in Table 2-1 (NC to Chassis) Figure 2-5. NO and NC to Chassis Isolation NO (&C) to Chassis Isolation 1. Make hardware connections as shown in Figure 2-5 2. Set DMM to 2-wire ohms, 1 G Ω range 3. Send *RST to Module 4. Send CLOS (@100:131) to Module to close all channels 5. Trigger the DMM with TRIG SGL 6.
Example: DC Isolation Test This example performs DC Isolation Tests for C to chassis and NO to NC. 10! 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 RE-SAVE "DC_ISOL" ASSIGN @Dmm TO 722 ASSIGN @Sw TO 70915 DISP CHR$(129) Cc$="01" ! Card number DIM Result(2) PRINT "Equipment Connections " PRINT PRINT " 1. Turn Mainframe and Agilent 3458A DMM power OFF" PRINT " 2. Connect GPIB Cable between mainframe and DMM" PRINT " 3.
400 410 420 430 440 450 460 470 480 490 500 510 520 530 540 550 560 570 580 590 CLEAR SCREEN PRINT TABXY(1,1),"NO (&C) to Chassis DC Isolation" DISP " Press Continue to make measurement" PAUSE OUTPUT @Sw;"CLOS (@"&Cc$&"00:"&Cc$&"31)" !Close all channels OUTPUT @Sw;"*OPC?" ENTER @Sw;Opc IF Opc<>1 THEN GOTO 450 OUTPUT @Dmm;"TRIG SGL" ENTER @Dmm;Result(2) OUTPUT @Sw;"*RST" PRINT "DC Isolation tests complete" DISP "Press Continue to print measurement results" PAUSE CLEAR SCREEN PRINT TABXY(1,1),"DC Isolation T
Measurement Uncertainty Closed Channel Resistance Test For the performance verification tests in this manual, measurement uncertainties are calculated based on the Agilent 3458A Digital Multimeter. The measurement uncertainty shown in Table 2-1 is the accuracy of the Agilent 3458A using 90-day specifications. The calculations follow. Conditions: • 4-wire ohms function, 10 Ω range • 90-day specifications • Worst-case reading = 2.0 Ω M.U. = (15 ppm of Reading + 5 ppm of Range) = (15x10-6 * 2.
Table 2-1. Performance Test Record (Page 1 of 3) Model _______________________ Report No. __________________________ Date __________ General Information Test Facility: Name _____________________________________ Report No.
Table 2-1. Performance Test Record (Page 2 of 3) Model _______________________ Report No. __________________________ Date __________ Test No/Description Minimum* Value Measured Value Maximum Value Meas Uncert Test Acc Ratio (TAR) 2-1.
Table 2-1. Performance Test Record (Page 3 of 3) Model _______________________ Report No. __________________________ Date __________ Test No/Description Minimum* Value Measured Value Maximum Value Meas Uncert Test Acc Ratio (TAR) 2-1.
Notes 36 Verification Tests Chapter 2
Chapter 3 Replaceable Parts Introduction Ordering Information This chapter contains information for ordering replaceable parts for the Agilent E1463A 32-Channel Form C Switch Module. To order a part listed in this chapter, specify the Agilent Technologies part number and the quantity required. Send the order to your nearest Agilent Technologies Sales and Support Office. Replaceable Parts List Table 3-1.
Table 3-1. Agilent E1463A Replaceable Parts (Continued) Reference Agilent Part Qty Designator Number Part Description C401 0160-4822 CAPACITOR-FXD 1000pF +-5% 100 V C402 0160-4801 CAPACITOR-FXD 100pF +-5% 100 V C403 0160-4822 CAPACITOR-FXD 1000pF +-5% 100 V C404 0160-4801 CAPACITOR-FXD 100pF +-5% 100 V C405-C406 0160-4835 CAPACITOR-FXD 0.1uF +-10% 50 V C407-C408 0160-4844 C601-C604 0180-1746 4 CAPACITOR-FXD 15uF +-10% 20 V CR300-CR316 1902-0964 36 DIODE-ZENER 18V 5% PD=.4W TC=+.
Table 3-1. Agilent E1463A Replaceable Parts (Continued) Reference Agilent Part Qty Designator Number Part Description R405-R406 0757-0346 RESISTOR 10 +-1% .125W TF TC=0+-100 RP101-RP103 1810-0279 3 NETWORK-RES 10-SIP 4.7K OHM X 9 RP301-RP302 1810-0265 4 NETWORK-RES 16-DIP 680.0 OHM X 8 RP401-RP402 1810-0265 SP101 3101-2094 1 SWITCH-DIP ROCKER 8-1A 0.
Figure 3-1.
Table 3-2.
Table 3-3. Agilent E1463A Terminal Case Replaceable Parts (for modules with serial numbers prior to 3126A01817) Reference Designator A1 Agilent Part Number E1400-84401 Qty 1 Part Description TERMINAL MODULE CASE ASSY (See Figure 3-1) MP1 03852-01201 1 CLAMP MP2 03852-86701 1 PAD-CLAMP MP3 0515-2109 1 SCREW-MACHINE 10-24 .625-IN-LG PAN-HD-SLT MP4 1390-0846 2 FASTENER-CAPTIVE SCREW M2.5 X 0.
Table 3-4. Agilent E1463A Terminal Module PCA Replaceable Parts Reference Designator Agilent Part Number Qty Part Description A3 E1463-66510 1 TERMINAL MODULE PC ASSEMBLY (See Figure 3-3) P1-P2 1252-1577 2 CONNECTOR-POST TYPE 5.08-PIN-SPCG 48-CONTACT TB1-TB8 0360-2391 8 TERMINAL MODULE 12 P. POLYAMIDE NOTE: For option A3G replaceable parts, see Table 3-2. Figure 3-4.
Table 3-5. Agilent E1463A Reference Designators Reference Designators A .................. assembly P .................. electrical connector (plug) BRK ............. bracket PCB ............ printed circuit board C .................. capacitor PNL ............ panel CR................ diode Q ................. transistor CS................case R ................. resistor CVR ............. cover RP ............... resistor pack F................... fuse RT ............... thermistor probe J .
Chapter 4 Service Introduction This chapter contains service information for the Agilent E1463A Form C Switch Module, including troubleshooting techniques and repair and maintenance guidelines. WARNING Do not perform any of the service procedures shown unless you are a qualified, service-trained technician, and have read the WARNINGS and CAUTIONS in Chapter 1. Repair Strategy Agilent Technologies recommends component replacement for the Agilent E1463A.
Troubleshooting To troubleshoot a switch module problem you must first identify the problem and then isolate the cause of the problem to a replaceable part. See Chapter 3, "Replaceable Parts," and the component locators at the back of this manual for descriptions and locations of Agilent E1463A replaceable parts. Identifying the Problem Table 4-1 lists some common problems, along with symptoms and possible solutions.
Testing the Assembly You can use the tests and checks in Table 4-2 to isolate the problem. See Figures 3-1, 3-2, and 3-3 in Chapter 3 for locations of mechanical parts. See the component locator included with this manual for locations of electrical components. Table 4-2.
Matching Relays to Channels Use Table 4-3 to help match channel numbers to relay and drive circuit reference designators. Table 4-3.
Self-Test Error Codes Table 4-4 shows the self-test error codes for the Switch Module. The meaning of each code is given in the right-hand column. If a self-test failure occurs, cycle power and repeat the test. If the problem reoccurs, the device may need repair. Table 4-4.
Figure 4-1.
Repair/Maintenance Guidelines This section provides guidelines for repairing and maintaining the Agilent E1463A Switch Module, including: • ESD precautions • Soldering printed circuit boards • Post-repair safety checks ESD Precautions Electrostatic discharge (ESD) may damage static-sensitive devices in the switch modules. This damage can range from slight parameter degradation to catastrophic failure.
Post-Repair Safety Checks After making repairs to the module, inspect the device for any signs of abnormal internally generated heat, such as discolored printed circuit boards or components, damaged insulation, or evidence of arcing. Determine and correct the cause of the condition. Then perform the Functional Verification Test described in Chapter 2 to verify that the device is functional.
