Specifications

MCD3000 Series
MG.15.A4.22 - VLT is a registered Danfoss trademark 1
Contents
Section 0.0 ■ Warnings ............................................................ 2
Section 1.0 ■ Quick Set-up .................................................... 3
Section 2.0 ■ Description ....................................................... 4
Section 3.0 ■ Installation
3.1 Mechanical Installation ..................................... 6
3.2 Ventilation ........................................................ 6
3.3 General Layout ................................................ 6
3.4 Power Wiring - Standard Connection ............... 7
3.5 Power Wiring - Bypass Connection .................. 7
3.6 Power Wiring - D.C.Brake Connection .............. 8
3.7 Power Wiring – Inside Delta Connection ........... 8
3.8 Control Supply Voltage .................................... 9
3.9 Control Wiring ................................................. 9
3.10 Motor Thermistors ....................................... 10
3.11 Control Circuit Examples ............................. 10
3.12 Serial Communications ................................ 12
Section 4.0 ■ Programming
4.1 Programming Procedure ............................... 17
4.2 Programmable Functions ............................... 17
Section 5.0 ■ Operation
5.1 Local Control Panel ....................................... 29
5.2 Remote Control ............................................. 30
5.3 Serial Communications .................................. 30
5.4 Restart Delay ................................................. 30
5.5 Secondary Parameter Set .............................. 30
5.6 Motor Thermal Model .................................... 30
5.7 Pre-start Tests ............................................... 30
5.8 Operation After Power Loss ........................... 30
Section 6.0 ■ Specifications
6.1 General Technical Data .................................. 31
6.2 Current Ratings ............................................. 32
6.3 Power Termination Details ............................. 33
6.4 Semi-conductor Fuses .................................. 33
6.5 Dimensions/Weights ...................................... 34
Section 7.0 ■ Design Guide
7.1 Reduced Voltage Starting .............................. 35
7.2 Types Of Soft Start Control ............................ 36
7.3 MCD3000 Control Principles ......................... 36
7.4 Understanding Soft Starter Ratings ............... 37
7.5 Model Selection ............................................. 37
7.6 Typical Applications ....................................... 39
7.7 Power Factor Correction ............................... 40
7.8 Line Contactors ............................................. 40
7.9 Soft Braking .................................................. 40
Section 8.0 ■ Fault Procedure
8.1 Trip Codes .................................................... 42
8.2 Trip Log ......................................................... 44
8.3 General Faults ............................................... 44
8.4 Tests and Measurement Procedures ............. 45