Danfoss MCD3000 Series, Manual, Page: 1 / 54

MCD3000 Series
MG.15.B2.02 – VLT is a registered Danfoss trademark 1
Contents
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Warnings
...................................................................... 3
Section 1.0
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Spare Parts
1.1 Main Control Module .............................................. 4
1.2 Identity Module (Line Connection) ....................... 5
1.3 Identity Module (Inside Delta Connection) .......... 6
1.4 Snubber/Overvoltage Protection Module ........... 7
1.5 SCRs / Power Assemblies .................................... 9
1.6 Cooling Fans .......................................................... 12
1.7 Power Transformers ............................................. 13
Section 2.0
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Tests
2.1 Start Performance Test ........................................ 15
2.2 Run Performance Test ......................................... 15
2.3 Power Circuit Test ................................................ 15
2.4 Control Input Test ................................................. 16
2.5 Power Transformer Test ...................................... 16
Section 3.0
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Component Replacement Procedures
3.1 Main Control Module
3007~3132 .............................................................. 17
3185~3800 .............................................................. 17
3.2 Identity Module
3007~3132 .............................................................. 18
3185~3800 .............................................................. 18
3.3 Snubber/Overvoltage Protection Module
3007~3055 .............................................................. 19
3075~3132 .............................................................. 19
3185~3500 .............................................................. 20
3600~3800 .............................................................. 22
3.4 SCR / Power Assemblies
3007~3132 .............................................................. 23
3185~3800 .............................................................. 25
3.5 Cooling Fans
3030~3055 .............................................................. 27
3075~3110 .............................................................. 29
3132 .......................................................................... 31
3185~3800 .............................................................. 33
3.6 Power Transformers
3007~3055 .............................................................. 34
3075~3110 .............................................................. 35
3132~ ....................................................................... 36
3185~3800 .............................................................. 37
Section 4.0
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Schematics
4.1 3007~3022 T5 ....................................................... 39
4.2 3030~3055 T5 .........................................................40
4.3 3075~3110 T5 .........................................................41
4.4 3132 T5 ....................................................................42
4.5 3185~3500 T5 .........................................................43
4.6 3600~3800 T5 .........................................................44
4.7 3007~3022 T7 ........................................................ 45