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 37 page image

30 A, fuse-protected terminals• 3-phase power matching incoming mains voltagefor powering auxiliary customer equipment.• Not available if 2 manual motor starters areselected.• Terminals are off when the incoming power tothe frequency converter is off.• Power for the fused protected terminals isprovided from the load side of any suppliedcircuit breaker or disconnect switch.24 V DC supply• 5 A, 120 W, 24 V DC.• Protected against output overcurrent, overload,short circuits, and overtemperature.• For powering 3rd party accessory devices such assensors, PLC I/O, contactors, temperature probes,indicator lights, and/or other electronic hardware.• Diagnostics include a dry DC-ok contact, a greenDC-ok LED, and a red overload LED.External temperature monitoringDesigned for monitoring temperatures of external systemcomponents, such as the motor windings and/or bearings.Includes 8 universal input modules plus 2 dedicatedthermistor input modules. All 10 modules are integratedinto the frequency converter’s STO circuit and can bemonitored via a fieldbus network (requires a separatemodule/bus coupler).Universal inputs (8) – signal types• RTD inputs (including Pt100), 3-wire, or 4-wire.• Thermocouple.• Analog current or analog voltage.Extra features:• 1 universal output, configurable for analogvoltage, or analog current.• 2 output relays (NO).• Dual-line LC display and LED diagnostics.• Sensor lead wire break, short circuit, and incorrectpolarity detection.• Interface set-up software.Dedicated thermistor inputs (2) – featuresNOTICEIf the frequency converter is connected to a thermistor,the thermistor control wires must be reinforced/doubleinsulated for PELV isolation. A 24 V DC supply for thethermistor power is recommended.• Each module can monitor up to 6 thermistors inseries.• Fault diagnostics for wire breakage or shortcircuits of sensor leads.• ATEX/UL/CSA certification.• A third thermistor input can be provided by theVLT® PTC Thermistor Card MCB 112, if necessary.3.4 Electrical InstallationSee chapter 2 Safety Instructions for general safetyinstructions.WARNINGHIGH VOLTAGEFrequency converters contain high voltage whenconnected to AC mains input, DC supply, or load sharing.Failure to perform installation, start-up, and maintenanceby qualified personnel can result in death or seriousinjury.• Only qualified personnel must perform instal-lation, start-up, and maintenance.WARNINGINDUCED VOLTAGEInduced voltage from output motor cables from differentfrequency converters that are run together can chargeequipment capacitors even with the equipment turnedoff and locked out. Failure to run output motor cablesseparately or use shielded cables could result in death orserious injury.• Run output motor cables separately, or• Use shielded cables.• Simultaneously lock out all the frequencyconverters.WARNINGSHOCK HAZARDThe frequency converter can cause a DC current in thePE conductor and thus result in death or serious injury.• When a residual current-operated protectivedevice (RCD) is used for protection againstelectrical shock, only an RCD of Type B ispermitted on the supply side.Failure to follow the recommendation means that theRCD cannot provide the intended protection.Overcurrent protection• Extra protective equipment such as short-circuitprotection or motor thermal protection betweenfrequency converter and motor is required forapplications with multiple motors.• Input fusing is required to provide short circuitand overcurrent protection. If fuses are notfactory-supplied, the installer must provide them.See maximum fuse ratings in chapter 3.4.13 Fuses.How to Install Operating InstructionsMG34Q402 Danfoss A/S © 04/2016 All rights reserved. 353 3