Allen Bradley 1746-FIO4V /A SLC 500 Fast Analog Module  With satisfying service

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Product reference      1746-FIO4V

The Allen-Bradley 1746-FIO4V is a SLC 500 Analog Combination Module. This Analog Combination Module has 2 Inputs and 2 Outputs with a B of 7 kilohertz.

The Allen-Bradley 1746-FIO4V SLC 500 fast analog combination module has 4 channels. In particular, it has 2 fast analog, differential voltage or current input channels, which are selectable by channel, and 2 voltage outputs which are grouped together. Its input channels have a 0-20 mA input range, a maximum absolute input voltage of +/- 7.5V DC or of 7.5V AC RMS, a maximum absolute input current of 0-30 mA, and a current input of 0-2047 A. The output channels of this module come with 0 to 21 mA – LSB. The 1746-FIO4V also comes with field wiring to a backplane isolation of 500V DC.

This module makes use of a 16-bit two’s complement binary communication. Its voltage rating is 0-20 V in common mode and 0-10, 0-5, or 1-5V DC. The current ratings of the 1746-FIO4V module are 0-20 mA and 4-20 mA, and the backplane current ratings are 55 mA at 5 V and 150 mA at 24V. The step response time of the 1746-FIO4V is 100 milliseconds in and 2.5 milliseconds out at 95%, while its update time is 512 milliseconds. Its resolution is 12 bits in and 14 bits out, and its bandwidth is 7 KHz.

An LED status indicator is present in this module. 1746-FIO4V uses a chassis mount and it is enclosed in an open-type enclosure, with the 1746-FIO4V module compatible with a 14 AWG connecting cable. Its non-condensing relative humidity is 5-95%.

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. The NO4I module contains 4 current outputs. The NO4V module contains 4 voltage outputs. Both of these modules support a variety of control applications.

1746-NIO4I and NIO4V Analog Combination Modules The NIO4I and NIO4V Analog Combination I/O modules provide 2 input and 2 output channels in a single-slot module. The 1746-NIO4I module contains 2 current or voltage inputs (user selectable per channel) and 2 current outputs. The 1746-NIO4V module contains 2 current or voltage inputs (user selectable per channel) and 2 voltage outputs. 

1746-FIO4I and FIO4V Fast Analog Combination Modules The FIO4I and FIO4V Fast Analog Combination modules are 2-input/2-output combination modules ideal for high speed applications with more rapidly changing analog signals. These fast response modules are best suited for control of pressure and position in equipment such as hydraulic presses and molding machines.

Analog Modules Operation The module converts analog input signals to 16-bit binary values for storage in the SLC processor’s input image table. The decimal range, number of significant bits, and converter resolution depend on the input range that you use for the channel.

Analog Module Hardware Features The module contains a removable terminal block providing connection for the analog input and/or output channels, which is specifically designed to interface 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. 

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. This eliminates the 24V dc backplane power requirements, providing configuration flexibility if SLC power supply loading is critical. These two modules provide user-supplied external 24V dc power supply connections. The following table shows the power requirements for each analog module using backplane power. Use this table to calculate the total load on the modular system power supply. For more information refer to the SLC 500 Modular Hardware Style User Manual, publication 1747-UM011.

(1) The 24V dc user power connection on a fixed SLC 500 can power an NO4I or NO4V analog module. However, the regulation of the 24V dc user connection on a modular SLC 500 power supply, catalog number 1746-P1, -P2, and -P4 is outside of the requirements of the NO4I and NO4V analog modules and cannot be used. (2) Omit these values from your SLC power supply loading calculations if you decide to use an external power supply.

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