Danfoss VLT AutomationDrive FC 361 Series Design Manual

Also see for VLT AutomationDrive FC 361: Service guide Operating guide Programming guide Installation guide

Contents

Danfoss VLT AutomationDrive FC 361 Series Design Manual Manual pdf 40 page image

7 Electrical Installation Considerations7.1 Safety InstructionsSee chapter 2 Safety for general safety instructions.WARNINGINDUCED VOLTAGEInduced voltage from output motor cables from differentdrives that are run together can charge equipmentcapacitors even with the equipment turned off andlocked out. Failure to run output motor cables separatelyor use shielded cables could result in death or seriousinjury.• Run output motor cables separately or useshielded cables.• Simultaneously lock out all the drives.WARNINGSHOCK HAZARDThe drive can cause a DC current in the groundconductor and thus result in death or serious injury.• When a residual current-operated protectivedevice (RCD) is used for protection againstelectrical shock, only an RCD of Type B isallowed on the supply side.Failure to follow the recommendation means that theRCD cannot provide the intended protection.Overcurrent protection• Extra protective equipment such as short-circuitprotection or motor thermal protection betweendrive and motor is required for applications withmultiple motors.• Input fusing is required to provide short circuitand overcurrent protection. If fuses are notfactory-supplied, the installer must provide them.See maximum fuse ratings in chapter 7.5 Fusesand Circuit Breakers.Wire type and ratings• All wiring must comply with local and nationalregulations regarding cross-section and ambienttemperature requirements.• Power connection wire recommendation:Minimum 75 °C (167 °F) rated copper wire.See chapter 5.5 Cable Specifications for recommended wiresizes and types.CAUTIONPROPERTY DAMAGEProtection against motor overload is not included in thedefault setting. To add this function, setparameter 1-90 Motor Thermal Protection to [ETR trip] or[ETR warning]. For the North American market, the ETRfunction provides class 20 motor overload protection inaccordance with NEC. Failure to set parameter 1-90 MotorThermal Protection to [ETR trip] or [ETR warning] meansthat motor overload protection is not provided and, ifthe motor overheats, property damage can occur.Electrical Installation Con... VLT® AutomationDrive FC 36138 Danfoss A/S © 03/2019 All rights reserved. MG06K10277