Danfoss VLT 380-500 V Design Manual

Contents

Danfoss VLT 380-500 V Design Manual Manual pdf 98 page image

9.4 Immunity RequirementsThe immunity requirements for frequency converters depend on the environment where they are installed. Therequirements for the industrial environment are higher than the requirements for the home and office environment. AllDanfoss frequency converters comply with the requirements for both the industrial and the home/office environment.To document immunity against electrical interference, the following immunity tests have been performed on a frequencyconverter (with options if relevant), a shielded control cable and a control box with potentiometer, motor cable, and motor.The tests were performed in accordance with the following basic standards. For more details, see Table 9.5.• EN/IEC 61000-4-2: Electrostatic discharges (ESD): Simulation of electrostatic discharges from human beings.• EN/IEC 61000-4-3: Incoming electromagnetic field radiation, amplitude modulated simulation of the effects ofradar and radio communication equipment, as well as mobile communications equipment.• EN/IEC 61000-4-4: Burst transients: Simulation of interference brought about by switching a contactor, relay, orsimilar devices.• EN/IEC 61000-4-5: Surge transients: Simulation of transients brought about by lightning strikes near installations.• EN/IEC 61000-4-6: RF common mode: Simulation of the effect from radio-transmission equipment joined byconnection cables.Basic standard BurstIEC 61000-4-4SurgeIEC 61000-4-5ESDIEC61000-4-2Radiatedelectromagnetic fieldIEC 61000-4-3RF commonmode voltageIEC 61000-4-6Acceptance criterion B B B A ALine 4 kV CM 2 kV/2 Ω DM4 kV/12 Ω CM – – 10 VRMSMotor 4 kV CM 4 kV/2 Ω1) – – 10 VRMSBrake 4 kV CM 4 kV/2 Ω1) – – 10 VRMSLoad sharing 4 kV CM 4 kV/2 Ω1) – – 10 VRMSControl wires 2 kV CM 2 kV/2 Ω1) – – 10 VRMSStandard bus 2 kV CM 2 kV/2 Ω1) – – 10 VRMSRelay wires 2 kV CM 2 kV/2 Ω1) – – 10 VRMSApplication and Fieldbusoptions2 kV CM 2 kV/2 Ω1) – – 10 VRMSLCP cable 2 kV CM 2 kV/2 Ω1) – – 10 VRMSExternal 24 V DC 2 V CM 0.5 kV/2 Ω DM1 kV/12 Ω CM – – 10 VRMSEnclosure – – 8 kV AD6 kV CD 10 V/m –Table 9.5 EMC Immunity Form, Voltage Range: 380–500 V, 525–600 V, 525–690 V1) Injection on cable shield.AD: Air Discharge; CD: Contact Discharge; CM: Common mode; DM: Differential mode.EMC and Harmonics VLT® Parallel Drive Modules96 Danfoss A/S © 6/2016 All rights reserved. MG37N10299