Danfoss VLT HVAC Drive FC 102 Operating Instructions Manual

Also see for VLT HVAC Drive FC 102: Operating instructions Service guide Programming guide Installation guide Installation guide

Contents

2 SafetyThe following symbols are used in this document:WARNINGIndicates a potentially hazardous situation which couldresult in death or serious injury.CAUTIONIndicates a potentially hazardous situation which couldresult in minor or moderate injury. It can also be used toalert against unsafe practices.NOTICEIndicates important information, including situations thatcan result in damage to equipment or property.2.1 Qualified PersonnelCorrect and reliable transport, storage, installation,operation, and maintenance are required for the trouble-free and safe operation of the frequency converter. Onlyqualified personnel are allowed to install or operate thisequipment.Qualified personnel are defined as trained staff, who areauthorised to install, commission, and maintain equipment,systems, and circuits in accordance with pertinent laws andregulations. Additionally, the personnel must be familiarwith the instructions and safety measures described inthese operating instructions.2.2 Safety RegulationsWARNINGHIGH VOLTAGEFrequency converters contain high voltage whenconnected to AC mains input, DC power supply, or loadsharing. Failure to perform installation, start-up, andmaintenance by qualified personnel can result in deathor serious injury.• Installation, start-up, and maintenance must beperformed by qualified personnel only.WARNINGUNINTENDED STARTWhen the frequency converter is connected to AC mains,DC power supply, or load sharing, the motor may start atany time. Unintended start during programming, service,or repair work can result in death, serious injury, orproperty damage. The motor can start by means of anexternal switch, a serial bus command, an inputreference signal from the LCP, or after a cleared faultcondition.To prevent unintended motor start:• Disconnect the frequency converter from themains.• Press [Off/Reset] on the LCP beforeprogramming parameters.• The frequency converter, motor, and any drivenequipment must be fully wired and assembledwhen the frequency converter is connected toAC mains, DC power supply, or load sharing.2.2.1 Discharge TimeVoltage [V] Minimum waiting time (minutes)30 40380-500 V 315-1000 kW525-600 V 400-1400 kWTable 2.1 Discharge TimeWARNINGLEAKAGE CURRENT HAZARDLeakage currents exceed 3.5 mA. Failure to ground thefrequency converter properly can result in death orserious injury.• Ensure the correct grounding of the equipmentby a certified electrical installer.Safety Operating InstructionsMG16B202 Danfoss A/S © Rev. 06/2014 All rights reserved. 72 2