Danfoss VLT FC 102 Series Design Manual

Also see for VLT HVAC Drive FC 102: Operating instructions Service guide Programming guide Installation guide Installation guide

Contents

Basic standard ElectricalinterferenceIEC 61000-4-4SurgeIEC 61000-4-5ESDIEC61000-4-2Radiated electromagneticfieldIEC 61000-4-3RF commonmode voltageIEC 61000-4-6Acceptance criterion B B B A AVoltage range: 200–240 V, 380–500 V, 525–600 V, 525–690 VLine 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 serialcommunication options 2 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 2.23 EMC Immunity Form1) Injection on cable shieldAD: Air DischargeCD: Contact DischargeCM: Common modeDM: Differential mode2.10 Galvanic Isolation (PELV)2.10.1 PELV - Protective Extra Low VoltagePELV offers protection by way of extra low voltage. Protection against electric shock is ensured when the electrical supply isof the PELV type and the installation is made as described in local/national regulations on PELV supplies.All control terminals and relay terminals 01-03/04-06 comply with PELV (Protective Extra Low Voltage), with the exception ofthe grounded Delta leg above 400 V.Galvanic (ensured) isolation is obtained by fulfilling requirements for higher isolation and by providing the relevantcreepage/clearance distances. These requirements are described in the EN 61800-5-1 standard.The components that make up the electrical isolation, as described below, also comply with the requirements for higherisolation and the relevant test as described in EN 61800-5-1. The PELV galvanic isolation can be shown in six locations (seeFigure 2.34):To maintain PELV all connections made to the control terminals must be PELV, e.g., thermistor must be reinforced/doubleinsulated.Introduction to VLT® HVAC D... Design GuideMG11BC22 Danfoss A/S © Rev. 06/2014 All rights reserved. 512 2