Danfoss VLT FC 100 Manual

Also see for FC 100 Series: Operating instructions Instruction manual Manual Manual Programming guide

Danfoss VLT FC 100 Manual Manual pdf 5 page image

2. Safety2.1. Safety2.1.1. Safety noteThe voltage of the frequency converter is dangerous whenever connected to mains.Incorrect installation of the motor, frequency converter or fieldbus may cause dam-age to the equipment, serious personal injury or death. Consequently, the instruc-tions in this manual, as well as national and local rules and safety regulations, mustbe complied with.Safety Regulations1. The frequency converter must be disconnected from mains if repair work is to be carried out.Check that the mains supply has been disconnected and that the necessary time has passed beforeremoving motor and mains plugs.2. The [STOP/RESET] key on the control panel of the frequency converter does not disconnectthe equipment from mains and is thus not to be used as a safety switch.3. Correct protective earthing of the equipment must be established, the user must be protectedagainst supply voltage, and the motor must be protected against overload in accordance withapplicable national and local regulations.4. The earth leakage currents are higher than 3.5 mA.5. Protection against motor overload is set bypar. 1-90 Motor Thermal Protection. If this functionis desired, set par. 1-90 to data value [ETR trip] (default value) or data value [ETR warning]. Note:The function is initialised at 1.16 x rated motor current and rated motor frequency. For the NorthAmerican market: The ETR functions provide class 20 motor overload protection in accordancewith NEC.6. Do not remove the plugs for the motor and mains supply while the frequency converter isconnected to mains. Check that the mains supply has been disconnected and that the necessarytime has passed before removing motor and mains plugs.7. Please note that the frequency converter has more voltage inputs than L1, L2 and L3, whenload sharing (linking of DC intermediate circuit) and external 24 V DC have been installed. Checkthat all voltage inputs have been disconnected and that the necessary time has passed beforecommencing repair work.Installation at High AltitudesBy altitudes above 2 km, please contact Danfoss Drives regarding PELV.Warning against Unintended Start1. The motor can be brought to a stop by means of digital commands, bus commands, referencesor a local stop, while the frequency converter is connected to mains. If personal safety consider-ations make it necessary to ensure that no unintended start occurs, these stop functions are notsufficient. 2. While parameters are being changed, the motor may start. Consequently, the stopkey [STOP/RESET] must always be activated; following which data can be modified. 3. A motorthat has been stopped may start if faults occur in the electronics of the frequency converter, or ifa temporary overload or a fault in the supply mains or the motor connection ceases.VLT® FC 100 LonWorks 2. SafetyMG.11.E1.02 - VLT® is a registered Danfoss trademark 52