Home

The 5B Series User`s Manual

1. 3 5 3802 Schemalke usce ends inhians d amd 3 4 Address Selection Pins Default Jumpers cccscccssssssssesecesssssvessessssstecsesssscsvsess 3 6 5B03 Wiring Diagram 3 7 5804 Wiring Diagram 0 240 3 7 Power Connection 3 8 Input Field Connections estis e erase creo ede ue Rd 3 9 5 01 and 5802 Backplane Mounting Dimensions 3 9 AC1363 Rack Mount Diagram esee 3 9 Rack Mount Assembly Drawing 3 10 AC1324 Diagram si ccs 3 10 5B Series Module Outline and Pin Designations 4 2 5 01 Backplane Channel 4 1 1361 Connection tede URINE TUR 4 3 1 61 4 3 1361 Circuit 4 4 1362 Outline cte tete Pes 4 4 1360 4 5 Double Isolation Protection 4 6 Current Loop Input from Loop Powered Transmitter 2 Wire 4 7 Current Loop Input from Locally Powered Source 3 4 wire Transmitter 4 7 List of Tables Description Available 5B Series Modules 2 2 1 2 5B Series Input Modules eet in
2. gt lt S WRITE CHANNEL N C N C CH1 A CH2 A CH3 A CH4 A CH5 A CH6 A CH7 A CH8 A CH9 A CH10 A CH11 A CH12 A CH13 A CH14 A CH15 A CHO B CH1 B CH2 B CH3 B CH4 B CH5 B CH6 B CH7 B CH8 B CH9 B CH10 B CH11 B CH12 B CH13 B CH14 B CH15 8 12 1 91 5 02 Logic Table Triple Board Application A third board can be added to a dual application and this will be called board C This board will have jumpers in location 3 and 8 RD R5 1 X X 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 2 A 5 2 O O gt lt gt lt 2 CO Q 2 Ht OOK HK OO gt RO READ WR 5 4 2 CHANNEL N C CHO C CH1 C CH2 C CH3 C CH4 C CH5 C CH6 C CH7 C CH8 C CH9 C CH10 C CH11 C CH12 C CH13 C CH14 C CH15 C 5 CQ C Q Q OQ X 08 0 0 O x lt HA gt lt 1 5 0 OSC X
3. Input Offset 1 Output Offset i204VPC Gain 25 ppm of reading C Input Resistance Normal 5 650 Power Off 40 650 Overload 40 kQ 650 kQ Input 0 1 10 Hz 1 0 2 n Vrms RTI 2 Vrms RTI Output 100 kHz 200 u Vrms RTO Tanith 545 Rie Span Input to Output 1500 Vrms max meets IEEE STD 472 SWC Continuous 160 dB all ranges 160 4 span 2 V 150 dB span 10 V 2 25 x 2 25 x 0 60 52 mm x 52 mm x 15 mm Environmental Temperature Range 25 C to 85 Rated Performance 40 to 85 409 to 85 0 to 95 60 C noncondensing 0 5 span error 400 MHz 5 W 3 Temperature Range Operating Temperature Range Storage Relative Humidity MIL 202 RFI Susceptibility Oupur Selection Time C 50102009 DWN RM DARN RT Specifications same as 5B30 Output Selection Input 150 19 50 mA 2 is the nominal input voltage that results a 0 V output Max Logic 0 Includes the combined effects of repeatability hysteresis and nonlinearity and assumes very high load resistance Transient CMR 50 or 60 Hz 1 kQ in Either or Both Input Leads NMR G00r 60H 05 01 Input Protection Continuous 240 Vrms max continuous Transient meets IEEE STD 472 SWC O S0 Continuous Short to Ground 4 Min Logic 1
4. sr CO CO OQ 0000 00 O gt lt x R3 R2 CO Q OQ 4 CO C0 gt lt R1 DOHA HOO gt lt gt lt RO READ WR 5 4 CHANNEL cc 2 2 2 0 2 gt lt gt lt N C N C CHO A CH1 A CH2 A CH3 A CH4 A CH6 A CH7 A CH8 A CH9 A CH10 A CH11 A CH12 A CH13 A CH14 A CH15 A CHO B CH1 B 2 CH3 B CH4 B CH5 B CH6 B CH7 B CH8 B CH9 B CH10 B CH11 8 CH12 B CH13 B CH14 B CH15 B gt lt cL 4 4 4 CO CD CD CD O Q QO QO gt lt z i lA 4 4 4 gt lt x CO 3 st CO aH HSH QD gt lt w2 Wl ca 0 00 gt lt x
5. 9 i TERMINAL BLOCK FOR FIELD WIRING Figure 4 3 AC1361 Connection 10 1 95 Thus there is no need to keep a sensor associated with a specific module or to dedicate channels exclusively for thermocouple use Figure 4 4 shows the limits of the outline of the AC1361 sensor package This sensor should be placed as close to the field wiring terminations as possible It is not neces sary for the body of the sensor to touch the terminal block the thermal path to the sensor is primarily through its leads It is important whenever thermocouples are connected to a system to minimize thermal gradients in the neighborhood of the field terminals Heat sources should be placed as far from the screw terminals as possible Electrical specifications of the sensor Table 4 1 are 0 54 13 7 0 05 1 3 0 22 5 6 Figure 4 4 AC1361 Outline provided only to facilitate inspection the accuracy specifications of 5B Series thermocouple modules include the effects of a worst case sensor The test circuit for the AC1361 is shown in Figure 4 5 Current Conversion Resistor Test 510 50 75 mV 25 0 Avg Vs with T 2 500 0 04 mV C 5 C to 45 Table 4 1 AC1361 Electrical Specifications 1361 NOTE AMPLIFIER OFFSET VOLTAGE PIN 2 MUST BE LESS THAN 50 MICROVOLTS TRIM AMPLIFIER IF REQUIRED Figure 4 5 1361 Test Cir
6. G 29 I2v SANANI 304 2016634 SAOSNAS FINLVASAWAL DLD IAY 20 10 1 51 13NNYHD 29 9 o woov oov now WODY 9 2 gt 7057 2 z wt 0 1 woo 71 OO 610 9 9 SUONI 247 li m eu 5 lor got is viva ty v gue di 52 9 9i Ter T SE TOT la 7 d u lg 0 7 n in SMS seat T 5 P 24 12 1 91 Figure 3 2 5B01 Schematic 3 2 0000000000000 o VIEW MATING CONNECTOR PN748290 6 OR EQUIVALENT Figure 3 3 5 01 System Connector Pihout Grounding Each 5 01 backplane is factory configured with jumpers W1 W3 and W4 installed Jumper W1 grounds the shield wires in the ribbon cable pins 3 6 12 15 18 21 and 24 at the 5B01 backplane This will usually be the primary ground connection between the 5B01 and the measurement system This connection is required if output modules will be used on the backplane Itis also required if there is no high impedance sense input input Lo of a differential or pseudo differential syste
7. 0 475 11 6 mm 0 375 9 5 2 250 57 2 SOCKET 0 O38 PIN DESIGNATIONS WRITE EN 0 RESERVED YOCOM 19 45V 17 READ EN 0 Vour 0 095 2 4 gt 0 145 3 7 0 245 6 2 ls VIN POWER COM IN HI 4 EXC 2 SENSOR INLO 5 EXC 3 SENSOR Figure 4 1 5B Series Input Module Outline and Pin Designations 10 1 95 4 1 INSTALL AMPSOCKET P N 645500 1 3MM SWAGE INSERT PEM KFS2 M3 025 SQ PIN ASSY SAMTEK CJC SOLDERED IN TERM BOARD SOLDERED IN ERN 1 0 0 400 10 2 0 050 1 3 0 100 2 5 0 250 6 4 de 0 100 2 5 1 0 0 525 d 5 13 3 1 al o al 70 19 0275 0075 THREADED INSERTS SHOULD BE SURROUNDED BY GROUNDED TRACK ON BOTH SIDES OF THE BOARD mj Ie XR VR 5 O 0 AN 21 0 100 2 5 0 100 2 5 0 200 5 1 0 300 7 6 0350 0 500 12 7 7 6 4 2 5801 4 2 12 1 91 This section addresses board design issues related to process side of the isolation barrier Field Terminations Screw terminals will usually be required for connecting field wiring to the modules Each module will use a mini
8. 5835 03 0 C to 200 C 0 26 116 dB 60 Hz 108 dB 50 Hz 32 F to 392 F 5B35 04 0 C to 600 C 0 78 240 V rms max 32 to 1112 C37 90 1 1989 5835 05 100 C to 200 0 60 57 8 mm 59 1 mm 15 1 mm 70 grams 40 to 85 C 40 C to 85 C 148 F to 392 F 0 25 mA 100 Copper a 0 004274 1 0 mA 5835 01 0 to 120 C 0 23 10 Q at 0 C i mE 2 32 F to 2482 m 5 35 02 0 C to 120 C 0 23 10 Q at 25 C 32 248 250 V rms max 120 Q Nickel 0 00672 190 dB 5B35 N 01 0 C to 300 0 40 C 32 F to 572 F See Table I Standard output range for all models is 0 V to 0 05 Span 5 V Custom input output ranges are available including versions for the 100 Q Platinum 0 0 019C C 0 003916 RTD See Table II 20 30 ppm of Reading C Table II Custom Model Ordering Guide 0Vto 5V Order Model 5B35 CUSTOM plus Customer Specified Information 250 4Hz Customer Specified Information 100 ms Sensor Type Input Range Output Range Available Low High Low High Sensor Types Limit Limit Limit Limit Hide 100 Q Pt a 0 00385 200 C 850 OV 45V 100 Pt a 0 003916 200 C 850 5V 0 3 mV p p 10 Q Cu a 0 004274 Consult Factory 5 1 5 mV 120 Q Ni 0 00672 Consult Factory 45V 6 mV p p i d Cont
9. Cold Junction Compensation Initial Accuracy 25 30 259 0 75 max 5 10 45 0 5 C 0 0125 Vis RTD 150 mW GO mA 52mm 52 mm 15 mm Environmental Temperature Range Rated Performance 259 to 85 Temperature Range Operating 40 to 85 Temperature Range Storage 40 to 85 0 to 95 60 noncondensing 0 5 span error 400 MHz 5 W 3 Relative Humidity MIL 202 RFI Susceptibility Includes the combined effects of repeatability hysteresis and nonlinearity and assumes very high load resistance 2 1 V C is equivalent to 020 C C for Type J thermocouples and 025 C C for and thermocouples The output resistance value can be used to determine gain error when the module is driving a resistive load Note however that loads heavier than 20 kQ will also degrade nonlinearity and gain temperature coefficient When used with AC1361 sensor see Chapter 4 which is provided on each channel of 5B Series backplanes and on the AC1360 Specifications subject to change without notice 10 1 95 2 21 1367 Voltage Switch Input Module The AC1367 voltage switch input module allows the 5B user to connect an existing conditioned signal into the 5B Series backplane This module accepts a 5 V to 5 V input and provides a 5 V to 5 V output The module i
10. 10 752 F 0 5 5857 54 5857505 3837 8 06 Type N 5837 1108 DIFF SIGNAL ISOLATION POWER __ ISOLATION 17 6 LTI PWR FILTER Dn Figure 2 5 5B37 Functional Block Diagram where the output switch is not used the enable input Should be grounded to power common to turn on the Switch as it is on the 5 01 backplane The single 5 V supply powers a clock oscillator which drives power transformers for the input and output circuits The input circuit is of course fully floating In addition the output section acts as a third floating port eliminating many problems that might be created by ground loops and supply noise The common mode range of the output circuit is limited however output common must be kept within 3 V of power common To determine the output voltage of the 5B37 module refer to Appendix D The 5B37 transfer function is given for each model e g 5B37 N 08 Note current path must exist between power common and output common for proper operation of the demodulator and output switch See Chapter 4 for details Caution When evaluating 5B37 modules with a mV source the cold junction temperature sensor will introduce errors See the AC1360 discussion in Chapter 4 Output Range 0 5 V 5 37 03 10 1 95 5837 Specifications typical 25 and 5 V Power Accuracy 0 05 span 3 10 uY RTI 0 05 Vz
11. 25 89059 span HOV RTI 405 0058 span 300556 27 30025 span picem Stability vs Ambient Temperature Input Offset 1 20 Output Offset 40 Gain 25 ppm of reading C 50 ppm of reading C Input Resistance Normal 200 650 Power Off 40 KQ 650 Overload 40 650 kQ Noise Input 0 1 10 Hz 0 4 u Vrms RTI 2 Output Vi tFS 20 mV peak peak Vi 0 10 mV peak peak 748 Rise Time 10 90 span Hu Input to Output Continuous 1500 Vrms Transient meets IEEE STD 472 SWC CMR 50 or 60 Hz 15 some males Input Protection Continuous 240 Vrms Transient meets IEEE STD 472 SWC Voltage Output Protection Continuous Short to Ground Selection Time C Ove 2000 76 Output Selection Input Max Logic 0 41V Min Logic 1 2 5 V Max Logic 1 36 V Input Current 0 04 mA EMAC 52 mm x 52 mm x 15 mm Environmental Temperature Range Rated Performance 259 to 85 C Temperature Range Operating 40 C to 85 C Temperature Range Storage 409 to 85 C Relative Humidity MIL 202 95 60 noncondensing Susceptibility 0 5 span error 400 MHz 5 3 S
12. 500 Q 1 kQ Sensors 10 Sensor COMMON MODE VOLTAGE Input to Output Continuous Input to Power Continuous Power to Output Continuous COMMON MODE REJECTION CMR 50 Hz 60 Hz ACCURACY Initial 25 C Stability vs Temperature 40 C to 85 C Input Offset 100 500 1 Sensors 10 Sensor Output Offset Gain OUTPUT Range Resistance Bandwidth 5 dB Step Response Time 1096 to 90 Range Noise Input 0 1 Hz to 10 Hz Output 100 kHz Bandwidth Output 1 MHz Bandwidth Output 5 MHz Bandwidth Protection Current Limit Enable Time C Load 0 pF to 2000 pF Enable Control Max Logic 0 Min Logic 1 Max Logic 1 Input Current 0 1 POWER SUPPLY Voltage Rated Performance Current Sensitivity CASE SIZE Maximum WEIGHT ENVIRONMENTAL Temperature Range Rated Performance Storage Temperature Relative Humidity RFI Susceptibility NOTES See Table I See Table II 21000 MQ 200 200 116 dB 60 Hz 108 dB 50 Hz 240 V rms max ANSUIEEE 37 90 1 1989 0 25 mA 0 1 mA 0 005 VQ 0 01 0 0 1500 V rms max 1500 V rms max 250 V rms max 170 dB 0 0896 Span 0 004 0 010 20 30 ppm of Reading C OVtot5 250 4Hz 100 ms 0 2 pV rms 100 pV rms 0 3 mV p p 1 5 mV p p 6 mV Continuous Short to Ground 9 mA 6 ps to 1 mV of Vout 0 8V 2 4 V 100 V 0 5 pA 5 5 15 m
13. Division 2 Groups A B Cand D Locations CE Approved EMC Directive In Heavy Industrial Applications APPLICATIONS Front End Data Acquisition Systems Process Control and Monitoring Product Test GENERAL DESCRIPTION 5808 and 5B08 MUX backplanes accept up to eight 5B Series input output modules providing direct screw terminal 1 interfacing to sensors and transducers as well as a 26 pin connector I O interface to a measurement and control system refer to Figures 2 and 3 for functional block diagrams 5 CH9 COM 5B08 backplane I O signals are independently available while 2 7 CH 10 Model 5B08 MUX I O signals are controlled via an on board multiplexer providing a bus for input signals and a separate bus COM for output signals 5B Series modules can be mixed or matched CH3 11 and may be changed without disturbing field wiring Each channel has a cold junction temperature sensor Model AC1361 to accommodate thermocouple modules 5B37 or 5B47 Both 15 backplanes require an external 5 V dc regulated power supply CH4 13 CH 12 13 O 0 Reverse power supply protection is provided as well replace uU ib able 4 ampere fuse a power ON green LED indicator 999719 eH COM 21 CH 15 SB08 SYSTEM CONNECTORS Signal connections between the 5 08 and the associ
14. Max Logic 1 Input Current 0 The output resistance value can be used to determine gain error when the module is driving a resistive load Note however that loads heavier than 20 kQ will also degrade nonlinearity and gain temperature coefficient Specifications subject to change without notice Voltage Output Protection Continuous Short to Ground Power Supply Voltage 45 V 5 10 1 95 5832 Current Input Module The 5B32 current input module measures a 4 20 mA or 0 20 process current input signal by reading the voltage across a precision 20 resistor It provides a 010 5 V output signal Figure 2 3 is a functional block diagram for the 5B32 Since the resistor cannot be protected against destruction in the event of an inadvertent connection of the power line it is provided in the form of a separate pluggable resistor carrier assembly Extra current conversion resistors are available as accessories model number AC1362 see Note 2 A protection circuit assures safe operation even if a 240 Vrms power line is connected to the input screw terminals A three pole filter with a 4 Hz cutoff provides 60 dB of normal mode rejection and CMR enhancement at 60 Hz One pole of this filter is located at the module input while the other two poles are in the output stage for optimum noise performance A chopper stabilized input amplifier provides all of the module s gain and assures low drift This amplifier operates on the
15. modules incorporate a laser trimmed resistor network obviating the need for potentiometer adjustments and constant calibration The 5B Series provides system designers with an easy to use solution for analog I O in a minimum of board space The modules standard pinout and easy installation simplify design There are also a number of backplanes which provide a complete signal conditioning solution for end users Each backplane incorporates screw terminals for field wiring inputs and outputs and cold junction mV V THERMOCOUPLE RTD STRAIN GAGE 4 20mA 0 20mA SENSOR OR TRANSMITTER PROCESS ACTUATOR 4 20mA 0 20mA INPUT MODULES ACCEPT REAL WORLD ANALOG INPUTS AND PROVIDE ISOLATED HIGH LEVEL ANALOG OUTPUTS INPUT MODULE OUTPUT MODULES ACCEPT HIGH LEVEL VOLTAGE INPUTS AND PROVIDE ISOLATED PROCESS CURRENT OUTPUTS OUTPUT MODULE 0 TO 5V 5V ANALOG INTERFACE COMPUTER 5V 5V Figure 1 1 Block Diagram of a General Measurement and Control Application Using the 5B Series 10 1 95 1 1 compensation sensors for thermocouple applications 19 relay rack compatible backplanes that can hold up to sixteen modules are available as well as DIN rail compatible one and two channel backplanes Applications The 5 Series provides an easy and convenient solution to signal conditioning problems of both designers and end users with measurement and control applicati
16. 100 mV to 100 mV 5 5 10 mV to 10 mV 0to 45 V 50 mV to 50 mV 010 5 100 mV to 100 00 5 1Vtos1V 5Vto45V 5 V to45 V 5 V to 5 V 10 V to 10 V 5 V 0 5 V 1V to41V 0to45 V 5 V 5 0to45V 10 V to 410 V 0 5 The 04 05 and 06 ranges of models 5840 and 5841 map bipolar input ranges into unipolar output ranges 0 maps to 42 5 V 2 16 ANTI ALIASING LTER LASER ADJ REF 5 POWER pi ISOLATION 17 pe 3 PWR FILTER Figure 2 8 5840 and 5841 Functional Block Diagram SIGNAL ISOLATION 20 o READ EN 0 1 NC 2 NO where the output switch is not used the enable input Should be grounded to power common to turn on the Switch as it is on the 5 01 backplane A single 5 V supply powers a clock oscillator which drives power transformers for the input and output circuits The input circuit is of course fully floating In addition the output section acts as a third floating port eliminating many problems that might be created by ground loops and supply noise The common mode range of the output circuit is limited however output common must be kept within 3 V of power common Note A current path must exist between power common and output common for proper operation of the demodulator and output switch See Chapter 4 for details 12 1 91 5840 and 5841 Specifications typical
17. 1832 F 0 500 C to 1750 C 932 to 3182 F 500 to 1750 C 932 to 3182 F 500 C to 1800 C 932 F to 3272 F Type J Type J Type K Type K Type T Type T Type E Type R Output Range Accuracy typ LINEARIZER ACTIVE CHOPPER DIFF SIGNAL ISOLATION 20 o 0 194 VO COM 224 READ EN 0 Figure 2 10 5B47 Functional Block Diagram then filtered and buffered to provide a clean low impedance output series output switch is included to eliminate the need for external multiplexing in many applications This switch has a low output resistance and is controlled by an active low enable input In cases where the output switch is not used the enable input should be grounded to power common to turn on the Switch as it is on the 5 01 backplane The single 5 V supply powers a clock oscillator which drives power transformers for the input and output circuits The input circuit is of course fully floating In addition the output section acts as a third floating port eliminating many problems that might be created by ground loops and supply noise The common mode range of the output circuit is limited however output common must be kept within 3 V of power common Note current path must exist between power common and output common for proper operation of the demodulator and output switch See Chapter 4 for details When evalua
18. AC1344 provides 10 jumpers 5B02 Backplane The 5B02 diagrammed in Figure 3 4 is also a 16 channel backplane It incorporates input and output buses that take advantage of the internal series output switches in the input modules and the track and holds in the output modules Designers integrating the 5B02 into a measure ment and control system do not need external multiplex ers and can use a single digital to analog converter to serve numerous output channels A schematic of the 5B02 is shown in Figure 3 6 Digital outputs from the host data acquisition system are used to address the 5B Series modules and designate inputs and outputs Only one analog input one analog output and a number of digital outputs are required to address up to 64 analog input output channels ADDRESS DECODERS 5V CHANNEL 0 1 CHANNEL 1 OUTPUT ENABLE ETE PS TE ES OE EE a 4 E CHANNEL 14 CHANNEL 15 Figure 3 4 5B02 Diagram Connector Pin Usage Signal connections between the 5 02 backplane and the associated measurement or control system are made at P1 The pinout of this connector is illustrated in Figure 3 5 Vreao 1 2 0 COM 3 4 SNSLO 10 COM 5 LSB 7 READ INPUT BIT3 9 ADDRESS 5 11 158 13 WRITE OUTPUT 3 15 ADDRESS BIT 5 17 6 READ ENB 0 19 20 WR
19. Chapter 2 Module Specifications Features Compact Low Cost Signal Conditioners Analog Input Modules for Direct interface to Sensors Thermocouples RTDs and Strain Gages Millivolt and Voltage Sources Process Current Inputs Analog Output Module 4 20 mA or 0 20 mA Process Current Output Complete Signal Conditioning Function 240 Vrms Field Wiring Protection Filtering Amplification 1500 Vrms CMV Isolation High Noise Rejection RFI EMI immunity and Wide Range Zero Suppression High Accuracy 0 05 Low Drift 1 25 C to 85 C Rated Temperature Range Mix and Match Module Capability No Potentiometer Adjustments Custom Ranges Available Module Description The 5B Series modules were designed for harsh industrial environments with modules hard potted for durability They incorporate a circuit design utilizing transformer based isolation and automated surface mount manufactur ing technology which yields devices that are small low cost and highly reliable mod les operate from a single 5 V supply Performance The 5B Series provides excellent signal conditioning performance Each unit is laser trimmed for high cali brated accuracy Typical calibrated accuracy is com prised of 0 05 span 10 uV RTI 0 05 Vz Vz the input voltage that results in a 0 V output Refer to the specific module data page for more detailed information Chopper stabilized amplification provides low drift and outstan
20. and terminal blocks 1 17 on the 5802 Input terminal 2 Screw terminal connections are indicated in Figure 3 11 OUT HI terminal 3 the input screw terminals the figure are numbered 1 2 3 and 4 to correspond to markings each backplane 14 22 AWG wire may be used with these terminal blocks 3 9 1363 RACKMOUNT 5B SERIES BACKPLANE OPTIONAL INTERFACE RDS Figure 3 14 Rack Mount Assembly Drawing MOUNTING TRACK 0 145 3 68 MAX LUG ACCESS 1324 ASSEMBLY NO 2 56 TERMINAL SCREW Figure 3 15 AC1324 Diagram dimensions in inches and mm NOTE Mounting rack is not provided with AC1324 installation and 185 F for rated performance If the equipment will The 5B Series Signal Conditioning Subsystem is designed be used a harsh or unfavorable environment it may be for installation in any convenient location suitable for necessary to install it inside a protective enclosure It is general purpose electronic equipment Operating ambient recommended that the backplane be mounted and wired temperature should be between 25 C and 85 13 F before the modules are installed 3 10 10 1 95 Each 5B Series 16 channel backplane has seven standoffs one at each corner and three along the centerline and is supplied with seven 3 mm screws for mounting purposes Figure 3 10 is a diagram of the mounting dimensions for these backplanes A drill template is included in Appendix B The AC
21. be a 0 25 W carbon composition 20 tolerance is suitable protection circuit assures safe operation even if a 240 Vrms power line is connected to the input screw terminals A three pole filter with a 4 Hz cutoff provides 60 dB of normal mode rejection and CMR enhancement at 60 Hz One pole of this filter is located at the module input while the other two poles are in the output stage for optimum noise performance chopper stabilized input amplifier provides all of the module s gain and assures low drift This amplifier operates on the input signal after subtraction of a stable laser trimmed voltage which sets the zero scale input value It is therefore possible to suppress a zero scale input that is many times the total span to provide precise expanded scale measurements Signal isolation is provided by transformer coupling using proprietary modulation technique for linear stable performance A demodulator on the output side of the signal transformer recovers the original signal which is then filtered and buffered to provide a clean low impedance output A series output switch is included to eliminate the need for external multiplexing in many applications This switch has a low output resistance and is controlled by an active low enable input In cases 5B37 Ordering Information 2 2 10 Input Range 100 C to 1350 C 1482 to 2462 F 100 C to 400 148
22. destroy installed modules the 5B08 5B08 MUX incorporate polarity reversal protection in the form of a shunt diode A 4 ampere socketed fuse will open by the diode current if the supply is reversed If the fuse is open replacement with the proper type Littelfuse Type 252 004 is essential REV A 5 08 5 08 GROUND STUDS The 5B Series modules meet transient voltage protection stan dard ANSI TEEE C37 90 1 1989 The 5B Series modules can prevent damage to the connected system even when a very large fast transient strikes all eight field I O lines at the same time However proper grounding of the backplane is essential to ensure full protection since in such cases currents on the order of an ampere with rise times on the order of one microsecond must be delivered to ground Both the resistance and the inductance of the ground path are critical In applications where hazards of this magnitude exist the large 10 32 ground stud provided at each end of the 5808 back plane at one end of the 5B08 MUX backplane should be connected to system ground by the shortest practical length of large diameter wire The surge withstand capability can be tested with not less than fifty 2 5 kV bursts per second A test duration of two seconds is widely accepted A rise time of 20 is specified and each module could see a surge current on the order of 1 ampere When a safety ground is used the connection of backplane measureme
23. input signal after subtraction of a stable laser trimmed voltage which sets the zero scale input value for the 4 20 mA range The laser trim process also be used to customize units to meet special require ments Signal isolation is provided by transformer coupling using a proprietary modulation technique for linear stable performance A demodulator on the output side of the signal transformer recovers the original signal which is then filtered and buffered to provide a clean low impedance output A series output switch is included to eliminate the need for external multiplexing in many applications This switch has a low output resistance and is controlled by an active low enable input In cases where the output switch is not used the enable input Should be grounded to power common to turn on the switch as it is on the 5BO1 backplane 5B32 Ordering Information Input Range Output Range Model 0to 45 V 5B32 01 010 5 5 32 02 DIFF SIGNAL AMP ISOLATION ISOLA TIO 17 2 LATION lt osc 16 pwr INTERNALLY COMMITTED RESERVED FOR CJC SENSOR CONNECTION Figure 2 3 5B32 Functional Block Diagram The single 5 V supply powers a clock oscillator which drives power transformers for the input and output circuits The input circuit is of course fully floating In addition the output section acts as a third floating port eliminating many problem
24. module is included in Chapter 2 page 2 20 CAB 01 The CAB 01 is 26 pin cable with 3 connectors used to daisy chain 5 02 backplanes The number of CAB 01 cables needed is equal to the number of 5 02 backplanes to be connected together minus one maximum of four 5800 backplanes can be chained together requiring three 01 cables and one AC1315 cable or similar cable to connect to an interface board or control system 955 The 955 is a chassis mounted 1 A 5 V power supply See Table 3 2 in order to determine the power require ments for each system Drill Template Figure B 1 is a drill template for mounting a 5 01 5802 backplane B 1 5B02 Jumper Configurations 5 02 backplane was designed to address multiple backplane configurations with a minimum of external circuitry This is accomplished by implementing analog input and output buses and taking advantage of output enable and track and hold circuits built into the modules Using the address and control lines on the 5 02 up to 64 analog input output channels can be accessed The following tables describe the jumper configurations required on the 5B02 backplanes for one two three or four 5 02 combinations 5 02 Logic Table Single Board Application In this appliction the jumpers on the board should be in positions 1 and 6 other jumpers should be left open In the single board application R4
25. o tee bt pee better IE RH EI UP ke iran 2 3 Address Selection Jumpers 2 18 eee eee entren 3 6 Module Power Requirements eere eene estet bnete entente tene tee teen thee en 3 8 AC1361 Electrical Specifications eese ient teinte tnra rnnontntant 4 3 June 98 5B Series New Product Information Data Sheets for the following New 5B Series products are attached 5 08 5 08 8 Channel Backplanes 2 5835 4 Wire RTD input module 5B36 Potentiometer Resistor input module 5842 4 to 20 mA Process Current input module Visit our new ANALOG DEVICES IOS Website http www analog com IOS for The Latest Data Sheets Technical Support including answers to Frequently Asked Questions Alternate Source Product Cross Reference Sales Offices Addresses Phone F ax New 3 Year Warranty Statement and More ANALOG 5B Series DEVICES 2222 8 Channel Backplanes 5B08 5B08 MUX FEATURES 8 Channel industry Standard 5B Series Compatibility Two Backpiane Selections 5B08 Eight Independent I O Channels 5B08 MUX Eight I O Channels Multiplexed onto One Bus Mix and Match 5B Series 1 0 Module Capability Thermocouple RTD mV V Frequency mA Strain Gage Loop Powered mA Potentiometer Slidewire 25 to 85 Temperature Range 1500 V rms Chan Chan and Input Output Isolation FM Approved Approved for Use in Class
26. of the 5B34 Excitation for the RTD is provided by a current source with an identical current taken through the third RTD lead in such a way as to cancel the effects of equal lead resistances The second current also flows in Rz which is laser trimmed to the value of the RTD at the temperature that is to result in a module output of zero volts Thus the input seen by the differential amplifier will be zero at that scale point Since both current sources are connected to input screw terminals they are protected against acci dental application of voltages up to 240 Vrms A pair of protection networks serves the same function for the amplifier and input filtering is provided at the same points The differential amplifier is a chopper stabilized design featuring exceptionally low drift This makes possible the use of very low RTD excitation currents to minimize self heating without incurring any loss of accuracy A feedback linearizer is laser trimmed along with the module s gain and zero settings The laser trim process can also be used to customize units to meet special requirements Signal isolation is provided by transformer coupling using a proprietary modulation technique for linear stable performance A demodulator on the output side of the signal transformer recovers the original signal which is then filtered and buffered to provide a clean low impedance output A series output switch is included to eliminate the need for
27. the user may complete the bridge to the half or full bridge level external to the module and use the 5B38 module Note A current path must exist between power common and output common for proper operation of the demodulator and output switch See Chapter 4 for details In EIE Range and Excitation Output Range Model Full Bridge 10 0 V excitation 3 mV V Sensitivity 300 Q to 1OkO 5 to 5 5B38 02 Half Bridge 10 0 V excitation 3 mV V Sensitivity 300 2 to 10 5Vto45 V 5B38 04 Bridge 10 0 V excitation 2 mV V Sensitivity 300 Q to 10 kQ 5 5 V 5838 05 2 12 12 1 91 5838 Specifications typical 25 and 5 V Power Full Bridge Half 3838 02 5838 05 210 20 mV 2 mV V Sensitivity __ 00 span 008 Span ET RTT Stability vs Ambient Temperature Input Offset Output Offset 40 325 ppm of reading C Excitation Voltage 15 ppm C Half Bridge N A 15 ppm C Input Resistance Normal Power Off Overload Noise Input bandwidth 10 Hz 0 4 Vrms RTI 2 RTI Input bandwidth 10 kHz 70 nV VHz RTI 250 nV VHz RTI Output bandwidth 100 kHz 10 mV p p RTO 548 Rise Time 10 1090 Span Setting Time 01 Input to Output Continuous 1500 Vrms max Transient meets IEEE STD
28. 06 ARE CJC TEMPERATURE SENSORS 1961 NOTES 2 o i 222 32222 3 11 54 5 s SLT g 352 3835 58 4 lt 5 6 5 08 Schematic Diagram REV A ES 5808 5808 2 AND 4 Cug WIRE WIRE iw twine 3 WIRE POTENTIOMETER SLIDEWIRE MODEL 5836 MODEL 5836 MODEL 5842 MODEL 5835 Figure 7 Field Input Connections OUTLINE DIMENSIONS Dimensions shown in inches and mm 254 0 0 15 3 90 99 1 5B08 MUX 55555553 52522443 le 0 75 19 1 0 14 3 6 0 8 REV A ANALOG DEVICES FEATURES Accepts a Variety of RTD Types 100 Platinum 10 Copper 120 Q Nickel RTD Signal 1500 V rms Input Output and input Power Isolation 250 V rms Output Power Isolation 240 V rms Field Wiring Protection 4 Wire Lead Resistance Compensation 190 dB CMRR 116 dB NMR 60 Hz 108 dB amp 50 Hz Low Drift Input Offset 0 01 C C Gain 30 ppm C Low Output Noise 0 3 mV p p 100 kHz BW 6 mV 5 MHz BW Low Power Consumption 5 V dc 15 mA ANSI IEEE C37 90 1 1989 Transient Protection CSA FM and CE Approvals GENERAL DESCRIPTION Model 5B35 converts the input from a wide variety of RTD types to a linearized high accuracy output of 0 V to 5 V The module provides transformer is
29. 1363 is a single piece metal chassis for mounting 5801 5802 backplane in a 19 rack It has seven 3 mm threaded inserts for mounting a 5 01 or 5 02 six additional threaded inserts to allow mounting of an adaptor board on the back of the rack mount kit and holes that allow a 955 or 976 power supply to be mounted on the back of the rack Screws are also included The backplane fits readily in the rack by sliding it in from the side under the end flanges The AC1363 weighs 1 70 Ib 775 g Figure 3 13 is a diagram of the AC1363 rack mount kit and Figure 3 14 is a rack mount assembly drawing interface Accessories A number of accessories are available which complete the 5B Series Signal Conditioning Subsystem solution by providing an interface to a host system The AC1315 isa 2 60 26 pin cable with two connectors that can be connected to either the 5 01 or the 5 02 backplane The 01 is a 26 pin cable with three connectors for daisy chaining 5802 backplanes The number of CAB 01 cables needed is equal to the total number of 5B02 backplanes minus one The 1324 accepts the AC1315 or CAB 01 from a 5B Series backplane and provides 26 screw terminals for interconnecting to any analog subsystem This interface board might be used with programmable controllers for example and is diagrammed in Figure 3 15 It can be mounted in snap track if desired or may be mounted to the AC1363 Rack Mount Kit Standof
30. 472 SWC 50 60 Hz 100 4 1 kQ in Either or Both Input Leads Input Protection Continuous 240 Vrms max continuous Voltage Output Protection Continuous Short to Ground 50 Output Selection Input Logic 0 Min Logic 1 Max Logic 1 Input Current 0 0 4 mA x Power Supply Sensitivity 25 ppm reading 2 5 1 W fll load 6 W no load 22 x22 x08 GimmxSImmxi mm Environmental Temperature Range Rated Performance 259 to 85 Temperature Range Storage 40 to 85 Temperature Range Operating 40 to 85 C Relative Humidity MIL 202 RFI Susceptibility 0 to 95 60 C noncondensing 0 5 span error 400 MHz 5W 3 Includes the combined effects of gain offset and excitation errors repeatability hysteresis and nonlinearity full load 300 Q Same as full bridge versions Specifications subject to change without notice 10 1 95 2 13 5839 Current Output Module The 5B39 current output module accepts a high level analog signal at its input and provides a galvanically isolated 4 20 mA or 0 20 mA process current signal at its output The module features high accuracy of 0 05 0 02 nonlinearity and 1500 Vrms common mode voltage isolation protection Figure 2 7 is a functional block diagram of th
31. 90 Span Noise Input 0 1 Hz to 10 Hz Output 100 kHz Protection Current Limit Enable Time C Load 0 pF to 2000 pF Enable Control Max Logic 0 Min Logic 1 Max Logic 1 Input Current 0 1 POWER SUPPLY Voltage Rated Performance Current Transmiter Load of 20 mA Transmitter Load of 4 mA Sensitivi CASE SIZE Maximum WEIGHT ENVIRONMENTAL Temperature Range Rated Performance Storage Temperature Relative Humidity RFI Susceptibili NOTES 5B42 4 mA to 20 mA See Table I 0 mA to 20 mA See Table IT 250 20 V 04 mA to 20 mA 90 dB Per Decade Above 100 Hz 240 V rms max ANSUIEEE C37 90 1 1989 1500 V rms max 1500 V rms max 250 V rms max 140 dB 0 05 Span 4 pA 0 0196 Span 0 5 5 25 ppm of Reading C 1 5 2 10V 250 100 Hz 4ms 10 nA rms 200 uV pk pk Continuous Short to Ground 20 mA 6 us to 1 mV of Vour 408 V 2 4 36 0 5 5 V dc 596 200 mA 100 mA 1 RTE 2 275 2 325 0 595 57 8 mm x 59 1 mm x 15 1 mm 70 grams 40 to 85 40 C to 85 096 to 93 40 C Noncondensing 0 5 Span Error 400 MHz 5 3 precision 25 Q current sense input resistor is internal to 5B42 The user s board layout must separate Power Ground from Common and when the 5842 output switch is not used ground the enable input to Common Power to Output is not ava
32. A 2 2 275 x 2 325 0 595 57 8 mm x 59 1 mm x 15 1 mm 70 grams 40 to 85 40 to 85 Input Range 5B36 01 00101000 OVto45V 5B36 02 00105000 0 45 5836 03 0910 0 1 5 5 36 04 Custom inpuvoutput ranges are available See Table II 0019010 OVto 5V Table II Custom Model Ordering Guide Order Model 5B36 CUSTOM Plus Customer Specified Information Input Range Zero Suppression Low specify Minimum 09 Maximum 1500 High specify Minimum 25 Zero Suppression Maximum 10 Zero Suppression Output Range Low fixed 0v High specify 5 V max Examples Smallest Input Range with No Zero Suppression Specify 0 to 25 Q Input Range Smallest Input Range with Highest Zero Suppression Specify 150 to 175 Q Input Range Largest Input Range with No Zero Suppression Specify 0 10 Input Range Largest Input Range with Highest Zero Suppression Specify 150 Q to 10 150 Input Range 0 to 93 40 Noncondensing X 0 576 Span Error 400 MHz 5 W 3 user s board layout must separate Power Ground from Common and when the 5836 output switch is not used ground the enable input to I O Common Power to Output CMV is not available when the 5B36 is installed on a 5B Series backplane Includes the combined effects of repeatability hysteresis and nonlinearity Referenced to input Specif
33. ITE ENB 0 21 22 RESERVED 23 24 N C o o o o o o 9 25 26 D IS THE ANALOG OUTPUT OF INPUT MODULES Veere 19 THE ANALOG INPUT OF OUTPUT MODULES MATING CONNECTOR AMP PN746290 6 OR EQUIVALENT Figure 3 5 5B02 System Connector Pinout One signal path is provided for inputs and one for outputs Input and output modules are independently addressed by two sets of six address pins and an enable pin In addi tion a number of grounded pins are present in the connector pinout to provide shield conductors in the ribbon cable In some cases discussed below the ground conductors will not provide an accurate signal reference so a SENSE pin is also provided in the pinout Several jumper and component options in the backplane provide optimum ground connections for various circumstances 3 4 Grounding Each 5 02 backplane is factory configured with jumpers W1 W2 and W4 installed Jumper W1 grounds the shield wires in the ribbon cable pins 2 5 and 6 at the 5B02 backplane This will usually be the primary ground connection between the 5B02 and the measurement system This connection is required if output modules will be used on the backplane It is also required if there is no high impedance sense input input Lo of a differential or pseudo differential system available on the measurement system Jumper W2 connects t
34. K gt 5802 Logic Table Addition of Fourth Board The addition of the fourth board board D will utilize jumper positions 2 and 7 RD R5 A A o gt R4 4 4 A 2 4 8 gt lt R3 R2 oa et gt lt R1 5 gt lt RO READ WR 5 w4 w3 w2 wi CHANNEL NC 0 CHO D 1 CH1 D 0 CH2 D 1 CH3 D 0 CH4 D 1 CH5 D 0 CH6 D 1 CH7 D 0 CH8 0 1 CH9 D 0 CH10 D 1 CH11 D 0 CH12 D 1 CH13 D 0 CH14 D 1 CH15 0 24 0 2 24 0 34 4 o o x a 5 OO wo 2 0 gt WRITE CHANNEL N C N C CHO C CH1 C CH2 C CH3 C CH4 C CH5 C CH6 C CH7 C CH8 C CH9 C CH10 C CH11 C CH12 C CH13 C CH14 C CH15 C WRITE CHANNEL N C CHO D CH1 0 CH2 D CH3 D CH4 D CH5 D CH6 D CH7 D CH8 D CH9 D CH10 D CH11 D CH12 D CH13 D CH14 D CH15 D C 3 5B37 Transfer Function Calculating the Output Voltage
35. N LO The 5B Series modules can also prevent harm to the connected system when a very large fast transient strikes all field I O lines at the same time However proper grounding of your board is essential to get full protection since in some cases currents on the order of an ampere with rise times on the order of one microsecond must be diverted to ground Both the resistance and the induc tance of the ground path are critical On our 5B Series backplanes large ground studs are provided and when hazards of this magnitude exist are connected to ground by the shortest practical length of large diameter wire The surge withstand capability can be tested with not less than 50 2 5 kV bursts per second A test duration of 2 seconds is widely accepted A rise time of 20 kV ps is specified and each module could see a surge current on the order of 1 A When a safety ground is connected care must taken to insure measurement accuracy Refer to the grounding sections on the 5 01 or 5 02 backplanes in Chapter 3 for a discussion of provisions made in our 5B Series backplanes Safety Because leakage currents from high common mode voltages could reach the hold down screw the screw insert should preferably be grounded to power common or at least surrounded by guard rings on both sides of the printed circuit board It is good practice to put all track connected to the HI and LO field wiring terminals on the back of the board to prevent
36. ODULES NC z NO CONNECT Figure 4 5B08 MUX System Connector Pinout 5808 GROUND JUMPERS Model 5B08 MUX is supplied with three grounding jumpers W1 W2 W4 These three jumpers are installed at the factory but can be changed to accommodate user system configuration needs Jumper W1 connects the P1 shield pins Pins 2 5 and 6 to the 5B08 MUX backplane common backplane measurement ground This will usually be the primary ground connection between the 5B08 MUX backplane and the measurement system This connection is required if output modules are used on the 5B08 MUX It is also required if there is no high impedance sense input input LO of a differential or pseudo differential system available on the measurement system Jumper W2 connects the sense input from the measurement system if available on Pin 4 to the 5B08 MUX backplane common so it can be read directly W2 can be left in place at all times Jumper W4 connects the 5B08 MUX backplane common to the 5 V power common A connection between power common and I O common is important for the 5B Series modules to function properly however if this connection is made elsewhere in your system the best place is usually near the A D or D A converters W4 should be cut since a ground loop could result REV A 222 BB08 5B08 MUX 5B08 MUX ADDRESS JUMPERS 5B08 MUX backplane can hold eight 5B Series modules in any combination of inputs or outputs Address decode
37. R5 W4 and W5 should be tied high or low it s best not to let them float Also note that N C means NO CHANNEL SELECTED and X means DON T CARE RD R5 84 83 82 Ri RO READ w5 W4 w2 Wi WO WRITE 1 X X X X NE 1 X X X X X X 0 X X 0 0 0 0 0 X X 0 0 0 0 CHO 0 X X 0 0 0 1 CH 0 X X 0 0 0 1 CH1 0 X X 0 0 1 0 0 x X 0 0 0 0 X X 0 0 1 1 0 X X 0 0 4 1 0 X X 0 1 0 0 CH 0 X X 0 4 0 CH 0 X X 0 1 0 1 CH5 0 X X 0 1 0 1 CH5 0 X X 0 1 1 0 0 X X 0 1 1 0 CH6 0 X X 0 1 1 1 CH7 0 X X 0 1 1 1 CH7 0 X X 1 0 0 0 X X 1 0 0 0 1 0 0 1 CH9 0 Xo X i 0 0 1 CH9 0 X X 1 0 1 0 0 X 1 0 1 0 CH10 0 Xo X 0 1 1 0 X X 1 0 1 1 0 X X 1 1 0 0 12 0 1 1 0 0 0 X X 4 1 0 1 0 X X 1 0 1 0 X 1 1 1 0 1 1 1 0 4 0 1 1 1 1 CHI5 0 X X 1 1 1 1 CH15 C 1 5802 Logic Table Dual Board Application In this appliction the first board will be called and the second board will be called Board A will have the jumpers in positions 5 and 10 Board B will have the jumpers in positions 4 and 9 RD EN R5 gt COO Oc Oc OO oO cC OO oO Oo ooo o oO oO o dc c o o oc cc QO oO o o o o o o gt lt R4 LA lA la cl Ht CO O O O gt lt gt lt
38. Since reversing the polarity of the connected 5 V power source could destroy installed modules the 5 02 incorpo rates polarity reversal protection in the form of a shunt diode A series fuse will be blown by the diode current if the supply is reversed If the fuse is blown replacement with the proper type Littelfuse type 252 004 is essen tial Channels Physical Size 3 5 x 17 4 x 3 2 with modules 88 9 mm x 442 mm x 81 3 mm Weight 11 25 oz 305 g Address Selection Inputs Max Logic 0 N A Min Logic 1 N A Max Logic 1 N A Power Supply 5 V dc 55 Power Consumption Specifications same as 5801 Specifications subject to change without notice 3 6 08V 2 0 V 70V 0 16 W 32 mA TYP 12 1 91 5803 and 5804 Backplanes 5803 backplane holds 5B Series module 5804 holds two modules These backplanes may be clustered for larger groups of modules Figures 3 8 and 3 9 are the wiring diagrams for the 5 03 and 5 04 CAUTION The 5 03 and 5 04 are not protected against reversed power supply connections A reversal may destroy the installed modules Jumper W1 connects 5 V power common to input output common backplane measurement ground connection between power common and input output is important for the 5B Series modules to function properly however if this connection is made elsewhere in your system the best place is us
39. Temperature Range Operating 40 C to 85 EM sei Temperature Range Storage 40 C to 85 noneplece ble Relative Humidity MIL 202 0 to 95 60 C noncondensing Specifications subject to change without notice RFI Susceptibility 0 5 span error 400 MHz 5 W 3 2 22 10 1 95 Chapter 3 9B Series Subsystem Solutions The 5B Series includes a number of backplanes which provide a complete signal conditioning solution The two 5B Series 16 channel backplanes currently available the 5 01 and 5 02 provide different system configuration options The 5B03 and 5 04 one and two channel backplanes allow an economical means to handle a few remote signals A single channel socket AC1360 is available for module evaluation It is discussed in Chapter 4 Both 16 channel 5B Series backplanes can be mounted in a 19 x 3 5 panel space The one and two channel backplanes are DIN rail compatible Each channel has four screw terminals for field connections These connections satisfy all transducer inputs and process current outputs and provide sensor excitation when necessary cold junction sensor is supplied on each channel to accommodate thermocouple modules backplanes require an external 5 V power supply This chapter describes the backplanes and how they are used Common topics power requirements field terminations installation and interface accessories follow the backplane discussions 5801 Backp
40. The 5B Series User s Manual Copyright 1987 Analog Devices Inc One Technology Way Box 9106 Norwood Massachusetts 02062 9106 All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form by any means electronic mechani cal photocopying recoding or otherwise without the prior written permission of Analog Devices Inc Printed in U S A Part 98 1323301 Revision Record Publication G1114 20 8 87 Revision 1 0 Released 8 87 Revision 2 0 Released 5 88 Revision 3 0 Released 2 90 Table of Contents Chapter 1 Introduction General DescHpIoN oda Renfe tbe ded E 1 1 SB Series Modules coscccsessocsssciessosveasohosonvsecseseosvssesttacatecanseosiecent 1 2 Chapter 2 Module Specifications Features D 2 1 Module Description 2 1 Performance 211 Evaluation and 2 1 2 1 Physical Characteristics 2 1 Modules asii 2 3 5B30 and 5831 and Voltage Input Modules 2 4 5B32 Current Input Module 2 6 5B34 RTD Input Poe dee e
41. a hazard when high common mode voltages are present Isolation The 5B Series modules provide 1500 Vrms CMV isolation The modules pinout sets an upper bound of 0 300 between input and output track assuming a metal screw insert grounded to system common Care should be taken in placing I O tracks to maintain this spacing between the input and output conductors Consult Figure 42 for an example of how the tracks are laid out on our 5 01 backplane so as to maintain this spacing You should also be aware that safety standards may place requirements on track spacings 12 1 91 Board design issues related to system side of the isolation barrier are discussed in this section Grounding A current path must exist between power common and output common input common and power common in output modules at some point for proper operation of the module This path can be resistive anything less than 10 is sufficient The connection does not need to be near the module distances up to 6 feet are acceptable Using the Input Modules Output Switch low resistance 50 series output switch active low in each input module can provide a self multiplexed output controlled by an enable input that is compatible with MOS and LSTTL levels Turning on a channel results in a settled output to a 1000 pf bus load equiva lent to roughly 30 modules in less than 5 microseconds If you do not wish to use the output switch present i
42. age at any temperature you may contact the Analog Devices Inc Technical Support Group and request a copy of the SENSORS software program This Windows software program provides a convenient reference to lookup tables of temperature sensing devices including thermocouples RTD s Platinum Nickel and Copper as well as thermistors Functions are imple mented in both directions i e temperature to mV and mV to temperature as well as in both and 0 0 0 0 68 783 20 878 18 504 47 502 10 5B Series User s Manual Important Information for use of the 5B Series Signal Conditioning Subsystems in RFVEMI fields The 5B Series Signal Conditioning Subsystem has been tested and passed the stringent heavy industrial requirements of the European Union s electromagnetic compatibility EMC directive The 5B Series modules have the CE Communit Europ enne mark on their label indicating their approval Only products that comply with these directives can have the CE mark affixed Only CE marked products can be sold in the EU starting on January 1 1996 In order to comply with the European Standards in a typical heavy indus trial application we recommend the following setup 1 2 The modules must be mounted a standard 5B backplane The 5B backplane must be mounted inside a standard metal cabinet which fully encloses the modules on all sides The cabinet must be earth g
43. an be daisy chained on the system I O ribbon cable for a total of 64 channels Jumpers on each backplane labeled SH1 5 and SH6 10 determine the block of 16 addresses assigned to each backplane Input read and output write addressing are completely independent in all cases jumpers 1 5 control inputs and 6 10 control outputs Independent addressing might be used for example to update output modules without interrupting the monitoring of input modules Backplanes are factory configured with jumpers at positions 1 and 6 Figure 3 7 shows the address jumpers in the factory configured positions This sets up the backplane as a standalone 16 channel system the two 5 01 and 5B02 Backplane Specifications Figure 3 7 Address Selection Pins Default Jumpers highest order address bits in the read and write addresses are ignored Moving the jumpers to any other position in the two blocks enables decoding of the full six address bits the exact position of the jumper determines address position for the backplane as shown in Table 3 1 To use multiple backplanes in this manner connect the corre sponding I O connector pins of each backplane in parallel 01 is a ribbon cable with three 26 pin connectors designed for this purpose Table 3 1 Address Selection Jumpers Input Output Address Jumper Jumper Range 2 7 48 6 8 32 47 16 31 10 0 15 3 4 5 Fusing and Polarity Reversal
44. assumes very high load resistance Does not include sensor or signal source error For Pt RTDs only other types may vary 150 mW GOmA 2 25 x 2 25 x 0 60 52 mm x 52 mm x 15 mm Environmental Temperature Range Rated Performance 25 C to 85 C output resistance to T ture Range ti 409 to 85 determine gain error when the module is Rance 40 C P Node driving a resistive load Note however that Relative Humidity MIL 202 0 to 95 60 loads heavier than 20 will also degrade nonlinearity and gain temperature coefficient noncondensing Specifications subject to change without notice 10 1 95 2 9 5837 Thermocouple Input Moduie The 5B37 thermocouple input module accepts input signals from types J K T E R S and B thermocouples and provides 0 to 5 V output Figure 2 5 is a func tional block diagram for the 5B37 Cold junction compensation circuitry corrects for the effects of the parasitic thermocouples formed by thermocouple wire connections to the input screw terminals The compensa tor provides an accuracy of 0 5 over the 5 to 45 ambient temperature range bias current supplied through resistor Roc gives a predictable upscale response to an open thermocouple Downscale open thermocouple detection can be provided by installing a 50 resistor across screw terminals 1 and 3 This resistor could
45. ated measurement and control system made with two identical SENSE 25 NC 26 pin connectors and P2 similar to 16 channel model 5 01 backplane Reference to these connectors is electrically identical and may be useful if a 5808 is used for both analog input and analog output and the data acquisition system has separate input or output connectors Figure 1 illustrates the pin assignments for P1 and P2 TOP ViEW Figure 1 5808 System Connector Pinout REV A Information furnished by Analog Devices is believed to be accurate and reliable However no responsibility is assumed by Analog Devices for its use nor for any infringements of patents or other rights of third parties Technology Way Box 9106 Norwood MA 02062 9106 U S A which may result from its use No license is granted by implication Tel 781 329 4700 World Wide Web Site http www analog com otherwise under any patent or patent rights of Analog Devices Fax 781 326 8703 Analog Devices 1998 9B08 5B08 MUX SPECIFICATI CHANNELS DIMENSION WITH 5B SERIES MODULES WEIGHT MOUNTING STANDOFFS COLD JUNCTION TEMPERATURE SENSORS Provided On Backplane Accuracy 25 C Over 5 C to 45 C SYSTEM CONNECTOR 26 Pin Male Mating ADDRESS SELECTION INPUTS Max Logic 0 Min Logic 1 Max Logic 1 POWER SUPPLY Voltage Operating Voltage Max Safe Limit With Modules Current Without Modules Fus
46. ation technique for linear stable performance A demodulator on the output side of the signal transformer recovers the original signal which is then filtered and buffered to provide a clean low impedance output A series output switch is included to eliminate the need for external multiplexing in many applications This switch has a low output resistance and is controlled by an active low enable input In cases where the output switch is not used the enable input should be grounded to power common to turn on the Switch as it is on the 5 01 backplane The single 5 V supply powers a clock oscillator which drives power transformers for the input and output circuits The input circuit is of course fully floating In addition the output section acts as a third floating port eliminating many problems that might be created by ground loops and supply noise The common mode range of the output circuit is limited however output common must be kept within 3 V of power common Note A current path must exist between power common and output common for proper operation of the demodulator and output switch See Chapter 4 for details 12 1 91 5830 and 5831 Specifications typical 25 and 5 V Power Input Span Limits 35 mV to 10 5 V 40 5 V to 10 V SVio3S Varus 33V 22122 Accuracy 40 0590 span 10 yV 0 05 span 10 2 mV RTI 0 05 Vzt RTI 0 05 Vzt 50028 span Stability vs Ambient Temperature
47. before it could affect the output circuit Use with Two Wire Transmitters The 5B Series can be used in a system to interface with two wire transmitters in either of two ways A configura tion with a current loop input from a loop powered transmitter 2 wire is illustrated in Figure 4 9 A configuration with a current loop input from a locally powered source or 3 4 wire transmitter is illustrated in Figure 4 10 JUMPER PROVIDED BETWEEN CHANNELS IN 5B01 ISOLATED OUTPUT MODULE COMMON Figure 4 8 Double Isolation Protection 4 6 12 1 91 24V SUPPLY 5B MODULE LOOP POWERED TRANSMITTER NOTE ANONISOLATED on CAN GROUND ITS OUTPU WITHOUT AFFECTING OPERATION Figure 4 9 Current Loop Input from Loop Powered Transmitter 2 Wire 24V SUPPLY LOCAL POWERED 4 20mA SOURCE OR3 OR 4 WIRE TRANSMITTER NOTE ANONISOLATED SOURCE CAN GROUND ITS OUTPUT 7 WITHOUT AFFECTING OPERATION Figure 4 10 Current Loop Input from Locally Powered Source or 3 4 Wire Transmitter 4 7 Appendix Accessories To ease the board design process and to complete the 5B Series subsystem solution the following accessories are available AC1315 The AC1315 is 2 60 cm 26 pin cable with 2 tors AC1324 The 1324 is a universal interface board with a 26 pin connector in and 26 screw terminals out A diagram of the 1324 is included in t
48. cuit Current Conversion Resistor The 5B32 current input module measures process current signals by reading the voltage developed across a preci sion 20 Q resistor This resistor is supplied in the form of a separate pluggable resistor carrier assembly since it can not be protected against destruction in the event of an inadvertent connection of the power line Extra current conversion resistors are available as accessories model number AC1362 If the power line is inadvertently connected across the high and low signal terminals large currents will flow causing the resistor to fuse internally To protect your board the tracks from signal high and low to the resistor should be wide 50 mil conductor widths in 1 or 2 ounce copper are appropriate The AC1362 is shown in Figure 4 6 Space must be provided for the AC1362 in any applications that might include current inputs Accommodation of this resistor carrier in a 5B Series backplane is illustrated in Figure 42 0 60 pe 15 3 MAX 0 230 5 8 0 200 5 1 Figure 4 6 AC1362 Outline 4 4 Protection The 5B Series modules can withstand application of 240 V to any combination of I O field terminations To protect your board from being harmed by such an Occurrence a 50 mil spacing should be maintained between conductors associated with the field wiring screw terminals For spacing purposes track from pins 1 and 2 of the AC1361 can be taken as equivalent to I
49. d reliable However no responsibility is assumed by Analog Devices for its use nor for any infringements of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under any patent or patent rights of Analog Devices 5B BACKPLANE HOPPER DIF AM SOLATION NC NO CONNECT at 50 Hz Output noise is an exceptionally low 0 3 mV p p at 100 KHz bandwidth and 6 mV p p at 5 MHz bandwidth input circuit is protected against accidental application of voltages such as an ac power line up to 240 V rms continuous A series output switch is included to eliminate the need for external multiplexing in many applications This switch has a low output resistance and is controlled by an active low enable input When the output switch is not used ground the enable input to I O common to turn on the switch One Technology Way P O Box 9106 Norwood MA 02062 9106 U S A Tel 781 329 4700 World Wide Web Site http www analog com Fax 781 326 8703 Analog Devices Inc 1997 MODEL 5B36 SPECIF ICATIONS 2 t and 5940 Table Standard Model Input Output Ranges Model INPUT Standard Ranges Custom Range Limits Impedance Normal Power On Power Off Overload Normal Mode Rejection NMR Protection Continuous Transient SENSOR EXCITATION CURRENT 1000 5000 1 Sensors 10 kQ Sensor LEAD RESISTANCE EFFECT 100 Q
50. der of 1 A When a safety ground is used the connection of back plane measurement ground to system measurement ground via the shield wires in the ribbon cable could result in a ground loop If the application involves only input modules and a sense input is used on the measure ment system W1 should be cut to prevent a ground loop Caution W1 is required if output modules are used or there is no high impedance sense input on the measure ment system In these cases the best defense against ground loop errors is to minimize the distance between the backplane and the associated system and to route any large currents carefully so as to minimize ground differ ences Fusing and Polarity Reversal Since reversing the polarity of the connected 5 V power Source could destroy installed modules the 5 01 incorpo rates polarity reversal protection in the form of a shunt diode A series fuse will be blown by the diode current if the supply is reversed If the fuse is blown replacement with the proper type Littelfuse type 252 004 is essen tial Interchannel Bridge Jumpers The 5 01 gives the user the capability of directing the voltage output of any input module to an adjacent output module by simply placing a jumper between pins of the two modules input to channel n output from channel nil This feature can be used to provide an isolated current output from an isolated input module giving two levels of 1500 Vrms isolation Model
51. ding long term stability without the need for potentiometer adjustments 1500 Vrms transformer isolation for the signal and power sections eliminates ground loops guards against transients prevents common mode voltage problems and ensures channel to channel isolation 160 dB common mode rejection 90 dB normal mode rejection and RFI EMI immunity maintain signal integrity E 9 S 9 8 5 8 1 Evaluation and Test A single channel socket AC1360 is available for module evaluation It is discussed in Chapter 4 Protection All field wired terminations including sensor inputs excitation circuitry and current outputs are protected against the inadvertent application of 240 Vrms line voltage The 5B Series modules have also been designed to meet the IEEE standard for transient voltage protection IEEE STD 472 SWC Physical Characteristics 5B Series modules are identical in pinout and size Figure 2 1 and they can therefore be mixed and matched on a backplane permitting users to address their exact needs The modules are hard potted typically weigh 2 25 ounces 64 grams and have sturdy 40 mil gold plated pins The module cases are made from a thermo plastic resin which has a fire retardent rating of 94 V O and is designed for use from 55 C to 85 The modules are secured in the backplane by means of a tapered screw also serving as a guide for insertion For ready identificati
52. e F1 TEMPERATURE RANGE Rated Performance Storage Relative Humidity Specifications same as Model 5 08 Specifications subject to change without notice Figure 2 5 08 Functional Block Diagram All trademarks are the property of their respective holders 5 08 3 5 10 0 3 2 88 9 mm x 254 0 mm x 81 3 mm 7 oz 200 g 8 Model 61 0 25 0 75 max 0 5 C 0 0125 746290 6 5 dci 5 6 0 V dc max 13 mA 4 Ampere Littelfuse Type 252 004 259 to 85 40 to 85 0 to 95 2 60 Noncondensing CHANNEL CHANNEL 1 5 typical 25 C and 5 V dc unless otherwise noted 5B08 MUX 10 8 2 0 V 47 0 V Figure 3 5B08 MUX Functional Block Diagram 202 5B08 5B08 MUX The I O connectors provide a signal path for each channel and in addition a number of grounding pins are available to provide interchannel shield conductors in the ribbon cable Iri some cases discussed below the ground conductors will not provide an accurate signal reference so a SENSE pin is also provided in the connectors Several jumper and component options on the 5B08 provide optimum ground connections for various applications 5B08 OUTPUT CHANNEL SELECTION To configure Model 5B08 I O for different system needs on board jumpers are provided A family of eight 3 pin jumpers J8 through 15 allow
53. e 1 10 mV 10 of F 5 0 7 mV 7 mV 5 4 5 70 2 25 2 25 x 0 6 40 C to 85 C 40 C to 85 C 0 to 93 40 C noncondensing 30 59 span error 400 MHz 5 W 3 Custom Input Ranges with zero supression available as model 5B45 custom and 5B46 custom Jumper selectable See Functional Block Diagram Warm up time 10 seconds Includes the combined effects of repeatability hysteresis and nonlinearity R gt 50 Q 4 5 V to 5 V Output Range available as custom ranged model 5B45 Custom or 5B46 Custom Bandwidth is specified for 2 pole Butterworth output filter _ Specifications subject to change without notice 10 1 95 2 19 5847 Linearized Thermocouple Input Module The 5B47 thermocouple input module accepts input signals from types J K T E R S and B thermocouples and provides a 0 to 5 V output The input signal is internally linearized to provide an output that is linear with temperature Figure 2 10 is a functional block diagram for the 5B47 Cold junction compensation circuitry corrects for the effects of the parasitic thermocouples formed by thermo couple wire connections to the input screw terminals The compensator provides an accuracy of 0 5 over the 5 to 45 C ambient temperature range A bias current supplied through resistor Roc gives a predictable upscale response to an open thermocouple Downscale open thermocouple det
54. e 5B39 current output module The voltage input usually from a digital to analog converter is buffered and a quarter scale offset is added if a 4 20 mA output is specified The signal is latched in a track and hold circuit This track and hold allows one DAC to serve numerous output channels The output droop rate is 80 5 which corresponds to a refresh interval of 25 ms for 0 0196 FS droop The track and hold is controlled by an active low enable input On power up the output of the 5B39 remains at 0 for approximately 100 ms allowing the user to initialize the track and hold In conventional applications where one DAC is used per channel and the track and hold is not used the enable input should be grounded to power common as it is on the 5 01 backplane This keeps the module in tracking mode The signal is sent through an isolation barrier to the current output V to I converter stage Signal isolation is provided by transformer coupling using a proprietary modulation technique for linear stable performance A demodulator on the output side of the signal transformer recovers the original signal which is then filtered and converted to a current output Output protection allows safe operation even in the event of a 240 Vrms power line being connected to the signal terminals 5B39 Ordering Information SIGNAL ISOLATION 1 rower sv _ ISOLATION wp pL PWR 216 05 Figure 2 7 5839 Functio
55. e Voltage Output to Input and Power Supply 1500 Vrms continuous Common Mode Rejection Normal Mode Output Protection Output Transient Protection Meets IEEE STD 472 SWC Sample amp Hold Output Droop Rate 80 pA s Acquisition Time 50 10 26 mA Bandwidth 3 dB 400 Hz Rise Time 10 to 90 Span 2 ms Track and Hold Enable Max Logic 0 1V Min Logic 1 25 Max Logic 1 36 V Input Current 0 1 5 SV ae 0 85 W 07014 Maximum Input Voltage Without 10 V to 10 V Size 2 25 2 25 0 60 52 mm 52 mm x 15 mm Environmental Temperature Range Rated Performance 25 C to 85 C Temperature Range Operating 40 to 85 C Temperature Range Storage 409 to 85 Relative Humidity MIL 202 0 to 95 60 noncondensing RFI Susceptibility 0 5 span error 400 MHz 5W 3 With a minimum power supply voltage of 4 95 V be up to 750 Includes the combined effects of repeatability hysteresis and nonlinearity Specifications subject to change without notice 2 15 5840 and 5841 Wide Bandwidth Millivolt and Voltage input Modules The 5B40 wide bandwidth millivolt input module accepts 55 to 500 millivolt input signals and provides either 5 V to 5 V or 0 to 5 V output The 5841 wide bandwidth voltage input module accepts 30 5 V to 10 V input signals and provides either 5 V to 5 V
56. e path resulting from a connection at another point so that W1 will result in a ground loop Virtually any contact between supply common and analog measurement common in the surrounding system is sufficient the two grounds can be Several volts apart and can have a resistance of up to 10 between them without affecting 5B Series module operation W1 should be cut if such a contact exists Jumper W2 is factory installed and only affects the operation of thermocouple input modules W2 connects the AC1361 temperature sensor in its normal manner when a thermocouple input module is installed in the module socket For applications involving connection of thermocouple wire to the HI and LO screw terminals this results in normal correction in the module for the thermal effects of the connections If however a 5B37 or 5B47 thermocouple module is to be operated without thermocouple wire at the screw terminals as for example in a test fixture using a millivolt source the temperature sensor must be disabled and a suitable voltage to simulate operation at a chosen terminal temperature must be substituted This is accom plished by opening jumper W2 and connecting a voltage Source to the terminals labeled CJC The required polarity of the applied voltage is indicated at the termi nals It is absolutely essential that the source of the voltage floats with respect to anything connected to the and LO input terminals or the EXC screw
57. e port isolation includes common mode voltage of 1500 V rms between input and output and between input and power 250 V rms between output and power Accurate performance is maintained over wide 40 C to 85 C operating temperature range The 5842 5 low drift design achieves an output offset drift of only 5 and gain drift of 25 ppm C The 5B42 offers significant advantages over signal condition ers that require an external current sense resistor An external resistor is not protected from accidental connection to ac line voltages and its error tolerance must be added to the conditioner s specified errors The 5842 is trimmed and specified including its internal 25 0 current sense input resistor The 5B42 signal input loop supply and the sense resistor are all protected against accidental appli cation of voltages such as an ac power line up to 240 V rms continuous There is no need to install an external resistor on the backplane but if one is installed it has no effect on the 5842 performance The module has a 3 dB bandwidth of 100 Hz an optimized 9 pole signal filter with low overshoot and exceptional output noise performance of 200 peak to peak at 100 kHz bandwidth 5B42 logic controlled series output switch eliminates the need for external multiplexing in many applications This low output resistance switch is controlled by an active low enable input When the output switch is not used ground t
58. ection can be provided by install ing a 50 resistor across screw terminals 1 and 3 This resistor could be 0 25 W carbon composition 20 tolerance is suitable protection circuit assures safe operation even if a 240 Vrms power line is connected to the input screw terminals A three pole filter with a 4 Hz cutoff provides 60 dB of normal mode rejection and CMR enhancement at 60 Hz One pole of this filter is located at the module input while the other two poles are in the output stage for optimum noise performance A chopper stabilized input amplifier provides all of the module s gain and assures low drift This amplifier operates on the input signal after subtraction of a stable laser trimmed voltage which sets the zero scale input value It is therefore possible to suppress a zero scale input that is many times the total span to provide precise expanded scale measurements Signal isolation is provided by transformer coupling using a proprietary modulation technique for linear stable performance A demodulator on the output side of the signal transformer recovers the original signal which is 5B47 Ordering Information 0 to 760 32 to 1400 F 100 to 300 C 148 F to 572 F 0 to 500 C 32 F to 932 F 0 to 1000 C 32 to 1832 F 0 to 500 C 32 to 932 F 100 C to 400 C 148 to 752 F 0 to 200 C 32 to 392 F to 1000 32 F to
59. es Model INPUT Standard Ranges Custom Range Limits 100 Q Pt 1200 Ni 10 Q Cu Impedance Normal Power On Power Off Overload Normal Mode Rejection NMR Protection Continuous Transient SENSOR EXCITATION CURRENT 100 Q Pt 120 Q Ni 10 Q Cu LEAD RESISTANCE EFFECT 100 Q Pt 120 Q Ni 10 Q Cu COMMON MODE VOLTAGE Input to Output Continuous Input to Power Continuous Power to Output Continuous COMMON MODE REJECTION CMR 50 60 Hz ACCURACY Initial 25 Conformity Error Stability vs Temperature 40 to 85 Input Offset Output Offset Gain OUTPUT Range Resistance Bandwidth Step Response Time 1096 to 9096 range Noise Input 0 1 Hz to 10 Hz Output 100 kHz Bandwidth Output 1 MHz Bandwidth Output 5 MHz Bandwidth Protection Current Limit Enable Time C Load 0 pF to 2000 pF Enable Control Max Logic 0 Min Logic 1 Max Logic 1 Input Current 0 41 POWER SUPPLY Voltage Rated Performance Current Sensitivity 100 Q Pt 120 Q Ni 10 Q Cu CASE SIZE Maximum WEIGHT ENVIRONMENTAL Temperature Range Rated Performance Storage Temperature Relative Humidity RFI Susceptibilit NOTES 5B35 See Table I See Table for More Information 200 to 850 C 80 C to 320 C 100 Q Platinum 0 00385 5835 01 100 C to 100 0 26 100 C to 260 148 F to 212 F 5835 02 0 C to 100 C 0 13 32 to 212 F 200
60. external multiplexing in many 5B34 Ordering Information CHOPPER SIGNAL DIFF ISOLATION Figure 2 4 5B34 Functional Block Diagram applications This switch has a low output resistance and is controlled by an active low enable input In cases where the output switch is not used the enable input should be grounded to power common to turn on the switch as it is on the 5 01 backplane The single 5 V supply powers a clock oscillator which drives power transformers for the input and output circuits The input circuit is of course fully floating In addition the output section acts as a third floating port eliminating many problems that might be created by ground loops and supply noise The common mode range of the output circuit is limited however output common must be kept within 3 V of power common Note A current path must exist between power common and output common for proper operation of the demodulator and output switch See Chapter 4 for details Input Range Output Range Model 100 Q Pt 0 00385 100 to 100 C 148 to 212 F 0to 5 V 5B34 01 0 to 100 32 F to 212 F 0to45 V 5B34 02 0 to 200 329 to 392 F 0 5 V 5B34 03 0 to 600 329 to 1112 0 5 V 5B34 04 10 Q Cu 0 to 120 C 10 9 0 32 to 248 F 0 5 V 5 34 01 0 to 120 C 10 9 25 C 32 to 2 8 0 5 5834 02 120 Q Ni 300 C 32 F
61. f one year fom gt to 21112 3 S 3 ug SOLE REMEDY WITH N LIEU OF ALL OTHER
62. fications 2 02 43 7 Power Requirements 3 8 Field Terminations 3 9 Insfallatiott iocis era t meii ara eR 3 10 Interface Accessories er Coil te ad suere oed 3 11 Chapter 4 System Design Considerations Physical Design Issues 4 1 Process ISSUES 4 3 Field Terminations sonuno anien etate 4 3 AC1361 Cold Junction Temperature Sensor 4 3 Current Conversion Resistor 4 4 pu NNNM 4 4 ria MEN ERE 4 4 Isolation etii ee 4 4 10 1 95 Table of Contents cont System Side 155065 2 See oer Mensa ona 4 5 ii 4 5 Using the Input Modules Output Switch eese terne 4 5 Effects of the Output Switch 2 4 444400 4 5 Using the Output Modules Track and Hold esent 4 5 Miscellaneous Topics 4 5 AC1360 Evaluation Socket 2 2 22222 4 2 24 22 4 4 4 4 5 Two Levels of Isolation Protection 4 6 Use with Two Wire Transmitters 4 6 Appendix ACCESSOTIES sscssssssssssssssesescssersssscessssecssecccessosssessoecsonssensnscesonsoesaesene
63. for optimum noise performance A chopper stabilized input amplifier provides all of the module s gain and assures low drift This amplifier operates on the input signal after subtraction of a stable laser trimmed voltage which sets the zero scale input value It is therefore possible to suppress a zero scale input that is many times the total span to provide precise expanded scale measurements 5B30 and 5B31 Ordering Information Input Range Output Range Model 10 mV to 10 mV 5 V to 5 V 5B30 01 50 mV to 50 mV 5 V to 5 V 5 30 02 100 mV to 100 mV 10 mV to 10 mV 5 5 V 5B30 03 0to45 V 5B30 04 50 mV to 50 mV 01045 V 5B30 05 100 mV to 100 mV 0to 5 V 5B30 06 1Vto 1V 5Vto 5V SB31 01 5 5 5 5 5831 02 10 0 5Vto 5V 5831 03 1Vto 1V 5831 04 5 V to 45 V 010 5 V 5831 05 10 V to 10 V 0to 45 V 5B31 06 NOTE The 04 05 and 06 ranges of models 5B30 and 5B31 map bipolar input ranges into unipolar output ranges 0 maps to 42 5 V CHOPPER DI SIGNAL AMP ISOLATION 20 mue 194 VO COM READ EN 0 POWER aor ISOLATION a 17 Lus es FILTER INTERNALLY COMMITTED RESERVED CJC SENSOR CONNECTION Figure 2 2 5B30 and 5B31 Functional Block Diagram Signal isolation is provided by transformer coupling using a proprietary modul
64. fs are included with the AC1324 and should be used if it is to be mounted on the back of the AC1363 The AC1366 is an interface board that will convert high level logic control signals into the TTL levels necessary for the 5 02 backplane An application requiring this board can occur with programmable controllers that may use up to 24 V logic 3 11 Chapter 4 System Design Considerations It is simple to incorporate the functionally complete 5B inputs and or process outputs very simple Figure 4 1 Series modules in your own circuit board or backplane shows the module outline and pinout Figure 4 2 shows a This chapter discusses some of the important considera single channel of a 5 01 backplane as an example of the tions in integrating the 5B Series into your design factors to consider in a design You may want to refer to Physical process side and system side design issues are this figure throughout this chapter _ presented in turn Miscellaneous topics are grouped at the end of the chapter The modules 40 mil pins fit into widely available sockets such as AMP Inc s 645502 1 and the modules are secured with self contained metric mounting screws and Physical ign I 3 mm inserts such as PEM s Penn Engineering and The 5B Series modules are identical in size and pinout Manufacturing Corp KFS2 M3 This makes designing a system with a variety of sensor 0 525 12 9 0 590 Ty esee 15 0 0 275 6 7 2 250 57 2
65. ground connec tion between the 5808 backplane and the measurement system This connection is required if output modules are used on the 5 08 It is also required if there is no high impedance sense input input LO of a differential or pseudo differential system available on the measurement system Jumper W3 connects the sense input if available on Pin 25 to the 5B08 I O common so it can be read directly W3 can be left in place at all times Jumper W4 connects the 5B08 common to the 5 V power common connection between power common and I O common is important for the 5B Series modules to function properly however if this connection is made elsewhere in your system the best place is usually near the A D or D A convert ers W4 should be cut since a ground loop could result 5B08 ADDITIONAL INFORMATION See the 5B08 5B08 MUX sections of this data sheet for additional information on Model 5B08 5B08 MUX DESCRIPTION 5B08 MUX incorporates input and output buses that take advantage of the internal series output switches in the 5B Series input modules as well as the track and hold circuit in the output modules Designers integrating the 5B08 MUX into a measure ment and control system do not need external multiplexers and can use a single digital to analog converter to serve numerous output channels Refer to Figure 3 for a functional block diagram and Figure 6 for a schematic diagram of model 5B08 MUX Digital outputs f
66. he Interface Accessories section of Chapter 3 page 3 11 AC1344 The AC1344 is a package of 10 jumpers for providing two levels of isolation protection on the 5 01 backplane or replacing the address selection jumpers on the 5B02 backplane AC1360 The AC1360 is a single channel evaluation and test socket with screw terminals and a cold junction sensor The operation of this socket is discussed in Chapter 4 page 4 5 A diagram is included AC1361 The AC1361 temperature sensor provides cold junction temperature measurement for thermocouple applications on user designed backplanes This sensor is described in detail in Chapter 4 page 4 3 They are provided on each channel of 5B Series backplane AC1362 Supplied with each 5B32 Current input Module the AC1362 is a replacement pluggable resistor 20 assembly AC1363 AC1363 is a single piece metal chassis for mounting 5B Series backplanes in 19 rack 10 1 95 AC1364 The AC1364 is this 5B Series User s Manual AC1365 AC1365 is a module case and mounting screw AC1366 The 1366 is an interface board used to convert high level control signals to the TTL logic levels used on the 5 02 backplane This board can be mounted on the backside of the metal chassis AC1363 AC1367 The AC1367 voltage switch input is a nonisolated unity gain module allowing a preconditioned signal to be connected into the 5B backplane A detailed discussion of this
67. he enable input to I O common to turn on the switch FUNCTIONAL BLOCK DIAGRAM 5B BACKPLANE PROTECTION REGULATED LOOP SUPPLY ISOLATED FIELDSIDE POWER ISOLATED INPUT SECTION REV 0 information furnished by Analog Devices is believed to be accurate and reliable However no responsibility is assumed by Analog Devices for its use nor for any infringements of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under any patent or patent rights of Analog Devices ISOLATED OUTPUT SECTION One Technology Way P O Box 9106 Norwood MA 02082 9106 U S A Tel 781 329 4700 World Wide Web Site http www analog com Fax 781 326 8703 Analog Devices Inc 1997 MODEL 5B42 SPECIFICATIONS anav 5 Vd Table I Standard Model Input Output Ranges Model INPUT Standard Ranges Custom Range Limits Input Resistor Loop Supply Voltage Normal Mode Rejection NMR 3 dB 100 Hz Input Excitation Sense Resistor Protection Continuous Transient COMMON MODE VOLTAGE Input to Output Continuous Input to Power Continuous Power to Output Continuous COMMON MODE REJECTION CMR 50 Hz 60 Hz ACCURACY Initial 25 Nonlinearity Stability vs Temperature 409 to Input Offset Output Offset Cain OUTPUT Range See Tables and II 5B42 01 5B42 02 Resistance Bandwidth 3 dB Step Response Time
68. he sense input if available to pin 25 so that the 5B02 s ground is read It can be left in place at all times Jumper W4 connects 45 V power common to input output common backplane measurement ground A connection between power common and input output common is important for the 5B Series modules to function properly however if this connection is made elsewhere in your System the best place is usually near the A D or D A converters W4 should be cut since a ground loop could result The 5B Series modules can prevent harm to the connected System even when a very large fast transient strikes all 16 field I O lines at the same time However proper grounding of the backplane is essential to get full protec tion since in such cases currents on the order of an ampere with rise times on the order of one microsecond must be diverted to ground Both the resistance and the inductance of the ground path are critical In applications where hazards of this magnitude exist the large 10 32 ground stud provided at one end of the 5 02 backplane should be connected to system ground by the shortest practical length of large diameter wire 10 1 95 DEIN AOS HOLGIG3HIE A L NOIL Y SI S SAOSNAS sav AN N 4 19 Q 1 13NNYH2 iH 1 13NNVH2 13NNVHO 9i 5 5 5 GN 200909 8 vie v3 V 8
69. his module is Input Oto 5 V or 5 V to 5 V Output 4 20 mA or 0 20 mA Voltage Switch Input Module Conditioned signals can be brought into the 5B backplane with the AC1367 Voltage Switch Input Module This is a nonisolated zero gain module incorporating a selectable output Switch Table 2 1 5B Series Input Modules 5B30 5B31 5 32 5834 5837 5838 5840 5841 5845 5846 5847 Isolated mV Input Isolated Linearized Thermocouple Input Type J K T S or 0 to 5 V or 5 V to 5 V The 5B34 RTD input module provides 3 wire lead resistance compensation and can be connected to 2 3 or 4 wire RTDs 10 1 95 5830 and 5831 Millivolt and Voltage Input Modules The 5830 millivolt input module accepts 5 to 500 millivolt input signals and provides either a 5 V to 5 V or 0 to 5 V output The 5B31 voltage input module accepts 0 5 V to 10 V input signals and provides either a 5 V to 5 V or 0 to 5 V output Figure 2 2 is a functional block diagram for the 5B30 and 5B31 A protection circuit assures safe operation even if a 240 Vrms power line is connected to the input screw terminals and in the 5B31 the input signal is attenuated by a factor of 20 at this point A three pole filter with a 4 Hz cutoff provides 60 dB of normal mode rejection and CMR enhancement at 60 Hz One pole of this filter is located at the module input while the other two poles are in the output stage
70. ications subject to change without notice 2 REV ANALOG DEVICES FEATURES Accepts 4 to 20 mA Process Current Input Signal Provides isolation and Regulated 20 V DC Loop Power for Nonisolated 2 Wire Transmitters 1 V to 5 V or 2 V to 10 V Output 1500 V rms Input Output and Input Power Isolation 250 V rms Output Power Isolation 140 dB Common Mode Rejection 100 Hz Signal Bandwidth Accuracy 0 05 Linearity 0 01 240 V rms Field Wiring Protection Protected Internal Current Sense Resistor ANSI IEEE C37 90 1 1989 Transient Protection CSA FM and CE Approvals GENERAL DESCRIPTION 5B42 interfaces with 2 wire transmitters to convert their 4 to 20 mA process current signal into a high accuracy output of 1 V to 5 V or 2 V to 10 V The module provides 1500 V isolation with 140 dB CMR 20 V regulated loop power at a 4 to 20 mA loop current signal filtering and input protection against accidental line voltage connection The industry standard 5B Series encapsulated plug in modular package is compatible with all 5B backplanes Modules are powered by 5 590 Signal isolation is provided by transformer coupling using a propri etary technique for linear stable performance A demodulator on the output side of the signal transformer recovers the input signal which is filtered and buffered to provide an accurate low impedance low noise output Process Current Input Module MODEL 5B42 True thre
71. ign considerations are grouped in this Section AC1360 Evaluation Socket The 1360 is a test or evaluation socket for 5B Series modules Screw terminals are provided for all of the module s input output control and power connections In addition an AC1361 cold junction temperature sensor is installed for thermocouple applications and a pair of Sockets permits installation of the AC1362 current sensing resistor used with the 5B32 current input module The 1360 is DIN rail compatible using Phoenix Universal Module UM elements To mount a single 1360 would require the following Phoenix parts Model Description Qty UM BEFE Base Element with Snap Foot UM VS The snap foot elements will fit DIN EN 50022 D 50035 and DIN EN 50045 rails 2 Standoffs are included with each AC1360 for bench top use or wall mounting Configuration Options The AC1360 shown in Figure 4 7 includes only two 285 24 CONTROL LOCAL 5V ISOLATED 000200 EXC LO Q Figure 4 7 AC1360 4 5 The first labeled W1 provides convenient point for providing the required current return path from I O common on the nonisolated system side of the modules to the 5 V supply common In general this is not the best place to have such a connection In most applica tions there will already be a suitabl
72. ignal Vin 5 V p p Large Signal Vin gt 5 V p p Power Off Bias Current Vin 5 V p p COMMON MODE VOLTAGE CMV Input to Output Continuous Transient See Ordering Guide See Ordering Guide 500 Hz min 20 kHz max 20 kHz min 275 kHz max 20 of span 5 70 mV rms min 240 V rms max Sine Square Triangle Pulse Train 2 min 240 V rms max continuous 0 14 0 8 2 0 25 mV 400 mV 5MQ 40k Q 330 pF 40k Q 330 pF 100 pA 1500 V mns min Meets IEEE STD 472 SWC COMMON MODE REJECTION CMR 1 source imbalance 50 60 Hz ACCURACY Initial 25 C Nonlinearity Gain vs Temperature 409 to 85 C Offset vs Temperature 40 C to 85 C OUTPUT Range RL gt 50k Qy vs Supply Voltage Resistance Protection Enable Time C load 0 to 2000 pF Enable Control Max Logic 0 Min Logic 1 Max Logic 1 Input Currrent 0 Bandwidth 3 dB Step Response Time Ripple Noise 100 kHz Bandwidth 5 MHz Bandwidth POWER SUPPLY Voltage Rated Performance Current CASE SIZE ENVIRONMENTAL Temperature Range Rated Performance Storage Relative Humidity RFI Susceptability Specifications same as 5B45 0 05 span 40 196 span max 0 005 span 0 015 span max 20 ppm C 20 5 to 5V 0to 5 V 0 005 of Span Vs 500 Continuous Short to Ground 6 usec 1 0V 2 5 190 2 See Table 1 See Tabl
73. ilable when 5B42 is installed on a 5B Series backplane The use of shielded cable from the signal source to 5842 inputs is recommended to maintain CMR performance Includes the combined effects of repeatability hysteresis and nonlinearity 5Referenced to Input Specifications subject to change without notice 4mA to 20 mA Vto 5V 4mAto20mA 2 Vto l0V Custom input output ranges are available See Table II Table II Custom Model Ordering Guide Order Model 5B42 CUSTOM plus Customer Specified Information Customer Specified Information Input Range Output Range Low High Available Range Limit Limit 0 mA to 20 mA 0 10V is no loop power supplied by the 5B42 at 0 mA input REV 0 Chapter 1 Introduction This manual serves as a guide to both designers of systems using 5B Series Modular Signal Conditioners and to users of a 5B Series Signal Conditioning Subsystem solution Module functions and specifications are described in Chapter 2 The proper configuration and operation of the 5B Series Subsystem are discussed in Chapter 3 and system design issues are addressed in Chapter 4 Appendixes are devoted to available accessories drill templates and product notes General Description The 5B Series modules are low cost high performance plug in signal conditioners Designed for industrial applications these modules incorporate a circuit design utilizing transformer based i
74. inuous Short to Ground Bre SEAT 9 For nickel Ni RTD sensor inputs order 6 us to 1 mV of Vour 5B35 N CUSTOM 0 8 V 2 4 V 100 V 0 5 pA 5 V dc 5 15 mA 0 2 2 275 2 325 0 595 096 to 93 40 Noncondensing 0 5 Span Error 400 MHz 5 W 3 V ne user s board layout must separate Power Ground from Common and when the 5835 output switch is not used ground the enable input to YO Common Power to Output is not available when the 5835 is installed on a 5 B Series backplanc 2CMR for Model 5B35 04 is 180 dB 3Includes the combined effects of repeatability hysteresis and conformity Specifications subject to change without notice 225 REV 0 ANALOG DEVICES Potentiometer Input Module MODEL 5B36 FUNCTIONAL BLOCK DIAGRAM FEATURES Accepts Potentiometers up to 10 000 0 High Level 0 V to 5 V Output 1500 V rms Input Output and Input Power Isolation 250 V rms Output Power Isolation 240 V rms Field Wiring Protection 170 dB CMRR 116 dB NMR 60 Hz 108 dB 50 Hz Low Gain Drift 30 ppm C Low Output Noise 0 3 mV 100 kHz BW 6 mV p p 5 MHz BW Low Power Consumption 45 V dc 15 mA ANSI IEEE C37 90 1 1989 Transient Protection CSA FM and CE Approvals GENERAL DESCRIPTION Model 5B36 converts the input from a variety of potentiometers and variable resistors to a high level output of 0 V to 5 V The module provides transformer isolation potentiometer excitation
75. isolation calibrated accuracy of 10 0590 0 02 span nonlinearity and low drift of 1 5B Series input modules listed in Table 2 1 are selected to meet the requirements of each application The transfer function provided by each module is Input Output specified sensor measurement range 0 0 5 V or 5 V to45 V Input modules are available to accept millivolt volt process current thermocouple RTD and strain gage inputs Each module is available in a number of standard ranges to meet most applications Special 5B Series input module ranges can be ordered from the factory A wide zero suppression capability allows any portion of the input signal to be mapped into the full output span permitting improved system resolution within a selected measurement range Output Module High Level Voltage Inputs 010 5 5 45V Process Current Output 4 20 mA 0 20 mA High Accuracy 10 0596 Reliable Transformer Isolation 1500 Vrms 90 dB Meets IEEE STD 472 Transient Protection SWC Output Protection 240 Vrms continuous internal Track and Hold Amplifier The 5B39 current output module accepts a high level analog signal at its input and provides a galvanically isolated 4 20 mA or 0 20 mA process current signal at its output The module features high accuracy of 0 05 0 02 nonlinearity and 1500 Vrms common mode voltage isolation protection The transfer function provided by t
76. isted in Table 1 1 Many standard configurations of each module are available and factory laser trimmed custom units can be supplied Wide zero suppression capability allows a user to map any portion of the input signal into the full output span permitting improved system resolution within a selected measurement range Existing conditioned signals can be connected into the 5B Series backplane through the AC1367 Switch Input Module Table 1 1 Available 5B Series Modules Module 5830 5831 5832 5834 Function Isolated mV Input Isolated V Input Isolated Current Input 5B37 J K T E R S B 5838 Full Bridge or Half Bridge 5B39 5B40 5B41 5B45 Isolated Frequency Input 0 to 10 kHz Input Isolated Frequency Input 0 to 250 kHz Input 5B46 5 47 J K T E S or B Isolated 2 3 or 4 Wire RTD Input 100 Q Pt 10 Q Cu or 120 Q Ni Isolated Thermocouple Input Isolated Strain Gage Input for Isolated Current Output 4 Isolated Wide Bandwidth mV Input Isolated Wide Bandwidth V Input Isolated Linearized Thermocouple Input 0to45 Vor 5 5 V 5 Vor 5 V to 5 V 5 V to 5 V 4 20 mA or 0 20 mA 0 to 5 V or 5 V to 5 V 0 to 5 V or 5 V to 5 V 5 Vor 5 5 V 0 to 5 V or 5 V to 5 V 5 V The 5834 RTD input module provides 3 wire lead resistance compensation and be connected to 2 3 or 4 wire RTDs 10 1 95
77. l 2 8 5B37 Thermocouple Input Module 2 10 5838 Strain Gage Input Module 2 12 5839 Current Output Module csecsssssssssssessssssesossecsssssucsazssssesaneesncenssecesese 2 14 5B40 and 5B41 Wide Bandwidth Millivolt and Voltage Input Modules 2 16 5845 and 5B46 Frequency Input Modules 2 18 5B47 Linearized Thermocouple Input Module 2 20 AC1367 Switch Input Module 2 22 Chapter 3 5B Series Subsystem Solutions 5B01 Backplane oic dear ra Rode a dd iii 3 1 Connector Pin 3 1 N 3 3 Fusing and Polarity Reversal sssssscssssssssssssssssssssesessnsesvsanecsessncenceaseressesess 3 3 Interchannel Bridge Jumpers EM M 3 3 5B02 BACK ANS 3 3 Connector Pin Usage a u irrito babeo c bep deerat 3 4 LEN TEE DECRE 277 Address Selection Jumpers ssssssscsssssssssssssssesssssssssssssssessvsassessvsesesssvesuessnsees 3 6 Fusing and Polarity Reversal 3 6 5 01 and 5802 Backplane Specifications 2 2 2 4044004 3 6 5803 and 5804 Backplanes 3 7 5 03 and 5804 Backplane Speci
78. lane The 5 01 diagrammed in Figure 3 1 is a 16 channel backplane that provides single ended high level analog input output pins on the system connector It is pin compatible with Analog Devices 3B Series applications Note however that 5B Series modules provide a 5 V output swing rather than the 10 V swing provided by Series modules Figure 3 2 is a schematic of the 5 01 backplane Connector Pin Usage Signal connections between the 5 01 backplane and the associated measurement and control system are made at P1 and P2 These connectors are identical electrically The redundant connector may be useful if a 5801 is used for both analog input and analog output and the data acquisition system has separate input and output connec tors Figure 3 3 is a diagram of the voltage I O provided on the P1 and P2 connectors of the 5B01 backplane A signal path is provided for each channel and in addition a number of grounding pins are present in the connector pinout to provide interchannel shield conduc tors in the ribbon cable In some cases discussed below the ground conductors will not provide an accurate signal reference so a SENSE pin is also provided in the pinout Several jumper and component options in the backplane provide optimum ground connections for various circum stances CHANNEL 0 CHANNEL 1 CHANNEL CHANNEL 14 15 Figure 3 1 5B01 Diagram 3 1 D b
79. m available on the measurement system Jumper W3 connects the sense input if available to pin 25 so that 58015 ground is read It can be left in place at all times Jumper W4 connects 5 V power common to input output common backplane measurement ground A connection between power common and input output common is important for the 5B Series modules to function properly however if this connection is made elsewhere in your system the best place is usually near the A D or D A converters W4 should be cut since a ground loop could result The 5B Series modules can prevent harm to the connected system even when a very large fast transient strikes all 16 field lines at the same time However proper grounding of the backplane is essential to get full protec tion since in such cases currents on the order of an ampere with rise times on the order of one microsecond must be diverted to ground Both the resistance and the inductance of the ground path are critical In applications where hazards of this magnitude exist the large 10 32 ground studs provided at each end of the 5B01 backplane should be connected to system ground by the shortest practical length of large diameter wire 10 1 95 The surge withstand capability can be tested with not less than 50 2 5 kV bursts per second A test duration of 2 seconds is widely accepted A rise time of 20 is specified and each module could see a surge current on the or
80. mper selections 71 77 Table III provides the resulting signal assignments for each of the various jumper selections Table II 5808 Interchannel Jumpers Connects Channel 0 Vour to Channel 1 Vy J2 Channel 1 to Channel 2 Vy Channel 2 to Channel 3 Channel 3 to Channel 4 5 Channel 4 to Channel 5 6 Channel 5 to Channel 6 J7 Channel 6 to Channel 7 Table III 5B08 Channel Assignments Using Output and Interchannel Jumpers Jumper Output Channel Closed Jumper Setting Connects Channels Connects Channel 0 to Channel 1 8 to 1 Channel 1 to Channel 2 9102 Channel 2 Channel 3 2103 10103 21011 10 to 11 Channel 3 to Channel 4 11to4 Channel 4 4105 12105 Channel5 41013 12 to 13 5 106 13 to 6 5 to 14 13 to 14 6to 7 14 to 7 6 to 15 14 to 15 Channel 5 to Channel 6 Channel 6 to Channel 7 5B08 5B08 MUX 5B08 GROUND JUMPERS Model 5B08 is supplied with three grounding jumpers W1 W3 and W4 These three jumpers are installed at the factory but can be changed to accommodate user system configuration needs Jumper W1 connects the and P2 shield pins Pins 3 6 9 12 15 18 21 and 24 to the 5B08 I O common backplane measure ment ground This will usually be the primary
81. mum of two terminals and a maximum of four 2 signal 2 excitation AC1361 Cold Junction Temperature Sensor Where thermocouple wires connect to copper terminals a correction for the thermoelectric potential of that junction must be made In the 5B Series modules this is accom plished by measuring the temperature at the screw terminals and applying a correction signal in the module The AC1361 temperature sensor was designed specifi cally for this purpose It is a cold junction temperature sensor optimized for operation in the temperature range from 5 to 45 and is intended to be used exclu sively with 5B Series thermocouple input modules Installing sensors in every channel provides maximum system flexibility When a system is configured in this way no advance knowledge of which channels will be assigned to thermocouple inputs or whether a particular channel will be an input or an output is required The design of the AC1361 makes tliis possible in two ways Connection of the AC1361 to the associated module will not affect the operation of any non thermocouple module in any way see Figure 4 3 The calibration of the AC1361 is independent of the thermocouple module with which it is used 5B MODULE TOP VIEW 4 DOTTED LINES SHOW TYPICAL CONNECTIONS FROM MODULE TO FIELD TERMINALS SOCKETS FOR AC1362 RESISTOR 1361 VIEW 2
82. n each 58 Series input module simply ground the read enable input to power common Effects of the Output Switch The output switch has a typical resistance of 50 Q and a maximum resistance of 100 The effect of this resis tance is twofold First in analog bus applications the bus capacitive load interacts with the switch resistance to determine the output selection time The specified 6 Lis settling time is valid for capacitive loads up to 2 000 pF Since the output capacitance switch off of a module is only 25 pF this will not usually be a limitation even in combination with typical backplane tracks Larger loads will result in longer settling times Second an error voltage is developed across the switch when it is resistively loaded In addition to the expected effect on gain error load resistances less than 20 will also degrade nonlinearity and gain temperature coeffi cient Using the Track and Hold Feature Each output module includes a track and hold circuit which allows one DAC to serve numerous output chan nels The output droop rate is 80 5 which corresponds to a refresh interval of 25 ms for 0 0146 full scale droop The track and hold is controlled by an active low enable input which is compatible with CMOS and LSTTL signals If you do not wish to use the track and hold present in each output module simply ground the write enable input to power common 10 1 95 Miscellan Topi Other system des
83. n information in using both modules and backplanes 5 9808 5808 P2 1 10 0 7 CHO 1 1 2 2 2 CH8 1 2 e A 2 5 CHI 1 5 1 2 8 9 1 4 39 1 2 7 az CH2 1 7 1 o P28 2 Vo2 CH10 Pi 8 1 CH3 1 T P2 10 H o uos CH11 10 3 N P2 13 CHA 1 13 1 2 to 02 voa a 4 4 4 66 56 6 5 9 6 5 6 CH12 1 14 1 EXC LO EXC EXC LO HI EXC EXC LO HI EXC EXC LO HI EXC bii CHANNEL 0 CHANNEL 1 CHANNEL 2 CHANNEL 3 5 1 17 LO 2 ma 1 05 CH13 P1 16 1 wor P2 19 CHE 1 19 P un 1 2 20 14 1 20 2 23 CH7 1 23 1 T 2 5 02 07 CHIS 1 22 10 0 7 SENSE P1 25 4 4 4 4 8 5 5 66 5 6 Tes 66 6 666 ores ACOM 1 3 EXC LO HI EXC EXC LO Hi EXC EXC HI EXC EXC LO HI EXC CHANNEL 4 CHANNEL 5 CHANNEL 6 CHANNEL 7 ACOM P1 6 5VD ACOM P1 9 NOTES 1 U1 U8 ARE CJC TEMPERATURE SENSORS 1361 98 2 RS1 RS8 ARE OPTIONAL IN RESISTORS FOR CURRENT ACOM 1 12 ACOM P1 15 INPUTS 1362 ACOM 1 18 1 21 1 24 1 26 Figure 5 5808 Schematic Diagram 6 9B08 5B08 MUX 2 061 058 ARE OPTIONAL RESISTORS FOR CURRENT INPUTS AC1362 1 01 4
84. nal Block Diagram A single 5 V supply powers a clock oscillator which drives power transformers for the input circuit and the output s high compliance current loop supply The output current loop is of course fully floating In addition the input section acts as a third floating port eliminating many problems that might be created by ground loops and supply noise The common mode range of the input circuit is limited however input common must be kept within 1 V of power common 1 A current path must exist between input common and power common at some point for proper operation of the module See Chapter 4 for details 2 The 0 to 20 mA output of a 5B39 04 can be con verted 0 to 10 V output by dropping 500 resistor across the output terminals This voltage output should be used cautiously Since is not a true voltage source the tolerance of the resistor and load impedances that are not large relative to the conversion resistor will introduce errors load impedance 2500 would contribute 0 146 error Input Range Output Range Model 5 V to 45 2 14 12 1 91 5839 Specifications typical 25 and 5 V Power Standard Input Ranges 45 Vor 5 V to 45 12 mA or 0 20 mA 006900 500596 span 20 02 span Stability vs Ambient Temperature Zero 3055 Span 320 ppm of reading C Output Ripple 100 Hz bandwidth 30 pA peak peak Common Mod
85. ns 1 Appendix Drill 1 B 1 Appendix C 5802 Jumper Configurations eere UM C 1 Appendix D 5837 Transfer Function eere esee eee eterne enean D 1 10 1 95 10 1 95 List of Figures Description Page Functional Block Diagram of a General Measurement and Control Application Using the 5B Series 5B Series Module Outline and Pin Designations 5830 and 5831 Functional Block Diagram 0 222242224 4 5832 Functional Block Diagram P M 2 6 5834 Functional Block Diagram esee 2 8 5837 Functional Block Diagram 2 10 5B38 Functional Block 22 22 2 12 5B39 Functional Block Diagram 2 14 5B40 and 5841 Functional Block Diagram 2 16 5B45 and 5846 Functional Block Diagram 22 2 2 2222 2 2 2 18 5847 Functional Block Diagram 2 22 1 2 20 1367 Functional Block Diagram 0 2 064 4 0 2 22 Diagram 3 1 Schematics ro eid dria du du d dq aea aet 3 2 5801 System Connector 3 3 5B02 Diagram aaepe tertie vo PARI Uter 3 4 5 02 System Connector
86. nse is granted by implication or otherwise under any patent or patent rights of Analog Devices Linearized 4 Wire RTD Input Module MODEL 5B35 FUNCTIONAL BLOCK DIAGRAM CHOPPER DIF nd LATION 4 WIRE RTD NO CONNECT The four wire configuration of the 5835 supplies the RTD excitation current through two leads that are not the signal input leads Because there is no excitation current in the signal input leads the lead lengths or resistances have no effect on the RTD measurement optimized five pole Butterworth filter with 4 Hz bandwidth provides 116 dB of normal mode rejection at 60 Hz and 108 dB at 50 Hz Output noise is an exceptionally low 0 3 mV p p at 100 kHz bandwidth and 6 mV p p at 5 MHz bandwidth The input circuit is protected against accidental application of voltages such as an ac power line up to 240 V rms continuous series output switch is included to eliminate the need for external multiplexing in many applications This switch has a low output resistance and is controlled by an active low enable input When the output switch is not used ground the enable input to I O common to turn on the switch One Technology Way P O Box 9106 Norwood MA 02062 9106 U S A Tel 781 329 4700 World Wide Web Site http www analog com Fax 781 326 8703 Analog Devices Inc 1997 MODEL 5B35 SPECIFICATIONS 25 anav Table I Standard Model Input Output Rang
87. nt ground to system measurement ground via the shield wires in the ribbon cable could result in a ground loop If the application involves only input modules and a sense input is used on the measurement system W1 should be cut to prevent ground loop 5B08 5B08 MUX CAUTION W1 is required if output modules are used or there is no high impedance sense input on the measurement system In these cases the best defense against ground loop errors is to minimize the distance between the backplane and the associated system and to route any large currents carefully to minimize ground differences 5 08 5 08 INPUT FIELD CONNECTIONS All field sensor and transducer connections to 5 08 and 5B08 MUX are made to 4 screw terminal connectors associated with each channel Figure 7 illustrates the specific field connec tions for each of the various 5B Series modules SB SERIES MODULES The 5B Series provides a selection of over 14 module types covering sensors signals such as mV V thermocouple potenti ometer RTD mA frequency and strain Both standard input output ranges are available as well as custom ranges The 5B Custom program diskette a Windows based program is available from Analog Devices to assist the user both in selecting a standard module range and or verifying if a custom range is available Additionally a 5B Series User manual is available to provide detailed specifications on all 5B Series modules and applicatio
88. of a 5B37 The output voltage of a 5B37 thermocouple signal conditioner can be calculated by knowing a the thermocouple input voltage at the measurement tempera ture b the thermocouple input signal at the minimum point of the 5B37 module temperature range and c the 5B37 gain Transfer Equation for 5B37 To determine the output voltage from a 5B37 module use the following equation Vour T C Output V GAIN ZERO where 1 Vg is 5B37 module output in volts 2 T C Output is the thermocouple output voltage in mV at the temperature being measured 3 V mro is the thermocouple output voltage in mV at the minimum temperature span specified for the 5B37 module 4 GAIN is the throughput gain in V mV of the 5B37 module Temp C lo Range Vout V lo Range hi Vin mV lo Range hi Vin span Gain V mV Vzero mV 10 1 95 5837 Model Ros sos 100 100 100 0 0 0 0 760 1350 400 900 1750 1750 1800 4632 3 553 3 378 42 922 54125 20 869 47 554 57 678 24 247 20 878 18504 13585 47 502 0 105143 0 086688 0 206211 0072692 0 239486 0270211 0 368052 0105258 The table show below provides the thermocouple output voltage at the minimum temperature span of each 5837 module V and the 5837 gain Sensors Software Program For assistance in determining a specific thermocouple output volt
89. olation RTD excitation RTD lead resistance compensation signal filtering and input protec tion against line voltage connection series output switch eliminates the need for external multiplexing The industry standard 5B Se ies encapsulated plug in modular package is compatible with all 5B backplanes Modules are powered by 5 V dc 5596 Signal isolation is provided by transformer coupling using a proprietary technique for linear stable performance demodu lator on the output side of the signal transformer recovers the input signal which is filtered and buffered to provide an accu rate low impedance low noise output True three port isolation includes common mode voltage of 1500 V rms between input and output and between input and power 250 V rms between output and power The modules provide RTD excitation from a precision current source A low drift chopper stabilized differential amplifier design allows for the use of very low RTD excitation currents to minimize accuracy losses from self heating of the RTD The low input offset drift of 0 01 C C and gain drift of 30 ppm C assure that accuracy is maintained over a wide operating tem perature range REV 0 Information furnished by Analog Devices is believed to be accurate and reliable However no responsibility is assumed by Analog Devices for its use nor for any infringements of patents or other rights of third parties which may result from its use No lice
90. ole low pass butterworth filter and buffered to provide a clean low impedance output signal Output Switch A series output switch is included to eliminate the need for external multiplexing in many applications This switch has a low output resistance 50 ohms and is controlled by an active low enable input In cases where the output switch is not used the enable input Should be grounded to power common to turn the switch ON as it is done on the 5 01 Backplane Threshold Selection The threshold is determined by user wiring on the input backplane screw terminals If the input signal is a zero crossing voltage input the input signal should be connected to the backplane screw terminals 4 and 3 to implement a 0 V threshold When the input signal is connected to screw terminals 3 and 2 the threshold is 1 4 V see Figure 2 9 Hysteresis Selection Hysteresis is set at 400 mV for signals connected to either terminals 3 amp 4 or 3 amp 2 However the user can change the hysteresis to 25 mV by the addition of a jumper between screw terminals 1 and 4 see Figure 2 9 Response Time Response time is a function of the input frequency range and the module bandwidth The table below indicates the output rise fall time and settling time for a step change input over the rated input ranges of the 5B45 and 5B46 Other ranges would have response times in between these values 2 18 Power Ground Input Section Bar
91. on the isolated input modules are labeled with white lettering on a black background the isolated output modules are labeled with white letters on a red background and the nonisolated switch inputs are labeled with black lettering on a white background 2 250 0 590 C 2 250 57 2 038PIN 14 0 590 0 095 2 4 0 145 3 7 PIN DESIGNATIONS RESERVED 1 0 COM 5V READ 0 Vout Vin POWER INHI SENSOR INLO SENSOR Figure 2 1 5B Series Module Outline and Pin Designations dimensions in inches and mm 12 1 91 Input Modules Variety of Signal Source Inputs Sensors Thermocouples RTDs Tachometers Flow Meters and Strain Gages Millivolt and Voltage Sources 4 20 mA or 0 20 mA Process Current Inputs Mix and Match input Capability High Level Voltage Output 5 0 5 0 10 45V High Accuracy 10 0596 Low Drift 1 Reliable Transformer Isolation 1500 Vrms CMV 160 dB CMR Meets IEEE STD 472 Transient Protection SWC Input Protection 240 Vrms Continuous Factory Ranged and Trimmed Custom Ranges Available The 5B Series input modules are galvanically isolated single channel plug in signal conditioners that provide input protection amplification and filtering and a high level series switched analog output which can eliminate the need for external multiplexers Key specifications include 1500 Vrms
92. ons Typical uses include mini and microcomputer based measure ment systems standard data acquisition systems pro grammable controllers analog recorders and dedicated control systems These modules are ideally suited to applications where monitoring and control of temperature pressure flow and other analog signals are required A general 5B Series measurement and control application is diagrammed in Figure 1 1 FMan A Approval The SB Series modules and backplanes are approved by Factory Mutual FM and 5B Series modules by the Canadian Standards Association CSA for use in Class I Division 2 Groups A B C and D Hazardous Locations These approvals certify that the 5B Series is suitable for use in locations where a hazardous concentration of flammable gas may exist under fault conditions of operation Electrical equipment of this category is classified as being Series Modules The 5B Series includes a growing family of isolated input and output modules are identical in size 2 25 x 2 25 x 0 60 and pinout The choice of specific modules depends on the signals involved in a particular applica tion The transfer function provided by each input module is Input Output specified sensor measurement range 0 to 5 Vor 5 V to 5 V The transfer function provided by each output module is Input 0to 5 V or 5 V to 5 V Output 4 20 mA or 0 20 mA The available functions l
93. or 0 to 5 V output Both modules feature a 10 kHz bandwidth Figure 2 8 is a functional block diagram of the 5B40 and SB41 A protection circuit assures safe operation even if a 240 Vrms power line is connected to the input and in the 5B41 the signal is attenuated by a factor of 20 at this point A one pole anti aliasing filter is located at the module s input while a thre pole low pass filter in the output stage sets the bandwidth and yields optimum noise performance A low drift input amplifier provides all of the module s gain This amplifier operates on the input signal after subtraction of a stable laser trimmed voltage which sets the zero scale input value It is therefore possible to suppress a zero scale input that is many times the total span to provide precise expanded scale measure ments 1 Signal isolation is provided by transformer coupling using a proprietary modulation technique for linear stable performance demodulator on the output side of the signal transformer recovers the original signal which is then filtered and buffered to provide clean low impedance output A series output switch is included to eliminate the need for external multiplexing in many applications This switch has a low output resistance and is controlled by an active low enable input In cases 5B40 and 5 41 Ordering Information Input Range 10 mV to 10 mV 5 V 0 5 50 mV to 50 mV 5 V to 5 V
94. pecifications same as 5840 1Vz is the input voltage that results in a 0 V output Includes the combined effects of repeatability hysteresis and nonlinearity and assumes very high load resistance The output resistance value can be used to determine gain error when the module is driving a resistive load Note however that loads heavier than 20 kQ will also degrade nonlinearity and gain temperature coefficient Specifications subject to change without notice 10 1 95 2 17 5845 and 5846 Frequency input Modules The 5B45 is an isolated frequency input module that accepts full scale input frequency signals ranging from 500 Hz to 20 kHz Model 5 46 is an isolated frequency input module that accepts full scale input signals ranging from 20 kHz to 275 kHz Both modules have a user selectable threshold of either 0 V or 1 4 V and a user selectable hysteresis of either 25 mV or 400 mV Circuit Description Figure 2 9 shows a functional block diagram for models 5845 and 5846 Input protection of up to 240 Vrms is provided on the four input Screw terminals The input signal is compared to the selected threshold and hysteresis Signals of virtually any waveshape which exceed the combined threshold and hysteresis levels will trigger the comparator The comparator s output frequency is transmitted across a proprietary isolation barrier and converted into a high level analog signal The signal is then filtered by a two p
95. r Table 3 2 Module Power Requirements This is connected to TB17 on the 5 01 and TB16 on the 5 02 Model Current 5B30 30 mA sv 5831 PWR 2 5832 30 34 30 mA 5837 30 16 5 38 Figure 3 10 Power Connection 5B39 Terminal Block 17 5 01 5B40 Terminal Block 16 5802 5B41 The power supply is bused to all signal conditioners on 5 45 the backplane The total subsystem power requirement is 5B46 70 mA a function of the modules that are used Module power 30 mA requirements are listed in Table 3 2 A chassis mounting model 955 5 V power supply is available Jua resistance is 750 Q HYS 14V FULL BRIDGE STRAIN GAGE EXC HALF BRIDGE STRAIN GAGE Figure 3 11 Input Field Connections 3 8 10 1 95 17 40 442 0 0 15 3 8 1 275 32 4 100 0 Oy 95 9 Q9 2919 09 9 gono og 21 ND a BESS en 0 600 3 053 Lato MAX 2 25 57 2 0 06 LN 0 75 19 1 0 14 CLEARANCE 3 6 Figure 3 12 5801 and 5802 Backplane Mounting Dimensions in Inches and mm 8 17 475 Figure 3 13 AC1363 Rack Mount Diagram dimensions in inches and mm Field Termination Output screw terminal connections All field terminations are made at terminal blocks 1 16 of the 5801
96. rier Figure 2 9 5845 and 5B46 Functional Block Diagram Section 5B45 and 5B46 Response Time Output Common Connection The single 5 V supply powers a clock oscillator which drives power transformers for both the input and output circuits The input circuit is fully floating and isolated from the output common and the power common In addition the output section acts as a third floating port eliminating many problems that might be created by ground loops and power supply noise The common mode range of the output circuit is limited and the output common must kept within 3 V of power common Note A current path must exist between power common Pin 16 and output common Pin 19 for proper operation of the output switch See Chapter 4 for details 5B45 and 5B46 Ordering Information Model Input Range Output Range 0 to 500 Hz 010 45V 0 to 1 kHz 45 V 0 to 2 5 kHz 010 45 V 0 to 5 kHz 010 5 V 0 to 10 kHz 0 to 25 kHz 0 to 50 kHz 0 to 100 kHz 0 to 250 kHz 0to 45 V 010 45 V 010 45 V 45 V 0 to 45V 10 1 95 5845 and 5846 Specifications typical 25 and Vs 5 V dc FREQUENCY INPUT Frequency Ranges Standard Ranges Span Limits Custom Input Ranges Overrange Voltage Range Waveforms Pulse Width Pulse Train Inputs Protection Continuous Threshold Options TTL Input Low 40 C to 85 C TTL Input High 409 to 85 Hysteresis Options Impedance Small S
97. rom the host data acquisition system are used to address the 5B Series modules and designate inputs and outputs Only one analog input one analog output and a number of digital outputs are required to address up to 64 analog input output channels using eight 5B08 MUX backplanes MODEL 5808 SYSTEM CONNECTOR Signal connections between the 5B08 MUX and the associated measurement or control system are made at Pl a 26 pin connector The pinout of P1 is shown in Figure 4 One signal path is provided for inputs and one for outputs Input and output modules are independently addressed by two sets of six address pins and an enable pin In addition a number of grounded pins are present in the connector pinout to provide shield conductors in the ribbon cable In some cases discussed below the ground conductors will not provide an accurate signal reference so a SENSE pin SNS LO is also provided in the pinout Several jumper and component options in the backplane provide optimum ground connections for various circumstances VREAD o SNS LO VO COM LSB BIT2 READ INPUT BIT3 4 ADDRESS BITS MSB LSB 2 WRITE OUTPUT BIT 4 ADDRESS 0 MSB READ ENB 0 WRITE ENB 0 NC RESERVED NC D COM VIEW 5 THE ANALOG OUTPUT OF INPUT MODULES Vwarre 15 THE ANALOG INPUT OF OUTPUT M
98. round Output Selection Time C 010 2000 pF Output Selection Input Max Logic 0 Min Logic 1 Max Logic 1 Input Current 0 Power Supply Voltage 5 V 55 Power Supply Sensitivity 32 pV Vs Power Consumption 150 mW 30 mA 2 25 x 2 25 x 0 60 52 mm x 52 mm x 15 mm Environmental Temperature Range Rated Performance 259 to 85 Temperature Range Operating 40 C to 85 C Temperature Range Storage 409 to 85 C Relative Humidity MIL 202 RFI Susceptibility 0109590 60 noncondensing 0 5 span error 400 MHz 5W 3 1121 the nominal value of input current which results in an output of 0 V Includes the combined effects of repeatability hysteresis and nonlinearity and assumes very high load resistance Does not include input resistor error The current to voltage conversion resistor AC1362 is supplied as a plug in component for mounting external to the module gt The output resistance value can be used to determine gain error when the module is driving resistive load Note however that loads heavier than 20 will also degrade nonlinearity and gain temperature coefficient Specifications subject to change without notice 10 1 95 5834 Input Module The 5834 input module accepts a wide variety of RTD types as inputs and provides a linearized output of 0 to 45 V Figure 24 is a functional block diagram
99. rounded at a convenient point and good electrical contact between all side panels must be assured wiring must be routed through a metal conduit or wire chase flexible or rigid conduit must earth grounded and electrically connected to the cabinet Due to the low input levels it is recommended that all input output and power Jines be shielded The wiring must be connected as de scribed in Chapter 3 of this manual Flexible Rigid Metal Conduit POWER SUPPLY 5 BACKPLANE CONTROL SYSTEM Metal Cabinet General Wiring Configuration _ CE CERTIFICATION TESTS The 5B Series modules have been tested and certified according to the rigorous electromagnetic constrains of the EN50082 2 and EN50081 2 European Standards The tests performed in accordance with these standards were Radiated RF Immunity 80 MHz to 1000 MHz Pulsed RF Immunity 900 MHz 50 Duty Cycle 200 Hz Conducted RF Immunity 150 KHz to 80 MHz Magnetic Field Immunity 50 Hz Fast Transient Inmunity ESD Immunity Contact Method ESD Immunity Air Discharge Method Voltage Surge Immunity Emissions When used according to these installation directions any errors caused by EMI RFI interference will be less than 0 1 of the full scale 5B measure ment range typical 25 for field strengths up to 10 V M and frequen cies up to 1 GHz the furnished under this ial defects fora pa o
100. rs on the backplane determine which module is read input type or driven output type Separate decoders are provided for inputs and outputs To permit system expansion up to eight 5B08 MUX backplanes can be daisy chained on the system ribbon cable for a total of 64 channels Jumpers on each backplane labeled J1 J9 and J10 J18 determine the block of eight addresses assigned to each backplane Input read and output write addressing are completely independent in all cases Jumpers 1 9 control inputs and 10 18 control outputs Independent addressing might be used for example to update output modules without interrupting the monitoring of input modules Table IV 5B08 MUX Address Jumpers SB08 MUX FACTORY JUMPER SETTINGS 5B08 MUX backplanes are factory configured with jumpers at positions 1 and 10 This sets up the 5B08 MUX backplane as a stand alone 8 channel system Moving the jumpers to any other position in the two blocks of jumpers enables decoding of the full six address bits the exact position of the jumper determines address position for the 5B08 MUX backplane as shown in Table IV To use multiple 5B08 MUX backplanes in this manner connect the corresponding I O connector pins of each backplane in parallel Model CAB 01 cable is a ribbon cable with three 26 pin connectors designed for this purpose 5B08 5B08 MUX FUSING AND POLARITY REVERSAL Since reversing the polarity of the 5 V dc power source could
101. s not isolated and there is no gain or attenuation of the signal Figure 2 11 is a functional block diagram of the 1367 wa 17 This module is protected for continuous inputs of 10 V and will withstand 20 V for 10 seconds Above these amp V t ws limits a nonreplaceable fuse within the module may blow The resistance between the input and the output is Figure 2 11 AC1367 Functional Block Diagram 250 Q when the module is enabled As with all 5B Series modules a series output switch is included to eliminate by an active low enable input In cases where the output the need for external multiplexing in many applications Switch is not used the enable input should be grounded to This switch has a low output resistance and is controlled power common to on the switch as it is on the 5801 backplane AC1367 Specifications typical 25 and 5 V Power Note Input voltages above those specified may cause permanent Input Resistance damage to the module Normal Power Off Overrange 200 Q Rise Time WES 20 for 10 seconds Output Selection Input Max Logic 0 Min Logic 1 Max Logic 1 Input Current 0 ET Input Low is internally connected to Com Temperature Range Rated Performance 25 C to 85 2 High and Input Lo
102. s which are not normally used in thermocouple applications Most benchtop calibration sources have the necessary isolation to work properly ISOLATED INPUT MODULE In these applications a CJC voltage of 510 0 mV will simulate sensor operation at a terminal temperature of 25 Since there are no parasitic thermocouples at the screw terminals to correct all output readings will appear to be 25 higher than would be implied by the input voltage With the 25 C shift taken into account however module operation is close to normal conditions for test or evaluation purposes Alternatively a CJC voltage of 572 5 mV can be applied simulating operation at a terminal temperature of 0 C Millivolt inputs can then be read directly from thermocouple tables without any temperature shift At 572 5 mV however since the module s cold junction correction circuitry is operating far from its design center its errors will be larger than would be the case in normal operation Power Connection Caution The AC 1360 is not protected against reversed power supply connections A reversal may destroy the installed module Double Isolation Protection A board using the 5B Series modules can be configured to provide a double isolation barrier as shown in Figure 4 8 common mode voltage at the input would have to break down the barrier in the input module and raise local common ground enough to break down the barrier in the output module
103. s that might be created by ground loops and supply noise The common mode range of the output circuit is limited however output common must be kept within 3 V of power common Notes 1 A current path must exist between power common and output common for proper operation of the demodulator and output switch See Chapter 4 for details 2 The AC1362 is a 20 0 0 1 typical 1 4 watt 20 ppm C resistor which is fully encapsulated The resistor tolerance will directly affect the performance of the data acquisition system and should be included in the worst case analysis of the system The AC1362 is shipped with the 5B32 module Spares may be ordered as part number AC1362 12 1 91 5832 Specifications typical 25 and 5 Power Input Ranges 0 to 20 mA 4 to 20 mA Rang Accuracy 0 05 span 0 05 121 Input Resistor Value 20 00 Q Accuracy 40 190 Nonlinearity 40 0290 span Stability vs Ambient Temperature Module Offset 0 0025 of Izt Module Gain 0 0025 of reading C Noise Input 0 1 10 Hz 10 nArms RTI Output 100 kHz 200 uVrms RTO Input to Output Continuous 1500 Vrms max Transient meets IEEE STD 472 SWC TM in Eiter o 1 kQ in Either or Both Input Leads 160 dB all ranges Continuous 240 Vrms max continuous Transient meets IEEE STD 472 SWC Voltage Output Protection Continuous Short 10 G
104. s the user to assign 5808 to either the upper eight I O pins CH1 CH2 CH3 5 CH6 CH7 or to the lower eight I O pins CH8 CH9 CH10 CH11 CH12 13 CH14 CH15 This capability allows two 8 channel 5808 backplanes to be used in 16 channel configuration with all I O assigned to the 16 unique I O pins 0 15 Table I illustrates the channel assignments for each of the eight jumpers J8 through 15 Table I 5808 Output Channel Assignments Jumper Position Connects LO Channel 0 HI LO Channel 1 HI LO Channel 2 HI LO Channel 3 HI Channel 4 Channel 5 HI LO Channel 6 HI LO Channel 7 HI 5808 INTERCHANNEL JUMPERS 5 08 offers the user the ability to easily connect the village output of any 5B Series input module directly to the voltage input of an adjacent output module e g Model 5B39 by placing a jumper over two pins J1 J2 J3 14 J5 16 or J7 This feature can be used to provide an isolated current output from an isolated input module This results in both isolated voltage and isolated current outputs from a single sensor input signal A kit of ten jumpers is available as Model AC1344 Channel REV A Table II shows the channel assignments when Jumpers 1 77 are used Additional configuration flexibility is provided when the output jumper selections 78 15 are combined with the inter channel ju
105. signal filtering and input protection against line voltage connec tion The series output switch eliminates the need for external multiplexing The industry standard 5B Series encapsulated plug in modular package is compatible with all 5B backplanes Modules are powered by 5 V dc 5 Signal isolation is provided by transformer coupling using a proprietary technique for linear stable performance demodu lator on the output side of the signal transformer recovers the input signal which is filtered and buffered to provide an accu rate low impedance low noise output True three port isolation includes common mode voltage of 71500 V rms between input and output and between input and power 250 V rms between output and power The modules provide potentiometer excitation from a precision current source A low drift chopper stabilized differential amplifier design allows for the use of very low excitation currents to minirnize accuracy losses from self heating of the potentiom eter The low gain drift of 30 ppm C and low offset drift assure that accuracy is maintained over a wide operating tem perature range The 5B36 supplies equal excitation currents to three wire potentiometers to cancel the effects of lead resistance optimized five pole Butterworth filter with 4 Hz bandwidth provides 116 dB of normal mode rejection at 60 Hz and 108 dB REV 0 Information furnished by Analog Devices is believed to be accurate an
106. solation and automated surface mount manufacturing technology This allows for long term stability and channel to channel isolation They are compact economical components whose performance exceeds that available from more expensive devices Combining 1500 Vrms continuous CMV isolation 0 05 calibrated accuracy small size and low cost the 5B Series is an attractive alternative to expensive signal conditioners and in house designs modules are hard potted and identical in pinout and size 2 25 x 2 25 x 0 60 They can be mixed and matched on one backplane permitting users to address their exact needs and may be changed without disturbing field wiring The isolated input modules provide 0 to 5 V or 5 V to 45 V outputs depending on model type and accept J K T E R S N and B thermocouples 100 Q platinum 10 copper and 120 Q nickel RTDs strain gages mV V 4 20 mA or 0 20 mA frequency 0 to 250 kHz and wide bandwidth 10 kHz mV and V signals These modules feature complete signal condi tioning functions including 240 Vrms input protection filtering chopper stabilized low drift 1 amplification 1500 Vrms isolation linearization for RTD and thermocouple inputs and sensor excitation when required The output module converts a 0 to 5 V or 55 V input to an isolated 4 20 mA or 0 20 mA process current signal All modules feature excellent common mode rejection and meet IEEE STD 472 SWC These
107. t CJC Sensor if applicable Stability vs Ambient Temperature Input Offset Output Offset 20 V C 325 ppm of reading C Input Resistance Normal 5 Power Off 40 KQ Overload Noise Input 0 1 10 Hz 0 2 u Vrms RTI Output 100 kHz 200 Vrms RTO Bandwidih 3 dB Rise Time 10 90 Span Input to Output Continuous 1500 Vrms max Transient meets IEEE STD 472 SWC CMR 50 or 60 Hz 1 kQ in Either or Both Input Leads 160 dB all ranges NMR 50 or 60 Hz Continuous 240 Vrms max continuous Output Selection Input Max Logic 0 Min Logic 1 Max Logic 1 Input Current 0 Open Input Response Open Input Detection Time 10s Cold Junction Compensation Initial Accuracy 25 3 0 25 40 759 max Over 5 C to 45 0 5 0 0125 Size 2257 2 25 0 60 52 x 52 mm x 15 mm Environmental Temperature Range Rated Performance 259 to 85 C Temperature Range Storage 409 to 85 Temperature Range Operating 40 to 85 Relative Humidity MIL 202 RFI Susceptibility 0 to 95 60 C noncondensing 0 5 span error 400 MHz 5 W 3 Vz nominal input voltage that results in a 0 V output Includes the combined effects of repeatability hysteresis and nonlinearity and assumes
108. ting 5B47 modules with a mV source the cold junction temperature sensor will introduce errors See the AC1360 discussion in Chapter 4 0to45 V 5 V 010 5 0to45 V 0to 45 V 5 V 0 5 0 5 0 5 V 0 5 0to 5 V 5B47 J 01 5B47 J 02 5B47 J 03 5 47 04 5 47 05 5 47 06 5 47 07 5 47 08 5 47 09 5B47 S 10 5B47 B 11 1 1 C CJC sensor accuracy should be added to the module accuracy for a system accuracy if applicable 2 20 10 1 95 5847 Specifications typical 25 C and 5 V Power Input Span Limits 5 mV to 10 5 V Output Range Oto 45 V See Ordering Information Stability vs Ambient Temperature Input Offset 1 V C 25 ppm of reading C Input Resistance Normal 5 Power 40kQ Overload 40 KQ Output Noise 100 kHz 500 Bandwidth 3 dB Rise Time 10 to 90 Span 0 25 Input to Output Continuous 1500 Vrms max Transient meets IEEE STD 472 SWC CMR 50 or 60 Hz 1 kQ in Either or Both Input Leads 160 dB all ranges NMR 50 or 60 Hz 1 0 dB us Continuous 240 Vrms max continuous 500 Continuous Short to Ground Output Selection Time C 0 to 2 000 pF 6 Output Selection Input Max Logic 0 Min Logic 1 Max Logic 1 Input Current 0 Open Input Response upscale Open Input Detection Time 10s
109. tion technique for linear stable performance A demodulator on the output side of the signal transformer recovers the original signal which is then filtered and buffered to provide a clean low impedance output A series output switch is included to eliminate the need for external multiplexing in many applications This switch is controlled by an active low enable input In cases where the output switch is not used the enable input should be grounded to power common to turn on the switch as it is on the 5 01 backplane The single 5 V supply powers a clock oscillator which drives power transformers for the input and output circuits The input circuit is fully floating In addition the output section acts as a third floating port eliminating 5B38 Ordering Information ANTI ALIASING FILTER SIGNAL ISOLATION 1 NC JUR E 2100 FILTER COM Figure 2 6 5B38 Functional Block Diagram many problems that might be created by ground loops and supply noise The common mode range of the output circuit is limited however output common must be kept within 3 V of power common The 5838 can be used with half bridge transducers since the module contains bridge completion circuitry The module can be factory configured for wide input ranges to accommodate the DC offset created by mismatches in the transducer There is no provision for use with quarter or three quarter bridge strain gages However
110. to 572 F 0045 5B34 N 01 CUSTOM version of the 5834 100 Q Platinum may be ordered with an alpha of 0 00397 12 1 91 5834 Specifications typical 25 and 5 V Power Accuracy 0 05 span 0 04 Q 0 05 Rzt Stability vs Ambient Temperature Input Offset 0 02 Output Offset 20 pV C 50 ppm of Input Resistance Normal 5MQ Power Off 40 KQ Overload Noise Input 0 1 10 Hz 40 0 2 u Vrms RTI Output 100 kHz 200 uVrms RTO Bandwidth 3 dB Rise Time 10 to 90 Span CMV Input to Output Continuous Transient 1500 Vrms max meets IEEE STD 472 SWC CMR 50 or 60 Hz 1 kQ in Either or Both Input Leads 160 dB all ranges NMR Dor 60 Sensor Excitation Current 100 Q Pt 120 Q Ni 100 Cu Lead Resistance Effect 100 Pt 120 QNi 0 02 100 Cu 0 2 C Q Input Protection Continuous 240 rms max continuous Output Selection Input Max Logic 0 Min Logic 1 Max Logic 1 Input Current 0 0 25 mA 1 0mA 0 025 Q for Cu RTD s Supply Vol 5 V 5 YS pos uy 0 05 C V Rz is the value of the RTD resistance at the 10Q Cu k 0 59 lowest point of the measurement range I ncludes the combined effects of repeatability hysteresis and linearity and
111. ually near the D A or A D converters W1 should be cut since a ground loop could result Individual backplanes are DIN rail compatible using Phoenix Universal Mounting UM modules Two or more backplanes can be mounted in wider UM assemblies Mounting a single 5 03 or 5 04 would require the following Phoenix parts Model Description Qty UM BEFE Base Element with Snap Foot 1 UM SE Side Element 2 Mounting 2 or more backplanes would require Side Element Base Element Connection Pins where is the total number of 5B03 and 5804 back planes to be DIN rail mounted The snap foot elements will fit DIN EN 50022 DIN EN 50035 and DIN EN 50045 rails 5B03 and 5 04 Backplane 1 06 oz 30 2 g Specifications same as 5 03 Specifications subject to change without notice DO NOT REVERSE gt LOCAL POWER CAUTION DO NOT REVERSE POWER SUPPLY CONNECTIONS SOCKET FOR AC1362 CURRENT CONVERSION RESISTOR USED WITH 5B32 MODULES ISOLATED Figure 3 8 5803 Wiring Diagram PWR COM Vw Vour 5V LOCAL CAUTION POWER SUPPLY CONNECTIONS EXC EXC NOTE HI TERMINAL BLOCK Lo ORIENTATIONS DIFFER EXC ISOLATED vo SOCKETS FOR THE AC1362 CURRENT CONVERSION RESISTORS USED WITH 5832 MODULES Figure 3 9 5804 Wiring 3 7 5 Series backplanes require external 5 V powe
112. un te 3 zd GZ qe i 4m 52 9 9 5 For information on configuring multiple 5802 backplanes see Appendix 5802 Schematic 3 6 Figure 3 5 The surge withstand capability be tested with not less than 50 2 5 kV bursts per second A test duration of 2 seconds is widely accepted A rise time of 20 kV ps is specified and each medule could see a surge current on the order of 1 A When such a safety ground is used the connection of backplane measurement ground to system measurement ground via the shield wires in the ribbon cable could result in a ground loop If the application involves only input modules and a sense input is used on the measure ment system W1 should be cut to prevent a grourid loop Caution W1 is required if output modules are used or there is no high impedance sense input on the measurc ment system In these cases the best defense against ground loop errors is to minimize the distance between the backplane and the associated system and to route any large currents carefully so as to minimize ground differ ences Address Selection Jumpers The 5B02 backplane can hold 16 modules in any combi nation of inputs or outputs Address decoders on the backplane separate decoders are provided for inputs and outputs determine which module is read inputs or driven outputs To permit system expansion up to four backplanes c
113. very high load resistance The output resistance value can be used to determine gain error when the module is driving a resistive load Note however that loads heavier than 20 kQ will also degrade nonlinearity and gain temperature coefficient 3When used with AC1361 sensor see Chapter 4 which is provided on each channel of 5B Series backplanes and on the 1360 Specifications subject to change without notice 10 1 95 2 11 5838 Strain Gage Input Module The 5B38 wide bandwidth strain gage input module accepts signals from full bridge and half bridge 300 to 10 transducers The 5B38 provides 10 V excitation and produces an output of 5 V to 5 V This module features a bandwidth of 10 kHz Figure 2 6 is a functional block diagram of the 5B38 A protection circuit assures safe operation even if a 240 Vrms power line is connected to the input screw terminals The excitation section provides 10 V Since the excitation lines are not sensed at the strain gage care should be taken to minimize any IR loss in these wires This can be accomplished by the use of heavy gage wires or the shortest length of wire possible A one pole anti aliasing filter is located at the module s input while a three pole low pass filter in the output stage sets the band width and yields optimum noise performance A low drift amplifier provides the module s gain Signal isolation is provided by transformer coupling using a proprietary modula

The 5B Series User`s Manual

Contents

Download Pdf Manuals

Related Search

Related Contents