Danfoss VLT DeviceNet MCA 104 Programming Manual

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Danfoss VLT DeviceNet MCA 104 Programming Manual Manual pdf 7 page image

2 Safety2.1 Safety SymbolsThe following symbols are used in this manual:WARNINGIndicates a potentially hazardous situation that couldresult in death or serious injury.CAUTIONIndicates a potentially hazardous situation that 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.2.2 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 and operate thisequipment.Qualified personnel are defined as trained staff, who areauthorized to install, commission, and maintain equipment,systems, and circuits in accordance with pertinent laws andregulations. Additionally, the qualified personnel must befamiliar with the instructions and safety measuresdescribed in these operating instructions.2.3 Safety PrecautionsWARNINGHIGH VOLTAGEFrequency converters contain high voltage whenconnected to AC mains input, DC supply, or load sharing.Failure to perform installation, start-up, and maintenanceby qualified personnel can result in death or seriousinjury.• Only qualified personnel must perform instal-lation, start-up, and maintenance.WARNINGUNINTENDED STARTWhen the frequency converter is connected to AC mains,DC supply, or load sharing, the motor may start at anytime. Unintended start during programming, service, orrepair work can result in death, serious injury, orproperty damage. The motor can start with an externalswitch, a fieldbus command, an input reference signalfrom the LCP or LOP, via remote operation using MCT 10Set-up Software, or after a cleared fault condition.To prevent unintended motor start:• Press [Off/Reset] on the LCP beforeprogramming parameters.• Disconnect the frequency converter from themains.• Completely wire and assemble the frequencyconverter, motor, and any driven equipmentbefore connecting the frequency converter toAC mains, DC supply, or load sharing.WARNINGDISCHARGE TIMEThe frequency converter contains DC-link capacitors thatcan remain charged even when the frequency converteris not powered. Failure to wait the specified time afterpower has been removed before performing service orrepair work can result in death or serious injury.• Stop the motor.• Disconnect the AC mains and remote DC-linksupplies, including battery back-ups, UPS, andDC-link connections to other frequencyconverters.• Disconnect or lock the PM motor.• Wait for the capacitors to discharge fully beforeperforming any service or repair work. Thewaiting time is specified in the relevantfrequency converter operating instructions,Chapter 2 Safety.WARNINGLEAKAGE 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 Programming GuideMG92F102 Danfoss A/S © 12/2015 All rights reserved. 52 2