Allen-Bradley 1756-OF8

Allen-Bradley 1756-OF8 is an automation control module produced by Rockwell Automation(AB),USA.It is an analog output module and one of the ControlLogix series products.The following is a detailed introduction to the module:

1.Basic features

Function:This module is usually used in industrial control systems to convert digital signals into analog output signals to control various actuators or devices,such as valves,motors,inverters,etc.

Output channels:It has 8 voltage or current analog output channels.

Output capacity:The output rating is±10 volts or 0 to 20 mA,and the voltage or current output range is-10 to 10V or 4 to 20 mA.

2.Technical parameters

Signal resolution:The signal resolution is 15 bits at 21 mA and 15 bits at 10.4 volts.

Power consumption:The maximum power consumption of its circuit is 5.8 watts,and the total rated power is also 5.8 watts.

Backplane current:210 mA at 24 VDC;150 mA at 5.1 VDC.

Protection:Circuit detection provides overvoltage protection at 24 VDC and short circuit protection by electronically limiting current to 21 mA or less.

Scan time:12 ms for floating point and 8 ms for integer.

Total module error:0.15%in voltage mode and 0.3%in current mode.

Voltage or current settling time:2 ms.

Calibration accuracy:0.05%.

Module calibration interval:12 months.

III.Physical characteristics

Insulation voltage:250 V.2 seconds of isolation between output channels and backplane using 1350 V AC tested with reinforced insulation.

Temperature code:T4A(North America),T4(ATEX),and T4(IEC)temperature codes are available.

Housing:Open housing is used.

Allen-Bradley 1756-OF8

4.Compatibility and Application

Compatibility:1756-OF8 modules are generally compatible with other automation products and systems of AB Company,and can form a complete automation control system with other modules.Support redundant communication media to prevent loss of communication when the splitter or relay line is disconnected.

Application:1756-OF8 modules are widely used in the field of industrial automation,including manufacturing,chemical,energy,medicine and other industries.They are an important part of modern industrial control systems to achieve control of various equipment and process parameters.

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