Contents
1. How to Read this Design Guide
5
How to Read this Design Guide
5
Approvals
5
Symbols
6
Abbreviations
6
Definitions
7
2. Introduction to VLT HVAC Drive
13
Disposal Instruction
13
Software Version
13
CE labelling
14
Air humidity
15
Aggressive Environments
15
Vibration and shock
16
VLT HVAC Controls
28
PID
30
General aspects of EMC
41
Galvanic isolation (PELV)
44
Earth leakage current
45
Control with brake function
45
Mechanical brake control
47
Extreme running conditions
47
3. VLT HVAC Selection
49
Electrical Data
49
General Specifications
54
Peak Voltage on Motor
60
Efficiency
61
Peak Voltage on Motor
62
Special Conditions
63
Purpose of derating
63
Automatic adaptations to ensure performance
65
Mechanical Dimension
66
Options and Accessories
68
4. How to Order
79
Ordering form
79
Type Code String
80
Ordering Numbers
81
VLT
®
HVAC Drive Design Guide
Contents
MG.11.B2.02 - VLT
®
is a registered Danfoss trademark
1
