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Allen Bradley | ControlLogix | 1756-OF4 | Image

Allen Bradley | ControlLogix | 1756-OF4 | Image Allen Bradley | ControlLogix | 1756-OF4 | Image

SKU 2172012  UPC 0799705794412

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The Allen Bradley 1756-OF4 Analog Voltage/Current Analog Output Module is a 4-point analog voltage/current module used for high-speed output control in many industrial automated applications. This module provides means of sharing output status among multiple connected ControlLogix controller, and like most 1756 controlLogix I/O modules, it is installed on any ControlLogix chassis slot using a removable terminal block or an interface module. The 1756-OF4 has four 15-bits ±10 Volt DC/4 to 20 milliAmpere outputs, and it draws 150 milli-Ampere backplane current at 5.1 Volt Dc and 120 milli-Ampere backplane current at 24 volt DC. It has total backplane power of 3.7 Watts, with 3.7 Watts maximum power dissipation, and it has a thermal dissipation of 10.91 BTU/Hour. This module has open circuit detection capability, which helps detect an open condition in the module’s circuitry, and it also provides up to 24 Volt DC overvoltage protection. The 1756-OF4 is digitally programmed to provide a current limit of up to 21 milliAmpere or less to protect against short-circuit, and it offers users a drive capability of 2000 Ohms (Voltage) or 0 to 750 Ohms (Current).

It requires 12-month interval field calibration, and it is calibrated with an accuracy better than 0.05% over 4 to 21 milliAmpere/-10.4 to 10.4 Volt DC range. The 1756-OF4 has maximum offset drift of 50 microVolts per degree Celsius, with a gain drift of 25 ppm/degree Celsius (voltage)/50 ppm/ degrees Celsius (current), and it has 1 millisecond maximum scan time for integer data format type and 2 milliseconds for floating point data format type. The 1756-OF4 has a 250 Volt AC voltage isolation between output channel to the backplane using reinforced insulation type, tested at 1350 Volt AC for 2 seconds, and it is electronically keyed to the controllogix chassis via digital control. It is mechanically keyed to the removable terminal block with mounting torque of 1.36 Newtons per meter (12 pounds on an inches), and it has 22 to 14 AWG stranded/solid copper wire as field side wire conductor. The 1756-OF4 has T4A and T4 North America and ATEX rated temperature code, and it has an operating temperature range of 0 to 60 degree Celsius (32 to 140 degree Fahrenheit). It is designed to withstand 30G operational shock, and it is KCFM, EX, CE, C-TICK, CSA, and UL certified.

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