Danfoss vlt series Operating Instructions Manual

Also see for VLT AutomationDrive FC 302: Service guide Programming guide Instruction manual Installation guide Operating guide

Contents

Danfoss vlt series Operating Instructions Manual Manual pdf 54 page image

3.4.18 Control Cable RoutingTie all control wires down to the designated control cablerouting. Remember to connect the shields in a proper wayto ensure optimum electrical immunity.Fieldbus connectionConnections are made to the relevant options on thecontrol card. For details, see the relevant fieldbusinstruction. Place the cable in the provided path inside thefrequency converter and tie it down with other controlwires.Installation of 24 V DC external supply• Torque: 0.5–0.6 Nm (5 in-lb)• Screw size: M3TerminalnumberFunction35 (-), 36 (+) 24 V DC external supplyTable 3.30 Terminals for 24 V DC external supply24 V DC external supply can be used as low voltage supplyto the control card and any option cards installed. Thisenables full operation of the LCP (including parametersetting) without connection to the mains. A warning of lowvoltage is given when 24 V DC has been connected;however, there is no tripping.NOTICETo ensure correct galvanic isolation (type PELV) on thecontrol terminals of the frequency converter, use 24 VDC PELV supply.3.4.19 Access to Control TerminalsAll terminals to the control cables are located beneath theLCP. They are accessed by opening the door of the IP21/IP54 unit, or by removing the covers of the IP00 unit.3.4.20 Wiring to Control TerminalsControl terminal connectors can be unplugged from thefrequency converter for ease of installation, as shown inIllustration 3.48.1432130BB921.12Illustration 3.48 Unplugging Control Terminals130BD546.112110 mm[0.4 inches]12 13 18 19 27 29 32 33Illustration 3.49 Connecting Control WiresNOTICETo minimize interference, keep control wires as short aspossible and separate from high-power cables.1. Open the contact by inserting a small screwdriverinto the slot above the contact and push thescrewdriver slightly upwards.2. Insert the bare control wire into the contact.3. To fasten the control wire into the contact,remove the screwdriver.4. Ensure that the contact is firmly established andnot loose. Loose control wiring can be the sourceof equipment faults or reduced performance.See chapter 5.4 Cable Specifications for control terminalwiring sizes and chapter 3.5 Connection Examples for typicalcontrol wiring connections.How to Install VLT® AutomationDrive FC 30252 Danfoss A/S © 04/2016 All rights reserved. MG34Q40233