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USB-ERB24 User`s Guide

1. Environmental Table 8 Environmental specifications Operating temperature range 0 to 70 C Storage temperature range 40 to 100 C Humidity 0 to 95 non condensing Main connector Table 9 Main connector specifications Connector type Screw terminal Wire gauge range 12 to 22 AWG 4 3 USB ERB24 User s Guide Specifications Screw terminal pin out Table 10 Screw terminal pin out Pin Signal Name 1 NC Relay 1 Normally Closed contact 1 C Relay 1 Common contact 1 NO Relay 1 Normally Open contact 2 NC Relay 2 Normally Closed contact 2 C Relay 2 Common contact 2 NO Relay 2 Normally Open contact 3 NC Relay 3 Normally Closed contact 3 C Relay 3 Common contact 3 NO Relay 3 Normally Open contact 4 NC Relay 4 Normally Closed contact 4 C Relay 4 Common contact 4 NO Relay 4 Normally Open contact 5 NC Relay 5 Normally Closed contact 5 C Relay 5 Common contact 5 NO Relay 5 Normally Open contact 6 NC Relay 6 Normally Closed contact 6 C Relay 6 Common contact 6 NO Relay 6 Normally Open contact 7 NC Relay 7 Normally Closed contact 7 C Relay 7 Common contact 7 NO Relay 7 Normally Open contact 8 NC Relay 8 Normally Closed contact 8 C Relay 8 Common contact 8 NO Relay 8 Norma
2. 4 4 USB ERB24 User s Guide Specifications Pin Signal Name 22 NO Relay 22 Normally Open contact 23 NC Relay 23 Normally Closed contact 23 C Relay 23 Common contact 23 NO Relay 23 Normally Open contact 24 NC Relay 24 Normally Closed contact 24 C Relay 24 Common contact 24 NO Relay 24 Normally Open contact 4 5 CE Declaration of Conformity Manufacturer Measurement Computing Corporation Address 10 Commerce Way Suite 1008 Norton MA 02766 USA Category Electrical equipment for measurement control and laboratory use Measurement Computing Corporation declares under sole responsibility that the product USB ERB24 to which this declaration relates is in conformity with the relevant provisions of the following standards or other documents EU EMC Directive 89 336 EEC Electromagnetic Compatibility EN 61326 1997 Amendment 1 1998 Emissions Group 1 Class A EN 55011 1990 CISPR 11 Radiated and Conducted emissions Immunity EN61326 Annex A IEC 1000 4 2 1995 Electrostatic Discharge immunity Criteria C IEC 1000 4 3 1995 Radiated Electromagnetic Field immunity Criteria C IEC 1000 4 4 1995 Electric Fast Transient Burst immunity Criteria A IEC 1000 4 5 1995 Surge immunity Criteria C IEC 1000 4 6 1996 Radio Frequency Common Mode immunity Criteria A IEC 1000 4 8 1994 Magnetic Field immunity Criteria A IEC 1000 4 11 1994 Voltage Dip
3. All relays on 100 mA downstream hub power 1 5 A typ 1 8 A max All relays off 100 mA downstream hub power 230 mA typ 270 mA max 4 1 USB ERB24 User s Guide Specifications External power input Table 3 External power input specifications Parameter Conditions Specification External power input 6 0 VDC to 12 5 VDC 9 VDC power supply included Voltage supervisor limits PWR LED 6 0 V gt Vex or Vet gt 12 5 V PWR LED Off power fault Note 1 6 0 V lt Vex lt 12 5 V PWR LED On External power adapter included MCC p n CB PWR 9V3A 9 V 410 3 A Note 1 The USB ERB24 monitors the external 9 V power supply voltage with a voltage supervisory circuit If this power supply exceeds its specified limit the PWR LED will turn off indicating a power fault condition External power output Table 4 External power output specifications Parameter Conditions Specification External power output current range 4 0 A max External power output Note 2 Voltage drop between power input 0 5 V max and daisy chain power output Compatible cable s for daisy chain C MAPWR x x 2 3 or 6 feet Note 2 The daisy chain power output option allows multiple MCC USB Series products to be powered from a single external power source in a daisy chain fashion The voltage drop between the module power supply input and the daisy chain output is 0 5 V max Use
4. Depending on your load requirements daisy chained products may require a separate power supply Refer to Power limitations using multiple USB ERB24 devices on page 3 4 for more information 3 1 USB ERB24 User s Guide Functional Details USB LED The USB LED indicates the communication status of the USB ERB24 It uses up to 5 mA of current and cannot be disabled Table 3 2 explains the USB LED function Table 3 2 USB LED Illumination USB LED Indication illumination Steady green The USB ERB 24 is connected to a computer or external USB hub Pulsing green Initial communication is established between the USB ERB24 and the computer or data is being transferred PWR LED The USB ERB 24 incorporates an on board voltage supervisory circuit that monitors the external 9 V power If the input voltage falls outside of the specified range the PWR LED shuts off Table 3 3 explains the function of the PWR LED Table 3 3 PWR LED Illumination PWR LED Indication illumination Steady green External power is supplied to the USB ERB24 Off Power is not supplied by the external supply or a power fault has occurred A power fault occurs when the input power falls outside of the specified voltage range of the external supply 6 0 V to 12 5 V Invert non invert switch S1 The Invert non invert switch S1 sets the relay control logic per relay bank to either inverted or non inverted By
5. Relay driver 500 mA USB 2 0 compliant interface USB Microcontroller Relay driver Switch S1 inv non inv Switch S2 pull up down Relay driver Screw terminal 2 o 9 2 NC C NOJ NC E Ne NC CN o OF o oe NCC INC CN 1 OITIS INC CN NCC Nt ncc INC CN NCC NC CN NC CN NC CN INC CNO NC e oco ess ees ges eos eos ess ess sos NC CN sss Ses NC CN NC C NOJ NC E Ne NCC INC CN sss ees Ooo sos INC CN 4 INC CN Figure 1 2 USB ERB24 functional block diagram Software features For information on the features of JnstaCal and the other software included with your USB ERB24 refer to the Quick Start Guide that shipped with your device The Quick Start Guide is also available in PDF at www mecdag com PDFmanuals DAQ Software Quick Start pdf Check www mccdag com download htm for the latest software version or versions of the software supported under less commonly used operating systems 1 2 USB ERB24 User s Guide Introducing the USB ERB24 Connecting a USB ERB24 to your computer is easy Installing a data acquisition device has never been easier The USB ERB24 relies upon the Microsoft Human Interface Device HID cla
6. Relays NC contact pull up to USB 5 V R97 R99 R101 R104 R106 R108 R110 R111 R113 R115 R117 pull down user installed Relay contact protection circuit for inductive loads When you connect an inductive load to a relay energy stored in the inductive load can induce a large voltage surge when you switch the relay This voltage can severely damage the relay contacts To limit the voltage surge across the inductive load in a DC circuit install a kickback diode across the inductive load Refer to the contact protection circuit in Figure 3 7 For AC loads install a metal oxide varistor MOV Relay Inductive Kickback Load Diode Figure 3 7 Relay contact protection circuit 3 5 Chapter 4 Specifications Typical for 25 C unless otherwise specified Specifications in italic text are guaranteed by design Output specifications Table 1 Output specifications Number of relays 24 Relay configuration 2 banks of 8 and 2 banks of 4 Contact configuration 24 Form C SPDT Normally Open Normally Closed and Common available at screw terminals Contact rating 6 A 240 VAC or 28 VDC resistive Contact resistance 100 milliohms max initial value Operate time 10 milliseconds max Release time 5 milliseconds max Vibration 10 to 55 Hz amplitude 1 5 mm Shock 10 G 11 milliseconds Dielectric isolation between relay open contact 300 VAC 50 6
7. and Interrupt immunity Criteria A Declaration of Conformity based on tests conducted by Chomerics Test Services Woburn MA 01801 USA in June 2005 Test records are outlined in Chomerics Test Report EM14221 05 We hereby declare that the equipment specified conforms to the above Directives and Standards Oot Carl Haapaoja Director of Quality Assurance Measurement Computing Corporation 10 Commerce Way Suite 1008 Norton Massachusetts 02766 508 946 5100 Fax 508 946 9500 E mail info mccdag com www mccdag com
8. computer 18 easy cccccesscesscessceseceseceecaeecaeeesececeeeeeeeeeeesseenseenseenaeenaes 1 3 Chapter 2 Installing the USB ERB24 ooi eccce cece cccetececctdereecsden eeSecccctecesct cetvecsceueegsut cect ecvccteceexecunedysctcuevadeccetedeccntes 2 1 What comes with your USB ERB24 shipment cccecccecsseescessceeeceseceseceseceaecseecaeeeseeeaeeeeeeeeceeseneeneeneenaes 2 1 Hardware sbs4218 casted I A E eaten ied tata hiny east E EIE ent Mas ethene A 2 1 Additional dOCumMemtatiOm sic sos manen ba ale enced leas ease gn E EPEE ss EENES POATE eth Mie bev TERS nee 2 1 Unpacking the USB ERB24 saroian ee e iE E EE E EEE EE EE EE T i EET iTe 2 2 Installing the software sneren doin eesi e i E A E i 2 2 Installing the USB ERB24 snein iaa o a ie e EE a EE S i iari EEEa ESEE aeS S EREE 2 2 Configuring the hardware switches cccccccesccssesssessceseesceeseesecesecsceeseeseceaecaeeceseceaecaeeeeesesseceaecaeeeecesecaaecaeeeeeaeeaeeneees 2 2 Connecting the external power supply eeceeceseeseessceseesseeseesecesecscesscesecesecseeseeesesecsaecaeeeesecsaecaeeeeaeceaecseeeeeeaecaeeneees 2 3 Connecting the USB ERB24 to your System snn nnana n a r a adala A a N aaie 2 4 Chapter 3 Functional Detallls ae a ar EE tone cde aa a eee dee tee revs aa ar aaaea Aaen aa Seed O raana NERA aaki 3 1 Internal components 2 222 820 E E A AEA ET E A A E 3 1 LSI DNET TE E AEEA EAE ER cts E EE E E A E E A 3 1 Invert non invert switch S1 P ll
9. to find more information The following electronic documents provide helpful information relevant to the operation of the USB ERB24 MCC s Specifications USB ERB24 the PDF version of the Specifications chapter in this guide is available on our web site at www mccdaq com pdfs USB ERB24 pdf MCC s Quick Start Guide is available on our web site at www mcecdag com PDFmanuals DAQ Software Quick Start pdf MCC s Guide to Signal Connections is available on our web site at www mcecdag com signals signals pdf MCC s Universal Library User s Guide is available on our web site at www mcecdag com PDFmanuals sm ul user guide pdf MCC s Universal Library Function Reference is available on our web site at www mcecdag com PDFmanuals sm ul functions pdf MCC s Universal Library for LabVIEW User s Guide is available on our web site at www mecdag com PDFmanuals SM UL LabVIEW pdf USB ERB24 User s Guide this document is also available on our web site at www mecdaq com P DFmanuals USB ERB24 pdf vi Chapter 1 Introducing the USB ERB24 Overview USB ERB24 features This user s guide contains all of the information you need to connect the USB ERB24 to your computer and to the external devices you want to control You can use the USB ERB24 in your control applications to switch on and off a variety of devices such as fans blowers pumps etc The USB ERB24 is a USB 2 0 full speed electromechanical r
10. 0 Hz 1 minute Dielectric isolation between PCB output lines SOOVAC 50 60 Hz 1 minute Life expectancy 10 million mechanical operations min Power on state S2 pull up Energized NO in contact with Common S2 pull down Not energized NC in contact to Common Relay control logic polarity User configurable per bank via switch S1 for invert or non invert default Switch settings for polarity can be read back via software through the USB bus Switch settings do not affect the power on condition Non invert mode when 0 is written or read back via the USB bus relays are not energized Invert mode when 0 is written or read back via the USB bus relays are energized Pull up pull down User configurable per bank via switch S2 for pull down default or pull up Switch settings can be read back via software Pull down will put the relays in non energized mode on power up Pull up will put the relays in energized mode on power up Power Table 2 Power specifications Parameter Conditions Specification USB 5 V input voltage range 4 75 V min to 5 25 V max USB 5 V supply current All modes of operation 10 mA max External power supply required MCC p n CB PWR 9V3A 9V 10 3A LED Voltage supervisor limits PWR Vext lt 6 0 V Vex gt 12 5 V PWR LED Off power fault 6 0 V lt Va lt 12 5V PWR LED On External power consumption
11. 24 is detected T a a USB ERB24 A USB ERB24 Windows has found new hardware and is locating the software for it When this balloon or dialog closes the installation is complete The USB LED should flash and then remain lit This indicates that communication is established between the USB ERB24 and your computer If you are running Windows XP and connect the USB ERB24 to a USB 1 1 port a balloon displays the message Your USB device can perform faster if you connect to a USB 2 0 port You can ignore this message The USB ERB24 will function properly when connected to a USB 1 1 port Caution Do not disconnect any device from the USB bus while the computer is communicating with the USB ERB24 or you may lose data and or your ability to communicate with the USB ERB24 If the LED turns off If the LED is lit but then turns off the computer has lost communication with the USB ERB24 To restore communication disconnect the USB cable from the computer and then reconnect it This should restore communication and the LED should turn back on 2 4 Chapter 3 Functional Details Internal components The USB ERB 24 has the following internal components as shown in Figure 3 1 Two 2 USB connectors Two 2 external power connectors USB LED PWR LED Jnvert non invert switch S1 sets the relay control logic polarity Pull up down switch S2 sets the relay power on state
12. Screw terminals USB IN POWER IN USB POWER OUT OUT ty d Invert non invert switch S1 Pull up pull down switch S2 PWR LED USB LED gt APHHSHSPIHNDHHOHSSHISSCHSOSSe v Screw terminals Figure 3 1 USB ERB24 components USB in connector The USB out connector is labeled USB IN on the board and enclosure The USB IN connector is a USB 2 0 full speed input connector that you connect to the USB port on your computer or USB hub connected to your computer This connector supports USB 1 1 USB 2 0 devices USB out connector The USB out connector is labeled USB OUT on the board and enclosure The USB OUT connector is a downstream hub output port intended for use with other MCC USB Series products only The USB hub is self powered and can provide 100 mA maximum current at 5 V For information on daisy chaining to other MCC USB Series products refer to Daisy chaining additional modules to the USB ERB08 on page 3 3 External power connectors The USB ERB24 has two external power connectors labeled POWER IN and POWER OUT on the enclosure The POWER IN connector is labeled PWR IN and P19 on the board and the POWER OUT connector is labeled PWR OUT and P20 on the board Connect the POWER IN connector to the supplied 9 V external power supply External power is required to operate the USB ERB24 The POWER OUT connector lets you power additional daisy chained MCC USB Series products from a single external power supply
13. USB ERB24 USB based 24 Relay Module User s Guide MEASUREMENT COMPUTING USB ERB24 USB based 24 Relay Module User s Guide A AN MEASUREMENT COMPUTING Document Revision 6 August 2006 Copyright 2006 Measurement Computing Corporation Your new Measurement Computing product comes with a fantastic extra Management committed to your satisfaction Refer to www mccdaq com execteam html for the names titles and contact information of each key executive at Measurement Computing Thank you for choosing a Measurement Computing product and congratulations You own the finest and you can now enjoy the protection of the most comprehensive warranties and unmatched phone tech support It s the embodiment of our two missions To offer the highest quality computer based data acquisition control and GPIB hardware and software available at the best possible price To offer our customers superior post sale support FREE Whether providing unrivaled telephone technical and sales support on our latest product offerings or continuing that same first rate support on older products and operating systems we re committed to you Lifetime warranty Every hardware product manufactured by Measurement Computing Corporation is warranted against defects in materials or workmanship for the life of the product Products found defective are repaired or replaced promptly Lifetime Harsh Environment Warranty We wil
14. Use the supplied cable or an equivalent full speed cables cable when daisy chaining to additional MCC USB Series products To daisy chain two or more USB ERB 24 relay boards follow the steps below This procedure assumes you already have one USB ERB24 connected to a computer and to an external power source The USB ERB24 already connected to the computer is referred to as the connected module The USB ERB24 you want to daisy chain to the connected board is referred to as the new module 3 3 USB ERB24 User s Guide Functional Details 1 Connect the POWER OUT connector on the connected module to the POWER IN connector on the new module This step is required only if you plan to daisy chain power to another module Connect the USB OUT connector on the connected module to the USB IN connector on the new module To add another module repeat steps 1 2 with the module you just connected now being the connected module A daisy chain example is shown in Figure 3 5 Note that the last board in the chain is supplied with external power USB port to POWER OUT gt USB IN to POWER IN CB PWR 9V3A supply to POWER IN x USB OUT N to USB IN USB OUT to USB IN CB PWR 9V3A supply to POWER IN Figure 3 5 Daisy chain connections Power limitations using multiple USB ERB24 devices When daisy chaining additional MCC USB Series products to the USB ERB24 you must ensure that you provide adequate power to each
15. board that you connect The USB ERB24 is powered with a 9 VDC nominal 3 0 A external power supply Voltage drop A drop in voltage occurs with each board connected in a daisy chain system The voltage drop between the power supply input and the daisy chain output is 0 5 V maximum Factor in this voltage drop when you configure a daisy chain system to ensure that at least 6 0 VDC is provided to the last board in the chain Relay configuration You can install a pull up or pull down resistor at the NO and NC terminals on each relay Note that the pull up resistors are tied to the 5 V power and should be considered when calculating the power budget The relay configuration is illustrated in the following schematic User installed pull up pull down resistor e 5 2 GND e 5 mt eGND J Buffer C NC i ji Screw Digital output driver terminals from the user 3 per relay 10k resistor Pull up pull down switch Figure 3 6 Relay configuration 3 4 USB ERB24 User s Guide Functional Details The relay contacts associated that are with each relay location are listed in Table 3 4 Table 3 4 Relay locations and associated contacts R35 R36 R41 R43 R45 R47 R49 R51 R87 R89 R91 R93 R96 Relays NO contact pull up to USB 5 V R98 R100 R102 R103 R105 R107 R109 R112 R114 R116 R118 pull down user installed R37 R40 R42 R44 R46 R48 R50 R52 R88 R90 R92 R94 R95
16. d with the 9 V 3 A external power supply CB PWR 9V3A You must connect the external power supply before connecting the USB connector to the USB ERB24 To connect the power supply to your USB ERB24 do the following 1 Connect the external power cord to the power connector labeled POWER IN on the USB ERB 24 enclosure PWR IN on the board Refer to Figure 3 1 for the location of this connector 2 Plug the AC adapter into a power outlet The PWR LED illuminates green when 9 V power is supplied to the USB ERB24 If the voltage supply is less than 6 0 V or more than 12 5 V the PWR LED does not light Do not connect external power to the POWER OUT connector The power connector labeled POWER OUT on the enclosure PWR OUT on the board is used to provide power to an additional MCC USB Series product If you connect the external power supply to the POWER OUT connector the USB ERB24 does not receive power and the PWR LED will not illuminate 2 3 USB ERB24 User s Guide Installing the USB ERB24 Connecting the USB ERB24 to your system To connect the USB ERB 24 to your system turn your computer on and connect the USB cable to a USB port on your computer or to an external USB hub that is connected to your computer The USB cable provides communication to the USB ERB24 When you connect the USB ERB 24 for the first time a Found New Hardware popup balloon Windows XP or dialog other Windows versions opens as the USB ERB
17. default switch S1 is configured for non invert see Figure 3 2 INVERT NON INVERT C_m A C_m B C CL s1 C CH Figure 3 2 Switch S1 default configuration The switch labeled A configures relays 1 through 8 the switch labeled B configures relays 9 through 16 the switch labeled CH configures relays 17 through 20 the switch labeled CL configures relays 21 through 24 NON INVERT when 0 is written or read back via the USB bus the relays are not energized INVERT when 0 is written or read back via the USB bus the relays are energized Switch settings do not affect the power on condition Use nstaCal to read the current logic setting for each module group 3 2 USB ERB24 User s Guide Functional Details Pull up pull down switch S2 The Pull up pull down switch S2 sets the power on state of each relay bank By default switch S2 is configured for pull down relays inactive at power up see Figure 3 3 PULL DOWN PULL UP m d A m 8 Com CL s2 _ CH Figure 3 3 Switch S2 default configuration The switch labeled A configures relays 1 through 8 the switch labeled B configures relays 9 through 16 the switch labeled CH configures relays 17 through 20 the switch labeled CL configures relays 21 through 24 PULL UP the relay energizes at power up regardless of the state of switch S1 PULL DOWN the relays are not energized at power up Use InstaCal to read the current power on state s
18. elay module supported under popular Microsoft Windows operating systems The USB ERB24 has 24 single pole double throw SPDT Form C electromechanical relays The digital I O lines on your MCC USB Series board directly control the relays on your USB ERB24 You connect your field wiring directly to the board s screw terminals The screw terminals provide three connections to each relay normally open NO normally closed NC and common C You can configure the logic polarity and power on state of each bank of relays with on board switches The relays are configurable as two banks of eight and two banks of four Switch settings can be read back with software The USB ERB 4 is powered by an external 9 V 3 A regulated power supply that is shipped with the device A USB cable is also included Power OUT and USB OUT connectors let you power and control multiple MCC USB Series boards from one external power source and one USB port in a daisy chain fashion Depending on your load requirement daisy chained boards may require a separate power supply The USB ERB 24 is enclosed in a rugged housing that you can mount on a DIN rail or on a bench Figure 1 1 Figure 1 1 USB ERB24 1 1 USB ERB24 User s Guide Introducing the USB ERB24 USB ERB24 block diagram USB ERB24 functions are illustrated in the block diagram shown here 9 0V External Power J Power Monitor J Power Regulator aa
19. etting for each module group Screw terminals Connect external devices to the relay contacts using the USB ERB 24 board s 24 sets of screw terminals Each relay has a normally closed NC common C and normally open NO contact Figure 3 4 shows the screw terminals on a typical relay channel NC C NO Figure 3 4 Typical relay channel Each screw terminal is identified with a label on the board and on the underside of the enclosure lid Caution Before connecting wires to the screw terminals turn off the power to the USB ERB24 and make sure that the signal wires do not contain live voltages Use 12 22 AWG wire for your signal connections Properly insulate the wires to avoid any short circuit to the other channels ground or other points on the board Caution Keep the length of stripped wire at a minimum to avoid a short to the enclosure When connecting your field wiring to the screw terminals use the strip gage on the terminal strip or strip to 5 5 7 0 mm 0 215 to 0 275 long Daisy chaining additional relays to the USB ERB24 Daisy chained MCC USB Series products connect to the USB bus through the high speed hub on the USB ERB24 You can daisy chain a maximum of four MCC USB Series products to a single USB 2 0 port or USB 1 1 port on your computer MCC USB Series products are USB 1 1 full speed devices that provide a signaling bit rate of 12 Mb s The throughput rate is shared by all devices connected to the USB bus
20. for the location of each switch on the USB ERB24 Configuring the hardware switches The USB ERB 24 has two on board switches that you set to configure the relay control logic polarity and the relay power on state Factory configured default settings are listed in Table 2 1 Refer to Figure 3 1 for the location of each switch on the USB ERB24 Table 2 1 Default switch configuration Board label Description Default setting INVERT NON INVERT Configures the relay control logic parity per relay bank for invert or Non invert 1 non invert logic Pull DOWN PULL UP Configures the relay power on state per relay bank for pull up or Pull down 2 pull down Each DIP switch sets the configuration of one relay group The DIP switch labeled A configures relays 1 to 8 the switch labeled B configures relays 9 to 16 the switch labeled CL configures relays 17 to 20 and the switch labeled CH configures relays 21 to 24 Figure 2 3 Configures relays 1 8 gt m __ A Configures relays 9 16 gt mm ___ B Configures relays17 20 gt mm CL Configures relays21 24 gt mm ICH Figure 2 3 Typical board switch Port A consists of relays 1 through 8 Port B consists of relays 9 through 16 Port CL consists of relays 17 through 20 and Port CH consists of relays 21 through 24 Remove from the enclosure to access the on board switches To change the configuration of a switch you must first remove the USB ERB24 f
21. l replace any product manufactured by Measurement Computing Corporation that is damaged even due to misuse for only 50 of the current list price I O boards face some tough operating conditions some more severe than the boards are designed to withstand When a board becomes damaged just return the unit with an order for its replacement at only 50 of the current list price We don t need to profit from your misfortune By the way we honor this warranty for any manufacturer s board that we have a replacement for 30 Day Money Back Guarantee You may return any Measurement Computing Corporation product within 30 days of purchase for a full refund of the price paid for the product being returned If you are not satisfied or chose the wrong product by mistake you do not have to keep it Please call for an RMA number first No credits or returns accepted without a copy of the original invoice Some software products are subject to a repackaging fee These warranties are in lieu of all other warranties expressed or implied including any implied warranty of merchantability or fitness for a particular application The remedies provided herein are the buyer s sole and exclusive remedies Neither Measurement Computing Corporation nor its employees shall be liable for any direct or indirect special incidental or consequential damage arising from the use of its products even if Measurement Computing Corporation has been notified in advance of the pos
22. lly Open contact 9 NC Relay 9 Normally Closed contact 9 C Relay 9 Common contact 9 NO Relay 9 Normally Open contact 10 NC Relay 10 Normally Closed contact 10 C Relay 10 Common contact 10 NO Relay 10 Normally Open contact 11 NC Relay 11 Normally Closed contact 11 C Relay 11 Common contact 11 NO Relay 11 Normally Open contact 12 NC Relay 12 Normally Closed contact 12 C Relay 12 Common contact 12 NO Relay 12 Normally Open contact 13 NC Relay 13 Normally Closed contact 13 C Relay 13 Common contact 13 NO Relay 13 Normally Open contact 14 NC Relay 14 Normally Closed contact 14 C Relay 14 Common contact 14 NO Relay 14 Normally Open contact 15 NC Relay 15 Normally Closed contact 15 C Relay 15 Common contact 15 NO Relay 15 Normally Open contact 16 NC Relay 16 Normally Closed contact 16 C Relay 16 Common contact 16 NO Relay 16 Normally Open contact 17 NC Relay 17 Normally Closed contact 17 C Relay 17 Common contact 17 NO Relay 17 Normally Open contact 18 NC Relay 18 Normally Closed contact 18 C Relay 18 Common contact 18 NO Relay 18 Normally Open contact 19 NC Relay 19 Normally Closed contact 19 C Relay 19 Common contact 19 NO Relay 19 Normally Open contact 20 NC Relay 20 Normally Closed contact 20 C Relay 20 Common contact 20 NO Relay 20 Normally Open contact 21 NC Relay 21 Normally Closed contact 21 C Relay 21 Common contact 21 NO Relay 21 Normally Open contact 22 NC Relay 22 Normally Closed contact 22 C Relay 22 Common contact
23. noina nni eae iin eh tiene en hensive Pacer Don Devers tne 4 3 iv USB ERB24 User s Guide Main connector Screw terminal pin out Preface About this User s Guide What you will learn from this user s guide This user s guide explains how to install configure and use the USB ERB 24 so that you get the most out of its electromechanical relay features This user s guide also refers you to related documents available on our web site and to technical support resources Conventions in this user s guide For more information on Text presented in a box signifies additional information and helpful hints related to the subject matter you are reading Caution Shaded caution statements present information to help you avoid injuring yourself and others damaging your hardware or losing your data lt tt gt Angle brackets that enclose numbers separated by a colon signify a range of numbers such as those assigned to registers bit settings etc bold text Bold text is used for the names of objects on the screen such as buttons text boxes and check boxes For example 1 Insert the disk or CD and click the OK button italic text Italic text is used for the names of manuals and help topic titles and to emphasize a word or phrase For example The J nstaCal installation procedure is explained in the Quick Start Guide Never touch the exposed pins or circuit connections on the board Where
24. nsent from Measurement Computing Corporation Life support devices systems are devices or systems which a are intended for surgical implantation into the body or b support or sustain life and whose failure to perform can be reasonably expected to result in injury Measurement Computing Corporation products are not designed with the components required and are not subject to the testing required to ensure a level of reliability suitable for the treatment and diagnosis of people iii Table of Contents Preface About this Usen s Guide 2 2 ricicsccntcdeccecacsheccancdecestecsusccneescecteansbedtepeeueeaiassasaadesceessent onctanetencdtanscdeentaeess vi What you will learn from this user s QUide cccceeseesceesceseceeeesecesecsaecseecaeecaeeseecaeeeaeesseseeeseeeeeeesaecnsecseeeaeeenes vi Conventions in this uset s guide x 2 cccsccccccacscceeedecenconcusdiceedesueseteesGedsedeccesescedcussashcvdcadeideedasdecduce ssa evevesasevedsces vi Where to find more information isnssssereici ninii i e E e a E EE iea E EEE a Eer sE aos vi Chapter 1 Introducing the USB ERB24 wwis scsecesscevcevscceveevascevedeecteveeeseceeveevascevedeescendevaecesveveecensedanceeddvecceervdeeetiyy 1 1 Overview USB ERB24 feature Siiner inen ii iiie Sods ice A EE E E A s 1 1 USB ERB24 Block diagrams a r a eea e Geet adtode poesia adi a a eaaa aa haga aa a e nani 1 2 SIIIN LARET R E E E A E EE A E A E E cette sic Seat 1 2 Connecting a USB ERB24 to your
25. p pull down switch S2 3 2 enore ra ONE ions So OEE A EOP SEAE OPSE SEEE NS EASES 3 3 Screw terminals soeren siant eE eL eai e AAEE EEE AOE EEE Ee ED e aE EA E E Ai 3 3 Daisy chaining additional relays to the USB ERB24 s ssesssesessseeesssesersrestesessteresseseestsessestestesersessreressesseene 3 3 Power limitations using multiple USB ERB24 devices ccccceeccescceseceeessecececaeeeseeeeecaeecaeeeneeeeeeeeeeereneensaes 3 4 Voltage drop es cicsccsvccdesissseces covecensciveescesttesd ds scescace cavesssessbeas dosaesseuaa AARE decthieaadudebucd secevsentesetded du di eae decebeeddecutlcssdecebeades 3 4 Relay confi Suratt ons 2 3 6 2 eee asso cee eR en ae eG Re EN N 3 4 Relay contact protection circuit for inductive loads eee seceseseceseeecseeseceeeseeecseesecsececsaesecsevsecaeeseseesaseecsaseesnenseeaeeas 3 5 Chapter 4 SPOCHICALIONS isicee A E cca chen ce hse tees nstist Sob edi E A A A 4 1 Output specifications AAA A E E E E E E E E E A 4 1 POE a a ie a ean ee ee E 4 1 External powerinputs s iei4i S A ESEE oa ea teks MIA Ded elte dente Aili E ek uted cdete eek 4 2 External power output scien hae heat esse eee ee ee SA R aA 4 2 USBiSpecitiGatonis e E posses eek gas Fabs ese Saad aS Bes ad AE EE 4 2 Relay contact pull up down Option cccccsccessesssessceeseeescesecesecesecaecsecaecaaecsaecaeecaeeeseceaeseeeseeeseeseesenseeneenaeenaes 4 3 Mechanical n cit acuni2ciis deeb iets ted eile ieee ee ei ae Al ees 4 3 Environinental no
26. rding installation of that software Please read this booklet completely before installing any software or hardware 2 1 USB ERB24 User s Guide Installing the USB ERB24 Unpacking the USB ERB24 As with any electronic device you should take care while handling to avoid damage from static electricity Before removing the USB ERB24 from its packaging ground yourself using a wrist strap or by simply touching the computer chassis or other grounded object to eliminate any stored static charge If your USB ERB 24 is damaged notify Measurement Computing Corporation immediately by phone fax or e mail For international customers contact your local distributor where you purchased the USB ERB24 Phone 508 946 5100 and follow the instructions for reaching Tech Support Fax 508 946 9500 to the attention of Tech Support Email techsupport mccdaq com Installing the software Refer to the Quick Start Guide for instructions on installing the software on the Measurement Computing Data Acquisition Software CD This booklet is available in PDF at www mccdag com PDFmanuals DA O Software Quick Start pdf Installing the USB ERB24 The USB ERB 24 has two on board switches that you set to configure the relay logic polarity and the resistor pull up down configuration Configure these switches before you connect the external power supply to the USB ERB24 Factory configured default settings are listed in Table 2 1 Refer to Figure 3 1
27. rom the enclosure 2 2 USB ERB24 User s Guide Installing the USB ERB24 Relay control logic polarity Configure the Invert non invert switch S1 to set the relay control logic polarity for each relay bank for invert or non invert By default this switch is shipped with all banks configured for non inverted logic as shown in Figure 2 4 INVERT NON INVERT Comm A B C CL s C__ CH Figure 2 4 Relay logic switch S1 NON INVERT mode when 0 is written or read back via the USB bus the relays are not energized INVERT mode when 0 is written or read back via the USB bus the relays are energized Switch settings for polarity can be read back via software through the USB bus Switch settings for S1 do not affect the power on condition Relay power on state Configure the Pull up pull down switch S2 to set the state of each relay bank at power up By default this product is shipped with the switch for all banks configured for pull down relays inactive at power up as shown in Figure 2 5 Switch settings can be read back via software through the USB bus PULL DOWN PULL UP m A om 1 8 CL s2 _ CH Figure 2 5 Resistor pull up down switch S2 PULL UP the relays are put into an energized state at power up regardless of the state of switch S1 PULL DOWN the relays are put into a non energized state at power up Connecting the external power supply Power to the USB ERB24 is provide
28. rs must plan for this drop to ensure the last module in the chain will receive at least 6 0 VDC USB specifications Table 5 USB specifications USB B connector Input USB device type USB 2 0 full speed Device compatibility USB 1 1 USB 2 0 USB A connector Downstream hub output port USB hub type Supports USB 2 0 high speed full speed and low speed operating points Self powered 100 mA max downstream VBUS capability Compatible products MCC USB Series devices USB cable type upstream and A B cable UL type AWM 2527 or equivalent min 24 AWG VBUS GND min downstream 28 AWG D D USB cable length 3 meters max 4 2 USB ERB24 User s Guide Specifications Relay contact pull up down option Table 6 Relay pull up pull down specifications R35 R36 R41 R43 R45 R47 R49 R51 R87 R89 R91 R93 R96 R98 Relays NO contact pull up to USB 5 V R100 R102 R103 R105 R107 R109 R112 R114 R116 R118 pull down user installed R37 R40 R42 R44 R46 R48 R50 R52 R88 R90 R92 R94 R95 R97 Relays NC contact pull up to USB 5 V R99 R101 R104 R106 R108 R110 R111 R113 R115 R117 pull down user installed Mechanical Table 7 Mechanical specifications Card dimensions 431 8 mm L x 121 mm W x 20 3 mm H 17 0 L x 4 8 W x 0 8 H Enclosure dimensions 482 6 mm L x 125 7 mm W x 58 9 mm H 19 00 L x 4 95 W x 2 32 H
29. sibility of such damages HM USB ERB24 doc ii Trademark and Copyright Information TracerDAQ Universal Library Harsh Environment Warranty Measurement Computing Corporation and the Measurement Computing logo are either trademarks or registered trademarks of Measurement Computing Corporation Windows Microsoft and Visual Studio are either trademarks or registered trademarks of Microsoft Corporation LabVIEW is a trademark of National Instruments CompactFlash is a registered trademark of SanDisk Corporation All other trademarks are the property of their respective owners Information furnished by Measurement Computing Corporation is believed to be accurate and reliable However no responsibility is assumed by Measurement Computing Corporation neither 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 copyrights of Measurement Computing Corporation 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 mechanical by photocopying recording or otherwise without the prior written permission of Measurement Computing Corporation Notice Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for use in life support systems and or devices without prior written co
30. ss drivers The HID class drivers ship with every copy of Windows that is designed to work with USB ports We use the Microsoft HID because it is a standard and its performance delivers full control and maximizes data transfer rates for your USB ERB24 No third party device driver is required You can connect the USB ERB 4 before or after you install the software and without powering down your computer first When you connect an HID to your system your computer automatically detects it and configures the necessary software You can connect multiple HID peripherals to your system using a USB hub You can connect your system to various devices using a standard four wire cable The USB connector replaces the serial and parallel port connectors with one standardized plug and port combination Data can flow two ways between a computer and peripheral over USB connections Chapter 2 Installing the USB ERB24 What comes with your USB ERB24 shipment The following items are shipped with the USB ERB24 Hardware USB ERB24 External power supply and cord CB PWR 9V3A 9 volt 3 amp DC power supply USB cable 2 meter length Additional documentation In addition to this hardware user s guide you should also receive the Quick Start Guide available in PDF at www mcecdag com PDFmanuals DAQ Software Quick Start pdf This booklet supplies a brief description of the software you received with your USB ERB24 and information rega

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