Danfoss VLT HVACDrive Instruction Manual

Also see for VLT HVAC Drive FC 100 Series: Design guide Design guide Programming guide Design guide

Contents

Danfoss VLT HVACDrive Instruction Manual Manual pdf 15 page image

Voltage (V) Min. Waiting Time (Minutes)4 15 20 30 40200 - 240 1.5–5 hp [1.1–3.7 kW] 7.5–60 hp [5.5 –45 kW]380 - 480 1.5–10 hp [1.1–7.5 kW] 15–125 hp [11–90 kW] 150–350 hp [110–250kW]450–1350 hp [315–1000 kW]525-600 1.5–10 hp [1.1–7.5 kW] 15–125 hp [11–90 kW]525-690 15–125 hp [11–90 kW] 60–550 hp [45–400 kW] 600–1875 hp [450–1400 kW]Be aware that there may be high voltage on the DC link even when the LEDs are turned off.2.1.4 Before Commencing Repair Work1. Disconnect the adjustable frequency drive from line power.2. Disconnect DC bus terminals 88 and 893. Wait at least the time mentioned above in the section General Warning.4. Remove motor cable2.1.5 Special ConditionsElectrical ratings:The rating indicated on the nameplate of the adjustable frequency drive is based on a typical 3-phase line power supply within the specified voltage,current and temperature ranges, which are expected to be used in most applications.The adjustable frequency drives also support other special applications, which affect the electrical ratings of the adjustable frequency drive.Special conditions that affect the electrical ratings might be:• Single phase applications.• High temperature applications that require derating of the electrical ratings.• Marine applications with more severe environmental conditions.Other applications might also affect the electrical ratings.Consult the relevant sections in this manual and in the VLT HVAC DriveDesign Guide, MG.11.BX.YY for information about the electrical ratings.Installation requirements:The overall electrical safety of the adjustable frequency drive requires special installation considerations regarding:• Fuses and circuit breakers for overcurrent and short-circuit protection• Selection of power cables (line power, motor, brake, load sharing and relay)• Grid configuration (grounded delta transformer leg, IT,TN, etc.)• Safety of low-voltage ports (PELV conditions).Consult the relevant clauses in these instructions and in the VLT HVAC DriveDesign Guide for information about the installation requirements.VLT® HVAC Drive Instruction Manual 2 SafetyMG.11.AB.22 - VLT® is a registered Danfoss trademark 2-32