ABB | AO820 3BSE008546R1 | Analog Output Module

Product Description:

The AO820 Bipolar Analog Output Module has 4 bipolar current or voltage outputs. The choice of either current or voltage output is configurable per channel. Outputs are individually galvanically isolated. State of outputs can be set to a predetermined (OSP) value if a communication error is detected. Nominal output range are: -20... +20 mA, 0(4)... +20 mA, -10... +10 V, 0(2)... +10 V. 
The AO820 Analog Output Module has 4 bipolar analog output channels. The choice of current or voltage output is configurable for each channel. There are separate sets of terminals for voltage and current outputs, and it is up to the user to wire outputs properly. The only differences between current or voltage channel configuration is in software settings. To supervise the communication to the A/Dconverters the output data is read back and verified. The open-circuit diagnostics are read continuously as well. The process voltage supervision input give channel error signals if the voltage disappears.The error signal can be read via the ModuleBus. The Channel diagnostics include fault detection of the channel (only reported on active channels). The error is reported if the output current differ from the output set value (that is, open wire condition). 

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