Operating Guide
VACON® 3000 Enclosed Drive
drives.danfoss.com
VACON® 3000 Enclosed Drive |
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Operating Guide |
Contents |
Contents
1 Introduction |
9 |
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1.1 |
Purpose of this Operating Guide |
9 |
1.2 |
Additional Resources |
9 |
1.3 |
Manual Version |
9 |
2 Safety |
10 |
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2.1 |
Safety Symbols |
10 |
2.2 |
Qualified Personnel |
10 |
2.3 |
Danger and Warnings |
10 |
2.4 |
Cautions and Notices |
12 |
2.5 |
Main Circuit Breaker |
14 |
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2.5.1 Safety and Protection Requirements |
14 |
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2.5.2 Minimum Requirements for MCB and MCB Control |
14 |
3 Product Overview |
16 |
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3.1 |
Intended Use |
16 |
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3.2 |
Product Description |
16 |
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3.2.1 |
AFE Drive |
16 |
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3.2.2 |
12-Pulse Drive |
17 |
3.3 |
Type Code Description |
17 |
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3.4 |
Available Options |
18 |
4 Receiving the Delivery |
21 |
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4.1 |
Checking the Delivery |
21 |
4.2 |
Storage |
21 |
4.3 |
Lifting and Moving the Enclosed Drive |
21 |
5 Mechanical Installation |
24 |
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5.1 |
Operating Environment |
24 |
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5.2 |
Cabinet Installation |
24 |
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5.3 |
Dimensions of the Enclosed Drive |
25 |
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5.4 |
Liquid Cooling Requirements |
26 |
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5.4.1 |
Safety in Liquid-cooling |
26 |
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5.4.2 General Information on Liquid Cooling |
26 |
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5.4.3 |
Cooling Liquid |
27 |
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5.4.3.1 Quality Requirements for the Purified Water |
27 |
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5.4.3.2 Purified Water as Coolant |
27 |
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5.4.3.3 Antifreeze Mix as Coolant |
27 |
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VACON® 3000 Enclosed Drive |
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Operating Guide |
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5.4.3.4 Temperature of the Cooling Liquid |
28 |
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5.4.3.5 |
Condensation |
28 |
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5.4.4 |
Cooling System |
30 |
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5.4.4.1 |
Materials |
30 |
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5.4.4.2 |
Cooling System Overview |
31 |
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5.4.4.3 Cooling Connections to the Enclosed Drive |
31 |
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5.5 |
Cooling and Free Space Around the Enclosed Drive |
32 |
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6 Electrical Installation |
34 |
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6.1 |
Galvanic Isolation Between the MV and LV Sections |
34 |
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6.2 |
Mains and Motor Cable Selection |
35 |
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6.3 |
Mains and Motor Cable Inlet and Termination |
35 |
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6.4 |
Grounding |
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38 |
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6.4.1 |
Standard Grounding Configurations |
38 |
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6.5 |
Additional Instructions for Cable Installation |
39 |
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6.6 |
Main Circuit Breaker Installation |
40 |
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6.7 |
Cabling of the Power Modules |
40 |
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6.7.1 Phase Module L20/L30 Terminals |
40 |
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6.7.2 DFE Power Module Terminals |
40 |
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6.7.2.1 |
DFE Control Terminals |
41 |
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6.7.3 |
Power Module Grounding |
42 |
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6.7.4 |
DC-Link Connections |
43 |
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6.7.5 |
Brake Chopper Installation |
45 |
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6.7.6 Terminal Screw Tightening Torque Specifications |
45 |
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6.7.7 LED Display on the Phase Module |
45 |
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6.7.8 LED Display on the DFE Power Module |
47 |
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6.8 |
Low-Voltage Power Supplies |
48 |
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6.8.1 Low-Voltage Power Supply Connections |
48 |
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6.8.2 Safety Notes for the Precharge Unit |
49 |
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6.8.3 Location of the Precharge Unit |
49 |
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6.9 |
Safety Functions |
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49 |
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6.9.1 Safe Torque Off (STO) |
50 |
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6.9.2 Safe Stop 1 (SS1) |
50 |
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6.9.3 |
Safety Considerations |
50 |
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6.9.3.1 |
Diagnostic Test |
50 |
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6.9.4 |
STO Operating Principle |
51 |
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6.9.5 |
SS1 Operating Principle |
51 |
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VACON® 3000 Enclosed Drive |
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Operating Guide |
Contents |
7 Control Connections |
52 |
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7.1 |
Control Interface |
52 |
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7.2 |
The Control Compartment of the Enclosed Drive |
52 |
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7.3 |
Control Unit Components |
53 |
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7.4 |
Control Unit Cabling |
54 |
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7.4.1 |
Selection of the Control Cables |
55 |
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7.4.2 |
Control Unit Terminals |
55 |
7.5 |
DIP Switches on the Control Unit |
56 |
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7.5.1 |
Selection of Terminal Functions with DIP Switches |
56 |
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7.5.2 |
Isolation of the Digital Inputs from Ground |
57 |
7.6 |
Fieldbus Connection |
58 |
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7.6.1 |
Fieldbus Terminals |
58 |
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7.6.2 |
Using Fieldbus through an Ethernet Cable |
59 |
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7.6.3 |
Using Fieldbus through an RS485 Cable |
60 |
7.7 |
Option Board Installation |
62 |
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7.8 |
Optical Fiber Connections |
63 |
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7.8.1 |
Selection of Optical Fiber Cables |
66 |
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7.8.2 |
Making Optical Fiber Cables |
67 |
7.9 |
Encoder Interface |
68 |
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7.9.1 |
Encoder Terminals and Signals |
69 |
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7.9.2 |
Encoder Jumper Configurations |
70 |
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7.9.3 |
Encoder Connection |
72 |
7.10 |
Battery for the Real-Time Clock (RTC) |
73 |
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7.11 |
Galvanic Isolation Barriers |
73 |
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7.12 |
System and Application Software |
73 |
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7.13 |
Technical Data on Control Connections |
73 |
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7.14 |
Auxiliary I/O Board |
75 |
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7.14.1 |
Connector Locations |
75 |
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7.14.2 |
Connector Specifications |
76 |
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7.14.3 |
LED Display on the Auxiliary I/O Board |
80 |
8 Commissioning |
82 |
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8.1 |
Safety Checks before Starting the Commissioning |
82 |
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8.2 |
Operating the Grounding Switch |
82 |
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8.3 |
Commissioning the Drive |
83 |
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8.3.1 |
Basic Job Information |
83 |
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8.3.2 |
Before Power-up Checklist |
84 |
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8.3.3 Control and Auxiliary Power Commissioning Checklist |
87 |
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Operating Guide |
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8.3.4 |
Medium-Voltage Power Commissioning Checklist |
88 |
8.4 |
Commissioning Procedures |
88 |
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8.4.1 |
Filling the Liquid Cooling System |
88 |
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8.4.2 |
Grid Voltage Feedback Configuration |
92 |
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8.4.3 |
Installing Software on the Control Unit |
94 |
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8.4.4 |
Verifying the Phase Module Connections |
97 |
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8.4.5 |
Commissioning Test |
98 |
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8.4.5.1 Commissioning Test with HMI Touch Screen |
99 |
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8.4.5.2 Commissioning Test with VACON® Live |
100 |
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8.4.6 |
AFE Synchronization Test |
101 |
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8.4.7 |
Encoder Setup |
105 |
8.5 |
Insulation Resistance Measurements |
106 |
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8.5.1 |
Measuring the Switchgear Insulation Resistance |
106 |
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8.5.2 |
Measuring the Cable and Motor Insulation |
107 |
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8.5.2.1 Insulation Checks of the Motor Cable |
107 |
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8.5.2.2 Insulation Checks of the Mains Cable |
107 |
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8.5.2.3 Insulation Checks of the Motor |
107 |
9 Maintenance |
108 |
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9.1 |
Preventive Maintenance Recommendations |
108 |
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9.2 |
Maintenance of the Heat Exchanger |
110 |
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10 Fault Tracing |
111 |
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10.1 |
Fault Types |
111 |
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10.2 |
Faults and Alarms |
111 |
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10.2.1 |
Fault Code 1 - Overcurrent |
111 |
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10.2.2 |
Fault Code 2 - Overvoltage |
112 |
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10.2.3 |
Fault Code 3 - Earth Fault |
113 |
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10.2.4 |
Fault Code 5 - Charging Switch |
114 |
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10.2.5 |
Fault Code 7 - Saturation |
114 |
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10.2.6 |
Fault Code 8 - System Fault |
114 |
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10.2.7 |
Fault Code 9 - Undervoltage |
122 |
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10.2.8 |
Fault Code 10 - Input Phase |
122 |
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10.2.9 |
Fault Code 11 - Output Phase Supervision |
124 |
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10.2.10 Fault Code 12 - Brake Chopper Supervision |
124 |
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10.2.11 Fault Code 13 - AC Drive Undertemperature |
125 |
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10.2.12 Fault Code 14 - AC Drive Overtemperature |
125 |
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10.2.13 Fault Code 15 - Motor Stall |
127 |
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10.2.14 Fault Code 16 - Motor Overtemperature |
127 |
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VACON® 3000 Enclosed Drive |
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Operating Guide |
Contents |
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10.2.15 Fault Code 17 - Motor Underload |
127 |
10.2.16 Fault Code 19 - Power Overload |
128 |
10.2.17 Fault Code 25 - Motor Control Fault |
128 |
10.2.18 Fault Code 26 - Start-up Prevented |
129 |
10.2.19 Fault Code 29 - ATEX Thermistor |
129 |
10.2.20 Fault Code 30 - Safety |
129 |
10.2.21 Fault Code 32 - Fan Cooling |
132 |
10.2.22 Fault Code 33 - Fire Mode Enabled |
132 |
10.2.23 Fault Code 37 - Device Changed (Same Type) |
132 |
10.2.24 Fault Code 38 - Device Added (Same Type) |
133 |
10.2.25 Fault Code 39 - Device Removed |
134 |
10.2.26 Fault Code 40 - Device Unknown |
134 |
10.2.27 Fault Code 41 - IGBT Temperature |
135 |
10.2.28 Fault Code 43 - Encoder Fault |
135 |
10.2.29 Fault Code 44 - Device Changed (Different Type) |
137 |
10.2.30 Fault Code 45 - Device Added (Different Type) |
138 |
10.2.31 Fault Code 46 - Real Time Clock |
138 |
10.2.32 Fault Code 47 - Software Update |
139 |
10.2.33 Fault Code 49 - Precharge |
139 |
10.2.34 Fault Code 50 - AI Low Fault |
143 |
10.2.35 Fault Code 51 - Device External Fault |
143 |
10.2.36 Fault Code 52 - Keypad Communication Fault |
144 |
10.2.37 Fault Code 53 - Fieldbus Communication Fault |
144 |
10.2.38 Fault Code 54 - Slot Fault |
144 |
10.2.39 Fault Code 57 - Identification |
145 |
10.2.40 Fault Code 58 - Mechanical Brake |
146 |
10.2.41 Fault Code 59 - Communication |
146 |
10.2.42 Fault Code 61 - Speed Error Fault |
146 |
10.2.43 Fault Code 63 - Quick Stop |
146 |
10.2.44 Fault Code 65 - PC Communication Fault |
147 |
10.2.45 Fault Code 66 - Thermistor Input Fault |
147 |
10.2.46 Fault Code 67 - Module Test Stand |
148 |
10.2.47 Fault Code 68 - Maintenance Counter |
148 |
10.2.48 Fault Code 69 - Fieldbus Mapping Error |
148 |
10.2.49 Fault Code 76 - Start Prevented |
149 |
10.2.50 Fault Code 77 - >5 Connections |
149 |
10.2.51 Fault Code 78 - Identification Ongoing |
149 |
10.2.52 Fault Code 80 - Fieldbus Watchdog Fault |
149 |
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Operating Guide |
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10.2.53 Fault Code 84 - Overspeed Error |
149 |
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10.2.54 Fault Code 111 - Temperature Input Fault 1 |
149 |
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10.2.55 Fault Code 112 - Temperature Input Fault 2 |
150 |
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10.2.56 Fault Code 114 - User Defined Fault 1 |
150 |
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10.2.57 Fault Code 115 - User Defined Fault 2 |
151 |
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10.2.58 Fault Code 200 - Precharge |
151 |
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10.2.59 Fault Code 201 - High Humidity/Temperature |
152 |
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10.2.60 Fault Code 202 - Encoder |
152 |
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10.2.61 Fault Code 203 - STO Fault |
153 |
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10.2.62 Fault Code 204 - Output Filter |
153 |
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10.2.63 Fault Code 205 - Coolant Temperature |
153 |
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10.2.64 Fault Code 300 - Unsupported |
153 |
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11 Specifications |
154 |
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11.1 |
Power Ratings |
154 |
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11.1.1 Power Ratings for Mains Voltage 3300 V |
154 |
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11.1.2 Power Ratings for Mains Voltage 4160 V |
154 |
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11.1.3 |
Overload Capability |
155 |
11.2 |
Technical Data |
155 |
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11.2.1 |
Mains Supply |
155 |
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11.2.2 |
Motor Output |
156 |
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11.2.3 |
Control Properties |
156 |
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11.2.4 |
Drive Properties |
157 |
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11.2.5 |
Ambient Conditions |
158 |
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11.2.6 |
Cooling |
159 |
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11.2.7 |
Source Impedance Specifications |
160 |
11.3 |
Main Circuit Diagrams |
164 |
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11.3.1 VACON® 3000 AFE Main Circuit Diagrams |
164 |
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11.3.2 VACON® 3000 12-Pulse Main Circuit Diagrams |
166 |
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11.4 |
Abbreviations |
167 |
8 | Danfoss A/S © 2021.09 |
AQ286660579921en-000101/DPD02033 |
VACON® 3000 Enclosed Drive
Operating Guide |
Introduction |
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This Operating Guide provides information for safe installation and commissioning of the AC drive. It is intended for use by qualified personnel.
Read and follow the instructions to use the drive safely and professionally.
Pay particular attention to the safety instructions and general warnings. Always keep this Operating Guide with the drive.
Other resources are available to understand advanced AC drive functions, programming, and options.
•The VACON® 3000 application guides provide greater detail on how to work with the applications and how to set the parameters of the AC drive.
•The operating and installation guides for VACON® options give detailed information about specific drive options.
Supplementary publications and manuals are available from Danfoss. See www.danfoss.com for listings.
This manual is regularly reviewed and updated. All suggestions for improvement are welcome. The original language of this manual is English.
Table 1: VACON® 3000 Enclosed Drive Operating Guide Version
Version |
Release date |
Remarks |
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A |
29.09.2021 |
First version |
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AQ286660579921en-000101 / DPD02033 | 9 |
VACON® 3000 Enclosed Drive
Operating Guide |
Safety |
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The following symbols are used in this manual:
D A N G E R
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
W A R N I N G
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
C A U T I O N
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
N O T I C E
Indicates information considered important, but not hazard-related (for example, messages relating to property damage).
To allow trouble-free and safe operation of the unit, only qualified personnel with proven skills are allowed to transport, store, assemble, install, program, commission, maintain, and decommission this equipment.
Persons with proven skills:
•Are qualified electrical engineers, or persons who have received training from qualified electrical engineers and are suitably experienced to operate devices, systems, plant, and machinery in accordance with pertinent laws and regulations.
•Are familiar with the basic regulations concerning health and safety/accident prevention.
•Have read and understood the safety guidelines given in all manuals, especially the instructions given in the operating guide of the unit.
•Have good knowledge of the generic and specialist standards applicable to the specific application.
•Are familiar with the structure and operation of medium-voltage drives and the related risks. Special training for medium-volt- age installations may be necessary.
D A N G E R
SHOCK HAZARD FROM POWER UNIT COMPONENTS
The power unit components are live when the drive is connected to mains. Contact with this voltage can result in death or serious injury.
-Do not touch the components of the power unit when the drive is connected to mains. Do not do any work on live equipment.
Before doing any work on internal drive components, follow proper lock out and tag out procedure.
Before connecting the drive to mains, make sure that all covers are installed on the drive and the enclosure doors are closed.
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AQ286660579921en-000101 / DPD02033 |
VACON® 3000 Enclosed Drive
Operating Guide |
Safety |
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D A N G E R
SHOCK HAZARD FROM TERMINALS
The motor terminals U, V, W, the brake resistor terminals, and the DC-link terminals must be treated as live when the drive is connected to mains. Contact with this voltage can lead to death or serious injury.
-Do not touch the motor terminals U, V, W, the brake resistor terminals, or the DC terminals when the drive is connected to mains.
Do not do any work on live equipment.
Before doing any work on the drive, follow proper lock out and tag out procedure.
Before connecting the drive to mains, make sure that all covers are installed on the drive and the enclosure doors are closed.
D A N G E R
SHOCK HAZARD FROM DC LINK OR EXTERNAL SOURCE
The terminal connections and the components of the drive can be live several minutes after the drive is disconnected from the mains and the motor has stopped. The load side of the drive can also generate voltage. A contact with this voltage can lead to death or serious injury.
-Disconnect the drive from the mains and make sure that the motor has stopped. Disconnect the motor.
Lock out and tag out the power source to the drive.
Make sure that no external source generates unintended voltage during work.
To ground the drive input and DC link, close the grounding switch. If there is no grounding switch, make sure that the drive input and DC link are grounded for work. Also ground the motor terminals for work.
Wait for the DC-link capacitors to discharge fully before opening the cabinet door or the cover of the AC drive. The discharge time is <7 minutes for AFE drives and <21 minutes for 12-pulse drives.
Use a measuring device to make sure that there is no voltage.
W A R N I N G
SHOCK HAZARD FROM CONTROL TERMINALS
The control terminals can have a dangerous voltage also when the drive is disconnected from mains. A contact with this voltage can lead to injury.
-Make sure that there is no voltage in the control terminals before touching the control terminals.
W A R N I N G
ACCIDENTAL MOTOR START
When there is a power-up, a power break, or a fault reset, the motor starts immediately if the start signal is active, unless the pulse control for Start/Stop logic is selected. If the parameters, the applications or the software change, the I/O functions (including the start inputs) can change. If you activate the auto reset function, the motor starts automatically after an automatic fault reset. See the Application Guide. Failure to ensure that the motor, system, and any attached equipment are ready for start can result in personal injury or equipment damage.
-Disconnect the motor from the drive if an accidental start can be dangerous. Make sure that the equipment is safe to operate under any condition.
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VACON® 3000 Enclosed Drive
Operating Guide |
Safety |
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W A R N I N G
ELECTRICAL SHOCK HAZARD - LEAKAGE CURRENT HAZARD >3.5 MA
Leakage currents exceed 3.5 mA. Failure to connect the drive properly to protective earth (PE) can result in death or serious injury.
-Ensure reinforced protective earthing conductor according to IEC 60364-5-54 cl. 543.7 or according to local safety regulations for high touch current equipment. The reinforced protective earthing of the drive can be done with:
-a PE conductor with a cross-section of at least 10 mm2 (8 AWG) Cu or 16 mm2 (6 AWG) Al.
-an extra PE conductor of the same cross-sectional area as the original PE conductor as specified by IEC 60364-5-54 with a minimum cross-sectional area of 2.5 mm2 (14 AWG) (mechanical protected) or 4 mm2 (12 AWG) (not mechanical protected).
-a PE conductor completely enclosed with an enclosure or otherwise protected throughout its length against mechanical damage.
-a PE conductor part of a multi-conductor power cable with a minimum PE conductor cross-section of 2.5 mm2 (14 AWG) (permanently connected or pluggable by an industrial connector. The multi-conductor power cable shall be installed with an appropriate strain relief).
-NOTE: In IEC/EN 60364-5-54 cl. 543.7 and some application standards (for example IEC/EN 60204-1), the limit for requiring reinforced protective earthing conductor is 10 mA leakage current.
C A U T I O N
DAMAGE TO THE AC DRIVE FROM INCORRECT SPARE PARTS
Using spare parts that are not from the manufacturer can damage the drive.
-Do not use spare parts that are not from the manufacturer.
C A U T I O N
DAMAGE TO THE AC DRIVE FROM CHANGES TO DRIVE COMPONENTS
Doing electrical or mechanical changes to the drive components can cause malfunctions and can damage the AC Drive.
-Do not make electrical or mechanical changes to the drive components.
C A U T I O N
DAMAGE TO THE AC DRIVE FROM INSUFFICIENT GROUNDING
Not using a grounding conductor can damage the drive.
-Always ground the AC drive with a grounding conductor that is connected to the grounding terminal that is identified with the PE symbol. If no dedicated transformer is installed, the AC drive is intended for high resistance grounding systems with a resistance grounded neutral point. For operation in an IT network without a dedicated transformer, consult Danfoss.
C A U T I O N
CUT HAZARD FROM SHARP EDGES
There can be sharp edges in the AC drive that can cause cuts.
-Wear protective gloves when mounting, cabling, or doing maintenance operations.
C A U T I O N
BURN HAZARD FROM HOT SURFACES
Touching surfaces, which are marked with the 'hot surface' sticker, can result in injury.
-Do not touch surfaces which are marked with the 'hot surface' sticker.
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AQ286660579921en-000101 / DPD02033 |
VACON® 3000 Enclosed Drive
Operating Guide |
Safety |
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N O T I C E
DAMAGE TO THE AC DRIVE FROM STATIC VOLTAGE
Some of the electronic components inside the AC drive are sensitive to ESD. Static voltage can damage the components.
-Use ESD protection when working with electronic components of the AC drive. Do not touch the components on the circuit boards without proper ESD protection.
N O T I C E
DAMAGE TO THE AC DRIVE FROM MOVEMENT
Movement after installation can damage the drive.
-Do not move the AC drive during operation. Use a fixed installation to prevent damage to the drive.
N O T I C E
DAMAGE TO THE AC DRIVE FROM INCORRECT EMC LEVEL
The EMC level requirements for the AC drive depend on the installation environment. An incorrect EMC level can damage the drive.
-Before connecting the AC drive to the mains, make sure that the EMC level of the AC drive is correct for the mains.
N O T I C E
RADIO INTERFERENCE
In a residential environment, this product can cause radio interference.
-Take supplementary mitigation measures.
N O T I C E
MAINS DISCONNECTION DEVICE
If the AC drive is used as a part of a machine, the machine manufacturer must supply a mains disconnection device (refer to EN 60204-1).
N O T I C E
MALFUNCTION OF FAULT CURRENT PROTECTIVE SWITCHES
Because there are high capacitive currents in the AC drive, it is possible that the fault current protective switches do not operate correctly.
N O T I C E
VOLTAGE WITHSTAND TESTS
If done improperly, doing voltage withstand tests can damage the drive.
-Megohmmeter testing is the only recommended test type for field installations. Only a qualified field service engineer is allowed to perform this test.
Refer to the proper high potential/megohmmeter testing instructions in the service guide.
N O T I C E
WARRANTY
If the power modules are opened, the warranty is not valid.
-Do not open the power modules.
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VACON® 3000 Enclosed Drive
Operating Guide |
Safety |
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N O T I C E
PERSONAL PROTECTIVE EQUIPMENT AND APPROVED TOOLS
When doing electrical work on the AC drive, always use personal protective equipment (PPE) and tools which are approved for work with medium-voltage devices.
The main circuit breaker (MCB) is an important protection device for the drive. If there is a serious fault in the drive, the MCB immediately disconnects the main supply to the drive. To protect personnel and to prevent further damage to the equipment, the main supply must be disconnected immediately with an open or trip command from the drive.
If the drive is supplied through a dedicated transformer, install the MCB on the primary side of the supply transformer (see Illustration 1).
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1 |
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CB1 |
2 |
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G |
CB2 |
MVD |
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~ |
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M |
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~ |
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<![endif]>e30bi562.10
Illustration 1: Overview of the Drive System
1 |
Trip coil: RO from VACON® 3000 (reaction time: |
CB1 |
Circuit breaker 1 |
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10 ms delay) |
CB2 |
Circuit breaker 2 |
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2 |
Undervoltage release (UVR): IGBT switch from arc |
G |
Grid or generator |
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flash relay (reaction time: 2 ms delay) |
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3 |
Breaker open: RO from the breaker |
M |
Motor |
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4 |
Breaker closed: RO from the breaker |
MVD |
VACON® 3000 medium-voltage drive |
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5 |
Breaker ready (optional): RO from the breaker |
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For safety and protection, the MCB must meet the minimum requirements of the specifications of Danfoss medium-voltage drives. The minimum requirements for the MCB are stated in this manual and in the respective MCB specifications, which are available for each medium-voltage drive from Danfoss. The system integrator must make sure that the minimum requirements are met.
The safety requirements for the drive are based on the following standards:
•EN ISO 13849-1: Safety of machinery, Safety-related parts of control systems, General principles for design, section 6.2.6 Category 3
•UL347A, Edition 1: Standard for Medium Voltage Power Conversion Equipment
Requirements
To meet the stipulated safety requirements, Danfoss requires the following:
•MCB is equipped with 2 independent opening coils.
•MCB is equipped with an opening coil and an undervoltage coil for monitoring of the control voltage.
•Route the MCB open and trip commands directly from the drive to the MCB.
-Do not route the trip command through any PLC or DCS (distributed control system) which is not certified to meet SIL 3- level requirements and to fulfill the given timing requirements.
-Opening of the MCB by the drive must be possible at any time. Do not interrupt the open and trip commands, for example, by a local-remote switch in the MCB.
14 | Danfoss A/S © 2021.09 |
AQ286660579921en-000101 / DPD02033 |
VACON® 3000 Enclosed Drive
Operating Guide |
Safety |
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•Closing the MCB locally is not permitted. When the MCB is in the service position, the drive must have exclusive control of closing the MCB.
•The maximum opening time of the MCB must never exceed the product or project specific maximum time defined in the MCB specifications.
•Typical maximum protection and safety trip time for the drive: 60 ms
Recommendations
To meet the stipulated safety requirements, Danfoss recommends the following:
•Provide an upstream protection coordination scheme which uses the "breaker failure" (ANSI 50BF) signal to trip the upstream breaker automatically, in case the MCB does not open.
•After a failure has occurred, the upstream breaker must open within the maximum protection and safety trip time.
Danfoss A/S © 2021.09 |
AQ286660579921en-000101 / DPD02033 | 15 |
VACON® 3000 Enclosed Drive
Operating Guide |
Product Overview |
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VACON® 3000 is a liquid-cooled AC drive for stepless speed or torque control of medium-voltage induction motors. VACON® 3000 Enclosed Drive is a complete medium-voltage drive installed in a cabinet.
VACON® 3000 Enclosed Drive is available for industrial applications with motor voltages of 3300 V and 4160 V, and in a power range starting from 2 MW. Basic configurations have a power of 2 MW or 3 MW. These configurations can be paralleled for systems of 4 MW and above.
Two different drive configurations are available:
•Regenerative, with an active front-end (AFE)
•Non-regenerative, with a 12-pulse diode front-end (DFE)
<![if ! IE]><![endif]>e30bg963.10
Illustration 2: Example of the VACON® 3000 Enclosed Drive
An example diagram of the regenerative VACON® 3000 Enclosed Drive is shown in Illustration 3. The main components of the drive are:
•The active front-end (AFE) unit includes 3 or 6 liquid-cooled 1-phase power conversion units (PCU). 3 of the phase modules are installed in parallel to make a 3-phase converter. The AFE converts the supplied AC voltage to DC voltage. It also enables the supply of power to the supply network when the motor is braking.
•The inverter unit (INU) includes 3 or 6 of the same liquid-cooled 1-phase modules, which are used in the AFE. The INU converts the DC voltage to the AC voltage and frequency supplied to the motor.
•The LC filter (FLC) limits harmonic current on the supply network.
•The pre-charge unit (PRC) charges the DC-link capacitors.
•The AFE and INU control units (CNU-AFE/CNU-INU) are connected to the power conversion units with optical fibers.
•The auxiliary I/O board (AXU-IOB) provides galvanic separation between I/Os in the MV section and the control unit in the LV section of the cabinet.
The basic VACON® 3000 AFE drive is intended for installations, where the system is supplied by a dedicated transformer and the source impedance is small. These installations are usually on land. The drive includes an LC filter instead of an LCL filter, because the supply side inductance is included in the dedicated transformer.
It is recommended to install a dedicated transformer for the drive. If the drive is not supplied by a dedicated transformer (that is, there are other loads than the drive on the same supply):
16 | Danfoss A/S © 2021.09 |
AQ286660579921en-000101 / DPD02033 |
VACON® 3000 Enclosed Drive
Operating Guide |
Product Overview |
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•Install the drive in a high resistance grounding system with a resistance grounded neutral point.
•Install an input common-mode filter (option +PICM).
If the source impedance is high, select the +PHSI option. See 11.2.7 Source Impedance Specifications. For operation in an IT network without a dedicated transformer, contact Danfoss.
For the full main circuit diagrams, see 11.3.1 VACON® 3000 AFE Main Circuit Diagrams.
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CNU-AFE |
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CNU-INU |
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AXU-IOB |
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CCM |
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CCM |
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LV~ |
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CSH |
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PRC |
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+ |
+ |
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MV~ |
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o |
o |
Motor |
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- |
- |
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LGI |
LCM |
LCV |
3 x PCU |
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3 x PCU |
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+PODU |
+PICM |
FLC |
AFE |
INU |
+POSI |
Illustration 3: Example Main Circuit Diagram of a VACON® 3000 AFE Drive
<![endif]>e30bg606.10
An example diagram of the 12-pulse non-regenerative VACON® 3000 Enclosed Drive is shown in Illustration 4. The main components of the drive are:
•The diode front-end unit (DFE) is a liquid-cooled 12-pulse power conversion unit (PCU), which changes the supplied AC voltage to DC voltage. The 12-pulse configuration is used to limit harmonics on the supply network.
•The inverter unit (INU) includes 3 or 6 liquid-cooled 1-phase power conversion units (PCU). 3 of the phase modules are installed in parallel to make a 3-phase converter. The INU converts the DC voltage to the AC voltage and frequency supplied to the motor.
•The pre-charge unit (PRC) charges the DC-link capacitors.
•The INU control unit (CNU-INU) is connected to the inverter units with optical fibers.
•The auxiliary I/O board (AXU-IOB) provides galvanic separation between I/Os in the MV section and the control unit in the LV section of the cabinet.
The 12-pulse DFE must be supplied by a dedicated transformer with two secondary windings.
For the full main circuit diagrams, see 11.3.2 VACON® 3000 12-Pulse Main Circuit Diagrams.
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AXU-IOB |
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CNU-INU |
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PRC |
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MV~ |
+ |
+ |
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+ |
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Y |
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0 |
0 |
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0 |
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- |
- |
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MV~ |
CDC |
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3 x PCU |
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CCM |
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PCU |
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+PODU |
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12P-DFE |
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INU |
+POSI |
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Illustration 4: Example Main Circuit Diagram of a VACON® 3000 12-Pulse Drive
<![endif]>e30bg607.10
LV~
Motor
The type code for VACON® 3000 has five basic parts (1–5) and option codes (6).
Danfoss A/S © 2021.09 |
AQ286660579921en-000101 / DPD02033 | 17 |
VACON® 3000 Enclosed Drive
Operating Guide |
Product Overview |
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VACON3000 - ED - 4Q - 0425 - 03 +XXXX +YYYY +ZZZZ
1 |
2 |
3 |
4 |
5 |
6 |
Illustration 5: VACON® 3000 Type Code Structure
<![endif]>e30bg964.10
1. Product series
VACON® 3000. This part of the code is always the same.
2. Product class
The VACON® 3000 product.
•ED: Enclosed Drive
3. Drive type
There are two different drive types available. All kits include an inverter unit (INU) as default. The front-end type is specified in the type code.
•4Q: A regenerative drive with an active front end (AFE) and an LC input filter, supplied through a dedicated transformer. If the drive is not supplied by a dedicated transformer, install a common-mode filter (available with option code +PICM).
•12: A non-regenerative drive with a 12-pulse diode front end (DFE) rectifier and external DC capacitors. A dedicated transformer with 2 secondary windings is necessary.
4. Nominal output current
See the available output currents in Table 2.
Table 2: Available Output Current Ratings
Input voltage [V] |
3300 |
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4160 |
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Output current [A] |
0425 |
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0340 |
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0640 |
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0510 |
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0820 |
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0650 |
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1230 |
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0980 |
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5. Nominal input voltage |
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Nominal supply voltage: 03 = 3300 V or 04 = 4160 V. |
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6. Option codes |
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Optional components. |
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See the available codes in 3.4 Available Options. |
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3.4 Available Options |
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Table 3: Available Options for VACON® 3000 Enclosed Drive |
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Option Code |
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Option Description |
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+PICM |
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Input common-mode filter |
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(1) |
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The option is only available for AFE drives. |
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Always include the input common-mode filter in VACON® 3000 AFE installations, which are not supplied by a |
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dedicated transformer. |
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+PODU |
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dU/dt output filter |
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(1) |
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+POSI |
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Sine-wave output filter |
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(1) |
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+POCM |
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Output common-mode filter |
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(1) |
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Contact Danfoss to check the common-mode capacitor option selection. |
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18 | Danfoss A/S © 2021.09 |
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AQ286660579921en-000101 / DPD02033 |
VACON® 3000 Enclosed Drive |
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Operating Guide |
Product Overview |
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Option Code |
Option Description |
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+DBCU |
Brake chopper unit for dynamic braking |
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(1) |
The option does not include a brake resistor. |
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The option is for 12-pulse drives. If a brake chopper is required for an AFE drive, contact Danfoss. |
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+PHSI |
High source impedance |
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Option for installation locations with high source impedances (~10–15% SI). For example, marine applications |
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usually have a high source impedance. The option affects the size of the input filters. The default installation lo- |
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cation has small source impedance (SSI). |
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This option is only available for AFE drives. |
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Examine each application one by one. To see if this option is necessary, find out the source impedance and see |
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11.2.7 Source Impedance Specifications. If necessary, consult Danfoss. |
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+SC__ |
C, D, and E slot option boards |
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+SD__ |
Default: No option boards in slots C, D, and E. |
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+SE__ |
See the available option boards in Table 4. |
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+QSTO |
Safe torque off functionality. |
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Only available for AFE drives. |
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Control and fan supply voltage |
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+QFV1 |
115 V (default for 4160 V) |
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+QFV2 |
230 V (default for 3300 V) |
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Grounding of the heat sink and connection of the grounding resistor in power modules |
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+PGDR |
R: DC neutral-to-ground resistor connected (default) |
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+PGDN |
N: DC neutral-to-ground resistor not connected |
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Liquid cooling options |
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+PLIN |
IN: Industrial water and grounded heat sink |
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+PLDI |
DI: Deionized water and floating heat sink |
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+PUFE |
Short-circuit current rating: 40 kA, for 100 ms. |
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Available only for AFE drives. |
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+PGC0 |
Common-mode capacitor to ground removed |
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+PLCT |
Coolant input from the top |
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Heat exchanger option |
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+PHET |
ET: Titanium liquid-to-liquid heat exchanger included |
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+PH00 |
00: Liquid-to-liquid heat exchanger not included |
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Precharge input voltage |
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+QP24 |
240 V |
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+QP40 |
400 V (default for 3300 V) |
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+QP48 |
480 V (default for 4160 V) |
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+GAUL |
cUL certificate |
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+GACE |
EU declaration, CE approval |
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Marine approval |
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+GADN |
DN: Det Norske Veritas |
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Danfoss A/S © 2021.09 |
AQ286660579921en-000101 / DPD02033 | 19 |
VACON® 3000 Enclosed Drive |
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Operating Guide |
Product Overview |
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Option Code |
Option Description |
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+GALR |
LR: Lloyd's Register |
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1 The nominal current and voltage selected in the type code of the VACON® 3000 affect this option. The correct size and number of parts is supplied automatically. If a different size or number of parts is needed, an order for separate parts is possible.
Table 4: Available Option Boards for Slots C, D, and E
Slot C |
Slot D |
Slot E |
Option Board(1) |
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+SCB1 |
+SDB1 |
+SEB1 |
I/O board OPTB1: 6 x Digital input/digital output, programmable |
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+SCB2 |
+SDB2 |
+SEB2 |
I/O board OPTB2: 1 x relay output (NO/NC), 1 x relay output (NO), Thermistor |
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+SCB4 |
+SDB4 |
+SEB4 |
I/O board OPTB4: 1 x analog input, 2 x analog output (isolated) |
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+SCB5 |
+SDB5 |
+SEB5 |
I/O board OPTB5: 3 x relay output |
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+SCB9 |
+SDB9 |
+SEB9 |
I/O board OPTB9: 1 x relay output, 5 x digital input (42–240 V AC) |
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+SCBF |
+SDBF |
+SEBF |
I/O board OPTBF: 1 x analog output, 1 x digital output, 1 x relay output |
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+SCBH |
+SDBH |
+SEBH |
I/O board OPTBH: 3 x Temperature measurement (support for PT100, PT1000, NI1000, KTY84-130, |
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KTY84-150, KTY84-131 sensors) |
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+SDD3 |
+SED3 |
Adapter board OPTD3: RS232 adapter |
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+SDE3 |
+SEE3 |
Fieldbus board OPTE3: PROFIBUS DP-V1 (Screw connector) |
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+SDE5 |
+SEE5 |
Fieldbus board OPTE5: PROFIBUS DP-V1 (D9 connector) |
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+SDE6 |
+SEE6 |
Fieldbus board OPTE6: CANopen |
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+SDE7 |
+SEE7 |
Fieldbus board OPTE7: DeviceNet |
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+SDE9 |
+SEE9 |
Fieldbus board OPTE9: 2-port Ethernet |
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+SDEA |
+SEEA |
Fieldbus board OPTEA: Advanced 2-port Ethernet |
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+SDEC |
+SEEC |
Fieldbus board OPTEC: EtherCAT |
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1 For a 12-pulse drive, the option includes one board. For an AFE drive, the option includes two boards, one for the AFE control unit and one for the INU control unit. If the drive also has the brake chopper option (+DBCU), the option includes one more board for the brake chopper control unit.
20 | Danfoss A/S © 2021.09 |
AQ286660579921en-000101 / DPD02033 |
VACON® 3000 Enclosed Drive
Operating Guide |
Receiving the Delivery |
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1.After removing the packaging, examine the drive for transport damages.
-If the drive was damaged during the shipping, speak to the cargo insurance company or the carrier.
2.To make sure that the delivery is correct, compare the type code for the order to the type code on the package label. The type code specifies the drive type, nominal output current, nominal input voltage, and option codes. See 3.3 Type Code Description.
-If the delivery does not agree with the order, speak to the vendor immediately.
N O T I C E
LIQUID IN THE HEAT SINK
If the cooling liquid is not removed from the heat sink before storage or shipping, the liquid can freeze and damage the drive. - Always remove the cooling liquid from the heat sink before storage or shipping.
If the AC drive is kept in storage, keep it in controlled conditions.
•Storage temperature: -40…+70°C (-40... +158°F). If the storage temperature is below 0°C (+32°F), make sure that there is no cooling liquid in the heat sink.
•Relative humidity: < 96%, no condensation
Keep the equipment sealed in its packaging until installation.
W A R N I N G
LIFTING HEAVY EQUIPMENT
Follow local safety regulations for lifting heavy weights. Failure to follow recommendations and local safety regulations can result in death or serious injury.
-Ensure that the lifting equipment is in proper working condition.
The cabinets must be moved vertically. Always refer to the shipping marks on the package for more information. Do not remove the package material before installing the AC drive.
To lift the cabinets, use a lifting device that can lift the weight of the cabinets. There are lifting holes on the top of the cabinets. Use these holes to lift the cabinets and to move them to the installation location. The minimum angle between the cabinets and the chain is 60°.
To divide the weight of the cabinets equally, and to prevent damage to the equipment, always use 4 lifting holes. Align the lifting locations with the horizontal center of gravity.
Danfoss A/S © 2021.09 |
AQ286660579921en-000101 / DPD02033 | 21 |
VACON® 3000 Enclosed Drive |
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Operating Guide |
Receiving the Delivery |
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<![if ! IE]> <![endif]>e30bg965.10 |
>60°
>60°
Illustration 6: Lifting the Cabinets
You can use rollers, for example, to move the cabinets.
Move the cabinets carefully. Switchgear parts can easily fall because their center of gravity is high up at the back of the cabinets.
<![if ! IE]><![endif]>e30bg966.10
Illustration 7: Moving the Cabinets
When the cabinet is in the installation location, it can be necessary to make small adjustments to the position of the cabinet. Use a crowbar to move the cabinet from the special hooks on the cabinet base.
Remove the moving hooks from the base of the cabinet before installation.
22 | Danfoss A/S © 2021.09 |
AQ286660579921en-000101 / DPD02033 |
VACON® 3000 Enclosed Drive |
|
Operating Guide |
Receiving the Delivery |
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<![if ! IE]> <![endif]>e30bg967.10 |
Illustration 8: Hooks on the Cabinet Base for Adjusting the Position of the Cabinet
Danfoss A/S © 2021.09 |
AQ286660579921en-000101 / DPD02033 | 23 |
VACON® 3000 Enclosed Drive
Operating Guide |
Mechanical Installation |
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N O T I C E
CONDENSATION
Moisture can condense on the electronic components and cause short circuits.
-Avoid installation in areas subject to frost.
Install space heaters to warm the air inside the cabinets.
Before powering the drive, run the cooling pumps to warm up the components, until the drive is warmer than the ambient air.
N O T I C E
EXTREME AMBIENT CONDITIONS
Hot or cold temperatures compromise unit performance and longevity.
In environments with airborne liquids, particles, or corrosive gases, ensure that the IP/Type rating of the equipment matches the installation environment. For specifications regarding ambient conditions, see 11.2.5 Ambient Conditions.
Installation guidelines:
•Locate the drive as near to the motor as possible.
•Ensure unit stability by mounting the enclosure on a solid surface.
•Make sure that the level of the floor is in permitted limits. The maximum deviation from the basic level can be no more than 5 mm (0.197 in) along a 3 m (9.84 ft) distance. The maximum permitted height difference between the cabinet front and rear edges is 2 mm (0.079 in).
•Ensure that the strength of the mounting location supports the unit weight.
•It is not recommended to install the cabinet directly against a wall.
•Attach the cabinet to the floor. There are holes in the base of the cabinet which can be used for the installation.
•Ensure that there is enough space around the unit for proper cooling.
•Ensure that there is enough room to open the cabinet doors and for working on the equipment.
•Remove the moving hooks from the base of the cabinet before installation.
24 | Danfoss A/S © 2021.09 |
AQ286660579921en-000101 / DPD02033 |
VACON® 3000 Enclosed Drive
Operating Guide |
Mechanical Installation |
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Illustration 9 and Table 5 show the dimensions of the basic VACON® 3000 Enclosed Drive. Some options can affect the total width or height of the cabinet. Always refer to the delivery-specific information for the accurate dimensions.
<![if ! IE]><![endif]>e30bg968.10
B
A C
Illustration 9: Dimensions of the VACON® 3000 Enclosed Drive
A–C |
See the dimensions in Table 5. |
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Table 5: Dimensions of the VACON® 3000 Enclosed Drive |
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Type code |
Dimension A |
Dimension B |
Dimension C |
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VACON3000ED-4Q-0425-03 |
2400 mm (7 ft 10.5 in) |
2130 mm (6 ft 11.9 in) |
1000 mm (3 ft 3.4 in) |
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VACON3000ED-4Q-0640-03 |
2600 mm (8 ft 6.4 in) |
2130 mm (6 ft 11.9 in) |
1000 mm (3 ft 3.4 in) |
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VACON3000ED-4Q-0820-03 |
3800 mm (12 ft 5.6 in) |
2130 mm (6 ft 11.9 in) |
1000 mm (3 ft 3.4 in) |
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VACON3000ED-4Q-1230-03 |
4400 mm (14 ft 5.2 in) |
2130 mm (6 ft 11.9 in) |
1000 mm (3 ft 3.4 in) |
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VACON3000ED-4Q-0340-04 |
2400 mm (7 ft 10.5 in) |
2130 mm (6 ft 11.9 in) |
1000 mm (3 ft 3.4 in) |
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VACON3000ED-4Q-0510-04 |
2600 mm (8 ft 6.4 in) |
2130 mm (6 ft 11.9 in) |
1000 mm (3 ft 3.4 in) |
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VACON3000ED-4Q-0650-04 |
3800 mm (12 ft 5.6 in) |
2130 mm (6 ft 11.9 in) |
1000 mm (3 ft 3.4 in) |
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VACON3000ED-4Q-0980-04 |
4400 mm (14 ft 5.2 in) |
2130 mm (6 ft 11.9 in) |
1000 mm (3 ft 3.4 in) |
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VACON3000ED-12-0425-03 |
2400 mm (7 ft 10.5 in) |
2130 mm (6 ft 11.9 in) |
1000 mm (3 ft 3.4 in) |
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VACON3000ED-12-0640-03 |
2600 mm (8 ft 6.4 in) |
2130 mm (6 ft 11.9 in) |
1000 mm (3 ft 3.4 in) |
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VACON3000ED-12-0820-03 |
3400 mm (11 ft 1.9 in) |
2130 mm (6 ft 11.9 in) |
1000 mm (3 ft 3.4 in) |
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VACON3000ED-12-1230-03 |
3800 mm (12 ft 5.6 in) |
2130 mm (6 ft 11.9 in) |
1000 mm (3 ft 3.4 in) |
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Danfoss A/S © 2021.09 |
|
AQ286660579921en-000101 / DPD02033 | 25 |
VACON® 3000 Enclosed Drive |
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Operating Guide |
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Mechanical Installation |
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Type code |
Dimension A |
Dimension B |
Dimension C |
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VACON3000ED-12-0340-04 |
2400 mm (7 ft 10.5 in) |
2130 mm (6 ft 11.9 in) |
1000 mm (3 ft 3.4 in) |
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VACON3000ED-12-0510-04 |
2600 mm (8 ft 6.4 in) |
2130 mm (6 ft 11.9 in) |
1000 mm (3 ft 3.4 in) |
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VACON3000ED-12-0650-04 |
3400 mm (11 ft 1.9 in) |
2130 mm (6 ft 11.9 in) |
1000 mm (3 ft 3.4 in) |
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VACON3000ED-12-0980-04 |
3800 mm (12 ft 5.6 in) |
2130 mm (6 ft 11.9 in) |
1000 mm (3 ft 3.4 in) |
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W A R N I N G
POISONOUS COOLANTS
Glycols and inhibitors are poisonous. If touched or consumed, they can cause injury.
-Prevent the coolant from getting into the eyes. Do not drink the coolant.
C A U T I O N
HOT COOLANT
Hot coolant can cause burns.
-Avoid contact with the hot coolant.
C A U T I O N
PRESSURIZED COOLING SYSTEM
Sudden release of pressure from the cooling system can cause injury.
-Be careful when operating the cooling system.
N O T I C E
INSUFFICIENT COOLING CAPACITY
Insufficient cooling can cause the product to become too hot and thus become damaged.
-To make sure that the cooling capacity of the cooling system stays sufficient, make sure that the cooling system is vented and that the coolant circulates properly.
VACON® 3000 drives are liquid-cooled. The liquid circulation of the drive is connected to a heat-exchanger that cools down the liquid circulating in the cooling elements of the drive. The power modules have aluminum heat sinks, which give good and safe temperature control. Because the cooling elements are made of aluminum, the cooling liquids allowed to be used are inhibited pure water, inhibited demineralized water, or an inhibited mixture of water and glycol.
The inductors of the input and output filters use air-to-liquid heat exchanger units for forced air cooling. The heat exchangers decrease the heat losses to the air and thus decreases the number of fans necessary for cooling the cabinet.
There are two types of cooling systems: open systems and closed systems.
An open system has no pressure but the hydrostatic and pumping pressure. It allows free contact between the cooling liquid and air. Air is continuously dissolved into the cooling liquid.
In a closed system, the piping is air-tight and there is a preset pressure inside the pipes. The pipes must be made of metal, or a specific plastic or rubber that includes an oxygen barrier that limits the diffusion of oxygen. Minimizing of oxygen content in the cooling liquid decreases the risk of corrosion of the metal parts. Closed systems usually have an expansion vessel that allows for a safe change of volume of the cooling liquid due to temperature changes.
Always use a closed system with Danfoss liquid-cooled drives.
26 | Danfoss A/S © 2021.09 |
AQ286660579921en-000101 / DPD02033 |
VACON® 3000 Enclosed Drive |
|
Operating Guide |
Mechanical Installation |
N O T I C E |
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DAMAGE TO SYSTEM FROM THE USE OF HYDROCARBONS |
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Hydrocarbons damage the rubber seals of the cooling system. |
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- Do not use hydrocarbons (for example mineral oil) as coolant. Do not mix hydrocarbons to coolant. |
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Table 6: Requirements for the Purified Water |
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Property |
Required value |
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pH |
6...8 |
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Chlorides |
≤ 25 ppm |
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Sulphate ions |
≤ 25 ppm |
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Maximum particle size |
≤ 50 µm |
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Total dissolved solids |
≤ 200 ppm |
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Total hardness (CaCO3) |
3…4.6 dH° (53…80 ppm) |
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Hydrogen carbonate |
≤ 50 ppm |
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Electrical conductivity |
≤ 500 µS/cm |
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Purified water can be used as coolant if there is no risk of freezing. Freezing water permanently damages the cooling system. Purified water is demineralized, deionized, or distilled water.
Always use an inhibitor Cortec VpCI-649 with 1.0% of volume with purified water.
C A U T I O N
CORROSION HAZARD WITH DRINKING WATER
Some components are made of aluminum, which has limited corrosion resistance against high chloride concentrations. Drinking water can have a chloride concentration of 250 ppm, which increases the aluminum corrosion rate. High chloride concentration exposes aluminum especially to pitting corrosion which can damage the system relatively quickly.
-Use purified (demineralized, deionized, or distilled) water with corrosion inhibitors.
The following antifreeze products are a good general solution for liquid cooling since they provide freeze protection and corrosion protection.
The allowed antifreeze coolants are the following ethylene glycols and propylene glycols.
Ethylene glycols
•DOWCAL 100
•Clariant Antifrogen N
Propylene glycols
•DOWCAL 200
•Clariant Antifrogen L
These glycols already include corrosion inhibitors. Do not add any other inhibitor. Do not mix different glycol qualities because there can be harmful chemical interactions.
Danfoss A/S © 2021.09 |
AQ286660579921en-000101 / DPD02033 | 27 |
VACON® 3000 Enclosed Drive
Operating Guide |
Mechanical Installation |
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The glycol concentration of the coolant must be 25–55% by volume, according to the specified ambient temperature. Higher concentration reduces cooling capacity. Lower concentration results in biological growth and inadequate amount of corrosion inhibitors. Antifreeze must be mixed with purified water according to 5.4.3.1 Quality Requirements for the Purified Water.
To gain full performance of the product, the temperature of the cooling liquid entering the drive components must be a maximum of 43°C (109°F) and above the dew point. While circulating inside the cooling element, the liquid transfers the heat produced by the power semiconductors and other components. The temperature rise of the cooling liquid during the circulation is typically less than 4°C (7.2°F). Typically, more than 95% of the power losses are dissipated in the cooling liquid. It is recommended to equip the cooling circulation with temperature supervision.
The secondary circuit maximum temperature must always be lower than the primary circuit temperature. The temperature difference must be at least 5°C (9°F) with equal flow. The temperature difference is necessary for the correct operation of the heat exchanger.
There are 3 external causes that affect the nominal temperature of the primary circuit:
•The maximum ambient temperature at the drive installation location.
•The maximum relative humidity at the drive installation location.
•The maximum secondary circuit liquid temperature.
All these causes must be examined when calculating the primary circuit temperature. The primary circuit temperature can be different for each installation.
Condensation must be avoided. Always keep the temperature of the cooling liquid a minimum 2°C (3.6°F) above the dew point. Use the graph in Illustration 10 to see if the conditions (combination of room temperature, humidity, and cooling liquid temperature) are safe for the drive to operate.
The conditions are safe when the point is below the related (cooling liquid temperature) curve. If they are not, decrease the ambient temperature or the relative humidity. Also the cooling liquid temperature can be increased. Note, that if the cooling liquid temperature is increased above the figures in loadability charts, it decreases the nominal output current of the drive. The curves in Illustration 10 are valid at sea level altitude (1013 mbar/14.69 psi).
If the temperature of the liquid in the secondary circuit is lower than the ambient temperature and the relative humidity is high, condensation can occur on the secondary circuit pipes and the plate heat exchanger in the HX unit. The condensation is not dangerous, but it is not recommended. If there is condensation in the HX unit, it can cause the leak sensor in the cabinet to give a leak alarm. If a leak alarm occurs again and again, install insulation in the secondary circuit pipes and the plate heat exchanger. The insulation stops the condensation and thus prevents the incorrect leak alarms.
28 | Danfoss A/S © 2021.09 |
AQ286660579921en-000101 / DPD02033 |
VACON® 3000 Enclosed Drive
Operating Guide |
Mechanical Installation |
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Tamb , °C (°F) |
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<![if ! IE]> <![endif]>e30bg701.10 |
60 (140) |
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50 (122) |
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40 (104) |
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Tc , °C (°F) |
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45 |
(113) |
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40 |
(104) |
30 (86) |
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38 |
(100) |
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35 |
(95) |
20 (68) |
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30 |
(86) |
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25 |
(77) |
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20 |
(68) |
10 (50) |
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0 (32) |
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100 |
90 |
80 |
70 |
60 |
50 |
40 |
30 |
20 |
10 |
0 |
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RH (%)
Illustration 10: Safe Operating Conditions in Relation to Condensation
RH |
Relative humidity |
T c |
Cooling liquid temperature |
T amb |
Ambient temperature |
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Example
Safe Operating Conditions
If the ambient temperature is +30°C (+86°F), the relative humidity is 40% and the cooling liquid temperature is +20°C (+68°F, the lowest curve in Illustration 10), then the drive operation conditions are safe.
If the ambient temperature increases to +35°C (+95°F) and the relative humidity to 60%, then the operation conditions of the drive are not safe. To get safe operation conditions, the ambient temperature must be decreased to +28°C (+82°F) or below. If it is not possible to lower the ambient temperature, then the cooling liquid temperature can be increased to +25°C (+77°F) or above.
Example
Dew Point and Primary Circuit Temperature
If the ambient temperature and the maximum relative humidity at the drive installation location is known, the dew point chart (see Illustration 11) can be used to find the correct temperature for the primary circuit.
•Ambient temperature = 35°C (95°F)
•Maximum relative humidity = 60%
According to the diagram in Illustration 11, the dew point for the given values is 26°C (78.8°F). Always keep the temperature of the cooling liquid a minimum 2°C (3.6°F) above the dew point. Thus the primary circuit minimum temperature is set to 28°C (82.4°F).
The secondary circuit maximum temperature must always be 5°C (9°F) lower than the primary circuit temperature. Thus, in this example, the secondary circuit temperature must be below 23°C (73.4°F) during operation.
Notice, that these conditions are valid for the starting of the drive. After the start, the temperature inside the cabinet starts to increase and the humidity decreases.
Danfoss A/S © 2021.09 |
AQ286660579921en-000101 / DPD02033 | 29 |
VACON® 3000 Enclosed Drive
Operating Guide |
Mechanical Installation |
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Tamb (°C/°F) |
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<![if ! IE]> <![endif]>e30bg702.10 |
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10 |
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15 |
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25 |
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35 |
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40 |
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45 |
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°C |
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100 |
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50 |
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59 |
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68 |
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77 |
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86 |
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95 |
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104 |
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113 |
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122 |
°F |
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95 |
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90 |
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85 |
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80 |
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75 |
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70 |
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<![if ! IE]> <![endif]>(%) |
65 |
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60 |
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<![if ! IE]> <![endif]>RH |
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55 |
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50 |
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45 |
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40 |
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35 |
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30 |
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20 |
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2 |
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
22 |
24 |
26 |
28 |
30 |
32 |
34 |
36 |
38 |
40 |
42 |
44 |
46 |
48 |
50 |
°C |
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36 |
39 |
43 |
46 |
50 |
54 |
57 |
61 |
64 |
68 |
72 |
75 |
79 |
82 |
86 |
90 |
93 |
97 |
100 |
104 |
108 |
111 |
115 |
118 |
122 |
°F |
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Tc (°C/°F) |
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Illustration 11: Dew Point Diagram for Ambient Temperatures between +10°C...+50°C (+50°F...+122°F) at 1013 mbar (14.69 psi)
RH |
Relative humidity |
T c |
Primary circuit temperature |
T amb |
Ambient temperature |
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C A U T I O N
COPPER OR COPPER ALLOY PARTS DAMAGE THE SYSTEM
Using copper or copper alloy pipes or parts in contact with the cooling liquid damages the system.
-Do not use pipes made of copper or alloys that include copper. If metallic pipes are used in the cooling system, use aluminum or stainless steel pipes.
Allowed materials in the cooling system
These materials are allowed in the cooling system if they are compatible with the cooling liquid:
•Aluminum (EN-AW6060, EN-AW6063, or EN-AW6082)
•Stainless steel (AISI 304/316)
•Plastic*
•Elastomers (EPDM, NBR, FDM)*
* If plastic or elastomers are used, check material compatibility within the temperature range of the cooling liquid. See the specifications in 11.2.6 Cooling.
Do not use PVC, copper, brass, or other materials not compatible with the heat sink material or cooling liquid.
Recommended material for pipes
30 | Danfoss A/S © 2021.09 |
AQ286660579921en-000101 / DPD02033 |