HP 44428A User's Manual
Contents
1. 000000 OCT indi pes Channel cates all relays open Ok blank 0 state 000000 OCT 4 Close relays DWn Slot 000377 OCT indi 177777 B n cates all relays in ME Channel Channels O thru 7 mmt 0123456 closed onga nosey ack Openrelays a vue Slot 000000 OCT indi oor n cates all relays in c ot Channel Channels O thru 7 5 blank open 000000 Figure 3 4 Actuator Assembly Check Using The 3497A Front Panel Actuator Assembly 3 5 Model 44428A 0 LOADS ACTUATOR CARD WB IB hp 34974 hp SETUP 1 3487A LINE Switch OFF 2 No loads connected to the Actuator Terminal Card 3 Connect HP IB Interface Cable from hp 85A to 3497A 4 Load program in hp 85A see HP B5 Owners Manual and O Guide PROGRAM NOTE Program is for card in Siot 2 10 DISP DIGITAL OUTPUT ACTUATOR CARD 9 DISP O DISP 20 CLEAR 709 30 OUTPUT 709 882 0 40 ENTER 709 A 40 Opens ali relays DISP CARD SIGNATURE TEST 50 Tests card in siot 2 for 60 DISP CARD SIGNATURE 18 A OCTAL signature 70 DISP 80 DISP CLOSE RELAYS TEST 90 OUTPUT 709 DW2 177777DR2 100 ENTER 709 B 110 DISP RELAY STATUS B OCTAL DW 2 177777 closes re 120 DISP lays DR 2 is optional 130 DISP OPEN RELAYS TEST for 3497A display 140 OUTPUT 709 DW22. o EN 5 Sri o F Bun is 2 een pcr LU i Er unse Figure 8 1 Functional Block Diagram U8 and U7 These buffers provide a means of reading the status of the relays Buffer 08 is read when address lines BAO and are low and high respectively Similarly U7 is read when address line BAO and BAI are high and low respectively Also the SLOT SELECT and DIG 1 0 READ lines must be low Refer to paragraph 8 16 for more information on decoder ic 03 8 14 Identity Register and Decoder 8 15 Identity register U1 is a tri state buffer that when addressed address lines and BA1 SLOT SELECT and DIG I O READ are all low outputs an identity word to the mainframe data bus The identity word as output to the data bus D7 D6 D1 DO is 001X0001 X bit 4 may be either a 1 or a 0 All bits except bit 4 are hard wired If bit 4 is read as a low it means that the handshake function is disabled If the handshake func tion is enabled and bit 4 is read as a high the mainframe processor will halt execution of instrument command instructions and will continue to monitor the identity register until bit 4 returns low 8 16 Decoder ic U3 is a dual 2 line to 4 line decoder ic Section 1 is gated on when information is to be read Actuator Assembly 8 2 from the actuator
3. 100 fA 1 8 T9 C978 21983 i RESISTOR 1 718 13 D 1 Par s Ca 1 0 T0 1911 mars 3 ReSTSTOR 4 5 enu FO 10 290 4500 inm cna E RESISTOR 47 3 PBU FO TO a00 e500 anm Cos etary vers 1 TOR a7 8 FC TO A00 3500 ares 752 0 30 1 1 SISTOR 5 1K 1X 129W F T zagaa A tor m IN El 1 Big sx TC 400 400 cesis 1 i dup 7 i RESISTOR 300 9 mu ce Tte emat tesms 120 179 9 LS ORTE 27033 EON 1 16 ame LS quen c ler 31295 ana Alaus 1929 1201 2 4 10 DEDR LE 2 T 4 L DHAL 2 XNF 91295 SN74LS139N araua 3920 1823 i LS MONDSTEL RETRIG DUAL 01295 fraus este 1 Fr TIL 8 P TYPE ROS ENGE TRIG A aus an i 1 se uw TTL 01298 MAUS 180 1959 9 IG EFR TIL LS NON INU DROILIP7R 1620 3789 7 Bre TU LS NON IND 27014 1980 1730 amp 2 io FF mm LS D TYPE POE com 01298 enFALgeran Ai auto 182071940 16 TIL LG BOTYPE POS EDUE TRID COM 01295 Swzausaran m 18508 0047 18 TRAMSISTOR ARRAY 16 19 PLATE PIP 13606 iunneztesA 1956 0047 5 TRANSISTOR ARRAY 16 P
4. neogo wv 93497 64100 6 1 TERBINAL BOX KIT 1349769198 INCLUDES THE FOLLOWING Sales fa D sem zoonn snai siaa oms 02e xes 0900 ORDER BY DESCRIPTION EIN E 1 TERINA COVER Soat snas HPA 0902 0379 2 a cot RING 0949 9325 ms E 1 cce meso Susi Heo neai gnas 1 sar Lares amies spa 12043 Soai soag 3 1 Tenere Box 20498 Stal 3bab npa 7121 0367 i LABEL 7121 0367 mer Tisiiv s i tans zusam 7121 1706 Wei nis 7 1 rex Soaps 9121 0347 MP2 4 REQUIRED WP MP9 UNDERSIDE LABEL Figure 6 1 Mechanical Parts See introduction to this section for ordering information Actuator Assembly Indicates factory selected value 6 4 MANUAL CHANGES SECTION 7 1 INTRODUCTION 7 2 This section normally contains information for adapting this manual to assemblies with a serial number prior to the one indicated on the title page Since this manual does apply to all hp Model 44428A Ac tuator Digital Output assemblies no change informa tion is given Actuator Assembly 71 72 SERVICE SECTION 8 1 INTRODUCTION 8 2 This section contains theory of operation schematics component locators and troubleshooting procedures to aid in servicing the hp Model 44428A Actuator Digital Outp
5. isoletion Voltage 170V peak any terminal to chassis AC PERFORMANCE Contact Capacitance 15 pF Interchannel Capacitance lt 30 pF Frequency Response 10kHz Reference f lt 100kH2 f lt 1MHz 50 Ohm Termination 3dB 548 1M Ohm Termination 3dB 5dB Cross Talk 1M Ohm Termination lt 30 dB lt 30 d8 GENERAL INFORMATION Single Contact Closure Rate gt 27closures second using an hp Mode 9835A Desk top Computer Switch Life gt 10 operations with proper contact pro tection see Section II Operating Considerations The 44428A assembly must not be used in a position greater than 30 degrees from vertical inductive loads may require external arc suppression Actuator Assembly 1 2 INSTALLATION SECTION Only qualified service trained personnel are to install re configure or make repairs to this assembly Use clean handling techniques fantistatic techniques when inspecting removing replacing or re configuring the assembly Handle the card by its edges and do not subject the components to static discharge or excessive voltages To prevent serious personal injury extreme caution must be exercised when working with op plug in cards Potential shock hazards voltages up to 170 volts peak can exist be tween exposed guard and chassis on both the front when front panel is open and the rear of the 3497A 3498A when safety cover is removed Disconect 3497A 3498A power
6. cord disconnect all input output lines to from the mainframe and option cards and make certain that wires to the actuator terminal cards are free of voltage sources prior to handling or inserting or extracting the assembly 2 1 INTRODUCTION 2 2 This section contains information and instructions for configuring installing and shipping the hp Model 44428A Actuator Digital Output assembly Included are initial inspection procedures power requirements interconnection and relay contact protection instruc tions 2 3 INITIAL INSPECTION Use clean handling techniques antistatic fechniques when inspecting removing in stalling and configuring the assembly Han die the card by its edges and do not subject the components to static discharge or ex cessive voltages 2 4 Inspect the shipping container for damage If the shipping container or cushioning material is damaged it should be kept until the contents of the shipment have been checked for completeness and the assembly has been checked mechanically and electrically 2 5 The assembly was carefully inspected both mechanically and electrically before shipment It should be in proper working order upon receipt To confirm this the assembly should be carefully inspected for physical damage and the electrical performance should be tested using the performance tests outlined in Section v 2 8 PREPARATION F R USE To avoid the possibility of circuit damage always rem
7. for local 3497A control SLOT ON only when digital cards accessed SLOT DISPLAY 3 digit readout of slot accessed CHANNEL INDICATORS Displays contents of channel O thru 7 of actuator card ON relay is ciosed O NUMERIC DISPLAY 6 digit display Shows octal equivalent of digital channels status i e 000377 OCT channels O thru 7 on 1111111 binary DISPLAY FUNCTIONS Only and ENT used FOR HV Act OCT shows display is representation of digital channels ENT means data can be entered FRONT PANEL FEATURES KEYS LINE AC Power on off switch RESET Clears 3497A sets all relays to open LOCAL Puts 34974 in local mode of operation ALPHA NUMERIC KEYBOARD 0000 3 functions for each key Primary upper part Numeric 0 9 plus Shifted A C D etc on lower part SHIFT KEY Shifts keyboard 10 to shifted mode A C D When pressed light in center of alpha key is on CLEAR ENTRY Clears previous entry if execute key 13 not pressed EXECUTE KEY implements commands and clears keyboard Figure 3 2 34974 Front Panel Features 3 15 STEP 1 VERIFY CARD SIGNATURE 3 16 The actuator card has been assigned a signature of 000041 octal The purpose of the signature is to verify that an actuator assembly does exist in a specified 3497A slot At the completion of this portion of the check the 3497A front panel display should indicate 00041 OC
8. which if not correctly per formed or adhered to could result in injury or death to personnel The CAUTION sign denotes a hazard It calls attention to an operating procedure practice condition or the like which if not correctly performed or adhered to could result in damage to or destruction of part or all of the product The NOTE sign denotes important information It calls attention to procedure practice condition or the like which is essential to highlight OPERATING AND SERVICE MANUAL MODEL 44428A ACTUATOR DIGITAL OUTPUT ASSEMBLY OPTION 110 Only personnel with knowledge of electronic cir cuitry should install re configure or make repairs to this instrument The Actuator Card and associated terminal card were not intended for outdoor use Do not expose them to rain or excessive moisture Manual Part Number 44428 90001 Microfiche Part Number 44428 90051 Copyright Hewlett Packard Company 1981 P O Box 301 Loveland Colorado 80537 U S A Printed January 1982 CERTIFICATION Hewlett Packard Company certifies that this product met its published specifications at the time of shipment from the factory Hewlett Packard further certifies that its calibration measurements are traceable to the United States Na tional Bureau of Standards to the extent allowed by the Bureau s calibration facility and to the calibration facilities of other International Standards Org
9. Dangerous voltages capable ef causing death are present in this instrument Use ex treme caution when handling testing and adjusting m ctt A SAFETY SYMBOLS General Definitions of Safety Symbols Used On Equipment or In Manuals 1 Instruction manual symbol the product will be marked with this symbol when it is necessary for the user to refer to the instruction manual in order to protect against damage to the instrument Indicates dangerous voltage terminals fed from the interior by voltage exceeding 1000 volts must be so marked Protective conductor terminal For protection against electrical shock in case of a fault Used with field wiring terminals to in dicate the terminal which must be connected to ground before operating equipment Low noise or noiseless clean ground earth terminal Used for a signal common as well as providing protection against electrical shock in case of a fault A terminal marked with this symbol must be connected to ground in the manner described in the installation operating manual and before operating the equipment Frame or chassis terminal A connection to the frame chassis of the equipment which normally includes ali exposed metal struc tures Alternating current power line Direct current power line Alternating or direct current power line The WARNING sign denotes a hazard It calls attention to a pro cedure practice condition or the like
10. be opened or closed As shown in Table 3 1 the primary commands for controlling the actuator assembly are the DCn ni n2 nl6 Digital Close DOn nl n2 n16 Digital Open and DWn ni Digital Write 3 5 The Digital Open and Digital Close commands are used to open or close specified channels while leaving other channels not specified in their previous state The DO and DC commands use the form DOn n1 n2 016 and DCn n1 n2 n16 respectively where n is the slot number where the assembly is located 0 4 in the 3497 Individual channels to be opened or closed are represented by n1 n2 n16 nl is one channel to be opened or ciosed n2 is a second channel etc For exam pie to close channels 5 7 10 and 15 on the assembly located in slot 1 use the command DC1 5 7 10 15 Note that all other channels remain in their previous state either open or closed 3 6 The DO and DC commands affect only the chan nels specified The DW command on the other hand provides a simple method of controlling all relays with a single command By way of illustration assume that an actuator assembly in Slot 1 has some combination of open and closed relays You need to have closed only channels 5 7 10 and 15 Using the DO and DC com mands you might first open all channels and then close only the four needed for example 01 0 1 2 3 4 6 8 9 11 12 13 14 DC1 5 7 10 15 This is a two step process and very time consuming The DW command p
11. ex that repeated reads of the actuator card are made and updated on the display and on the HP IB Interface Bus DVn DIGITAL VIEWED SLOT DIGITAL VIEWED command dedicates the 3497A front panel display to a slot while the 3497A is simultaneously in an output mode for another slot For example DV2 dedicates the front panel display to slot 2 at the same time that the 3497A is providing output data from another slot Exit from this mode by us ing the command DV without the n slot designation DWn n1 DIGITAL WRITE SLOT VALUE The DIGITAL WRITE command outputs 3 digit octa value to ail 8 channels where n is the slot number n1 is the octal value cor responding to the desired digital state of the relays where digits 1 Closed O open Thus to close relays 1 177777 to open all relays n1 0 To close relays in channels 5 and 6 only and open all other chan nels digital 01100000 n1 140 DW af fects the entire assembly while DC and DO affect only the channels specified si SYSTEM INITIALIZE This command is used to reset the actuator card channeis to a power on state which opens all relays The St command also resets the 1 5 second time delay circuit to zero SRn O SYSTEM READ SLOT 0 This command reads the signature of the option card slotn The actuator is assigned signature 000041 OCTAL the slot number a comma and the channel s must follow the comm
12. on the actuator assembly The information gained by running either of these verifica tion checks wili often be a great aid in troubleshooting the assembly 4 7 Operational Verification Checks Using the Verificatian Connector 4 8 The following paragraphs describe operational verification procedures for the 44428A assembly using the hp Model 03497 67908 Verification Connector The discussion is written for a hp Model 85 computer and its software There are however several other hp computers as indicated in Table 4 2 capable of perfor ming the verification checks with the 03497 67908 Verification Connector Whichever computer you are Table 4 1 Recommended Test Equipment with hp 85 software cable Extender assembly Logic Probe Instrument ritical Specifications Recommended Model Use 3497A Data Acquisition NO substitutions hp 3497A Control Unit with Front panel Controller HP IB compatible hp 85F P Voltmeter HP IB compatible hp 3456A PT Verification connector Er hp 03497 67909 F hp 10631A P hp 03497 67913 PT hp 845A T hp 85F includes hp 85 A 82936A ROM Drawer 00085 15003 I O ROM and 829374 HP IB interface hp 85F option 001 exchanges the 829394 Serial Interface for the HP IB interface Controllers other than the hp 85 may be used Refer to Table 4 2 for a list of other hp controllers and verification software Actuator
13. section of the manual provides operational verification checks for the hp Model 44428A tuator Digital Output assembly These checks are designed to verify the operational readiness of the assembly and does not perform specification checks In addition instructions are provided for testing relay con tact resistance and thermal offset 4 3 Recommended Test Equipment 4 4 Test Equipment required to check the 44428A Ac tuator assembly is listed in Table 4 1 If any of the recommended test equipment except for the 3497A and the 03497 67908 Verification Connector is not available substitutions may be made Table 4 1 lists the critical specifications for the equipment 4 5 OPERATIONAL VERIFICATION 4 6 Two forms of operational verification checks are discussed The first assumes that you have the 03497 67908 Verification Connector and associated computer software Refer to Table 4 2 The second verification check uses a resistor network that must be assembled on the actuator terminal card Either test may be used although the first is the preferred method Table 4 2 Verification Connector and Software Computer hp Part Bumbar software only hp Part Rumba sattware plas ver ificetion connector 85A 03054 10011 03497 67909 9825A 03054 10008 03497 67910 38354 03054 10002 03497 67911 9845A 03054 10005 03497 67912 verification connector only 03497 67913 as it checks handshaking
14. 0 150 ENTER 70 160 END 160 DW2 0 opens all relays PRINTOUT DIGITAL OUTPUT ACTUATOR CARD CARD SIGNATURE TEST 41 OCT identifies card as CARD SIGNATURE IS 41 OCT actuator option 115 or as act output assy option 110 CLOSE RELAYS TEST 177777 OCT shows all relays RELAY STATUS 177777 OCT closed card fails for other values OPEN RELAYS TEST OCT shows all relays open RELAY STATUS O OCT card fails for other values Figure 3 8 Actuator Assembly Check Using an hp 85F Actuator Assembly 3 6 3 30 The following paragraphs describe typical ap plications for the hp Model 44428A Actuator Digital Output assembly The examples given are not the only uses for the Actuator assembly they only serve to show the versatility of the assembly Numerous switching re quirements can be satisfied keeping in mind the max imum power limitations and other characteristics given in Table 1 1 3 31 Highly inductive loads such as motors and lamps or capacitive loads may require relay contact arc protection Refer to the nomograph in Section II for details on R C network contact protection Model 44428A 115VAC STEP DOWN Tee TRANSFORMER N BPTIONALLY ALARM is REDUIRED DEVICE A CONTACT 4 zy PROTECTION Common ACTUATOR 3 1 Figure 3 8 Relay Actuated Alarm Circuit NORM CLOSED EXTERNAL CIRCUIT EXTERNAL CIR
15. 1539 6 0 sty uno se Pio Erg copo E en T e ws s sr ar E PE B dd
16. 209 6 16 500 ievoe Con 10095 zaseo 490 1229 alas 0 1229 fe 1 Sbevac Uvece COTL taava eese 0490 122 49021207 16 36 Soavac 10900 60100 2 0490 1229 sam imm AY REED 10 SOOUAG ToMDE COLL enano 9490 1229 0470 1229 a RELAY REED 16 SODVAC iovbc tot 2 2490 1229 1229 5 BA BOVAG agave 28450 1229 0490 1929 amp EL irava 29480 8494 1229 04907122 RELAY REED 16 2A S80UA6 zmaga 0479 1229 are 6 RELAY REED 15 PA 500080 090 1229 0470 1229 6 RELAY REED 10 BA SUVAG dova anand 0490 1229 maig 0490 1225 6 AELAY REED 10 2A BOMAG iva euam oar 220 mans ana o RELAY REED 10 BA SOOVAC 10008 0490 1229 0490 1229 RELAY REE iC IOVDC DOIL 20094 6498 1209 DS o PELAY PED 10 2 INVDE EGIL 29488 caeco m 1258 0141 sumer nen ness cesonia 1300 0145 1298 0121 8 a 1 TRANSISTOR PNP ET 250MHZ 28488 1095 0036 m 7 1 SISTOR Lex 2294 FC TE ADO IB0D oner Ai ARR 9 SISTOR 237 1 129W F
17. 6 Relay Actuated Alarm Circuit 3 7 Voltage Switching 3 8 Bit Wide Digital Output Word 3 9 Matrix Switching Table Pur 1 1 1 2 3 1 Actuator Assembly Commands 3 2 4 1 Recommended Test Equipment 4 2 Verification Connector and Software 24 41 LIST OF ILLUSTRATIONS Section Page 4 5 Operational 4 1 4 7 Operational Verification Checks Using the Verification Connector 4 9 Procedure 4 10 Operational Verification Checks Using a Resistor Network E 4 12 Terminal Card Wiring 4 13 Procedure 4 15 Testing Relay Contact esistan 4 17 Testing Thermal Offset 4 19 Procedure V ADJUSTMENTS 5 1 Introduction Vi REPLACEABLE PARTS 6 1 introduction 6 4 Ordering Information 6 6 Non Listed Parts 6 8 Parts Changes MANUAL CHANGES 7 1 Introduction VII SERVICE 8 8 1 Introduction 8 8 3 Safety Considerations sant 8 5 Block Diagram Theory of Operation 8 8 8 8 8 10 Detailed Theory of Operation 8 11 Relay 8 14 identity Register and Decoder 8 17 Flag and Gate Handshake 8 20 Troubleshooting Information 8 22 Relay Decoding and Driving Circuits 8 25 Control Logic 8 27 Handshake Logic oc Figure 4 1 Verification Connector 4 2 CRDVER Key Operations 4 3 Wiring t
18. AR 723 OUTPUT 723 2 RTIS 68 CLEAR 789 OUTPUT 789 DR 15 38 78 BEGIN NORMALLY CLOSED TEST DISP DISP XEXE N C CONT CHANNELS 3 13 CHECK gt LEADS 10 34564 a SGTS a a 18 iaa IF THEN 5070 128 118 DISP e D TEST FIXTURE T IN FLRCEI amp GOTO 2 9 2 THEN GOSUB 358 1 THEN 238 S 14 DISP amp DISP NORMALLY CLOSED 5 E Ba CHECKS PASSED Zen 158 DISP 6 DISP Xix Xr N O CONT 4020 33 ACTS CHECK xxx 168 DISP E DISP RELAY RESISTRNC RELAY HUMBER TO 15 Figure 4 3 Wiring the Terminal Black 32788 THEN TPUT 782 DW GOSUE 318 R 9 THEN 268 29 DISP 9 DISP RELAY DERD I DTOsC d Connect the lead wires to enable a 4 wire ohms e Referring to Figure 4 3 wire the Gate and Flag Handshake terminals and install jumpers J2 and 13 E GOTO 268 240 IF INTERIM I HL THEN 268 2 258 G sue 358 f Reassemble the terminal card and connect to the 26a DIE R 19 1 1 2 WAIT 560 H XT OI actuator assembly 278 IF 2 1 THEN 298 DISP DISP NORMALLY HELKS PASSED 4 13 Procedure 298 DISP DISP END OF TE kir 4 14 Load the program given in Figure 4 4 into the END SUERO hp Model 85F computer and press the RUN key denm Follow all instructions given on the display EN
19. Assembly 4 1 Model 44428A using simply follow the instructions given on the com puter display 4 9 Procedure a Connect the HP IB Interface card between the 3497A and one of the 85A s rear panel 1 0 slots Also if the 34564 is to be the DVM used during the test it should be connected to the same HP IB line b Turn OFF the 3497A and remove the terminal card from the actuator assembly to be tested c Insert the Verification Connector Card 03497 67908 in place of the removed terminal card ac cording to the instructions on the card and the drawing in Figure 4 1 Use the digital end of the Verification Connector Follow the drawing closely to assure that the Timer Channel Closed BBM Synch and voltmeter cable are correctly connected d Turn ON the 85F 3497A and 3456A if used e Insert the verification Tape Cartridge into the 85F s tape transport and type the following LOAD CRDVER then press END LINE after the program is loaded press RUN f Read the instructions given on the CRT display and press CONT g The Menu of the program is given along with description of the Special Function Keys used by the program Figure 4 2 defines the operation of these keys To test the 44428A Actuator assembly press K2 h 1f any failures are detected the computer will in dicate the nature of the failure and which relay failed 0 3497A OR 3498A REAR PANEL HIGH LOW AND GUARD TERMINALS isee note b
20. Bradford 16701 27014 National Semiconductor Corp Santa Clara CA 95051 28480 Hewiett Packard Co Corporate Palo Alto 94304 56289 Sprague Electric Co North Adams MA 01247 Actuator Assembly 6 2 Table 6 3 Replaceable Parts R HP inhi Mfr Part c aty Description Mfr Part Number Designation Number Code ata d3a97 6os1 6 x ABSEMBLY RELAY HOARD amago ddas7 e etia Mac TN ja 5 sese isunavexca rene ma 0180 0309 4 CAPACTTOR PXD 201 14000 TA user 130D479X001042 0 09 TAPACITOR FXD 4 7U6 20 10900 isana7exon tone 80 0309 ERPACLTOR FRD 24120642202 gece ismavexenion Arcs GAPASITUR EXD A TURT 2UX 10900 56289 vsnnaroxaos one 2 GCAPADITDR FXD S0VOC CER eno 0160 2007 Er GAPACITOR XD 3180 02 MODE CER sees mcr 1902 0244 9 1 prebz zus Sov sx 1902 1244 Er ES 1 any 90 55 191 0050 1251 6873 16 1 amp eis m POST asao aram 1851 4647 3 1 CONNECTOR gran M POST TYPE pease 1201 4647 0490 1029 a 1 reray reen soovac nupo gon 26408 2490 3226 eren 1229 6 1G GUOVAC 160VA 0492 1
21. CUIT 2 NORM OPEN ACTUATOR 3 3 ROSEN 15 outeur COMMON DEENERGIZED 5v KIS ENERGIZED GND 3 4 Figure 3 8 Bit Wide Digital Output Word Figure 3 7 Voltage Switching 3 32 The 16 Mercury wetted relay switches Single Pole Double Throw contained on the assembly can be individually controlled to close an external circuit such as actuating an alar n Figure 3 6 Voltage can also be switched from one external device to another as shown in Figure 3 7 3 33 A 16 bit wide digital word can be utilized by con necting the relay contacts on the terminal card as shown in Figure 3 8 The 16 pin DIP sockets and plugs 31 through J6 on the Terminal Card provide a means of connecting the 4 7K ohm pull up resistors to the Nor maily Open and Normally Closed relay contacts Do not use pull up resistors less than 2K ohms NORMALLY OPEN TERMINALS N COMMON TERMINALS NN p Figure 3 9 Matrix Switching 3 34 Figure 3 9 illustrates one type of matrix switching arrangement the Actuator assembly can be used for All COMMON relay contacts are wired together in this ap plication Two relays would need to be closed simultaneously typically one relay across the top and one along the left side Actuator Assembly 3 7 3 8 SECTION IV VERIFICATION CHECKS 4 1 INTRODUCTION 4 2 This
22. Commands Command Function and Description Command Function and Description DCn n1 n2 DIGITAL CLOSE SLOT CHANNELS n3 n16 Digital Close is used to close relay contacts in channels n1 through 116 From one to sixteen channels of an actuator in slot n may be closed with a single command n the slot number ni n2 etc numberis of channel s to be closed Channels not listed in the command remain in their previous state Example DC2 4 5 closes relays in channels 4 and 5 for an actuator in siot 2 while relays in all other channels remain n their previous open or closed state DOn n1 n2 DIGITAL OPEN SLOT ICHANNELS n 16 Digital Open is used to open relay contacts in channels n1 through n16 of an actuator in slot n From one to sixteen channels may be opened by a single command n the slot number n1 n2 etc numberis of channeis to be opened Channels not listed in the com remain in their previous state Example 03 6 7 opens relays in channels 6 and 7 for an actuator in slot 3 Din DIGITAL LOAD SLOT The digital load command returns the current state of the B relays open or closed of an ac tuator in slot n for presentation on either the front panei of the 34974 and or to the HP IB bus The presentation is a 6 digit octal representation of the state For example with all relays closed the presentation is 177777 OCTAL DRn DIGITAL READ SLOT Same as the DIGITAL LOAD command
23. IN PLST DIP 13608 UCN P903A 1850 0087 TRANSISTOR ARRAY L amp PIM PLSTG DIF 13000 uLv 20030 Arana 1994 0649 7 1 OPTO ISDLATOR LED I GATE lt 1996 2439 rooa oaen 8 i GPTO ISOLATOR LED PRSTR YP 80MA NAX tana ane a 1 59 957 01 ais 23497 86818 1 x agseHELy TERMINAL CARD 3497 8515 aseri 1981 0925 1 vinde mn PAP 1209 zooma 00 7 amaan 1901 0029 mart 2609 0064 x registrar so ag su Themes 38490 1699 0064 MIOCELLANCOUS PARIS 0360 1993 6 1 BARRIER BLR 19 2 8340 1992 0360 1999 7 1 mameita mi 3 2 amo 0360 1994 msza 1200 0475 8 1 DIP DIP SLDR pease 1200 0474 1251 3835 6 1 CONNECTOR 16 018 M RECTANGULAR 2291 3539 1351 5904 8 1 GOWNECTOR Pe EDGE d CONT R M 2 ROWS 1251 5044 See introduction to this section for ordering information Indicates factory selected value Actuator Assembly 6 3 Table 6 3 Replaceable Parts Cont d Reference HP Part cl o Di A Mfr i escription Mfr Part Number Designation Number D ty Code MECHANICAL PARTS LIST sis 0 5 ANNO
24. KARD SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE EXCLUSIVE REMEDIES THE REMEDIES PROVIDED HEREIN ARE BUYER S SOLE AND EXCLUSIVE REMEDIES HEWLETT PACKARD SHALL NOT BE LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSE QUENTIAL DAMAGES WHETHER BASED ON CONTRACT TORT OR ANY OTHER LEGAL THEORY ASSISTANCE Product maintenance agreements and other customer assistance agreements are available Jor Hewlett Packard products For any assistance contact your nearest Hewlett Packard Sales and Service Office Addresses are provided at the back of this manual 10 1 79 GENERAL INFORMATION SECTION 1 1 1 INTRODUCTION 1 2 This Operating and Service Manual contains infor mation necessary to install configure operate test and service the hp Model 44428A Actuator Digital Output Assembly The assembly is an option Option 110 for the Hewlett Packard Model 34974 Data Acquisition Control Unit and 3498 Extender 1 3 Overall system concepts such as 34974 installa tion and operation are covered in the Operating and Service Manual for the 3497A and will not be repeated in this manual 1 4 DESCRIPTION 1 5 The hp Model 44428 Actuator Digital Output assembly is comprised of two parts the relay circuit board and the terminal card See Figure 1 1 The assembly contains 16 mercury wetted form C single poll double throw relays Each relay can be individual ly
25. LAY CIRCUIT BOARD TERMINAL CARD WITH COVER REMOVED Figure 1 1 hp Model 44428A Actuator Digital Output Assembly Actuator Assembly 1 1 Model 44428A 1 11 ACCESSORIES 1 12 An hp Model 03497 66515 actuator terminal card is supplied with each assembly 1 13 SAFETY CONSIDERATIONS 1 14 This manual contains cautions and warnings alerting the user to hazardous operating and maintenance conditions This information is flagged by a CAUTION or WARNING heading and or the symbol The symbol flags important operating instructions located in Section Ill To ensure the safety of the operating and maintenance personnel and retain the operating condition of the instrument these instruc tions must be adhered to 1 15 EQUIPMENT REQUIRED BUT NOT SUPPLIED 1 16 The 44428A Actuator Digital Output assembly was designed to operate with the hp Model 3497A Data Acquisition Control Unit or with the hp Model 3498A Extender to the 3497A 1 17 EQUIPMENT AVAILABLE 1 18 An extender board hp part number 03497 67913 is available as an aid in troubleshooting the actuator card TABLE 1 1 Specifications INPUT CHARACTERISTICS The actuator is for use only in circuits fused at 1 ampere or less and less than 100VA Contact Ratings Voltage 100 volts peak Current 1 ampere channel Power 100 volt amperes channel Thermal Offset 20 uv Contact Resistance 400 milliohms isolation gt 10 ohm common to open
26. No protection is required for voltages below 12 volts or currents below 65ma Contact loads that can cause arcing may result in contact failure unless contact protection is provided It should be wired close to The resistor may be eliminated for voltages below 50 volts with the relay terminals currents below 0 5A The capacitor should not exceed the chart value The R C network shown is suitable for most loads Component values may be obtained from the nomograph Capacitance may be Highly capacitize loads do not require protection increased up to 10 times to minimize inductive load transients Use peak values for ac circuits CONTACT PROTECTION NOMOGRAPH zu ww 5 H p 200 e 3 5 or 9 P CONTACT PROTECTION 27 9 uw NETWORK E z 10 8 Es ag BSE m E os asi 2 a r E SOURCE VOLTAGE IMMEDIATE Y pages PRIOR TO CONT CLOSURE m SE mereneaween son FE xe Lowitimawvu ii es E I PS E 00 MED 8 8 5 8 os 080807 091 4 5670910 35 20 30 4050 CURRENT AMPERES IMMEDIATELY PRIOR TO CONTACT OPENING HOW TO USE THE ROMOGRAPH To determine C the load current value is found on the CURRENT axis Reading directly up to the sloping capacitance line the C value is determined from the right hand CAPACITANCE scale To determ
27. PERATION 8 6 Refer to Figure 8 1 for the following block diagram theory of operation Eight bit input data relay command data is received by the Actuator assembly over the bi directional data bus DO D7 This data is ac cepted by two octal D type flip flops IC s U9 and U10 which drive via the relay drivers U11 U12 and U13 relays to K15 Output of the flip flops is also fed to two tri state octal buffers U7 U8 that are used to feed back relay status information when interrogated by the 3497A 8 7 The Status Read Command SRn 0 allows the 3497A to interrogate the various option assemblies to determine which type of assembly is in the slot Internal ly the 3497A reads the output code from the identity register to verify the presence of the actuator assembly A tri state buffer Ul is hard wired for the actuator card code is used for this purpose Refer to Section Operation paragraph 3 15 for more information on the SIGNATURE of the Actuator assembly 8 8 The optically isolated handshake lines are used to synchronize the transfer of either individual relay out puts or a 16 bit wide digital word KO K15 The hand shake mode of operation can be selected or disabled with a jumper plug P2 on the relay circuit board See Section 11 INSTALLATION for information on con figuring the handshake lines 8 9 The 1 Read I O Write Slot Select and Address BAO BA1 lines from the 3497A are used to syn
28. T Any other number indicates a different op tion card assembly no option card or a faulty actuator assembly or mainframe If you should get a different number try placing the actuator assembly in a different 3497A slot and rerun the test NOTE The hp Model 444314 8 Channel High Voltage Actuator Option 115 also has a signature of 00041 octal 3 17 Figure 3 4 step 1 demonstrates the keystroke se quence for the signature test Pressing the blue SHIFT key changes the front panel key functions to the shifted alpha A C D etc mode so that the first two keystrokes are S and R for System Read The slot number is then entered 1 to 4 a comma and then a Actuator Assembly 3 3 Model 44428 A Step Step Step Step Own 177777 Open Relays see H NOTES Action h Slot Command Figure 3 3 Actuator Assembly Check Flowchart 0 After the EXECUTE key is pressed the slot number channels 0 and 5 and 000041 OCT will be displayed NOTE Channel indicators 0 and 5 ON do not in dicate that relays channels 0 and 5 are closed For the SRn 0 command they cor respond to 000041 Octal 3 18 STEP 2 RESET 3 19 Press the 3497A RESET key to make certain that all relays are open See Figure 3 4 step 2 3 20 STEP 3 INTERROGATE RELAY STATUS 3 21 Use the DRn command to check the actuator readback function The readback function a
29. TA VALID AT THIS TIME FIRST HALF OF HANDSHAKE i DATA TRANSFER COMPLETE SECOND HALF i IHANDSHAKE INTIATED IAT THIS TIME en Pod od Hoa i tot not HIGH GATE tod Hog i HET f f F i ii Hog i Hog Karel Hog i bod m N HIGH FLAG HT 003 PEE cse ng 73 12 16 bit wide deta word transferred to actuator card relays T1 T2 Settling time for relays and drive circuits 3ms 2 Data Valid ready for transfer to external device T2 T3 Data transfer executed during this time period T3 Data transfer complete Actuator card and 3497A wait until positive going flag pulse re ceived DATA VALID AT THIS TIME FIRST HALF DF HANDSHAKE DATA TRANSFER COMPLETE SECOND HALF OF i 1 THANDSHAKE INTIATED THIS TIMES ww CO CO TA d ii ko tz boi pO Pon og io Pod od Pd 95 Vk it Pod Pod Pod E boo d Po bg bg LOW SATE P bg LET port vor Pod Pong Pon LOW FLAG 1 1 1 weis Pod bod i Pod og m Pod Hog Pod 5 to o 1 NMUUATUR RSS CIR 4 16 bit wide data word transfered to actuator card relays T1 T2 Settling time for relays and drive circuits 12 Data valid ready for transfer to externa device first half of handshake 12 T3 Data transfer executed duing this time period T3 Data transfer compl
30. TER 723 G RETURN CHECK CHANNEL SUBROUTINE 4 15 Testing Relay Contact Resistance 4 16 The following procedure may be used to perfor mance check the contact resistance specification for the actuator assembly Contact resistance is specified as the resistance between terminal board contacts i e the sum of the resistances from the terminal contact to the relay the relay contacts and back to the terminal card This test should be performed for each individual relay This ensures that only the contact resistance is measured and thermal offsets are canceled 785 Ov HAIT 260 GOSUB 328 GOTO 438 GARD sINT XZ18BB T 446 IF IHTCREzZIEORIHTOX 18 THEN a Remove all cables etc from the actuator terminal 456 card 458 NEST J 469 RETURN NM 478 DISP amp DISP FAILED NORMALLY b Connect the wires as shown in Figure 4 5 to one TEST J 2 1 GOTO relay Set the 3456A for a 4 wire offset compensated 488 DISP ILLEGRL MULTICLOSURE ohms measurement zs B amp GOTH 458 c Verify that the measured resistance is below 400 milliohms 4 ohms Figure 4 4 Actuator Digital Output Test Program Actuator Assembly 4 4 EET v 8 8 84 CHANNELS 3 13 NOT SHOWN 808 82 6 8 DPEN COMMON ES Figure 4 5 Relay Contact Resistance Test d Check all of the Normally c
31. Yal hp Part Number from ten ohms to 160 ohms in steps of ten ohms 16 re bid ee En quired and resistors with values from 1K ohm to 16K 100 0757 0346 1K 0757 0280 ohm in steps of IK ohm 16 required are used Refer to 200 0757 0384 2 9 0757 0283 Table 4 3 If possible the resistors should have a 1 08 07010392 97870271 tolerance and actual values of resistance as close as 0757 0277 BKO 0698 3279 possible to the nominal step values i e 10 20 30 600 0698 4391 0698 3497 160 ohms 700 0698 4391 7KQ 0698 4470 809 0698 4396 0698 4473 i ri 909 0757 0400 9KQ 0757 0442 4 12 Terminal Card Wiring 1000 0757 0401 10KQ 0757 0442 1100 0757 0402 0757 0443 a Turn OFF the 3497A and remove the actuator ter 1200 0757 0403 0757 0444 minal card 1300 0757 0404 13 0 0757 0445 1400 0698 4412 0698 4479 1500 0757 0286 15 0 0757 0446 b Remove the terminal card cover 1600 0757 0405 1680 0757 0447 Referring to Figure 4 3 wire the terminal card as shown Use short pieces of insulated wire and the resistors Table 4 3 Resistor Values Actuator Assembly 4 3 Model 44428A CLEAR DISP ENTER SLOT HUM R INPUT 5 JMPR 1 MPR 2 a SER JMPR 3 28 2 8 GIKPR 4 CLEAR e DISP uxxxX ACTUATOR oe TEST Yyxtr 5 8 48 DISP amp DISP SLOT NUMBER E 7 7 CLE
32. able notes and provides the following a Total quantity used in the instrument Qty col The total quantity of a part is given the first time the part number appears b Description of the part See list of abbreviations in Table 6 1 c Typical manufacturer of the part is a five digit code See Table 6 2 for a list of manufacturers d Manufacturer s part number 6 3 Miscellaneous parts are listed in Table 6 3 follow ing their respective assemblies General miscellaneous parts are listed at the conclusion of Table 6 3 6 4 ORDERING INFORMATION 6 5 To obtain replacement parts address order or in quiry to your local Hewlett Packard Sales and Service Office Identify parts by their Hewlett Packard part number instrument and serial number Include complete 6 6 NON LISTED PARTS 6 7 To obtain a part that is not listed include a instrument model number b instrument serial number c description of the part d function and location of the part 5 8 PARTS CHANGES 6 9 Components which have been changed are so marked by one of three symbols i e A A with a letter subscript e g Aa or a A with a number subscript e g Aw A A with no subscript indicates the component listed is the preferred replacement for an earlier compo nent A A with a letter subscript indicates a change which is explained in a note at the bottom of the page A A with a number subscript indicates the related change is discus
33. and For example C3 C unse CoC OR OTI 2 3 11 Later in this chapter illustrations will be provided to demonstrate how the digital commands may be used with the actuator assembly However with this introduction to using the actuator assembly and digital commands it is time to perform a simple verification check on the actuator assembly Actuator Assembly 32 3 12 ACTUATOR ASSEMBLY CHECK USING THE 3497A FRONT PANEL 3 13 This actuator card check has two main objectives to check the signature of the actuator card and check the readback function In the process of performing this test you will learn about reading the 3497A display in terrogating relay status and using other digital com mands 3 14 To begin the check make certain that the hand shake jumper P1 is in the off position Firmly seat the actuator assembly in one of the slots in the 3497 Press the 3497A LINE switch ON and follow the test sequence shown in Figure 3 3 and 3 4 and described in paragraphs 3 15 through 3 25 Model 44428 A O TEE E oe 88888 T DISPLAYS REMOTE LED ON for control by EXT controler OFF
34. anization members WARRANTY This Hewlett Packard product is warranted against defects in material and workmanship for a period of one year from date of shipment except that in the case of certain components listed in Section J of this manual the warranty shall be for the specified period During the warranty period Hewlett Packard Company will at its option either repair or replace products which prove to be defective For warranty service or repair this product must be returned to a service facility designated by hp Buyer shail prepay shipping charges to hp and hp shall pay shipping charges to return the product to Buyer However Buyer shall pay all shipping charges duties and taxes for products returned to hp from another country Hewlett Packard warrants that its software and firmware designated by hp for use with an instrument will execute its programming instructions when properly installed on that instrument Hewlett Packard does not warrant that the operation of the instrument or software or firmware will be uninterrupted or error free LIMITATION OF WARRANTY The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer Buyer supplied software or interfacing unauthorized modification or misuse operation outside of the environmental specifications for the product improper site preparation or maintenance NO OTHER WARRANTY IS EXPRESSED OR IMPLIED HEWLETT PAC
35. assembly to the mainframe This is accomplished when the DIGital READ line and SLOT SELECT lines are both low input to U2A Sec tion 2 is gated when information is to be written to the actuator assembly from the mainframe This occurs when the SLOT SELECT line and the DIGital VO WRITE line are both low input to U2B Both halves of U3 have a truth table as shown in Figure 8 2 8 17 Flag and Gate Handshake 8 18 The Gate signal is generated by monostable multivibrator U4A The pulse and its complement U6B is available at jumper J1A Transistor Qi drives INPUTS QUTPUTS ENABLE SELECT G BAT BAO hl M Y2 X X H H H H 9 L L H H H L L H k H H E H L H L H H H H H H L Figure 8 2 U3 Truth Table optical isolator 015 The outputs of U15 are available as GATE and GATE on the Terminal Card If necessary the isolation may be defeated by adding jumpers JMPR1 use a 10Kohm resistor and JMPR2 on the Terminal Card Figure 8 3 illustrates the hand shake timing diagram for Gate pulse 8 19 Flag inputs to the actuator assembly are used to signify that the external circuits or devices have received the data and are ready to receive additional output from the assembly The input pulse FLAG and FLAG is used to activate optical isolator 014 The pulse and its complement U6A are available at jumper JIB USB is used as a latch to hold the flag status until the main frame processor read
36. ce ww poe pa arsenide 0 owed 8 resistor E o Omer qrcrovottisi 10 ge I wes mee n opium valus selected at Factory is average value shown pat may be omita and na 10g amperes type accigno Ne normaly seed x selenium Selected on spatia pe 4 meon normaly onen 5 pod de Nemours me a transistor 15 terminat e moret HR em GC wenimordede U inegrited ip Tesmodpec Vacuum tube ech bulb hotseat ste H ask Ar OW E Slade armen S X La neuer D vussomer 3 mp mee TB XF pom eta E 2 kes P pg fest poirt 2 o Actuator Assembly 6 1 Model 44428 A Table 6 2 Code List of Manufacturers Manufacturer Name Address 00000 Any Satisfactory Supplier 01121 Allen Bradley Co Milwaukee WI 53204 01295 Texas instr Inc Semicond Compnt Div Dallas TX 75222 04713 Motorola Semiconductor Products Phoenix AZ 85062 13606 Sprague Co Semiconductor Div Concord NH 03301 24546 Corning Glass Works Bradford
37. chronize all of the actuator assembly operations Ac tuator assembly outputs are accessed via the 03497 66515 Terminal Card Gate and flag handshake lines are also accessed via the Terminal Card 8 10 DETAHED THEORY OF OPERATION 8 11 Relay Drivers 8 12 Eight bit DO D7 digital input information is sup plied from the 3497A 3498A mainframe to octal Flip Flop ic s U9 and 010 See schematic number 1 Data is clocked into U9 when address line BAO is low and ad dress line BA1 is high Similarly data is clocked into U10 when address lines BAO and BAI are high and low respectively In either case the SLOT SELECT and DIG I O WRITE lines must both be low Refer to paragraph 8 16 for information on decoder ic U3 Split ting the control of the Flip Flops allows sixteen relays to be controlled by eight data bus lines 8 13 The latched output of the Flip Flops drive ic s U11 U12 and U13 which are high current internally diode protected relay drivers The output of the Flip Flops also connect to the inputs of tri state buffer ic s Actuator Assembly 8 1 Model 44428A DATA ACSUISITIDRA CONTROL UNIT ACTUATOR DIGITAL OUTPUT ASSEMBLY CARD DIG Reser ALS TERMINAL Bb 20 07 215 120 READ 010 1 9 WRITE SLOT SELECT E UE ss Me custo io as a L
38. closed or opened and can safely switch one ampere at 100 voits peak This makes the assembly ideal for swit ching power actuating to multiple external devices such as test fixture power or actuating an alarm The relays were specially selected for bounceless switching allowing the assembly to be used as a 16 bit wide digital output Section IH of this manual illustrates several typical applications for the assembly 1 6 Other features of the 44428A assembly include isolated Flag and Gate handshake lines and internal 5 volts non isolated or external up to 100 volts excita tion The assembly may also be configured as a 4X4 matrix 13 SPECIFICATIONS 1 8 Table 1 1 provides the detailed specifications for the hp Model 44428A Actuator Digital Output assembly 1 9 ACTUATOR CARDS COVERED BY THIS MANUAL 1 10 Each relay card is identified by a part number 03497 66514 and revision letter marked on the compo nent side of the circuit board This manual applies to cards with the model number indicated on the title page If changes have been made on this assembly after the manual was printed a yellow MANUAL CHANGES supplement sheet will be supplied with the manual This yellow sheet defines and explains each change and how to adapt the manual to the newer assemblies In addition backdating information con tained in Section VIT of this manual adapts the manual to earlier versions of the assembly RE
39. e d eue ceo gr Ed s ES qj u amp E Pl m 3 n us Tes m 5 ve Su 0 ur FT E D em RRA i Li s COT mu A14 03497 66514 IC TYPE 5 Y GND 5 560 01 8115973 10 20 92 741532 14 7 U3 7418139 16 8 04 7418123 16 8 95 741574 14 7 U6 741504 14 7 U7 U8 811597 20 10 09 010 7415273 20 10 U11 ULN2003A 9 5 6 7 8 012 ULN2003A 19 VIAR6 6 7 8 U13 ULN2003A 9 VIA R7 7 8 8 128 jeunes 10jenoV 9 8 5
40. e with the 3497 A under test 3 28 As with the manual front panel test there are two test objectives to verify the assembly signature and to check the readback function The test setup using an hp Model 85 and a sample program to test the assembly are shown in Figure 3 5 If you are using another controller the flowchart of Figure 3 3 will help in writing a test program 3 28 ACTUATOR APPLICATIONS Only qualified service trained personnel are to install re configure or make repairs to this assembly Use clean handling techniques antistatic techniques when inspecting removing replacing or re configuring the assembly Handle the card by its edges and do not the components to static discharge or excessive voltages To prevent serious personal injury extreme caution must be exercised when working with op tional plug in cards Model 444284 Loan ACTUATOR CARD sites he 3497A SETUP 1 Line switch OFF 2 insert card in desired slot 3 Line switch ON Seo Table 3 1 Stap Test Commande Keystroke Sequence Display Remarks 1 Verify Card SAn O uum Slot 000041 OCT identi Signature n slot e fies card in slot n as Channel high voltage actuator 0 5 lor Option 110 card 000041 OCT 2 Reset Reset Slot 3e Reset opens all Channel relays 3 Read Relay DR cl Slot Stetus n Slot
41. elow CONNECT 10 DIGITAL CARDS 10 ES TIMER un rer neo ROTE Connect the High Low and Guard common cable to the High Low and Guard common terminals on 34974 3498A rear panel containing the option card under test Connect the same 3497A 34984 rear panel High and Low common terminals to the DVM High and Low terminals If card under test is 3497A with a DVM option disregard the DVM connections Figure 4 1 Verification Connector Actuator Assembly 42 Model 44428A k2 k3 k4 ki REED RELAY Pressing this key enters the 44421A 44422A Reed Relay Verification segment and Response enter in the decade addresses of Decades A and B separated by a comma and press CON Response enter in one of the valid siot numbers that contains the digital card being tested and press Response enter in one of the vaiid siot numbers that contains the digital card being tested and press yields the following Enter address of the two reed relay decades Decade A Decade 8 TINUE Analog addresses range from 0 to 99 in the 3497A mainframe and start at channel 100 for the first 3498A Extender with each Extender capabie of using 200 analog channels For exemple if an analog assembly makes use of channels to 19 Decade A address starts at 6 and Decade B address starts at 10 The entered response would be 0 10 ACTUATOR Pressing this key en
42. er executed during this time period gate pulse LGT or a negative going gate pulse HGT T3 Data transfer complete Actuator card and can be selected with the actuator board plug Pla In 3497A weit until positive going flag pulse re either case the trailing edge of the gate pulse would be ceived used by the external circuitry utilizing this handshake capability The leading edge of this pulse coincides with 0 15 switching and the trailing edge indicates that the HALE HANDSHAKE relay or data output is stable Refer to Figure 2 3 for DATA TRANSFER COMPLETE handshake timing A typical application would have the 1 USECOND HALF Gate terminal connected to external circuit common HANDSHAKE INTIATED and the Gate terminal connected with external pull AT THIS TIME up resistor minimum value 10K ohm to a TTL input DATA DC A x 2 2 12 Flag Handshake Lines Flag inputs to the assembly are used to signify that the external circuitry has completed data transfer and are now ready to receive additional output from the actuator assembly 1 1 1 i i i i n i t i T i i i Either a positive going flag or a negative going flag may LON fare be used A typical application would have the Flag 1 pod line connected to the external circutry 5 volt supply LOW FLAS haz and the F
43. erforms the same task in one step read paragraph 3 7 DW1 102240 3 7 The Digital Write command has the form DWn nl where n1 is the octal value of the assembly state after the command has been executed Therefore the DW com mand affects all channels To use the DW command first decide what state you want the individual channels to be in after the command is executed Use a 1 to in dicate a closed channel and a 07 to indicate an open channel Then determine the octal value of the assigned state For example in paragraph 3 6 the command DWI1 102240 was given The value 102240 was deter mined as in Figure 3 1 3 8 3497A FRONT PANEL FEATURES 3 9 As shown in figure 3 2 each key on the alphanumeric keyboard has three functions the primary function indicated above the key the numeric function printed on the key cap i e 0 9 and and the shift or ALPHA mode A C D etc printed to the lower right of each key The blue SHIFT key shifts the keyboard to the ALPHA mode 3 10 There are two ways the DO and DC commands can be executed Digital Close can be initiated by using the Digital Close key numeric 8 without any previous keys pressed or by pressing the blue SHIFT key follow ed by D numeric 9 and C numeric 8 in either case channel channel oeral value 1 Figure 3 1 Determining the Octal Value Actuator Assembly 3 1 Model 44428A Table 3 1 Actuator Assembly
44. ete External device transmits flag pulse T4 Positive going trailing edge transition occurs to complete handshake Figure 8 3 Handshake Timing Actuator Assembly 83 Model 44428A Then check for a voltage across the coil when the relay is activated that is execute a Digital Close DC com mand for that relay If the coil is good and the relay energizing voltage is present but there is no continuity in the relay contacts the realy is bad and should be replaced 8 24 If the energizing voltage is not present work back toward U9 or U10 and then to the decoder U3 Check for logic transitions when the relay is activated The BASIC language program shown in Figure 8 4 may be used to alternately open and close a selected relay 10 I hp 44428A ACTUATOR TEST 20 1 HP 85 VERSION 30 CLEAR 40 DISP ENTER SLOT 4 OF ACTUATOR INPUTS 60 DISP ENTER CHANNEL FOR TEST 70 INPUT C 80 CLEAR 708 Q WAIT 500 90 DISP TEST IN PROGRESS 100 OUTPUT 709 DC S C 110 WAIT 100 120 OUTPUT 709 DO S C 130 WAIT 100 140 GOTO 100 150 END Figure 8 4 Actuator Exercise Program 8 25 Control Logic 8 26 If there is no response from the actuator assembly under any circumstances then suspect the control logic Actuator Assembly 8 4 U3 decodes the actuator commands from the main frame processor One output from U3 enables identity re
45. gistor U1 pins 1 19 If this signal is not available to Ul then the processor reacts as though the slot was empty Run the program in Figure 8 4 while monitoring all inputs and outputs of Ul U2A U2B and U3 to detect errors in operation 8 27 Handshake Logic 8 28 The processor detects that the handshake func tion has been disabled when it reads Identity Register Ul and finds bit 4 low If bit 4 is high then the pro cessor will halt execution of instrument command in structions and will monitor U1 until the handshake has been completed and bit 4 returns low For this reason in the following test make certain that jumper J2 is in the OFF position 8 29 Make the following connections on the Terminal card a Connect Gate to Flag and Gate to Flag b Connect a 10Kohm or higher value resistor in place of JMPRI c Use a short piece of wire to connect JMPR2 8 30 Verify that the handshake jumper J2 on the relay board is in the OFF position Run the program in Figure 8 4 Use a logic probe to trace the signal path from U4A pin 13 through isolator U15 and the Terminal Card back through isolator Ul4 and up to U6C pin 6 HET 4 675 1 HOM E 1 57 ON LET 3 oc 3 LPL 2 lo 3 OFF gh Ri S Dm Roa ET uic
46. he Terminal Block 4 4 Actuator Digital Output Test Program 4 5 Relay Contact Resistance Test 6 1 Mechanical 6 4 1 Functional Block Diagram 2 U3 Truth Table 3 Handshake Timing 4 Actuator Exercise Program 5 6 Actuator Assembly Card Actuator Terminal Card Table Page 4 3 Resistor 4 3 6 1 List of Abbreviations 6 1 6 2 Code List of Manufacturers 6 2 6 3 Replaceable Parts 6 3 7 HEWLETT lt PACKARD SAFETY SUMMARY The following general safety precautions must be observed during all phases of operation service and repair of this instrument Failure to comply with these precautions or with specific warnings elsewhere in this manual vielstes safety standards of design manufacture and intended use of the instrument Hewlett Packard Company assumes no liability for the failure te comply with these requirements This is a Safety Class 1 instrument GROUND THE INSTRUMENT To minimize shock hazard the instrument chassis and cabinet must be connected to an elec trical ground The instrument is equipped with a three conductor ac power cable The power cable must either be plugged into an approved three contact electrical outlet or used with a three contact to two contact adapter with the grounding wire green firmly connected to an electrical ground safety ground at the power o
47. ine read directly up from the load current value to its intersection with the appropriate load voltage line The value of is then read from the left hand RESISTANCE scale For ac loads peak current and voltage values must be used Figure 2 1 R C Network Nomograph Courtesy C P Clara amp Company Actuator Assembly 2 2 Model 44428A DATA VALID AT THIS TIME NORM NORM FIRST HALF OF HANDSHAKE 1 CLOSED i DATA TRANSFER COMPLETE i 1 i LOAD LOAD ISECOND HALF OF 8 HANDSHAKE INTIATED ACTUATOR 2 2 THIS TIME bam HIGH Figure 2 2 Relay Contact Protection Circuit HEN f the actuator assembly after insertion in the 3497A 3498A mainframe to settle the mercury to the bottom i of the relay HISH FLAS ES HFLE 1 2 10 Relay Board Configuration The gate and flag handshake lines were designed to operate with standard logic levels Diode protection is used on both the ae gate and flag lines These lines are optically isolated T1 16 bit wide date word transferred to actuator from the actuator board when the Terminal Card card relays jumpers 1 2 3 and 4 are open T1 T2 Settling time for relays and drive circuits 3ms i iti i T2 Data Valid ready for transfer to external device 2 11 Gate Handshake Lines Either a positive going T2 T8 Data transf
48. lag line driven by TTL device Jumper plug ILFLG DNE P2 the relay circuit board allows on off selection of now E the Flag handshake mode i ie te i rath H I 2 13 Terminal Card Configuration If jumpers 1 2 3 actuator 3 5 11 T 17374 12 1314 and or 4 on the 03497 66515 terminal card are used the 5 handshake lines no longer optically isolated For ex TR a 16 wide data word transfered to card ample with the Gate jumpers a 10K ohm resistor can T1 T2 Settling time for relays and drive circuits be connected in place of 11 and J2 would be a short T2 Data valid ready for transfer to external device piece of wire This would eliminate using an external first half of handshake ull up resistor T2 F3 Data transfer executed duing this time period T3 Data transfer complete External device transmits flag pulse 2 14 An example using the Flag lines would be to con T4 Positive going trailing edge transition occurs to nect jumper J3 short piece of wire and connect a complete handshake switch across J4 Now the flag handshake would be ac tivated by closing the switch Figure 2 3 Handshake Timing Diagram Actuator Assembly 2 3 Model 44428A 2 15 REPACKING FOR SHIPMENT 2 16 Tagging For Service If the actuator assembly is being returned to Hewlett Packard for service please attach a tag to the assembl
49. llows you to Actuator Assembly 3 4 determine from the 3497A front panel which relays are closed and which are open Figure 3 4 step 3 shows the keystroke sequence to read the relay status of the ac tuator assembly in slot n Since the RESET key was pressed all relays are open the slot number and 000000 OCT will be displayed and all channel indicators will be off 3 22 STEP 4 CLOSE RELAYS 3 23 Execute the command DWn 177777 to close all relays as shown in Figure 3 4 step 4 After the EXECUTE key is pressed the display will indicate the slot number channel indicators 0 through 15 and 177777 OCT on the 3497A display This indicates that all sixteen relays are closed 3 24 STEP 5 OPEN RELAYS 3 23 Execute the DWn 0 command to open all relays This is shown in Figure 3 4 step 5 After pressing the EXECUTE key the 3497A display will indicate the siot number 000000 OCT and all channel indicators off This completes the front panel verification of the hp Model 44428A Actuator Digital Output assembly 3 26 ACTUATOR ASSEMBLY TEST USING A CONTROLLER 3 27 The actuator assembly test can also be executed from an external computer controller The test setup shown in Figure 3 5 uses an hp Model 85 computer and HP IB interface to control the 3497A If your 3497A uses an RS 232 Serial Interface the hp 85 Op tion 001 Interface System must be used If you use another controller the interface system must be com patibl
50. losed contacts and then execute the command DC 177777 to close all relays Then perform the checks on the Nor maliy Open contacts Model 44428A 4 17 Testing Thermal Offset 4 18 Thermal Offset is the voltage generated by the relay contacts themselves and is a function of the heating of the relay coil To perform the test the assembly must remain in the 3497A or 3498A main frame The mainframe must be turned on for a minimum of hour before performing the tests The test should be performed on each individual relay 4 18 Procedure a Remove all cables from the actuator terminal card b Connect a voltmeter between the normally closed and common terminals on the terminal card Check for a voltage of less than 20 volts d Repeat the test for each relay testing both normal ly closed and normaily open contacts Actuator Assembly 4 5 4 6 ADJUSTMENTS SECTION V 5 1 INTRODUCTION 5 2 There are no adjustments calibration to be made on the hp Model 44428A Actuator Digital Output assembly Refer to Section IV Performance Tests for operational verification procedures after repairs have been made Actuator Assembly 5 1 5 2 REPLACEABLE PARTS SECTION VI 6 1 INTRODUCTION 6 2 This section contains information for ordering replacement parts Table 6 3 lists parts in alphanumeric order of their reference designators and indicates the description hp part number of each part together with any applic
51. ove the power cord from the 3497A 3498A before removing or installing any plug in option assemblies External circuits connected to the hp Model 44428A Actuator Digital Output assembly must be fused at 1 ampere or less and rated at 100VA or less per channel Voltages must not exceed 100 volts peak To achieve maximum relay contact life and prevent RFI from radiating if arcing occurs R C relay contact protection is required when loads greater than 12 volts at 65 mA are connected to the assembly Use the nomograph in Figure 2 1 to determine the correct value of R and C Use R C networks on both the NO and NC contacts if both contacts are switching power levels requiring this protection see Figure 2 2 2 7 Power Requirements Power for the operation of the plug in assembly is provided by the 3497A 3498A main frame 2 8 Interconnections Remove the cover on the hp Model 03497 66515 Actuator Terminal Card and con nect the devices that will be actuator controlled to the appropriate terminals Normally Open NO Normal ly Closed NC and Common C Route the wires through the strain relief cutouts Replace the cover and plug the terminal card on to the actuator relay circuit board Next insert the assembly into the desired slot in the main frame 2 9 Remember that the arrows on the relays must always point upward 12 O clock position Gently tap Actuator Assembly 2 1 Model 44428A CONTACT PROTECTION
52. p ACTUATOR DIGITAL OUTPUT ASSEMBLY OPTION 110 44428A HEWLETT PACKARD TABLE OF CONTENTS Section Page 1 GENERAL INFORMATION 1 1 Introduction 1 4 Description 1 7 Specifications 1 9 Actuator Cards Covered by this Manual 11 Accessories 13 Safety Considerations 15 Equipment Required but no Supplied 1 17 Equipment Available 1 INSTALLATION 2 1 Introduction 2 3 Initial Inspection 2 6 Preparation for Use 2 15 Repacking for Shipment OPERATION 3 1 Introduction 3 3 Actuator Card Commands 3 8 3497A Front Panel Features s 3 12 Actuator Assembly Check Using the 3497A Front Panel 3 2 3 15 Step 1 Verify Card Signature 3 3 3 18 Step 2 3 4 3 20 Step 3 Interrogate Relay Statu 3 4 3 22 Step 4 1 Relays 34 3 24 Step 5 Open Relays 3 4 3 26 Actuator Assembly Test Using a Controller 3 29 Actuator Applications IV VERIFICATION CHECKS 4 1 Introduction 4 3 Recommended Test Equipment Figure 2 1 R C Network Nomograph 2 2 Relay Contact Protection Circuit 2 3 Handshake Timing Diagram 3 1 Determining the Octal Value 3 2 3497A Front Panel Features 3 3 Actuator Assembly Check Flowchar 3 4 Actuator Assembly Check Using the 3497A Front 3 5 3 5 Actuator Assembly Check Using an hp 85 3
53. s the identity register Jumper 32 is used to enable or disable the handshake function 8 20 TROUBLESHOOTING INFORMATION 8 21 Instrument Preparation To prepare the hp Model 44428A Actuator Digital output assembly for troubleshooting perform the following steps These procedures were designed for use by qualified service trained personnel only To prevent serious personal injury extreme cau tion must be exercised when working with plug in assemblies The 3497A 3498A may contain voltages as high as 357 volts within the cabinet enclosures Use clean handling techniques when servicing this printed circuit board a Verify that the mainframe line switch is off b Turn off all other external sources of input power to the 3497A and or 3498A and remove the safety cover from the rear of the instrument Remove all input terminal cards and or verify that all sources of signal input power are within 40 volts of ground potential d Unplug the 44428A assembly to be serviced and plug the 03497 67913 Extender Cable in its place Then plug the actuator assembly onto the extender board e Connect a logic probe to 5 volts and GND as in dicated by designated pins on the printed circuit board f Turn the mainframe ac line switch to the on posi tion 8 22 Relay Decoding and Driving Circuits 8 23 When a malfunctioning relay is suspected first check the relay with an ohmmeter for an open Model 44428A DA
54. sed in backdating Section VID The number of the subscript indicates the change in backdating which should be refered to Table 6 1 List of Abbreviations Antv moas kenriydelsbperseconii NBD regata positive sera at Izero temperature SPF ingle polo double tet a ampere s 00 insite cimas 10 SPST ive single Tow Au nar separately repiacesbie noe incandescent ta tamaium c p Falke m ches TE empresas onion E aid order by Manum coeds pu Men 1073 OD tse amator 109 common Anz 701 Stone E comperition P ES mer oa connection i auctor picoamnerete pond in voted cea E deposted taper BF Ponto 10522 frade E dai poss douce throw E ah wee votago alternating working voltage lego mA 10 pie Po Variatie p 1078 honz p cient working voltage E 0 megotmia 102 8 ohms pay encapsuinted por wars manuiacnier penkto peak w war E pare ser milion wir Working inverse voltage Fer A prete mper costicien wc 2 1 dvo dong te mets andor tlecan
55. ters the Actuator Digital Output Verification test and yield the follow ing Enter the slot of the digital card to be tested 10 4 10 89 CONTINUE Slots 5 to 9 are used by the 3497A mainframe and cannot be accessed The first 3498A Extender begins with slot 10 DIG INPUT Pressing this key enters the Digital Input interrupt Verification test and yields the tollow ing Enter the slot of the digital card to be tested 8 4 10 89 CONTINUE Slots 5 to 9 are used by the 3497A mainframe and cannot be accessed The first 3498A Extender begins with siot 10 STOP Pressing this key will terminate the program when in the Menu mode but will immediately return you to the Menu mode during the testing of an assembly except when data is to be input CHANGE Pressing this key allows you to change the HP IB address of the Scanner and DVM Enter in the new Scanner address and press END LINE Enter in the new DVM address and press END LINE NOTE L Holding the computer s shift key down while pressing k 1 k2 or will per mit you 10 select the number of passes or iterations for each test This is a good tool for detecting intermittent errors Figure 4 2 CRDVER Key Operations 4 10 Operational Verification Checks Using a Resistor Network 4 11 The following paragraphs describe an operational verification procedure that uses a resistor network that you wire on the terminal card Resistors with values Val hp Part
56. ut assembly Also included is a functional block diagram of the assembly 8 3 SAFETY CONSIDERATIONS 8 4 The 3497A Data Acquisition Control unit and the associated plug in option assemblies have been designed in accordance with international safety standards However this manual contains information and warn ings that must be followed to insure personal safety dur ing operation and maintenance Maintenance procedures in this section are intended for the use of qualified service trained personnel only Only qualified ser vice trained personnel ure to install re configure or make repairs to this assembly Use clean handling techniques antistatic techniques when inspecting removing replacing or re configuring the assembly Handle the card by its edges and do not sub Ject the components to static discharge or ex cessive voltages To prevent serious personal injury extreme caution must be exercised when working with optional plug in cards Potential shock hazards voltages up to 170 volts peak can exist between exposed guard and chassis on both the front when front panel is open and the rear of the 3497A 3498A when safety cover is remov ed Disconect 3497A 3498A power cord disconnect all input output lines to from the mainframe and option cards and make certain that wires to the actuator terminal cards are free of voltage sources prior to handling or inserting or extracting the assembly 8 5 BLOCK DIAGRAM THEORY OF O
57. utlet The power jack and mating plug of the power cabie meet international Electrotechnical Commission safety standards DO HOT OPERATE IN AN EXPLOSIVE ATMOSPHERE Do not operate the instrument in the presence of gases or fumes Operation of any electrical instrument in such an environment constitutes a definite safety hazard KEEP AWAY FROM LIVE CIRCUITS Operating personnel must not remove instrument covers Component replacement and internal adjustrnents must be made by qualified maintenance personnel Do not replace components with power cable connected Under certain conditions dangerous voltages may exist even with the power cable removed To avoid injuries always disconnect power and discharge circuits before touching them DO MOT SERVICE OR ADJUST ALONE Do not attempt internal service or adjustment unless another person capable of rendering first aid and resuscitation is present DO SUBSTITUTE PARTS OR MODIFY INSTRUMENT Because of the danger of introducing additional hazards do not install substitute parts or per form any unauthorized modification to the instrument Return the instrument to a Hewlett Packard Sales and Service Office for service and repair to ensure that safety features are main tained DANGEROUS PROCEDURE WARNIRGS Warnings such as the example below precede potentially dangerous procedures throughout this manual instructions contained in the warnings must be followed
58. y indicating the nature of the problem return address person to contact phone number and complete model and serial number 2 17 Packing When shipping the assembly it is recommended that the original packing material be us ed Antistatic packing material should be used when Actuator Assembly 2 4 shipping DO NOT wrap in ordinary plasti bubble pack If proper materials are not available contact your local Hewlett Packard Sales and Service office to obtain adequate materials If the assembly is being returned for service the office will also provide the address of the nearest service office to which the assembly should be sent Mark the package FRAGILE to insure careful handling In any corresspondence concerning the assembly refer to the assembly by complete model and serial number OPERATION SECTION 3 1 INTRODUCTION 3 2 This operating section lists and describes com mands applicable to the hp Model 44428A Ac tuator Digital Output assembly This section describes a simple operator verification and several typical ap plications for the actuator assembly A general discus sion of 3497A front panel features and a general discus sion of commands is also provided 3 3 ACTUATOR CARD COMMANDS 3 4 In the Actuator Digital Output assembly any com bination of relays channels may be opened or closed simultaneously This is done by specifying the slot number where the assembly is located and the channels to
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