Introduction To Vlt Hvac Drive; Disposal Instruction; Software Version - Danfoss VLT Series Design Manual

®
VLT HVAC Drive Design Guide

2. Introduction to VLT HVAC Drive

2.1. Safety
2.1.1. Caution
The frequency converter DC link capacitors remain charged after power has been disconnec-
ted. To avoid an electrical shock hazard, disconnect the frequency converter from the mains
before carrying out maintenance. Wait at least as follows before doing service on the fre-
quency converter:
Voltage
200 - 240 V
380 - 480 V
525 - 600 V
Be aware that there may be high voltage on the DC link even when the LEDs are turned off.

2.1.2. Disposal Instruction

2.2. Software Version

This Design Guide can be used for all VLT HVAC frequency converters with software version
1.xx.
The software version number can be seen from parameter 15-43.
Caution
4 min.
1.1 - 3.7 kW
1.1 - 7.5 kW
1.1 - 7.5 kW
Equipment containing electrical components may not be disposed of
together with domestic waste.
It must be separately collected with Electrical and Electronic waste
according to local and currently valid legislation.
VLT HVAC
Design Guide
Software version: 1.xx
®
MG.11.B2.02 - VLT is a registered Danfoss trademark
2. Introduction to VLT HVAC Drive
Min. Waiting Time
15 min.
5.5 - 45 kW
11 - 90 kW
2
13