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Vacon NXA series User Manual
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Active Front End (AFE)
vacon • 23
Local contacts: http://drives.danfos
s.com/danfoss-drives/
local-contacts/
4
4.2
Active Front End Unit block diagram
Figure 7. NXA block diagram
B+
B-
U/T1
V/T2
W/T3
RS-232
11170.em
f
Power
Mod
ule
Contr
ol Module
Keyp
ad
Contr
ol
Driv
er
Measur
e-
ments
Power
supply
Fa
n
ASIC
IGBT
bridge
I/O
slot E
I/O
slot D
I/O
slot C
I/O
slot A
I/O
slot B
24
26
Table of Contents
Default Chapter
3
Table of Contents
3
Vacon
5
Vacon
6
1 Safety
7
Warnings
8
Cautions
8
Grounding and Earth Fault Protection
9
Electro-Magnetic Compatibility (EMC)
10
Using an RCD or an RCM Device
10
2 EU Directive
11
CE Marking
11
EMC Directive
11
Introduction
11
Technical Criteria
11
VACON Active Front End EMC Classification
11
Manufacturer's Declaration of Conformity
11
3 Receipt of Delivery
13
Type Designation Code for the AFE Unit
13
Type Designation Code for the LCL Filter
14
Type Designation Code for the Pre-Charging Components
15
Storage
16
Capacitor Reforming
16
Maintenance
17
Lifting the Modules
18
Lifting the LCL Filters
20
Disposal
22
4 Active Front End (AFE)
23
Introduction
23
Active Front End Unit Block Diagram
25
Active Front End Enclosure Sizes
26
Active Front End Unit Technical Data
28
LCL Filter Technical Data
31
Application
32
Diagrams
32
Connection between Control Unit and Power Unit
32
LCL Wiring Diagram
34
Active Front End Power Ratings
38
VACON® NXA; DC Voltage 380-500 V
38
VACON® NXA; DC Voltage 525-690 V
39
Active Front End Unit - Dimensions
40
LCL Filter - Dimensions
40
Active Front End Unit - Fuse Selection
41
Introduction
41
Fuses; Mains Voltage 380-500 V
41
Fuses; Mains Voltage 525-690 V
44
Active Front End Unit - Circuit Breaker Selection
46
Main Contactor
47
Pre-Charging Circuit
48
Paralleling
49
Common Pre-Charging Circuit
49
Each Active Front End Unit Has the Pre-Charging Circuit
51
Derating
52
Ambient Temperature
52
High Altitude Installation
53
5 Installation
54
Mounting
54
Active Front End Unit
54
LCL Filter
56
Control Box
58
Cooling
61
Active Front End Unit
61
LCL Filter
65
Arranging Ventilation of the Enclosure
68
Steering Air Flow
69
Power Connection
72
AC Connection
72
DC Connection
72
Cable Installation and the UL Standards
72
LCL Filter Fan Power Supply
72
Control Unit
77
Control Unit Components
77
Control Voltage (+24V/EXT +24V)
77
Control Unit Cabling
78
Galvanic Isolation Barriers
84
6 Control Keypad
85
Indicators on the Keypad Display
86
Drive Status Indications
86
Status Leds (Green - Green - Red)
86
Text Lines
87
Keypad Push-Buttons
87
Buttons Descriptions
88
Navigation on the Control Keypad
89
Monitoring Menu (M1)
90
Parameter Menu (M2)
91
Keypad Control Menu (M3)
93
Active Fault Menu (M4)
93
Fault Types
94
Fault Codes
95
Fault History Menu (M5)
97
System Menu (M6)
98
7 Appendices
108
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Vacon NXA series Specifications
General
Brand
Vacon
Model
NXA series
Category
Controller
Language
English
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