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SG50KTL-M-20
Sungrow SG50KTL-M-20 User Manual
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6 Electrical C
onnection
User Manua
l
40
Fig. 6-2
Grounding for Inverter
6.4.2
Second Prot
ective Earth T
erminal
Position of Sec
ond PE
T
erminals
There is a second PE terminal on o
ne side of
the inverter and it should be gr
ounded.
Fig. 6-3
Seco
nd PE
termin
al
47
49
Table of Contents
About this Manual
3
Table of Contents
5
1 Safety Instructions
9
2 Product Introduction
14
Intended Usage
14
Product Description
16
Product Appearance
16
Dimensions of Inverter
17
LCD Display Panel
17
DC Switch
18
Technical Description
18
Principle Description
18
Functions Description
19
Derating
20
3 Installation Flow
22
4 Unpacking and Storage
24
Unpacking and Inspection
24
Identifying Inverter
25
Delivery Contents
26
Storage of Inverter
26
5 Installing Inverter Onto Wall
28
Selecting Installation Location
28
Moving Inverter to Installation Site
30
Installing the Inverter
31
Installing on Metal Frame
31
Installing on Concrete Wall
33
6 Electrical Connection
36
Terminals Description
36
Connecting Inverter to AC Grid
38
AC Side Requirements
38
Grid Connection
39
Connecting Inverter to PV Arrays
42
PV Inputs Configuration
42
PV Connection Procedures
44
Grounding the Inverter
47
Grounding System Overview
47
Second Protective Earth Terminal
48
Communication Connection
49
Communication Overview
49
Communication System
50
RS485 Communication Connection
53
Ethernet Connection
55
7 Commissioning
58
Inspection before Commissioning
58
Commissioning Procedure
58
8 Disconnecting, Dismantling and Disposing the Inverter
62
Disconnecting the Inverter
62
Dismantling the Inverter
63
Disposing the Inverter
63
9 Troubleshooting and Maintenance
64
Troubleshooting
64
Troubleshooting of LED Indicator
64
Troubleshooting of Faults in LCD Screen
64
Maintenance
69
Routine Maintenance
69
Maintenance Instruction
69
Contact Sungrow Service
72
10 Operation of LCD Display
73
Description of Button Function
73
Inverter Menu Structure
74
Main Screen
75
Adjust Contrast
76
Checking Running Information
76
Checking History Information
78
Checking Running Records
78
Checking Fault Records
78
Checking History Event Records
79
Checking Energy Records
79
Starting/Stopping
80
Password Entry
81
System Parameter Setting
81
Language Setting
81
Time Setting
82
Total Energy Deviation Adjustment
82
Load Default
83
Checking Firmware Version
83
Running Parameter Setting
84
Main Screen of Run-Param
84
Active/Reactive Power Parameters
85
Reactive Power Regulation
86
Reactive Power Setting for Italy
89
Save P/Q-Set
91
Time Parameters
91
LVRT Parameter
92
Derating Parameters
92
ISO Parameters
92
Protection Parameter Setting
93
Country Setting
93
Single-Stage Protection Parameter Setting
95
Multi-Stage Protection Parameter Setting
95
Protection Recovery Setting
96
Protection Parameter Confirmation
96
Communication Parameter Setting
97
11 Appendix
98
Technical Data
98
Exclusion of Liability
99
About Us
100
Contact Information
101
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Sungrow SG50KTL-M-20 Specifications
General
Brand
Sungrow
Model
SG50KTL-M-20
Category
Inverter
Language
English
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