AO820 Separate electrical isolation channel ABB

The AO820 analog output module has 4 bipolar analog output channels. The current or voltage output selection for each channel is configurable. Voltage and current outputs have separate terminal groups, which are correctly connected by the user. The only difference between current or voltage channel configurations is the software setup.

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Description

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/D-converters the output data is read back and verified. The opencircuit 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.

AO820

Features and benefits
4 channels of -20 mA…+20 mA, 0…20 mA, 4…20 mA or -10 V…+10 V, 0…10 V, 2…10 V outputs
Individually galvanically isolated channels
OSP sets outputs to predetermined state upon error detection.”

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