Triconex 3805EN 4-20mA Analogue Output

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Analog Output Modules

Analog Output (AO) modules receive output signals from the Main Processor module on each of three channels. Each set of data is then voted and a healthy channel is selected to drive the outputs. Each module monitors its own current outputs (as input voltages) and main- tains an internal voltage reference to provide self-calibration and module health information.

Each channel on a module has a current loopback circuit which verifies the accuracy and presence of analog signals independently of load presence or channel selection. The module’s design prevents a non-selected channel from driving an analog signal to the field. In addition, ongoing diagnostics are performed on each channel and circuit of the module. Failure of any diagnostic test deactivates the faulty channel and activates the Fault indi- cator and the chassis alarm. The module Fault indicator merely indicates a channel fault, not a module failure. The module continues to operate prop- erly with as many as two channels failed. Open loop detection is provided by a LOAD indicator which activates if the module is unable to drive current to one or more outputs.

The module provides for redundant loop power sources with individual power and fuse indicators called PWR1 and PWR2. External loop power  supplies for analog outputs must be provided by the user. A LOAD indi- cator activates if an open loop is detected on one or more output points. PWR1 and PWR2 are on if loop power is present.

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Payment：T/T 100% in Advance

Lead Time : 3-5 Days

Minimum Order Quantity : 1 Piece

Warranty : 1 Year

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