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Chapter 1: Module Overview

1-3

User’s Manual Pub. 0300266-04 Rev. A

Table 1-2. Electrical Specifications-Inputs

Description

Specification

Input Current Ranges

(selectable for each channel)

4 to 20 mA
0 to 20 mA

Input Voltage Ranges

‒

INI4vi only

(selectable for each channel)

-10 to +10 VDC
0 to 10 VDC
0 to 5 VDC
1 to 5 VDC

SLC Communication Formats

(selectable for each channel)

Scaled engineering units
Scaled for PID
Proportional counts
1746-INI4 format
User-defined scale A

User-defined scale B

Input Impedance
Current Inputs
Voltage Inputs—INI4vi only

Less than 250 Ohms

Greater than 220 Ohms

Input Overcurrent Protection

70 mA non-continuous

33 mA continuous

Input Filter 3 dB Cutoff Frequencies

(selectable for each channel)

13.1 Hz for 50 Hz filter

15.7 Hz for 60 Hz filter

65.5 Hz for 250 Hz filter

131 Hz for 500 Hz filter

Input Step Response Time

80 ms for 50 Hz filter

66.7 ms for 60 Hz filter

16 ms for 250 Hz filter

8 ms for 500 Hz filter

Channel Update Time (minimum)
Current Inputs

Voltage Inputs

14 ms with 500 Hz filters and all

channels enabled

18 ms with 500 Hz filters and all

channels enabled

Input Resolution (maximum)
Current Inputs
Voltage Inputs-INI4vi only

16-bit
312.8 nA/count
312.8

V/count

Overall Accuracy
Current Inputs

Voltage Inputs-INI4vi only

0.15% of full scale at 25 °C
0.25% of full scale at 60 °C
0.10% of full scale at 25 °C
0.25% of full scale at 60 °C

Содержание 1746sc-INI4i

Страница 1: ...User s Manual Pub 0300128 04 Rev A...

Страница 2: ...vice referenced herein No patent liability is assumed by Spectrum Controls Inc with respect to the use of any of the information products circuits programming or services referenced herein The informa...

Страница 3: ...3 SELECTINGANINPUTFILTER FREQUENCY 3 3 SECTION 3 4 AUTO CALIBRATION TIME 3 6 SECTION 3 5 CHANNELENABLE AND DISABLE TIMES 3 7 SECTION 3 6 YOUR MODULE S RESPONSETO SLOT DISABLING 3 7 CHAPTER 4 USING YOU...

Страница 4: ...R CODES 6 3 SECTION 6 6 TROUBLESHOOTING 6 4 CHAPTER 7 MAINTAINING YOUR MODULE AND ENSURING SAFETY 7 1 SECTION 7 1 PREVENTIVEMAINTENANCE 7 1 SECTION 7 2 SAFETYCONSIDERATIONS 7 1 SECTION 7 3 GETTING TEC...

Страница 5: ...ley representative for the proper training before using these products What This Manual Covers This guide covers the 1746sc INI4i and 1746sc INI4vi isolated analog input modules It contains the inform...

Страница 6: ...ct numbers are as follows USA 1 440 646 6900 United Kingdom 01 908 635 230 Australia 1 800 809 929 Mexico 001 888 365 8677 Brazil 55 11 3618 8800 Europe 49 211 41553 630 or send an email tosupport spe...

Страница 7: ...squant d entra ner des blessures pouvant tre mortelles des d g ts mat riels ou des pertes financi res Les messages Attention vous aident identifier un danger viter ce danger et en discerner les cons q...

Страница 8: ...viii SLC 500 Isolated Analog Input Modules User s Manual Pub 0300128 04 Rev A...

Страница 9: ...ting in less noise and a high effective resolution They also provide 750 VDC field wiring to backplane isolation to protect your processor and other rack components And for state of the art precision...

Страница 10: ...ifications Module Description Specification Backplane Current Consumption typical 1746sc INI4i 440 mA at 5 VDC 0 mA at 24 VDC 1746sc INI4vi 550 mA at 5 VDC 0 mA at 24 VDC Backplane Power Consumption t...

Страница 11: ...Input Overcurrent Protection 70 mA non continuous 33 mA continuous Input Filter 3 dB Cutoff Frequencies selectable for each channel 13 1 Hz for 50 Hz filter 15 7 Hz for 60 Hz filter 65 5 Hz for 250 H...

Страница 12: ...ors one for each channel One green module status indicator Recommended Cable Belden 8761 shielded twisted pair or equivalent Wire Size maximum One 12 24 AWG wire per terminal Terminal Block Removable...

Страница 13: ...Nonincendive Electrical Equipment for Use in Class I Division 2 Hazardous Classified Locations NRAG CSA C22 2 No 213 M1987 Non incendive Electrical Equipment for use in Class I Division 2 Hazardous Lo...

Страница 14: ...1 6 Chapter 1 Module Overview User s Manual Pub 0300128 04 Rev A...

Страница 15: ...n cause personal injury WARNING EXPLOSION HAZARD Substitution of components may impair suitability for Class I Division 2 Do not replace components or disconnect equipment unless power has been switch...

Страница 16: ...ive If this product bears the CE marking it is approved for installation within the European Union and EEA regions It has been designed and tested to meet the following directives Section 2 3 EMC Dire...

Страница 17: ...550 mA 0 mA Use the table above to calculate the total load on the system power supply For more information see the Allen Bradley system Installation and Operation Manual NOTE IMPORTANT Your module do...

Страница 18: ...e module s heat dissipation specification In addition route shielded twisted pair analog input wiring away from any high voltage I O wiring Section 2 7 Inserting your Module into the Rack WARNING POSS...

Страница 19: ...the top and bottom of the chassis 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 conne...

Страница 20: ...channel is greater than 1 k 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 Generally a...

Страница 21: ...r 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 equi...

Страница 22: ...2 8 Chapter 2 Installation and Wiring User s Manual Pub 0300128 04 Rev A Figure 2 2 Wiring Diagrams Showing Differential Inputs...

Страница 23: ...ction 3 1 How the Processor Communicates With Your Module Your processor transfers data to and receives data from the processor through an image table residing in the data files of your processor The...

Страница 24: ...ration and operational state of each channel NOTE 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 enable...

Страница 25: ...rejection and effective resolution as described below For the fastest possible channel update time enable only one channel and select a 250 or 500 Hz filter Conversely your module operates most slowly...

Страница 26: ...0 ms 4 1 ms 2 20 5 17 7 7 3 7 3 3 19 8 16 6 10 6 10 7 4 21 0 17 0 13 8 13 8 2 20 5 17 7 7 3 7 3 Voltage Input INI4vi only 1 19 7 ms 16 6 ms 5 0 ms 5 0 ms 2 19 7 17 2 9 2 9 2 3 19 7 16 6 13 5 13 5 4 19...

Страница 27: ...Chapter 3 Configuring the 1746sc INI4I 3 5 User s Manual Pub 0300266 04 Rev A Figure 3 3 Signal Attenuation with 50 Hz Input Filter Figure 3 4 Signal Attenuation with 60 Hz Input Filter...

Страница 28: ...Attenuation with 500 Hz Input Filter Section 3 4 Auto Calibration Time Your module requires some time to auto calibrate a channel During this time your module cannot sample and convert input signals...

Страница 29: ...mes Duration Channel Enable Up to 6 5 ms Enabling user defined scaling may require an additional 0 1 ms Channel Disable Up to 5 5 ms Section 3 6 Your Module s Response To Slot Disabling By writing to...

Страница 30: ...3 8 Chapter 3 Configuring the 1746sc INI4I User s Manual Pub 0300128 04 Rev A...

Страница 31: ...you must configure the slot your module is in by entering your module s ID code in APS To enter your module s ID code select other from the list of modules on the APS system I O configuration display...

Страница 32: ...sing Your Input Module User s Manual Pub 0300128 04 Rev A NOTE Important After reconfiguring a channel you must toggle the channel enable bit configuration bit 0 in order for your module to use the ne...

Страница 33: ...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...

Страница 34: ...mat definitions Data Format Selected Input Range Actual Signal Limits Count Limits Min Max Min Max Engineering Units 10 V 10 25 V 10 25 V 10250 10250 0 10 V 0 50 V 10 25 V 500 10250 0 5 V 0 50 V 5 50...

Страница 35: ...s only use this bit field to define the state of the channel data word when your module detects an open circuit for that channel If you select zero on open input circuit your module sets the channel d...

Страница 36: ...the 1746sc INI4i and 1746sc INI4vi input modules let you define up to two custom data formats These user defined scales are very similar to the proportional counts data format provided by your module...

Страница 37: ...ed scale Ulow low limit of user defined scale Uhigh high limit of user defined scale U Uhigh Ulow Example You have a sensor with a 4 20 mA range and you want to scale your data from 100 to 9999 counts...

Страница 38: ...ord is set to zero Section 4 5 Checking Each Input Channel s Configuration and Status Words 4 through 7 of the input image file addresses I e 4 through I e 7 reflect the configuration and status of ea...

Страница 39: ...1 Scaled for PID 0 1 0 Proportional counts 0 1 1 1746 NI4 format 1 0 0 User defined scale A 1 0 1 User defined scale B 0 0 Zero on open input circuit 0 1 Max on open input circuit 1 0 Min on open inp...

Страница 40: ...der range condition exists when the input value is very near or below the lower limit for that channel s data format see Table 14 Non Fatal Channel Error status bit 14 This bit is set to one whenever...

Страница 41: ...r programs see the Getting Started Guide For APS Section 5 1 PID Control Your input module was designed to work directly with the SLC 5 02 5 03 and 5 04 PID instruction without an intermediate scaling...

Страница 42: ...NOTE IMPORTANT When using your module s Scaled For PID data format with the SLC PID function ensure that the Maximum Scaled Smax word7 and Minimum Scaled Smin word 8 PID instruction parameters match...

Страница 43: ...d you have a pressure sensor with a 4 20 mA range connected to channel 0 The following figures show you how to use the User Defined Scaling data format to send specially scaled data 100 to 9999 in thi...

Страница 44: ...5 4 Chapter 5 Programming Examples User s Manual Pub 0300128 04 Rev A...

Страница 45: ...n WARNING FIELD WIRING ERRORS Before enabling a channel through your ladder program ensure that you have not connected a voltage source to a channel configured for a current input and vice versa Failu...

Страница 46: ...n 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 s...

Страница 47: ...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 Section 6 5 I...

Страница 48: ...6 4 Chapter 6 Testing Your Module User s Manual Pub 0300128 04 Rev A Section 6 6 Troubleshooting Figure 6 2 Problem Resolution Flowchart...

Страница 49: ...ay cause a malfunctioning of the SLC system or damage to the components WARNING POSSIBILITY OF LOOSE CONNECTIONS Before inspecting connections always ensure that incoming power is off Failure to obser...

Страница 50: ...n Manual for more information Section 7 3 Getting Technical Assistance Note that your module contains electrostatic components that are susceptible to damage from electrostatic discharge ESD An electr...

Страница 51: ...t also calibrates a channel every 10 seconds if auto calibration is enabled see Chapter 4 For these reasons your module should never need calibration You may however want to verify the calibration per...

Страница 52: ...ation word values Address Binary Value Decimal Equivalent O e 0 0000 0000 0010 0001 33 O e 1 0000 0000 0010 0001 33 O e 2 0000 0000 0010 0001 33 O e 3 0000 0000 0010 0001 33 e slot number 2 Let the op...

Страница 53: ...ons 2 7 Filter Frequencies 1 2 G Generic Profile 3 2 Grounding 2 8 H Hardware Features 1 2 Hazardous Location 2 2 I Input Data 3 16 Input Type 1 1 L LED 1 4 Low Voltage Directive 2 1 M Module Configur...

Страница 54: ...User s Manual Pub 0300128 04 Rev A...

Страница 55: ...User s Manual Pub 0300266 04 Rev A...

Страница 56: ...ons subject to change without notice The Encompass logo and SLC 500 are trademarks of Rockwell Automation Corporate Headquarters Spectrum Controls Inc 1705 132nd Avenue NE Bellevue WA 98005 USA Fax 42...

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