Danfoss VLT Series Quick Manual
Also see for VLT series: Service manualInstallation guideOperating instructionsOperating instructionsService manual
                                     | |
Contents
| 
1 Quick Guide1.1 Safety1.1.1 WarningsWARNINGHigh Voltage WarningThe voltage of the frequency converter is dangerouswhenever it is connected to mains. Incorrect installation ofthe motor or frequency converter may cause damage tothe equipment, serious injury or death. Consequently, it isessential to comply with the instructions in this manual aswell as local and national rules and safety regulations.WARNINGDISCHARGE TIME!Frequency converters contain DC-link capacitors that canremain charged even when the frequency converter is notpowered. To avoid electrical hazards, disconnect AC mains,any permanent magnet type motors, and any remote DC-link power supplies, including battery backups, UPS andDC-link connections to other frequency converters. Wait forthe capacitors to fully discharge before performing anyservice or repair work. The amount of wait time is listed inthe Discharge Time table. Failure to wait the specified timeafter power has been removed before doing service orrepair could result in death or serious injury.Voltage [V] Power range [kW] Minimum waiting time[min]3x400 0.37–7.5 43x400 11–90 15Table 1.1 Discharge TimeCAUTIONLeakage Current:The earth leakage current from the frequency converterexceeds 3.5 mA. According to IEC 61800-5-1 a reinforcedProtective Earth connection must be ensured by means ofa min. 10 mm² Cu or an additional PE wire - with the samecable cross section as the Mains wiring - must beterminated separately.Residual Current Device:This product can cause a DC current in the protectiveconductor. Where a residual current device (RCD) is usedfor extra protection, only an RCD of Type B (time delayed)shall be used on the supply side of this product. See alsoDanfoss Application Note on RCD, Protection againstElectrical Hazard.Protective earthing of the frequency converter and the useof RCDs must always follow national and local regulations.Motor Thermal ProtectionMotor overload protection is possible by setting 1-90 MotorThermal Protection to the value Electronic Thermal Relay(ETR) trip.WARNINGInstallation at high altitudesFor altitudes above 2 km, contact Danfoss regarding PELV.1.1.2 Safety Instructions• Make sure the frequency converter is properlyconnected to earth.• Do not remove mains connections, motorconnections or other power connections whilethe frequency converter is connected to power.• Protect users against supply voltage.• Protect the motor against overloading accordingto national and local regulations.• The earth leakage current exceeds 3.5 mA.• The [Off/Reset] key is not a safety switch. It doesnot disconnect the frequency converter frommains.Quick Guide VLT® HVAC Basic Drive Cascade Controller Quick Guide2 MG18F402 - VLT® is a registered Danfoss trademark11 |
Related manuals for Danfoss VLT series
This manual is suitable for:
manualsdatabase
Your AI-powered manual search engine