Danfoss VLT ISD Connection Box Operating Instructions Manual

Danfoss VLT ISD Connection Box Operating Instructions Manual Manual pdf 13 page image

be prevented, for example by using the Safe Stopfunction or by safe disconnection of theservomotors.• Do not disconnect the cables from theservomotor while the servo system is connectedto mains voltage. Ensure that the mains supply isdisconnected and the required waiting time haselapsed before disconnecting or connecting thehybrid cable or disconnecting cables from theconnection box and/or the power supply module.• In addition to the L1, L2 and L3 supply voltageinputs on the power supply module, the servosystem has other supply voltage inputs, includingexternal 24 V DC. Before commencing repairwork, check that all supply voltage inputs havebeen switched off and that the necessarydischarge time for the intermediate circuitcapacitors has elapsed.• The supply of power to the servo system must beswitched off for repair work. Before disconnectingor connecting the hybrid cable or disconnectingcables from the connection box and/or the powersupply module, ensure that the mains supply isdisconnected and the necessary discharge timehas elapsed.WARNINGDISCHARGE TIMEThe servomotors, the connection box and the powersupply module contain DC link capacitors, that remaincharged for some time after the mains supply is switchedoff at the power supply module.To avoid electrical shock, fully disconnect the powersupply module from the mains before carrying out anymaintenance on the ISD servo system or its components.Wait for at least the time listed below before carrying outmaintenance work:Number Minimum waiting time (discharge time)0-60 servomotors 10 minutesNote: High voltage may still be present even if the LED on theISD connection box is not lit!Table 3.1 Discharge TimeCAUTIONNever connect or disconnect the hybrid cable to or fromthe servomotor when voltage is present. Doing so willdamage the electronic circuitry. Observe the dischargetime for the DC link capacitors.3.4 Qualified PersonnelInstallation, commissioning and maintenance of theISD 410 servo system may only be carried out by qualifiedpersonnel.For the purposes of this document and the safetyinstructions in this document, qualified personnel aretrained personnel who are authorised to fit, install,commission, earth and label equipment, systems andcircuits in accordance with the standards for safetytechnology and who are familiar with the safety conceptsof automation engineering.Additionally, the personnel must be familiar with all theinstructions and safety measures described in theseoperating instructions.They must have suitable safety equipment and be trainedin first aid.3.5 Due DiligenceThe operator and/or fabricator must ensure that:• the servo system and its components are usedonly as intended.• the components are operated only in a perfectoperational condition.• the operating instructions are always availablenear the servo system in complete and readableform.• the servo system and its components are fitted,installed, commissioned and maintained only byadequately qualified and authorised personnel.• these personnel are regularly instructed on allrelevant matters of occupational safety andenvironmental protection, as well as the contentsof the operating instructions and in particular theinstructions it contains.• the product markings and identification markingsapplied to the components, as well as safety andwarning instructions, are not removed and arealways kept in a legible condition.• the national and international regulationsregarding the control of machinery andequipment, that are applicable at the place of useof the servo system, are complied with.• the users always have all current informationrelevant to their interests about the servo systemand its use and operation.Safety instructions VLT® ISD Connection Box Operating InstructionsMG75G102 - VLT® is a registered Danfoss trademark 113 3