Nidec Unidrive M400 series Quick Start Manual

Also see for Unidrive M400 series: Power Installation Guide Installation sheet User guide Step-by-step guide Step-by-step guide

Nidec Unidrive M400 series Quick Start Manual Manual pdf 14 page image

14 Unidrive M400 Quick Start GuideIssue Number: 84 Electrical installationAn overlay of the electrical connections / terminals is included on the back page of this manual.4.1 AC supply requirementsVoltage:100 V drive: 100 V to 120 V ±10 %200 V drive: 200 V to 240 V ±10 %400 V drive: 380 V to 480 V ±10 %Number of phases: 3Maximum supply imbalance: 2 % negative phase sequence (equivalent to 3 % voltage imbalancebetween phases).Frequency range: 45 to 66 HzFor UL compliance only, the maximum supply symmetrical fault current must be limited to 100 kA.4.2 External braking resistor4.2.1 Minimum resistance values and peak power rating for the braking resistorat 40 °C (104 °F)Table 4-1 Braking resistor resistance and power rating (100 V)* Resistor tolerance: ±10 %On the size 2 110 V drives or when connecting single phase to a dual rated 200 V unit, thesupply should be connected to L1 and L3. Also the DC bus (-) terminal on 110 V driveshas no internal connection. The 110 V drives use a voltage doubler circuit on the input,therefore the default for Motor Rated Voltage (00.008) is 230 V.Overload protectionWhen an external braking resistor is used, it is essential that an overload protection deviceis incorporated in the braking resistor circuit; as shown in the electrical diagram on theback cover.ModelMinimumresistance*ΩInstantaneouspower ratingkWContinuouspower ratingkW01100017 130 1.1 0.2501100024 0.3702100042 68 2.2 0.7502100056 1.1NOTEWARNING