ABB UFC760BE145 UF C760 BE145 Voltage monitoring module

Each supply is powered, direct on line, from a 3-phase AC input of up to 460V. The NMD10 has a continuous power rating of 10kVA (20kVA peak) and the NMD20 20kVA (40kVA peak). The DC output bus is routed to drives via jumper cables which are protected by a removable front plate. Both supplies have overheating protection and their outputs are also protected against undervoltage and overvoltage. A built-in supply phase monitoring system flashes a red LED if a phase failure occurs and will disable the system after 40s if the condition persists.

Power Supplies

Power suppy modules are the same size as the larger drive modules (SV0200M, SV0500M & SV1500M) and are designed for side-by-side mounting. The NMD20 is heavier than the NMD10, but occupies the same case size. You can also fit external ballast resistors to the NMD20, giving it the ability to handle high regenerated energy levels.3-Phase supply connections are made via X1 screw terminal block connector. The main protective earth connection is also made to this connector. It is recommended the supply connections are made using insulated copper conductors with a cross sectional area of at least 1.5mm2 (16awg tri-rated cable) and having a voltage rating of 1500V AC RMS

Power Out Connections (X2) 

DC power from the supply is routed to all associated drives via the X2 screw terminal block connector. These DC bus and protective earth connections are routed to drives via jumper cables, linking side-by-side mounted drives and supply modules by a series of short direct connections. The links used are supplied with the power supply (seeFigure 2-6). Control Connections X8 (7-way Phoenix) Signals associated with emergency stop and safety chain wiring are made via power supply (NMD10 and NMD20) control connector X8.

Common problem

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