Danfoss Metasys N2 Design Guide

Index
A
Abbreviations...................................................................................... 225
AC brake................................................................................................... 39
Acoustic noise..................................................................................... 190
Active reference.................................................................................. 200
Airow
Back-channel.............................................................................. 65, 66
Enclosure...................................................................................... 65, 66
External ducting............................................................................. 162
Required........................................................................................... 161
Alarm reset........................................................................................... 210
Altitude.................................................................................................. 163
Ambient conditions
Overview.......................................................................................... 159
Specications.................................................................................... 60
Analog
Input specications......................................................................... 61
Input/output descriptions and default settings................ 175
Output specications..................................................................... 62
Wiring
conguration for speed reference............................ 208
ATEX monitoring......................................................................... 23, 160
Auto on.................................................................................................. 200
Automatic energy optimization (AEO).......................................... 21
Automatic motor adaptation (AMA)
Overview............................................................................................. 22
Wiring conguration.................................................................... 208
Automatic switching frequency modulation............................. 21
B
Back-channel cooling....................................................................... 161
Bandwidth management.................................................................. 38
Brake resistor
Denition.......................................................................................... 225
Design guide........................................................................................ 5
Formula for rated power............................................................. 224
Ordering............................................................................................ 223
Overview............................................................................................. 44
Safety............................................................................................. 6, 187
Selecting........................................................................................... 186
Terminals.......................................................................................... 170
Wiring schematic........................................................................... 166
Braking
Control with brake function...................................................... 187
Dynamic braking.............................................................................. 39
Limits.................................................................................................. 187
Use as an alternative brake function...................................... 188
Branch circuit protection................................................................. 177
Break-away torque............................................................................. 225
Building management system (BMS)............................................ 27
C
Cable clamp......................................................................................... 171
Cables
Brake................................................................................................... 170
Control............................................................................................... 171
Equalizing......................................................................................... 172
Maximum number and size per phase.............................. 48, 54
Motor cables.................................................................................... 183
Opening............................................................................................... 67
Power connections....................................................................... 167
Routing.............................................................................................. 172
Shielding................................................................................. 169, 195
Specications...................................................................... 48, 54, 61
Type and ratings............................................................................ 165
Calculations
Brake resistance............................................................................. 187
Braking torque................................................................................ 187
Harmonic software....................................................................... 199
Resistor duty cycle........................................................................ 186
Scaled reference............................................................................. 201
Short-circuit ratio.......................................................................... 198
THDi.................................................................................................... 197
Capacitor storage............................................................................... 158
Cascade controller
Wiring diagram............................................................................... 213
CAV system............................................................................................. 32
CE mark....................................................................................................... 8
Central VAV systems............................................................................ 32
Circuit breaker.................................................................. 177, 181, 189
Closed loop................................................................................. 204, 205
CO2 sensor.............................................................................................. 32
Coasting................................................................................................. 238
Commercial environment............................................................... 193
Common-mode lter.......................................................................... 45
Compliance
Directives............................................................................................... 8
With ADN............................................................................................... 7
Condensation...................................................................................... 159
Condenser pumps................................................................................ 34
Conducted emission......................................................................... 192
Constant air volume............................................................................ 32
Control
Characteristics................................................................................... 63
Description of operation............................................................. 200
Structures......................................................................................... 204
Types of.................................................................................... 205, 206
Control cables............................................................................ 171, 175
Control card
Overtemperature trip point.................................................. 48, 54
RS485 specications....................................................................... 62
Specications.................................................................................... 64
Control terminals............................................................................... 173
Conventions.............................................................................................. 5
Index
VLT
®
HVAC Drive FC 102
244 Danfoss A/S © 11/2017 All rights reserved. MG16C302

Danfoss Metasys N2 Specifications

General

Brand	Danfoss
Model	Metasys N2
Category	DC Drives
Language	English