ABB DO810 16 digital outputs

The DO810 is a 16 channel 24 V digital output module for the S800 I/O. This module has 16 digital outputs. The output voltage range is 10 to 30 volt and the maximum continuous output current is 0.5 A. The outputs are protected against short circuits, over voltage and over temperature. The outputs are divided into two individually isolated groups with eight output channels and one voltage supervision input in each group.

Each output channel consists of a short circuit and over temperature protected high side driver,

EMC protection components, inductive load suppression, output state indication LED and optical isolation barrier.

The process voltage supervision input give channel error signals if the voltage disappears.The error signal can be read through the ModuleBus.

The outputs are current limited and protected against over temperature. If the outputs are overloaded the output current will be limited. This means that the power dissipation in the output stage will increase and the output will shutdown if the temperature in the output stage increases above 150° C (302° F). The output will switch on again automatically as the component temperature has decreased to about 140° C (284° F). If any output is shutdown due to overload, the indication LED on that channel is also switched off. The output status of that channel cannot be read from the module.

Four different types of MTUs can be used. TU830 Extended MTU and TU810 (or TU814) Compact MTU have terminals for 24 V output power connections and two terminals per channels. The TU812 Compact MTU has a D-Sub 25 pin (male) connector for connection to the process.

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