1756-OF6CI | Allen-Bradley ControlLogix Isolated Analog Output, Current, 6 Points

Description 

Allen Bradley ControlLogix Isoloated Analog Output Module with current loop with 6-Point Isolated Outputs

Technical Specifications 

Information About 1756-OF6CI

The Allen-Bradley 1756-OF6CI module is a ControlLogix Series A general purpose isolated analog current/voltage output module. This module has 6 available individually-isolated current outputs. It also has a 13-bit resolution across 21 milliamps (2.7 µA). It requires either the 1756-TBNH or 1756-TBSH removable terminal block housing (RTB) before it can be installed in a grounded and installed chassis.

Communication format types available with the 1756-OF6CI module are the integer and floating point formats. Features of this analog output module include data echo, ramping/rate limiting, clamping/limiting, clamp/limit alarms, and hold for initialization. The programs the 1756-OF6CI’s features.

It has a range of 0 to 20 milliamps with a low signal and user counts of 0 milliamps and -32768 counts and a high signal and user counts of 21.074 milliamps with 32767 counts. The current draw of this module at 5.1V is 250 milliamps from 0 to 550 ohms terminated on the OUTs and RTNs and 551 to 1000 ohms terminated on the OUTs and ALTs. At 24V, its current draw is 225 milliamps for 0 to 550 ohms terminated on the OUTs and RTNs and 300 milliamps for 551 to 1000 ohms terminated on OUTs and ALTs. It has a total backplane power of 6.7 W for 0 to 550 ohms and 8.5 W for 551 to 1000 ohms. The module has a maximum power dissipation of 5.5 W for 0 to 550 ohms loads and 6.1 W for 551 to 1000 ohms loads. It does not have open circuit detection but it does have a 24V DC overvoltage protection and a short circuit protection that is limited to 21 milliamps or less. Routine tested at 1350V AC for 2 s, its continuous isolation voltage is 250V.

The 1756-OF6CI module has a maximum module scan time of 10 ms for the integer format and 25 ms for floating point format with a module error of 0.6% of the range. Its settling time is less than 2 ms to 95% of final value with resistive loads, a calibration interval of 6 months, and a calibrated accuracy of better than 0.1% of 4 to 21 milliamps at 25 Degrees Celsius. The nominal gain drift with temperature is 60 ppm per Degree Celsius and the maximum gain drift with temperature is 100 ppm per Degree Celsius.

Manufacturer information

Allen‑Bradley components, integrated control and information solutions are built for demanding industrial applications. We integrate control and information across the enterprise to make you as productive as possible.

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