Danfoss VLT Series Service Manual page 6

Figure Title
Exploded View D1 Frame Size .................................................................................................Intro-4
Exploded View D2 Frame Size .................................................................................................Intro-5
Exploded View E Frame Size ...................................................................................................Intro-6
1-1. Control Terminals ......................................................................................................................... 1-8
1-2. Control Terminals Electrical Diagram ............................................................................................1-10
1-3. Grounding Shielded Cables ......................................................................................................... 1-11
2-1. Control Card Logic ....................................................................................................................... 2-1
2-2. Logic Section ................................................................................................................................ 2-1
2-3. Typical Power Section .................................................................................................................. 2-3
2-4. Rectifier Circuit ............................................................................................................................. 2-5
2-5. Intermediate Section ..................................................................................................................... 2-7
2-6. Output Voltage and Wave Forms ................................................................................................... 2-8
2-7. Inverter Section ............................................................................................................................ 2-9
2-8. Brake Operation .......................................................................................................................... 2-10
4-1. Adjustable Frequency Drive Functionality Diagram ....................................................................... 4-5
4-2. Ground Currents .......................................................................................................................... 4-6
4-3. Signal Conductor Currents ........................................................................................................... 4-6
4-4. Alternate Signal Conductor Currents ............................................................................................. 4-7
4-5. Proper ECM Installation ................................................................................................................ 4-8
5-1. Interface PCA and Power PCA Connector Identification ................................................................. 5-2
5-2. Soft Charge Card Fuses .............................................................................................................. 5-3
5-3. Soft Charge Card Connectors ...................................................................................................... 5-5
5-4. Soft Charge Card Fuse Location .................................................................................................. 5-6
5-5. Soft Charge Card Connectors ...................................................................................................... 5-8
5-6. Fan Transformer and Fuse Location ........................................................................................... 5-11
5-7. Fan and DC Bus Fuse Locations ................................................................................................ 5-12
5-8. Drive Power Terminals (D-size Frames) .....................................................................................5-13
5-9. Normal AC Input Voltage Waveform ............................................................................................. 5-17
5-10. AC Input Current Waveform with Diode Bridge............................................................................. 5-17
5-11. Input Current Waveform with Phase Loss .....................................................................................5-18
5-12. SCR Gate Signal .........................................................................................................................5-19
5-13. Gate Drive Card Test Connectors ................................................................................................ 5-21
5-14. Gate Signal Waveform from Gate Drive Card ............................................................................... 5-22
5-15. Gate Signal Waveform from Signal Test Board.............................................................................. 5-23
5-16. Control Card Test Connections .................................................................................................... 5-28
6-1. Control Card Cassette .................................................................................................................. 6-1
6-2. Interface Card, Power Card, and Mounting Plate .......................................................................... 6-2
6-3. Gate Drive Card........................................................................................................................... 6-3
6-4. Soft Charge Card Assy ................................................................................................................. 6-3
6-5. D2 Upper and Lower Capacitor Bank Assemblies ......................................................................... 6-4
6-6. D1 Single Capacitor Bank Assembly ............................................................................................. 6-5
6-7. D2 Soft Charge Resistor ............................................................................................................... 6-6
6-8. D1 Soft Charge Resistor ............................................................................................................... 6-7
6-9. Input Terminal Mounting Plate Assy .............................................................................................. 6-10
6-10. D2 SCR/Diode Module ............................................................................................................... 6-11
6-11. D1 SCR/Diode Module ...............................................................................................................6-15
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List of Figures
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