Danfoss DLX 4.6 Uživatelská příručka stáhnout pdf (Strana 81)

User Guide DLX Series L00410623-1 81

Figure 8.2.5: Varistors on the DC side

8.2.9.2. AC Side

• No alarms are raised regarding the condition of the varistors on the AC side. Therefore,

they need to be checked regularly (at least once per year) or after lightning strikes.

• Replace the damaged varistor with DLX Varistor Kit ordered from Danfoss, part number

139B0570.

• The three varistors on the AC side are located in the right side of the connection area

above the AC terminal area.

• Note the orientation of the varistors if they need to be replaced.

Figure 8.2.6: Varistors on the AC side

Check Varistor

Measure the ohms between the terminal and the bent pin on each varistor as per the

below diagrams:

1 2 ... 76 77 78 79 80 81 82 83 84 85 86

User Guide 1
1. INTRODUCTION 4
2. PRODUCT OVERVIEW 5
2.3. Symbols Used 6
2.3.1. Labels 7
2.4.1. Shipping Damage 8
2.4.3. Unpacking 9
2.4.4. Scope of Delivery 9
2.4.5. Inverter Structure 9
2.4.5.2. Front Covers 10
WARNING 10
CAUTION 11
3. SAFETY PRECAUTIONS 12
3.1.2. Operation 13
3.1.3. Maintenance 13
3.2. Site Preparations 14
3.2.2. Installation 15
Systems 16
3.3.2.1. AC Fuses 17
4. INSTALLATION 18
4.2.1. Wall Bracket 19
4.2.2. Inverter 20
4.3.1. Conductors 22
4.3.2. Connection Area 23
4.3.3. Grounding 23
4.3.4. DC Connections (PV) 24
4.3.4.2. Stringbox 25
4.3.6. Network Connections 31
5. START UP 36
5.2.2. User Interface 37
5.2.3. Function Keys 38
5.2.4. Software Installation 39
5.3. Self Test for Italy 47
5.3.1. Start 48
5.3.2. Voltage Monitoring 49
5.3.3. Frequency Monitoring 50
5.3.4. Finish 51
6. OPERATION 52
6.1.2. Home 53
6.1.2.1. Upper Display Area 54
6.1.3. Status 55
6.1.3.1. Active Alarms 56
6.1.3.2. Inverter Status 56
6.1.3.3. Plant Status 56
6.1.4. Setup 57
6.1.4.2. Network Setup 58
6.1.4.3. Inverter Setup 58
6.2.4.4. Plant Setup 59
6.2.4.5. Grid Setup 59
6.2.5. Commands 62
6.2.6. Alarm Setup 63
6.1.6.2. Inverter Alarms 64
6.1.6.3. Portal Setup 64
6.2.7. Event Log 65
6.2.8. Statistics 65
6.3.1. Without a Network 66
6.3.2. With a Network 67
6.4. Internal Web Server 69
6.4.2. Statistics 70
6.4.3. Setup 71
6.4.4. Event Log 72
6.4.5. Status 73
7. TROUBLESHOOTING 74
8. MAINTENANCE 78
8.2.7. Fan 80
8.2.9. Varistors (VDR) 80
8.2.9.2. AC Side 81
8.3. Replace Devices 83
8.4. Return and Disposal 83
9. WARRANTY 84
10. TECHNICAL DATA 85
Danfoss Solar Inverters A/S 86

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