Dmi; System Concept - Eaton NZM2 Manual

11/04 MN01219002Z-EN

System concept

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DMI

The DMI is the Data Management Interface for NZM circuit-
breakers of frame sizes 2, 3 and 4. It supports user-friendly
and local
• Parameter setting,
• Operation and
• Monitoring of the circuit-breakers,
as well as
• Interrogation and
• Control of other components in the vicinity such as
auxiliary contacts or motor operators.
In combination with circuit-breaker types for motor-
protection (NZMx-ME...) it can also be used for the user-
friendly implementation of motor starter functions.
Pluggable interface modules enable the DMI to access
different fieldbus systems. All locally available data can be
called to other locations (PLC, control room).
The design and operation of the DMI is based on that of the
easy control relay, so you will become familiar with the DMI
quickly and easily if you have a previous knowledge of this
control relay. However, even without a knowledge of easy,
operation is also simplified thanks to the clearly structured
menu concept.
Unlike control relays or PLCs, logic operations or sequences
cant be programmed in the DMI. It is primarily used for
providing the communication connection to the NZM circuit-
breakers. It is therefore not provided with a programming
interface but simply a configurator.
The DMI also does not have Run and Stop operating states
in the same way as control devices do. The DMI starts to
operate as soon as the power supply is switched on.
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