Allen-Bradley SLC 500 1746-NI4 Installation Instruction

Allen-Bradley SLC 500 1746-NI4 Installation Instruction

Analog i/o modules

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SLC 500™ Analog I/O Modules
(Catalog Numbers 1746-NI4, -NIO4I, -NIO4V, -NO4I,
-NO4V, -FIO4I, and -FIO4V)
Inside...
Important User Information ...................................................... 2
For More Information ............................................................... 3
Types of Analog Modules ......................................................... 4
Hazardous Location Considerations ......................................... 7
Environnements dangereux....................................................... 7
Choosing a Slot in the Chassis ................................................ 10
Installing Your Module ........................................................... 11
Wiring Considerations............................................................. 13
Wiring the Analog Module...................................................... 15
Labeling and Installing the Terminal Block............................ 16
Specifications .......................................................................... 22
Installation Instruction
page
Publication 1746-IN008A-US-P

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Summary of Contents for Allen-Bradley SLC 500 1746-NI4

  • Page 1: Table Of Contents

    Installation Instruction SLC 500™ Analog I/O Modules (Catalog Numbers 1746-NI4, -NIO4I, -NIO4V, -NO4I, -NO4V, -FIO4I, and -FIO4V) Inside… page Important User Information ............2 For More Information ............... 3 Types of Analog Modules ............4 Hazardous Location Considerations ......... 7 Environnements dangereux............
  • Page 2: Important User Information

    Since there are many variables and requirements associated with any particular installation, Allen-Bradley does not assume responsibility or liability (to include intellectual property liability) for actual use based upon the examples shown in this publication.
  • Page 3: For More Information

    For More Information As part of our effort to preserve, protect, and improve our environment, Allen-Bradley is reducing the amount of paper we use. Less paper means more options for you. In addition to traditional printed publications and CD-ROM versions, we now offer on–line manuals with the most up-to-date information you can get.
  • Page 4: Types Of Analog Modules

    SLC 500™ Analog I/O Modules Types of Analog Modules 1746-NI4 Analog Input Module The NI4 Analog Input module contains 4 analog input channels that are user selectable per channel for voltage or current to support a variety of monitoring and controlling applications. 1746-NO4I and NO4V Analog Output Modules The NO4I and NO4V Analog Output Modules provide 4 analog output channels.
  • Page 5 SLC 500™ Analog I/O Modules Analog Input A/D Characteristics NI4, NIO4I, & NIO4V Decimal Range Number of Nominal Resolution Input Range (input image table) Significant Bits ±10V dc -1 LSB -32,768 to +32,767 305.176 mV/LSB 0 to 10V dc -1 LSB 0 to 32,767 0 to 5V dc 0 to 16,384...
  • Page 6 SLC 500™ Analog I/O Modules with analog current and voltage input signals. The channels can be wired as either single-ended or differential inputs. There are DIP switches on the circuit board for selecting voltage or current input. Function Label Power Status LED OUTPUT INPUT POWER...
  • Page 7: Hazardous Location Considerations

    SLC 500™ Analog I/O Modules Hazardous Location Considerations This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or non-hazardous locations only. The following WARNING statement applies to use in hazardous locations. EXPLOSION HAZARD WARNING •...
  • Page 8 SLC 500™ Analog I/O Modules Determining Your Power Requirements for a Modular Controller Analog modules require both 5V dc and 24V dc power from the backplane of the SLC 500 system. However, the NO4I and NO4V analog modules can use an external 24V dc power supply.
  • Page 9 SLC 500™ Analog I/O Modules Determining Your Power Requirements for a Fixed Controller The 2-slot, SLC 500 fixed I/O expansion chassis (1746-A2) IMPORTANT will support only specific combinations of modules. If you wish to use an I/O module in a 2-slot expansion chassis with another SLC I/O or communication module, refer to the SLC 500 Analog I/O Modules User Manual, publication 1746-6.4 for valid combinations of modules.
  • Page 10: Choosing A Slot In The Chassis

    SLC 500™ Analog I/O Modules Switch Settings for the 1746-NIO4I, -NIO4V, -FIO4I, and -FIO4V The NIO4I and NIO4V have 2 individual switches labeled 1 and 2. These switches control the input mode of channel 0 and 1. A switch in the ON position configures the channel for current input.
  • Page 11: Installing Your Module

    SLC 500™ Analog I/O Modules Installing Your Module All modules are mounted in a single slot. Remember that in a modular system the processor always occupies the first slot of the first chassis. ATTENTION Never install, remove, or wire modules with power applied to the chassis.
  • Page 12 SLC 500™ Analog I/O Modules Top and Bottom Module Release (s) Card Guide Publication 1746-IN008A-US-P...
  • Page 13: Wiring Considerations

    SLC 500™ Analog I/O Modules Wiring Considerations The following section provides system wiring guidelines, how to ground your Belden™ cable, and how to determine the cable length. ATTENTION Before wiring any analog module, disconnect power from the SLC 500 system and from any other source to the analog module.
  • Page 14 SLC 500™ Analog I/O Modules Grounding Your Cable Belden cable #8761 has two signal wires (black and clear), one drain wire and a foil shield. Refer to illustration below for Belden cable #8761. The drain wire and foil shield must be grounded at one end of the cable. Do not earth ground the drain wire and foil shield at both ends of the cable.
  • Page 15: Wiring The Analog Module

    SLC 500™ Analog I/O Modules Wiring the Analog Module After the analog module is properly installed in the chassis, use the following wiring procedure. Belden cable #8761 is recommended when wiring analog modules. This section assumes that you have properly installed the analog module.
  • Page 16: Labeling And Installing The Terminal Block

    SLC 500™ Analog I/O Modules Cable Preparation END 1 Foil Shield and Drain Wire Black Wire Insulation Clear Wire Cable Preparation END 2 Black Wire Insulation Clear Wire Labeling and Installing the Terminal Block The terminal block has a write-on label. Labeling the terminal block will help ensure that it is installed on the correct module.
  • Page 17: Minimizing Electrical Noise On Analog Modules

    SLC 500™ Analog I/O Modules Once you have wired your analog module and properly labeled the terminal block, install the terminal block on the analog module. To install the terminal block: 1. Align the terminal block with the receptacle. 2. Insert the terminal block and press firmly at the top and bottom until it is properly secured.
  • Page 18 SLC 500™ Analog I/O Modules A system may malfunction due to a change in the operating environment after a period of time. We recommend periodically checking system operation, particularly when new machinery or other noise sources are installed near the SLC 500 system.
  • Page 19 SLC 500™ Analog I/O Modules Wiring Diagram (showing differential inputs) analog IN 0+ source IN 0- earth ANL COM ground IN 1+ analog IN 1- source ANL COM earth IN 2+ ground IN 2- Jumper ANL COM unused IN 3+ inputs.
  • Page 20 SLC 500™ Analog I/O Modules Wiring Schematics for 2, 3, and 4-Wire Analog Input Devices The module does not provide loop power for analog inputs. IMPORTANT Use a power supply that matches the transmitter specifications. 2-Wire Transmitter Transmitter Module IN + Power Supply IN -...
  • Page 21 SLC 500™ Analog I/O Modules Wiring Schematic for Single-ended Analog Input Connections When wiring single-ended analog input devices to the analog input card, the number of total wires necessary can be limited by using the ANALOG COMMON terminal. Note that differential inputs are more immune to noise than single-ended inputs.
  • Page 22: Specifications

    SLC 500™ Analog I/O Modules Specifications General Specifications for NI4, NIO4I, NIO4V, NO4I, NO4V, FIO4I, FIO4V Description Specification SLC Communication Format 16-Bit Two’s Complement Binary Field Wiring to Backplane Isolation 500V dc Update Time 512 µs for all channels in parallel Recommended Cable Shielded Belden #8761 Maximum Wire Size...
  • Page 23 SLC 500™ Analog I/O Modules Backplane Current Specification for NI4, NIO4I, NIO4V, NO4I, NO4V, FIO4I, and FIO4V Catalog Input Channels Output Backplane Current External 24V dc 1746- per Module Channels Draw Power Supply per Module Tolerance 5V (max.) 24V (max.) 4 differential, 35 mA 85 mA...
  • Page 24 SLC 500™ Analog I/O Modules General Analog Input Specifications for NI4, NIO4I, NIO4V, FIO4I, and FIO4V Description Specification NI4, NIO4I, NIO4V FIO4I, FIO4V Converter Resolution 16-Bit 12-bit Repeatability ± 1 LSB Location of LSB in I/O image word 0000 0000 0000 0001 Non-linearity 0.01% ±0.073% of full scale...
  • Page 25 SLC 500™ Analog I/O Modules Current-Loop Input Specifications for NI4, NIO4I, NIO4V, FIO4I, and FIO4V Description Specification NI4, NIO4I, NIO4V FIO4I, FIO4V -20 to +20 mA Input Range (Normal Operation) 0 to 20 mA (nominal) -30 to +30 mA Absolute Maximum Input Current 0 to 30 mA (maximum) Absolute Maximum Input Voltage ±...
  • Page 26 SLC 500™ Analog I/O Modules Voltage Input Specifications for NI4, NIO4I, NIO4V, FIO4I, and FIO4V Description Specification NI4, NIO4I, NIO4V FIO4I, FIO4V -10 to +10V dc - 1 Input Range 0 to +10V dc Voltage Input Coding (-10 to +10V dc - -32,768 to +32,767 0 to +4095 1 LSB)
  • Page 27 SLC 500™ Analog I/O Modules Current Output Specifications for NIO4I, NO4I, and FIO4I Description Specification NIO4I, NO4I FIO4I Converter Resolution 14 bit Location of LSB in I/O image word 0000 0000 0000 01XX Non–linearity 0.05% Conversion Method R-2R Ladder Step Response 2.5 ms (at 95%) Load Range 0 to 500 Ohms...
  • Page 28 Voltage Output Specifications for NIO4V, NO4V, and FIO4V Description Specification NIO4V and NO4V FIO4V Converter Resolution 14 bit Location of LSB in I/O image word 0000 0000 0000 01XX Non-linearity 0.05%of full scale Conversion Method R-2R Ladder Step Response 2.5 ms (at 95%) 2.5 ms (normal) ∞...

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