Manual - Spectrum Controls, Inc.
Contents
1. Address 15 0 T T T 1 I T T T 1 I T T T 1 I T T T O e 0 Channel 0 Output Data Word T T 1 T T T T 1 I T T T I T ij T O e 1 Channel 1 Output Data Word T T T 1 I T T T 1 I T T T 1 I T T T O e 2 Channel 2 Output Data Word T T T 1 I T T F 1 T T T T T T T T O e 3 Channel 3 Output Data Word Chapter 4 Using Your Output Module 25 Monitoring Each Output Channel Checking Each Output Channel s Configuration And Status The requested output data values are reflected in words 0 through 3 of the input image file addresses I e 0 through I e 3 Whenever a channel is disabled its data word is reset to zero Address 15 0 f T T 1 I T T T 1 I T T T 1 I T T T l e 0 Channel 0 Data Word T T T 1 I T T T 1 I T T 1 I T T T lie Channel 1 Data Word T T T 1 I T T T 1 I T T 1 I T T T l e 2 Channel 2 Data Word T T T 1 I T T 1 1 I T 1 I 1 T T l e 3 Channel 3 Data Word Words 4 through 7 of the input image file addresses I e 4 through I e 7 reflect the configuration and status of each channel Use the data provided in these status words to determine if the configuration data for any channel is valid Address 15 0 T T T 1 I T T T I T T T 1 I T T T l e 4 Channel 0 Status Word T T T 1 I T T T 1 I T T T I T T T l e 5 Channel 1 Status Word T T T 1 I T T T I T T T 1 I T T T l e 6 Channel 2 Status Word l e 7 TT Channel3 Status Word i Je toy Whenever a2. Your module will now limit the output signal as shown below 10 25 V tfr eposa a o eag pes neve 8 V Data Limit High Output Signal 2V Data Limit Low Note that whenever the requested output data values meet or attempt to exceed the output data limits your module sets bits 10 or 11 in the channel status word to indicate a limit error Note also that words 0 through 3 of the input image file addresses I e 0 through I e 3 reflect the requested output data values and are not truncated Chapter 4 Using Your Output Module 23 User Defined Scale For special applications the 1746sc INO4i and 1746sc INO4vi output modules let you define a custom data format This user defined scale is very similar to the proportional counts data format except that instead of converting the output data to an output signal using a previously defined scale 32 768 to 32 767 your module converts the output data using a scale defined by the values in output words 6 low limit of scale and 7 high limit of scale The high limit value must be greater than the low limit value for proper operation Also the difference between the low and high values should be greater than 1024 counts If the difference between the low and high values is less than 1024 counts unexpected results can occur especially at the extreme ends of the range You select the data format for each channel using that channel s configuration bits
3. Isolated Analog Use the following table to interpret the LEDs Table 12 LED definition If the module And the channel status LED is status LED is Then On On The channel is enabled Blinking One of the following channel errors occurred circuit open 4 20 mA outputs only signal is near or beyond end of range channel configured incorrectly Refer to the following section Troubleshooting Off Either your module is powering up or the channel is disabled Off Off Either the power is off the module is powering up or a module fault occurred Cycle power If the condition persists call your local distributor or Spectrum Controls for assistance I O error codes appear in word S 6 of the SLC processor status file The first two digits of the error code identify the slot in hexadecimal with the error The last two digits identify the I O error code in hexadecimal The error codes that apply to your module include in hexadecimal 50 5E e 71 watchdog error 90 94 For a description of the error codes refer to the Allen Bradley Advanced Programming Software APS Reference Manual Allen Bradley publication 1746 6 11 32 SLC 500 Isolated Analog Output Modules Troubleshooting Figure 7 Problem resolution flowchart Check LEDs on module y Module Status LED off E Module fault condition Check to see that module is seated
4. Over limit error Check the Spectrum Controls Bit 9 set 1 Operating temperature error Check the ambient temp Correct and Retry Chapter 6 Preventive Maintenance Safety Considerations Maintaining Your Module And Ensuring Safety Read this chapter to familiarize yourself with e preventive maintenance e safety considerations The National Fire Protection Association NFPA recommends maintenance procedures for electrical equipment Refer to article 70B of the NFPA for general safety related work practices The printed circuit boards of your module must be protected from dirt oil moisture and other airborne contaminants To protect these boards install the SLC 500 system in an enclosure suitable for its operating environment Keep the interior of the enclosure clean and whenever possible keep the enclosure door closed Also regularly inspect the terminal connections for tightness Loose connections may cause a malfunctioning of the SLC system or damage to the components WARNING POSSIBLE LOOSE CONNECTIONS Before inspecting connections always ensure that incoming power is OFF Failure to observe this precaution can cause personal injury and equipment damage Safety is always the most important consideration Actively think about the safety of yourself and others as well as the condition of your equipment The following are some things to consider
5. Owner s Guide 0300128 03 Rev D SLC 500 ISOLATED ANALOG QUTPUT MODULES Catalog Numbers 1746sc INO4i 1746sc INO4vi Sai SPECTRUM Cc O N T R O L S Important Notes 1 Please read all the information in this owner s guide before installing the product 2 The information in this owner s guide applies to hardware and firmware version 1 0 or later 3 This guide assumes that the reader has a full working knowledge of the relevant processor Notice The products and services described in this owner s guide are useful in a wide variety of applications Therefore the user and others responsible for applying the products and services described herein are responsible for determining their acceptability for each application While efforts have been made to provide accurate information within this owner s guide Spectrum Controls assumes no responsibility for the accuracy completeness or usefulness of the information herein Under no circumstances will Spectrum Controls be responsible or liable for any damages or losses including indirect or consequential damages or losses arising out of either the use of any information within this owner s guide or the use of any product or service referenced herein No patent liability is assumed by Spectrum Controls with respect to the use of any of the information products circuits programming or services referenced herein The information in this owner s guide is subje
6. 10 25V 10 25V 0 10 V 500 10250 0 50V 10 25V 0 5 V 500 5500 0 50 V 5 50 V 1 5 V 500 5500 0 50 V 5 50 V 0 20 mA 0 20500 0 0mA 20 5 mA 0 21 mA 0 21500 0 0mA 21 5 mA 4 20 mA 3500 20500 3 5mA 20 5 mA Scaled for PID 10 V 0 16383 10 V 10 V 0 10 V 0 16383 ov 10 V 0 5 V 0 16383 ov 5V 1 5 V 0 16383 1V 5V 0 20 mA 0 16383 0 mA 20 mA 0 21 mA 0 16383 0 mA 21 m 4 20 mA 0 16383 4mA 20 mA Proportional Counts 10 V 32768 32767 10 25V 10 25V 0 10 V 32768 32767 0 50V 10 25V 0 5 V 32768 32767 0 50 V 5 50 V 1 5 V 32768 32767 0 50 V 5 50 V 0 20 mA 32768 32767 0 0mA 20 5 mA 0 21 mA 32768 32767 0 0mA 21 5 mA 4 20 mA 32768 32767 3 5mA 20 5 mA 1746 NO4 10V 32768 32767 10V 10V Compatible 0 10 V 0 32767 ov 10 V 0 5 V 0 16384 ov 5V 1 5V 3277 16384 V 5 V 0 20 mA 0 31208 0 mA 20 mA 0 21 mA 0 32767 0 mA 21 mA 4 20 mA 6242 31208 4 MA 20 mA User Defined 10 V 10 25V 10 25V Scale 0 10 V 0 50V 10 25V 0 5 V 0 50 V 5 50 V 1 5 V See note 0 50 V 5 50 V 0 20 mA 0 0 mA 20 5 mA 0 21 mA 0 0 mA 21 5 mA 4 20 mA 35mA 20 5 mA Q Provides direct compatibility with the 1746 NO4 module For the user defined scale the data in output words 6 and 7 determine the count limits See the next subsection Optional Setting The Output Data Limits or User Defined Scale for information on the User Defined Scale data format Chapter 4 Using Your Output Module
7. Indicator Lights When the module status LED on your module is illuminated your module is receiving power Activating Devices When Troubleshooting Never reach into a machine to activate a device the machine may move unexpectedly Use a wooden stick 34 SLC 500 Isolated Analog Output Modules Standing Clear Of Machinery When troubleshooting a problem with any SLC 500 system have all personnel remain clear of machinery The problem may be intermittent and the machine may move unexpectedly Have someone ready to operate an emergency stop switch CAUTION POSSIBLE EQUIPMENT OPERATION Never reach into a machine to actuate a switch Also remove all electrical power at the main power disconnect switches before checking electrical connections or inputs outputs causing machine motion Failure to observe these precautions can cause personal injury or equipment damage Safety Circuits Circuits installed on machinery for safety reasons like over travel limit switches stop push buttons and interlocks should always be hard wired to the master control relay These circuits should also be wired in series so that when any one circuit opens the master control relay is de energized thereby removing power Never modify these circuits to defeat their function Serious injury or equipment damage may result Refer to your system s Installation amp Operation Manual for more information Getting Technical Assist
8. Not used gt Current output ch 2 gt Analog ground ch 2 gt Chassis ground gt Not used gt Current output ch 3 gt Analog ground ch 3 gt 24 Vdc external gt Ground external gt Voltage output ch 0 gt Current output ch 0 gt Analog ground ch 0 gt Chassis ground gt Voltage output ch 1 gt Current output ch 1 gt Analog ground ch 1 gt Voltage output ch 2 gt Current output ch 2 gt Analog ground ch 2 gt Chassis ground gt Voltage output ch 3 gt Current output ch 3 gt Analog ground ch 3 gt 24 Vdc external gt Ground external gt 0 load 2 oa 3 4 5 load 6 A 7 Shielded twisted pair cable with shield 8 connected to ground only at one end 9 10 To guard against electrostatic damage 11 and improve module grounding 12 connect a chassis ground pin directly 13 to a rack mounting bolt 14 TI Ext pwr 15 H supply i A 24 Vdc power supply if external power is selected 0 m load 2 oa 3 4 9 load 6 A 7 Shielded twisted pair cable with shield 8 connected to ground only at one end 9 10 To guard against electrostatic damage 11 and improve module grounding 12 connect a chassis ground pin directly 13
9. SZ SPECTRUM Cc O N T R O L S
10. 21 Optional Setting The Output Data Limits or User Defined Scale Reset Output Or Hold Last Value On Fault configuration bits 7 and 15 Use this bit to select how your module responds to a fault e If you set this bit to 1 your module holds the output signal at its last value when it detects a fault If you set this bit to 0 your module resets the output signal to the power up setting 0 V or 0 mA when it detects a fault Words 6 and 7 of the output image file addresses O e 6 and O e 7 let you define either the low and high values of the output data limits or the low and high values of the user defined scale if the User Defined Scale data format is selected Address 15 0 0 e 6 Low Value of Output Data Limit or User Defined Scale OG T T O e 7 High Value of Output Data Limit or User Defined Scale If you do not want to use user defined scaling or output data limiting set output words 6 and 7 to zero Setting output words 6 and 7 to zero disables output data limiting and invalidates user defined scaling Because they share the same output words you cannot use output data limiting with the User Defined Scale data format Important The values in output words 6 and 7 apply to all four channels If you want to use user defined scaling or output data limiting you must set all four channels to the same data format Output Data Limits For added safety the 1746sc INO4i and 1746sc
11. INO4vi output modules let you define limits for the values in the output data words of all four channels These data limits in turn limit the output signals that your module provides When an output data word exceeds the data limit the output value is truncated to the limit You can use output data limiting to prevent PID loops from exceeding safety limits to prevent operators from inadvertently setting incorrect values etc To properly enable output data limiting the low and high output limits output words 6 and 7 respectively musts be non zero and non equal SLC 500 Isolated Analog Output Modules and the low limit output word 6 must be lower than the high limit output word 7 Example Suppose you have four valves with a 10 V operating range and you want to use the Engineering Units data format For this application you would use the following bit settings for the channel configuration bytes output words 4 and 5 Address 15 0 O e 4 0 0 00 0 0 0 1 010 00 010 0 O e 5 010 00 0 0 0 1 0 0 00 0 0 01 Suppose also that you would like to set the output limits to 2 V and 8 V After entering the above bit settings for output words 4 and 5 you would enter the following for output words 6 and 7 Address 15 0 O e 6 1111111 1 0 0 0 010 111 010 0 O e 7 0 0 0 1 1111111 0 1101 0 0 0 00
12. a device in the preferred way open the output circuit as close as possible to the motion causing device Example If you have a relay coil that in turn energizes a motor starter and you cannot disconnect the motor wires open the circuit at a point between the motor starter and the relay contact WARNING POSSIBLE UNEXPECTED MACHINE MOTION During all testing always disconnect all devices that when energized might cause machine motion Failure to observe this precaution can cause equipment damage or personal injury When you apply power to the system your module s status LED should illuminate indicating that your module is receiving power and has completed its onboard self test If the LED does not illuminate after several seconds your module is not functional Discontinue testing until you can get the LED to illuminate The most probable reasons for the LED not illuminating are The SLC 500 system is not receiving power from its power supply The rest of the SLC 500 system is not receiving power e The rack slot where your module is located is defective e Your module is defective Chapter 5 Testing Your Module 31 Interpreting The LED Indicators Interpreting I O Error Codes Your output module has 5 LEDs 4 channel status LEDs numbered 0 3 for channels 0 3 respectively and I module status LED Figure 6 LED block OUTPUT Channel CI Status MB Module Status L
13. but the terminals aren t providing an output signal the 24 Vdc power source backplane or external may not be providing enough current 250 mA You can prevent many potential problems by simply inspecting your analog module 1 Ensure that the external 24 Vdc power switch SW1 located in the bottom corner of the module s large circuit board is set properly e With the switch in the RACK position the module draws all its power from the backplane of the SLC system e With the switch in the EXT position the module draws its 24 Vdc power from an external power source however the module still draws its 5 Vdc power from the backplane 2 Ensure that all wire connections are correct and secure and that no wires are missing or broken Refer to Chapter 2 Installing And Wiring Your Module for more information 3 Ensure that the shield for the cable used to wire your module is properly grounded 4 Ensure that the removable terminal block on your module is secure 30 SLC 500 Isolated Analog Output Modules Disconnecting Prime Movers Powering Up Before testing your module ensure that machine motion will not occur e Disconnect motor wires at the motor starter or the motor itself This lets you test the operation of the starter coil verifying that the output circuit is wired correctly and functioning e Disconnect solenoids by disengaging the solenoid valves leaving the coils connected If you cannot disconnect
14. described in the previous subsection Configuring Each Output Channel The following equations show you how to convert user defined scale units or any type of units to engineering units and vice versa S U U X AS AU S D S Sa x AU AS U w where S signal value in engineering units such as psi Siow low limit of signal value S sign high limit of signal value AS Sign Sow D data value user defined scale low value of user defined scale nich high value of user defined scale igh AU U high U ow Example Suppose you have a valve with a 4 20 mA range and you want your scale to go from 100 to 9999 counts For a 4 20 mA output with user defined scaling your module sets the signal limits to 3 5 mA and 20 5 mA see Table 14 After entering 100 and 9999 into output words 6 and 7 respectively the relationship between data value counts and output signal would be as follows 24 SLC 500 Isolated Analog Output Modules Controlling Each Output Channel s Signal Figure 5 Example relationship between output signal and channel data Data Value 9999 100 Signal Value 3 5 mA 20 5 mA In the preceding example SEA U 100 Sign 20 5 U sign 9999 AS 17 AU 9899 Output words 0 through 3 determine the output signal levels for channels 0 through 3 respectively The output signal level depends on the output range and data format selected
15. renerne nerne 3 Table 4 Physical specifications srerronrrnnonrrnnonnrnnrnnrnnrnnrnnrrnrrnrrnrnnnrnrnnnrn nn 3 Table 5 Environmental Specifications ccccceeeceeeeeceeeseeeeeeeeseeeeeeeeeeaees 4 Table 6 Backplane current consumed cc eccceceeeeeeeeeeeeeeeeaeeeeseeeeeeeetees 7 Table 7 Channel update time channels already enabled 0008 14 Table 8 Output module ID code 00 00 cee cece seeceesseeeceseeeeeseeeeeseeeessseeeeseeees 15 Table 9 Channel configuration word details Output Words 4 and 5 18 Table 10 Data format definitions u u u essensen eneerer renen eres kn ren kreere 20 Table 11 Channel status word details Input Words 4 through 7 26 Table 12 LED definition css cnde eae cieg ince addere senket 31 Figure 1 Ferrite EMI suppressor for CE compliance ccccceeeeeee 11 Figure 2 Wiring diagrams showing differential outputs ceeee 12 Figure 3 Output and input SCANS cccceceeseeeeeeeeeeceseeeeeeceaeeseeeeeneeeneeeeaes 13 Figure 4 Output and input words cceccceeeeceeeeeeeeeeeeceeeeeaeeseeeeseeesaeeeas 16 Figure 5 Example relationship between output signal and channel data 24 Figure GLED Block ea nates Matte Daa AAAA RETE 31 Figure 7 Problem resolution flowchart c cceesceseeeeeeseeeseeeeeeeeseeeeeaes 32 Who Should Use This Guide What This Guide Covers Related Allen Bradley Docum
16. s performance or cause permanent damage Determining Power Requirements The backplane of the SLC 500 system can provide both 5 Vdc and 24 Vdc power The following table shows the maximum current consumed by your module when using these power sources Chapter 2 Installing And Wiring Your Module 7 Setting The DIP Switch Table 6 Backplane current consumed 24 Vdc Catalog Number 5 Vdc w o ext supply w ext supply 1746 sc INO4i 120 mA 250 mA 0 mA 1746sc INO4vi 120 mA 250 mA 0 mA The 1746sc INO4i and 1746sc INO4vi output modules can use an external 24 Vdc power supply to reduce backplane loading To use an external 24 Vdc power supply you must set your module s DIP switch as indicated in the following subsection Use Table 6 to calculate the total load on the system power supply For more information see the Allen Bradley system Installation and Operation Manual The 1746sc INO4i and 1746sc INO4vi output modules have an external 24 Vdc power switch SW1 giving you the option of using an external power supply e With the switch in the RACK position the module draws all its power from the backplane of the SLC system e With the switch in the EXT position the module draws its 24 Vdc power from an external power source however the module still draws its 5 Vdc power from the backplane The switch SW1 is located in the bottom corner of the module s large circuit board RACK el ia e EXT
17. setting bit values in each configuration word Output words 4 and 5 of the output image file addresses O e 4 and O e 5 configure channels 0 1 and 2 3 respectively 15 Channel 1C onfigurati on B yte Channe 10C onfigurati on Byte Channel 3 Configuration Byte Channel 2 Configuration Byte A detailed explanation appears in the following table Table 9 Channel configuration word details Output Words 4 and 5 O e 4 and O e 5 To select Use these bit settings For Channel 1 and 3 For Channel 0 and 2 Bit Output channel disable Output channel enable 15 141 13 12 11 10 5 4 3 2 10 Vdc output range INO4vi only 1 5 Vdc output range INO4vi only 0 5 Vdc output range INO4vi only 0 10 Vdc output range INO4vi only 0 20 mA output range 4 20 mA output range 0 21 mA output range Invalid a a a OOOO a 4 O0D lc Ht oOo a O O O lt O a a OOOO a 4 O0D 00 a O O O lt O Engineering units Scaled for PID Proportional counts 1746 NO4 compatible format User defined scale Invalid Invalid Invalid Reset output on fault Hold last value on fault a a gt gt gt a gt oOo 00 a a oOo gt OoO O 32 2 in DOG oO a oo 00 a aooo
18. status bit 13 This bit is set to one whenever the output data meets or attempts to exceed the minimum count limit defined by the data format and output range selected see Table 11 This bit is reset to zero when the output data rises above the minimum count limit Non Fatal Channel Error status bit 14 This bit is set to one whenever your module detects a recoverable channel error such as an invalid configuration word or an operating temperature error see above or while the SLC 500 processor is resetting This bit is reset to zero when the error no longer exists 28 SLC 500 Isolated Analog Output Modules Fatal Channel Error status bit 15 This bit is set to one whenever your module detects a non recoverable channel error such as a software power up failure due to corrupt hardware or malfunctioning software You may be able to recover from this type of error by resetting the SLC 500 processor or cycling power to your module Chapter 5 Inspecting Your Module Testing Your Module Read this chapter to prevent potential problems This chapter covers e inspecting your module e disconnecting prime movers e powering up e interpreting the LED indicators e interpreting I O error codes e troubleshooting Before testing your module test your SLC 500 system using the procedures described in your Allen Bradley system Installation amp Operation Manual Important If your module appears to be functioning
19. the channel update time by disabling unused channels as shown in the following table Table 7 Channel update time channels already enabled of ch enabled Time Current output 24 3 ms typical 27 3 30 7 33 7 Rony 24 3 26 9 30 1 32 7 Voltage output INO4vi only OND When the module must enable a disabled channel add 1 2 ms to the time shown For the fastest possible channel update time enable only one channel About once a minute if no update is occurring your module performs a temperature calibration During this time your module cannot convert the channel data received from the processor to an analog output signal at the terminals The temperature calibration takes about 56 2 ms Whenever the output mode is changed usually on module start up the power supplied to the isolated channels has to go through a power cycle affecting all 4 channels During this time your module cannot convert channel data from the processor to analog output signals at the terminals The power cycle takes about 5 2 seconds By writing to the status file in the modular SLC processor you can disable any chassis slot Refer to your SLC programming manual for the slot disable enable procedure CAUTION POSSIBLE EQUIPMENT OPERATION Always understand the implications of disabling a module before using the slot disable feature Failure to observe this precaution can cause unintended equipment oper
20. the negative terminal and analog common during normal differential operation Common mode voltage range The largest voltage difference allowed between either the positive or negative terminal and analog common during normal differential operation Configuration word Contains the channel configuration information needed by the module to configure and operate each channel Information is written to the configuration word through the logic supplied in your ladder program D A Refers to digital to analog conversion The conversion produces an analog output signal whose magnitude is proportional to the digital value dB decibel A logarithmic measure of the ratio of two signal levels Data scaling The data format that you select to define the logical increments of the channel data word Data word A 16 bit integer that represents the value of the analog output channel The channel data word is valid only when the channel is enabled and there are no channel errors Differential operation The difference in voltage between a channel s positive and negative terminals Effective resolution The number of bits in the channel data word that do not vary due to noise Full scale error gain error The difference in slope between the actual and ideal analog transfer functions Full scale range FSR The difference between the maximum and minimum specified analog values Gain drift The change in full
21. 0 0 Chapter 4 Using Your Output Module 19 Output Channel Enable configuration bits 0 and 8 Use this bit to enable or disable a channel To minimize update times disable any unused channels When you set the channel enable bit to one the module reads the configuration word Before accepting any new data as valid verify that the status word described in the last subsection of this chapter reflects the changes you made While the channel enable bit is set to zero the channel data word and status word are also set to zero When you reset the channel enable bit to one the channel data word remains set to zero until your module updates the channel status word Output Range configuration bits 1 3 and 9 11 Use this bit field to configure the channel for the type of output device you have connected to the module Data Format configuration bits 4 6 and 12 14 Use this bit field to select one of the following formats engineering units mV or nA e scaled for PID works with the SLC PID instruction e proportional counts two s complement binary e 1746 NO4 compatible format the format used by the 1746 NO4 e user defined scale These data formats are defined in the following table SLC 500 Isolated Analog Output Modules Table 10 Data format definitions Selected Data Value counts Corresponding Signal Data Format Output Range Min Max Min Max Engineering Units 10 V 10250 10250
22. Modular Hardware Style Programmable Controllers 1747 NI001 Installation amp Operation Manual for Fixed Hardware Style Programmable Controllers 1747 6 4 Allen Bradley Advanced Programming Software APS User Manual 1747 6 11 Allen Bradley Advanced Programming Software APS Reference Manual 1747 6 3 Getting Started Guide for Advanced Programming Software APS ABT 1747 TSG001 SLC 500 Software Programmers s Quick Reference Guide 1747 NP002 Allen Bradley HHT Hand Held Terminal User Manual 1747 NM009 Getting Started Guide for HHT Hand Held Terminal D499 Allen Bradley Publication Index AG 7 1 Allen Bradley Industrial Automation Glossary To obtain a copy of any of the Allen Bradley documents listed contact your local Allen Bradley office or distributor You should understand the following terms and abbreviations before using this guide For the definitions of terms not listed here refer to Allen Bradley s Industrial Automation Glossary Publication AG 7 1 Attenuation The reduction in magnitude of a signal as it passes through a system The opposite of gain Channel Refers to one of the sets of signal interfaces available on a module s terminal block Channel update time For analog outputs the time required for the channel to convert the data received from the processor to analog output signals at the terminals Chassis See rack Preface v Common mode voltage The voltage difference between
23. SWL 8 SLC 500 Isolated Analog Output Modules Selecting A Rack Slot Inserting Your Module Into The Rack Two factors determine where you should install your module in the rack ambient temperature and electrical noise When selecting a slot for your module try to position your module inarack close to the bottom of the enclosure where the air is cooler away from modules that generate significant heat such as 32 point input output modules e ina slot away from ac or high voltage dc modules hard contact switches relays and ac motor drives e away from the rack power supply if using a modular system Remember that in a modular system the processor always occupies the first slot of the rack CAUTION POSSIBLE EQUIPMENT OPERATION Before installing or removing your module always disconnect power from the SLC 500 system and from any other source to the module in other words don t hot swap your module and disconnect any devices wired to the module Failure to observe this precaution can cause unintended equipment operation and damage When inserting your module into the rack you do not need to remove the supplied 16 position terminal block from the module If however you do remove the terminal block apply the supplied write on label to the terminal block and use the write on label to identify your module s location To remove the terminal block unscrew the two retaining scr
24. These modules even feature onboard temperature compensation to maintain their accuracy with fluctuating ambient temperatures which is important for crowded control cabinets Reduced System Costs Because isolation is built into these modules you can improve system accuracy while saving hundreds of dollars on system installation costs Expensive external isolation blocks are simply not required They also SLC 500 Isolated Analog Output Modules Detailed Specifications provide a single slot solution for applications requiring up to four mixed analog outputs so you don t have to buy more I O than you need State of the Art Performance These modules incorporate proprietary Allen Bradley technology so they operate and perform like the latest Allen Bradley products They also provide 16 bits of resolution user programmable range settings continuous temperature compensation no field calibration software configuration programmable output limits and programmable safe states in case of a fault Table 2 Electrical specifications module Backplane Current Consumption maximum 1746sc INO4i 120 mA 5 Vdc 250 mA 24 Vdc 1746sc INO4vi 120 mA 5 Vdc 250 mA 24 Vdc Backplane Power Consumption typical 0 6 W Number Of Channels 4 differential individually isolated I O Chassis Location Any 1746 I O module slot except slot 0 A D Conversion Method Sigma Delta Calibration Factory calibrated Temperature compensation onc
25. ance Declaration of Conformity If you need technical assistance please review the information in Chapter 5 Testing Your Module before calling your local distributor of Spectrum Controls Note that your module contains electronic components which are susceptible to damage from electrostatic discharge ESD An electrostatic charge can accumulate on the surface of ordinary plastic wrapping or cushioning material In the unlikely event that the module should need to be returned to Spectrum Controls please ensure that the unit is enclosed in approved ESD packaging such as static shielding metallized bag or black conductive container Spectrum Controls reserves the right to void the warranty on any unit that is improperly packaged for shipment For further information or assistance please contact your local distributor or call Spectrum Controls Customer Satisfaction department at 425 746 9481 from 8 00 A M to 5 00 P M Pacific Time Available upon request TheEN COMPASS logo and SLC 500 are trademarks of Allen Bradley Company Inc Copyright 1997 2004 Spectrum Controls Inc All rights reserved Printed in U S A Specifications subject to change without notice Publication 0300128 03 Rev D May 2004 Corporate H eadquarters Spectrum C ontrols Inc P O Box 5533 Bellevue Washington 98006 Fax 425 641 9473 Te 425 746 9481 Web Site http www industry net spectrum controls E mail spectrum spectrumctis com
26. ation When you disable an output module s slot the module holds its outputs in their last state When you re enable the output module s slot the data that is in the processor image table is converted to an analog output signal during the next scan Slot disabling only affects enabled channels Chapter 4 Entering Your Module s ID Code Using Your Output Module Read this chapter to enter your output module s ID code e configure each output channel e set the output data limits or user defined scale optional control each output channel s signal monitor each output channel check each output channel s configuration and status To use your module you need e programming equipment e Allen Bradley Advanced Programming Software APS For help with APS see the Getting Started Guide for APS Before using your module you must configure the slot your module is in by entering your module s ID code in APS When using APS version 6 or later simply select your module from the list of modules on the system I O configuration display to automatically enter the ID code With earlier versions of APS 4 through 5 you must manually enter the ID code To enter your module s ID code select other from the list of modules on the APS system I O configuration display and enter your module s ID code at the prompt The module ID code for your module is Table 8 Output module ID code Catalog Number Modu
27. ble cut the drain wire and foil shield back to the cable and apply shrink wrap Insulation Black Wire Clear Wire 6 Connect the wires to the terminal block and field device as shown in the following figures and table The recommended maximum torque is 5 in lb 0 565 Nm for all terminal screws To guard against electrostatic damage and improve chassis grounding connect one of the shield pins on the terminal block of your module to the chassis itself Important For CE compliance Ferrite EMI Suppressors are needed on each channel s terminal block connection Apply the suppressor close to the module terminal block as shown below A Steward Part 28B2024 0A0 or equivalent is recommended The Steward 28B2024 OAO has an impedance of 157 Q at 25 MHz 256 at 100 MHz and can accommodate one turn of wire Figure 1 Ferrite EMI suppressor for CE compliance Module 7 Repeat steps 1 through 6 for each channel on your module A system may malfunction due to a change in its operating environment After installing and wiring your module check system operation See the Allen Bradley system Installation and Operation Manual for more information 12 SLC 500 Isolated Analog Output Modules Figure 2 Wiring diagrams showing differential outputs INO4i INO4vi Not used gt Current output ch 0 gt Analog ground ch 0 gt Chassis ground gt Not used gt Current output ch 1 gt Analog ground ch 1 gt
28. channel is disabled its status word is set to zero A detailed explanation appears in Table 12 26 SLC 500 Isolated Analog Output Modules Table 11 Channel status word details Input Words 4 through 7 l e 4 through I e 7 These bit settings in the status word Indicate this Bit 15 14 13 12 11 10 Output channel disabled Output channel enabled O O O o o 0 O O O 1 5 Vdc output range 0 5 Vdc output range 0 10 Vdc output range 0 20 mA output range 4 20 mA output range 0 21 mA output range O O o o Oo O O O O Engineering units Scaled for PID Proportional counts 1746 NO4 format User defined scale Reset output on fault Hold last value on fault No output data limiting Output data limiting No error Operating temperature error No error Over limit error No error Under limit error No error Over range error No error Under range error No error Non fatal channel error No error Fatal channel error Chapter 4 Using Your Output Module 27 The first 8 status bits reflect the settings in the channel configuration word The remaining status bits flag the various errors that the module can detect Output Data Limiting Enabled status bit 8 This bit is set to one whenever output data limiting is properly enabled To prop
29. ct to change without notice Limited Warranty Spectrum Controls warrants that its products are free from defects in material and workmanship under normal use and service as described in Spectrum Controls literature covering this product for a period of 1 year The obligations of Spectrum Controls under this warranty are limited to replacing or repairing at its option at its factory or facility any product which shall in the applicable period after shipment be returned to the Spectrum Controls facility transportation charges prepaid and which after examination is determined to the satisfaction of Spectrum Controls to be thus defective This warranty shall not apply to any such equipment which shall have been repaired or altered except by Spectrum Controls or which shall have been subject to misuse neglect or accident In no case shall the liability of Spectrum Controls exceed the purchase price The aforementioned provisions do not extend the original warranty period of any product which has either been repaired or replaced by Spectrum Controls Preface Overview And Specifications Installing And Wiring Your Module Things To Consider Before Using Your Module Using Your Output Module Testing Your Module Table Of Contents Who Should Use This Guide ccccccecceeeeceeeeeeeeeeeeeseeeeeeeeeeeeseeeeseesaees iii What This Guide Covers rrrrnrrnnrnnnnrnnnrnnnnvnnnnvnnnvnnnnvnnnvnnnnvnnnvenenennnvenenrennn
30. e a minute Opto Electrical Isolation 750 Vdc channel to channel 750 Vdc field wiring to backplane Module ID Code 1746sc INO4i 3521 1746sc INO4vi 3519 Thermal Dissipation 4 5 W maximum Chapter 1 Overview And Specifications 3 Table 3 Electrical specifications outputs Output Current Ranges selectable for each channel Output Voltage Ranges INO4vi only selectable for each channel SLC Communication Formats selectable for each channel Output Impedance Current Outputs Voltage Outputs INO4vi only Load Range Current Outputs Voltage Outputs INO4vi only Max Current Voltage Mode INI4vi only Output Step Response Time Channel Update Time maximum Output Resolution Current Outputs Voltage Outputs INO4vi only Overall Accuracy Current Outputs Voltage Outputs INO4vi only 4 to 20 mA 0 to 20 mA 0 to 21 mA 10 to 10 Vdc 0 to 10 Vdc 0 to 5 Vdc 1 to 5 Vdc Scaled engineering units Scaled for PID Proportional counts 1746 NO4 format User defined scale Greater than 1 MQ Less than 1 0 Q 0 to 500 Q 1 kQ and greater 10mA 1 ms 0 95 of full scale 33 7 ms for all 4 channels in parallel 16 bit 366 nA count 320 uV count 0 08 of full scale 25 C 0 15 of full scale 60 C 0 08 of full scale 25 C 0 35 of full scale 60 C Table 4 Physical specifications LED Indicators Recommended Cable Wire Size maximum Terminal Block Four green channel sta
31. ee iii Related Allen Bradley Documents W W u u sseeeeve erne renere en ren tere nerne ner iii Terms amp Abbreviations You Should Know cccceececeeeeeeeeeteeseeeeeteeeaees iv Chapter 1 General Features And Benefits mnnnnannnnnvrnonvonorrnrnrnnonvnnnronrnrernrnnrnrernrnennn 1 Detailed Specifications arrranrrnnnvnnnnrnnnvnnn renn nrnnnnnnnnennnnnnennnrnrenerenrnrennnsenn 2 Chapter 2 Avoiding Electrostatic Damage rrnnrennnnvrnnenvrnnnnnrnnrnnrnnrnnrnnrrnrrnrrnrrnrenrnnnennn 6 Determining Power Requirements rrnrnnrnnnnnvnnnonrnnnnnrrnnnnrrnnnnnrnnrnnrnnrnnrnerenn 6 Setting The DIP Switch eesrnannrnnnrnnnrrnnnrnnnnrnnnvnnnnvnannvnnnvnnnnenenvnnnvensnrennrenenn 7 Selecting A Rack Sl t sirieni dansk r e dei vied 8 Inserting Your Module Into The Rack mrnnrnnnnnvnnnnnvrnnnnvrnnnnvrnnnnnrnnnnnrnnsnnrrnnnn 8 Wiring Your Module ES EUD aa DEDE a RENE 10 Chapter 3 How The Processor Communicates With Your Module n 13 Channel Update Time rannnnnnvnnnvnnnnvonnnonnnvnnnnennnvennnennnvenerenenrenenrennresensennnne 13 Temperature Calibration Time mranrnnnvrnonvnnonvnnnvonnnnnnnvnnrrrnnnrnnnnrennrnennrennnnn 14 Output Mode Change Time INO4vi only ecceeeceeeeeeeeeeeeteesteeeeteetaes 14 Your Module s Response To Slot Disabling rernrnrnrnnrrrnrnrnnnnrnnnrrnnnrennnn 14 Chapter 4 Entering Your Module s ID Code nnnrnnnnrnnnvnnnnnnnnvnnonvnrnrernrenrnrnnrrrennressrne
32. ents Preface Read this preface to familiarize yourself with the rest of the owner s guide This preface covers e who should use this guide e what this guide covers e related Allen Bradley documents terms amp abbreviations you should know Use this guide if you design install program or maintain a control system that uses Allen Bradley Small Logic Controllers You should have a basic understanding of SLC 500 products You should also understand electronic process control and the ladder program instructions required to generate the electronic signals that control your application If you do not contact your local Allen Bradley representative for the proper training before using these products This guide covers the 1746sc INO4i and 1746sc INO4vi isolated analog output modules It contains the information you need to install wire use and maintain these modules It also provides diagnostic and troubleshooting help should the need arise Table 1 lists several Allen Bradley documents that may help you as you use these products iv SLC 500 Isolated Analog Output Modules Terms amp Abbreviations You Should Know Table 1 Related Allen Bradley documents Allen Bradley Doc No Title 1747 2 30 SLC 500 System Overview SGI 1 1 Application Considerations for Solid State Controls 1770 41 Allen Bradley Programmable Controller Grounding and Wiring Guidelines 1747 6 2 Installation amp Operation Manual for
33. erly enable output data limiting the low and high output limits output words 6 and 7 respectively musts be non zero and non equal and the low limit output word 6 must be lower than the high limit output word 7 See Optional Setting The Output Data Limits or User Defined Scale earlier in this chapter for more information Operating Temperature Error status bit 9 This bit is set to one whenever the operating temperature exceeds the specified range 0 to 60 C This bit is reset to zero when the operating temperature returns to the specified range Over Limit Error status bit 10 This bit is set to one whenever the output data meets or attempts to exceed the output data limit in output word 7 if output data limiting is properly enabled This bit is reset to zero when the output data falls below the output data limit in output word 7 Under Limit Error status bit 11 This bit is set to one whenever the output data meets or attempts to exceed the output data limit in output word 6 if output data limiting is properly enabled This bit is reset to zero when the output data rises above the output data limit in output word 6 Over Range Error status bit 12 This bit is set to one whenever the output data meets or attempts to exceed the maximum count limit defined by the data format and output range selected see Table 11 This bit is reset to zero when the output data falls below the maximum count limit Under Range Error
34. ews at the top and bottom of the terminal block and using a screwdriver or needle nose pliers carefully pry the terminal block loose Chapter 2 Installing And Wiring Your Module 9 To insert your module into the rack follow these steps 1 Align the circuit board of your module with the card guides at the top and bottom of the chassis aq 0l sm N SL SY SY SW N W ENE oO N N N N N Ww SSN Ys Wy gt N N N NI N P ao 000 2 Slide your module into the chassis until both top and bottom retaining clips are secure Apply firm even pressure on your module to attach it to its backplane connector Never force your module into the slot Cover all unused slots with the Card Slot Filler Allen Bradley part number 1746 N2 To remove your module press the retaining clips at the top and bottom of your module and slide it out 10 SLC 500 Isolated Analog Output Modules Wiring Your Module To wire the terminal block you need a small flat blade screwdriver Belden 8761 shielded twisted pair cable or equivalent CAUTION POSSIBLE EQUIPMENT OPERATION Before wiring your module always disconnect power from the SLC 500 system and from any other source to the module Failure to observe this precaution can cause unintended equipment operation and damage Before wiring the terminal block take some time to plan your system Ensure tha
35. g Your Output Module 17 Output Image The 8 word output image defined as the output from the SLC processor to your module defines how each channel on your module works The output data words control output signal levels for each channel The configuration bytes replace configuration DIP switches on your module In your output module each word configures two channels one independent byte per channel The output limit values define minimum and maximum output data values if output data limits are properly enabled The user defined scale values define how your module scales output data values to analog output signals if the User Defined Scale data format is selected For more information on the user defined scale and output data limits see Optional Setting The Output Data Limits or User Defined Scale later in this chapter Input Image The 8 word input image defined as the input from your module to the SLC processor holds the data received by your module and provides the status configuration and operational state of each channel Important A data word is valid only when the channel is enabled and there are no channel errors A status word is valid only when the channel is enabled and the module has processed all configuration changes 18 SLC 500 Isolated Analog Output Modules Configuring Each Output Channel Address O e 4 O e 5 After installing your module you must configure each channel by
36. le ID Code 1746sc INO4i 3521 1746sc INO4vi 3519 16 SLC 500 Isolated Analog Output Modules No special I O configuration SPIO CONFIG information is required The module ID code automatically assigns the correct number of input and output words for the processor to access Figure 4 Output and input words Address 15 O e 0 Channel 0 Output Data Word O e 1 i Channel 1 Output Data Word O e 2 Channel 2 Output Data Word O e 3 i Channel 3 Output Data Word O e 4 Channel 1 Configuration Byte i Channel 0 Configuration Byte O e 5 Channel 3 Configuration Byte i i Channel 2 Configuration Byte 0 e 6 Low Value of Output Data Limit for User Defined Scale O e 7 High Value of Output Data Limit or User Defined Scale Address 15 l e 0 Channel 0 Data Word Je lie Channel 1 Data Word i l e 2 i Channel 2 Data Word l e 3 Channel 3 Data Word l e 4 Channel 0 Status Word l e 5 Channel 1 Status Word Channel 2 Status Word l e 7 Channel 3 Status Word Example If you want to reconfigure channel 2 on your module and it is in slot 4 of the SLC chassis you would modify the configuration word at address O 4 5 Alternatively if you want to obtain the status of channel 2 you would check the status word at address I 4 6 Chapter 4 Usin
37. nnne 15 Configuring Each Output Channel eannesonvnnnnvnrnvenorenrnrenerrnrnrrnrnrernrnnnnnen 18 Optional Setting The Output Data Limits or User Defined Scale 21 Controlling Each Output Channel s Signal cccecceeeceeeeeeeeeeeeteeeseeeees 24 Monitoring Each Output Channel mssrasvennnvnnnnvnnnvnnnnrnrnvenorenrnrernrnnrnreennr 25 Checking Each Output Channel s Configuration And Status 0 25 Chapter 5 Inspecting Your Module srrnnnnnvnnonnrnnnnnrnnnnnvnnnnnrnnnnnnnnnrnnnnsnnnnsnnnnrnsnsnnnennnnne 29 Disconnecting Prime Movers mmrnnrnnrnnvnnnnnvnnnnnrnnnnnrnnnnnnnnnrnnrnnrnnnnsrrnnnesnnnn 30 Powering UP us unstsmsse sus etait AE E E AEA 30 Interpreting The LED Indicators 0 0 cece eeeeceeeeeeeeeneeeceaeesesaeeseaeeeeeaeeeeeas 31 Interpreting I O Error Codes unrrnnnvnnnnvnnnvnnnnrnnnvnnnnrnnnvenenennnvenerrernrensnrernne 31 TrOUDISSNOOUING sniker die yr es Lat eee Rhee ee ae 32 ii SLC 500 Isolated Analog Output Modules Maintaining Your Module And Ensuring Safety Tables Figures Chapter 6 Preventive Maintenance ss eee enker erne 33 Safety Considerations srrrnnvnnnvnnnnvnnnvrnonnnnn renere enn renerne renee 33 Table 1 Related Allen Bradley documents rornrrnnnnnrnnnnnrnnrnnrrnnrnrrnrrnrrnrenn iv Table 2 Electrical specifications module sssne seeren nnne 2 Table 3 Electrical specificationS Output u u u ssseeeveeereer ere ene
38. onents may impair suitability for Class I Division 2 When in hazardous locations turn off power before replacing or wiring modules Do not disconnect equipment unless power has been switched off or the area is known to be non hazardous SLC 500 Isolated Analog Output Modules The following documents contain information that may help you as you install and wire your module Avoiding Electrostatic National Electrical Code published by the National Fire Protection Association of Boston MA IEEE Standard 518 1977 Guide for the Installation of Electrical Equipment to Minimize Electrical Noise Inputs to Controllers from External Sources IEEE Standard 142 1982 Recommended Practices for Grounding of Industrial and Commercial Power Systems Noise Reduction Techniques in Electronic Systems by Henry W Ott published by Wiley Interscience of New York in 1976 Damage Guard against electrostatic damage by observing the following precautions CAUTION ELECTROSTATICALLY SENSITIVE COMPONENTS Before handling the module touch a grounded object to rid yourself of electrostatic charge When handling the module wear an approved wrist strap grounding device Handle the module from the front away from the backplane connector Do not touch backplane connector pins Keep the module in its static shield container when not in use or during shipment Failure to observe these precautions can degrade the module
39. properly in chassis Cycle power Is problem Yes corrected Contact you local distributor or Spectrum Controls Channel Status LED s blinking Fault condition Check channel status word bits 9 15 Module Status LED on Channel Channel Status LED s Status LED s off on Channel is Channel is not enabled enabled but not working Enable channel if desired by setting channel config word bit 0 1 Retry Verify module power external and or rack Retry Bit 15 set 1 Fatal channel error Reset the processor or cycle power to your module End Bit 14 set 1 Non fatal channel error Check the configuration byte Correct and Retry End Bit 13 set 1 Under range error Check the output data word and Table 11 Correct and Retry Bit 12 set 1 Over range error Check the output data word and Table 11 Correct and Retry Bit 11 set 1 Under limit error Check the output data word and limit 0 e 6 Correct and Retry Is problem corrected Is problem corrected Contact you local distributor or Spectrum Controls Contact you local distributor or Bit 10 set 1 output data word and limit 0 e 7 Correct and Retry
40. scale transition voltage measured over the operating temperature range of the module LSB least significant bit The bit that represents the smallest value within a string of bits The weight of this value is defined as the full scale range divided by the resolution Maximum differential voltage The largest voltage difference allowed between the negative terminal and positive terminal during normal differential operation Module ID code A unique number associated with each 1746 I O module The code defines for the processor the type of I O or specialty module residing in a specific slot in the 1746 chassis Module update time See channel update time vi SLC 500 Isolated Analog Output Modules Overall accuracy The worst case deviation of the signal over the full range expressed in percent of full scale Rack A hardware assembly that houses devices such as I O modules adapter modules processor modules and power supplies Repeatability The closeness of agreement among repeated measurements of the same variable under the same conditions Resolution The smallest detectable change in a measurement typically expressed in engineering units e g 0 15 C or as a number of bits For example a 12 bit system has 4096 possible output states It can therefore measure part in 4096 See also effective resolution Safe state The state of the analog outputs entered when the processor is no
41. t in RUN mode The user must ensure that this state is a safe state for the application Status word Contains status information about the channel s current configuration and operational state You can use this information in your ladder program to determine whether the channel data word is valid Step response time The time required for the output signal to reach 95 of its expected final value given a full scale step change in the output data word Useful resolution See effective resolution Chapter 1 General Features And Benefits Overview And Specifications The 1746sc INO4i provides four isolated channels of current outputs while the 1746sc INO4vi provides four isolated channels of current or voltage outputs in any combination In both modules the voltage and or current ranges are independently configurable for each channel These modules also provide new advanced features to make your control systems more dependable and flexible Read this chapter to familiarize yourself further with your isolated analog module shown above This chapter covers e general features and benefits e detailed specifications Increased System Accuracy and Reliability Both modules provide 750 Vdc channel to channel isolation which means no electrical noise crosstalk between channels resulting in a high usable resolution They also provide 750 Vdc field wiring to backplane isolation to protect the processor and rack
42. t the SLC 500 system is installed in a NEMA rated enclosure and that the SLC 500 system is properly grounded Ensure that the load resistance for a current output channel is less than 500 Q Ensure that the load resistance for a voltage output channel is greater than I KQ Route the field wiring away from any other wiring and as far as possible from sources of electrical noise such as motors transformers contactors and ac devices As a general rule allow at lease 6 in about 15 2 cm of separation for every 120 V of power Routing the field wiring in grounded a conduit can reduce electrical noise further If the field wiring must cross ac or power cables ensure that they cross at right angles To wire your module follow these steps 1 Determine the length of cable you need to connect a channel to its field device Remember to include additional cable to route the drain wire and foil shield to their ground points 2 At each end of the cable strip some casing to expose the individual wires 3 Trim the exposed signal wires to 2 in lengths Strip about 3 16 in about 5 mm of insulation away to expose the end of each wire Chapter 2 Installing And Wiring Your Module 11 4 At one end of the cable twist the drain wire and foil shield together bend them away from the cable and apply shrink wrap Foil Shield and Drain Wire Insulati insulation Black Wire Clear Wire 5 At the other end of the ca
43. to a rack mounting bolt 14 TI Ext pwr 15 H supply i A 24 Vdc power supply if external power is selected Chapter 3 Things To Consider Before Using Your Module Read this chapter to familiarize yourself with how the processor communicates with your module channel update time channel enable and disable times temperature calibration time e output mode change time INO4vi only your module s response to slot disabling How The Processor Your processor transfers data to and receives data from the processor Communicates With Your through an image table residing in the data files of your processor The Module processor updates this image table once during each scan of your ladder program Figure 4 shows the image table for your output module Figure 3 Output and input scans SLC 5 0X INO4 Data Files Output amp Input Image Output eas eee aaa Scan ae eee slote ante es Output Image Output Image 8 Words Input Slot e Scan Input Image Input Image 8 Words Channel Update Time For an output module channel update time is the time required for the module to convert the channel data received from the processor to an analog output signal at the terminals 14 SLC 500 Isolated Analog Output Modules Temperature Calibration Time Output Mode Change Time INO4vi only Your Module s Response To Slot Disabling In general you can reduce
44. tus indicators one for each channel One green module status indicator Belden 8761 shielded twisted pair or equivalent One 12 24 AWG wire per terminal Removable supplied SLC 500 Isolated Analog Output Modules Table 5 Environmental specifications Operating Temperature 0 to 60 C 32 to 140 F Storage Temperature 40 to 85 C 40 to 185 F Relative Humidity 5 to 95 non condensing Certifications UL CUL and CE Hazardous Environment Classifications Class Division 2 Groups ABCD Chapter 2 Installing And Wiring Your Module Read this chapter to install and wire your module This chapter covers e avoiding electrostatic damage e determining power requirements e setting the DIP switch e selecting a rack slot e inserting your module into the rack e wiring your module Note that although your module has a jumper on its printed circuit board this jumper is for the manufacturer s use only Also your module was calibrated by the manufacturer so you don t need to perform this task Important For UL and CUL compliance power and input output I O wiring must be in accordance with Class I Division 2 wiring methods Article 501 4 b of the National Electrical Code NFPA 70 and in accordance with the authority having jurisdiction Also you must observe the warnings shown below Failure to observe these warnings can cause personal injury WARNING EXPLOSION HAZARD Substitution of comp
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