User Notes; Target Group; Proper Use - Eaton NZM2 Manual

11/04 MN01219002Z-EN

Target group

Proper use

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User Notes

This manual describes the communication link between the
NZM2, 3, and 4 circuit-breakers,
• a local Data Management Interface (DMI) and
• a fieldbus system.
The communication system allows the user to interrogate
diagnostics and operating data, log current values,
implement the parameter assignment and control of the
circuit-breakers locally or via a network.
The DMI must only be installed and connected by qualified
persons or persons familiar with the installation of electrical
systems.
A knowledge of electrical engineering is required for
commissioning to be properly executed. Incorrect
connections may cause damage to sections of the system or
danger to persons when active components such as motors
or pressure cylinders are activated.
The DMI is a communication component for the NZM
compact circuit-breakers. Operation is only permissible after
proper installation.
• The DMI is a rail-mounted device and must be installed in
an enclosure, control panel or service distribution board.
The power supply and signal terminals must be protected
against accidental contact and must be covered.
• Installation must be carried out in compliance with the
necessary EMC requirements.
• The switching on of the DMI must not cause any hazards
due to the activation of devices, such as unforeseen motor
start-ups or unexpected voltage connections.
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