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VLT AAF006
Danfoss VLT AAF006 Service Manual
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MAKING MODERN LIVING POSSIBLE
VLT
®
Advanced Active Filter
AAF006 D and E Frame
Service Manual
www.danfoss.com/drives
*MG90Z122*
130R0268
MG90Z122
Rev. 2012-04-20
97
Table of Contents
Table of Contents
2
Introduction
8
VLT Active Filter Product Overview
8
For Your Safety
8
Warnings
8
Electrostatic Discharge (ESD)
8
Frame Size Definitions
9
Rating Tables
10
Fuses
11
Current Transducers
11
General Torque Tightening Values
12
Tools Required
12
Exploded Views
13
Exploded Views E-Frame
13
Operator Interface and Active Filter Control
14
Introduction
14
User Interface
14
LCP Layout
14
Setting LCP Display Values
15
Display Menu Keys
15
Navigation Keys
16
Operation Keys
16
Tips and Tricks
17
Status Messages
17
Status Message Definitions
17
Service Functions
18
Filter Inputs and Outputs
18
Current Transformers
18
Filter CT Input
18
External CT Input
18
Control Wiring Input/Output
20
Serial Communication Wiring
20
Relay Options
21
Control Terminals
21
Control Terminal Functions
22
Grounding Shielded Control Cables
24
Internal Active Filter Operation
26
General
26
Control Card
26
Active Filter Card
27
Control to Power Interface
27
Filter Power Section
28
Additional Circuitry
28
AC Contactor
28
Soft Charge Circuit
28
Additional Thermal Protection
29
Current Transducers
29
Cooling Fans
29
Fan Speed Control
29
Low Harmonic Drive
30
Troubleshooting
32
Troubleshooting Tips
32
Fault Symptom Troubleshooting
32
Visual Inspection
33
Fault Symptoms
34
No Display
34
Intermittent Display
34
Warning/Alarm Messages
35
Warning/Alarm Code List
35
After Repair Tests
43
Active Filter and the Power Grid
44
Grid Variations
44
Grid Configurations
44
Grid Impedance
44
Voltage Pre-Distortions
44
Basic Troubleshooting Background
44
Line Phase Loss and Unbalanced Phase Trips
44
Voltage Dips and Flickers
44
Compatibility with Other Equipment on the same Line Power
45
Line Power Resonances
45
Control Logic Problems
45
Programming Problems
46
Internal Active Filter Problems
46
Overtemperature Faults
46
Current Feedback Problems
46
Noise on CT Input
47
Effect of EMI
47
Test Procedures
48
Introduction
48
Tools Required for Testing
49
Signal Test Board
49
Static Test Procedures
49
Inverter Section Tests
49
Inverter Test Part I
49
Inverter Test Part
49
Inverter Test Part
50
Gate Resistor Test
50
Intermediate Section Tests
50
Heatsink Temperature Sensor Test
51
Fan Continuity Tests
51
Fan Fuse Test
51
Ohm Test of Transformer
51
Ohm Test of Fans
51
AC Line Power Contactor and Soft Charge Contactor Tests
52
Dynamic Test Procedures
52
No Display Test
52
Input Voltage Test
52
Control Card Basic Voltage Test
53
Switch Mode Power Supply (SMPS) Test
53
Current Sensors Test CT1, CT2, CT3
54
Input Terminal Signal Tests
54
Line Power Resonance Test
55
Control Card Digital Inputs/Outputs Test
55
After Repair Tests
55
Frame Sizes Disassembly and Assembly Instructions
58
Electrostatic Discharge (ESD)
58
Passive Section (Top) Instructions
59
Control Card and Control Card Mounting Plate
60
MG90Z122 - VLT ® Is a Registered Danfoss Trademark
60
Control Assembly Support Bracket
60
Active Filter Card
60
Power Card
61
Power Card Mounting Plate
62
AC Capacitors
63
AC Capacitor Current Sensor (CT4, CT5, CT6)
64
AC Contactors
64
Movs
65
Discharge Card
65
Soft Charge Resistor
65
Active Side (Bottom) Instructions
66
Input Terminal Mounting Plate
66
Gate Drive Card
68
Contactor Transformer
68
Common Mode (CM) RFI Filter Card
68
Differential Mode (DM) RFI Filter Card
69
Capacitor Bank Assembly
69
IGBT Modules
70
IGBT Current Sensors CT1, CT2, and CT3
71
Damping Resistors
71
Fan Transformer
71
Fan
71
Frame Sizes Disassembly and Assembly Instructions
72
Electrostatic Discharge (ESD)
72
Passive Section (Top) Instructions
73
Control Card and Control Card Mounting Plate
74
Soft Charge Resistor
81
Active Section (Bottom) Instructions
81
Input Terminal Mounting Plate
81
Gate Drive Card Mounting Plate
83
Gate Drive Card
83
Upper Capacitor Bank Assembly
84
Lower Capacitor Bank Assembly
85
IGBT Modules
86
IGBT Current Sensors CT1, CT2, and CT3
88
Fan Transformer
89
Fan
89
Damping Resistors
89
Special Test Equipment
90
Test Equipment
90
Signal Test Board (P/N 176F8437)
90
Signal Test Board Pin Outs: Description and Voltage Levels
90
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Danfoss VLT AAF006 Specifications
General
Brand
Danfoss
Model
VLT AAF006
Category
Water Filtration Systems
Language
English
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