Table Of Contents - CanadianSolar CSI-25KTL-GS-FL Installation And Operation Manual

Contents
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CanadianSolar
1. Introduction ···························································································································································· 5
1.1 Product Description ····················································································································· 5
1.2 Unpacking and storage ············································································································ 6
1.2.1 Storage ······························································································································
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2. Safety instructions ······································································································································· 8
2.1 Safety symbols ······························································································································ 8
2.2 General safety instructions ··································································································· 8
2.3 Notice for use ································································································································· 9
2.4 Ground Fault Circuit Interrupt (GFCI) ···········································································
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3. Installation ···························································································································································· 11
.2.
3.1 Environmental considerations ·····························································································
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3.1.1 Select a location for the inverter ········································································
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3.1.1.1 Examples of correct and incorrect installations ······························ 12
3.1.2 Other environmental considerations ............................................................... 12
3.1.2.1 Consult technical data ···················································································· 12
3.1.2.2 Vertical wall installation ················································································· 12
3.1.2.3 Avoiding direct sunlight ················································································· 12
3.1.2.4 Air circulation
...................................................................................................... 12
3.1.2.5 Flammable substances ················································································· 13
3.1.2.6 Living area ··············································································································· 13
3.2 Product handling ························································································································ 13
3.3 Mounting the inverter ··············································································································· 14
3.4 Wiring box configuration ······································································································
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3.5 DC connection ······························································································································
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3.5.1 DC connection high voltage danger and overcharging notice 18
3.5.2 String sizing ····················································································································· 19
3.5.3 Recommended fusing section for each channel or connection ······ 19
3.5.3.1 Maximum allowable amperage per fuse and channel ··············· 20
3.5.4 Process of connecting DC wires to terminals .......................................... 20
3.5.4.1 Using spring terminal ···················································································· 20
3.6 Making connections to theAC side of the inverter ................................................ 21
3.6.1 Connecting the inverter to the utility grid ··················································· 21
3.6.2 Wiring procedure ·········································································································
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CanadianSolar
Contents
3. 7 External ground connection point ···················································································· 23
4. Communication & Monitoring ············································································································ 24
4.1 RS485 ················································································································································ 25
4.1.1 Wiring a single inverter and daisy chain inverter ······································· 25
4.1.2 Maximum allowable inverters using RS485 ................................................ 25
4.1.3 120-ohm (0) resistor placement ········································································ 25
5. Commissioning ················································································································································
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5.1 Selecting the appropriate grid standard ········································································ 26
5.1.1 Verifying grid standard for country of installation ···································· 26
5.2 Changing the grid standard ··································································································· 26
5.2.1 Procedure to set the grid standard ·································································· 26
5.3 Setting a custom grid standard ·························································································· 29
5.4 Preliminary checks ·····················································································································
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5.4.1 DC Connections ············································································································
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5.4.2AC Connections ············································································································
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5.4.3 DC configuration ········································································································· 30
5.4.3.1
voc ...........................................................................................................................
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5.4.3.1.1 Check string voltage ····················································································
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5.4.3.2 Leakage to ground
....................................................................................... 31
5.4.3.2.1 Detection of leakage to ground
......................................................... 31
5.4.4 AC configuration
5.4.4.1 Measure VAC
...................................................................................................... 31
................................................................................................ 31
5.4.4.2 Phase rotation test ······················································································· 32
5.4.5AC Secure inverter wiring box ········································································ 32
6. Normal operation ······································································································································· 33
6.1 Start-up procedure ·················································································································· 33
6.2 Stopping procedure ··············································································································· 33
6.3 Optional 7" LCD front panel display interface ......................................................... 34
6.3.1 Main menu ····················································································································· 36
6.4 Sub-menu information ·········································································································36
6.5 Settings
··········································································································································37
6.5.1 Setting time ··················································································································38
6.5.2 Setting inverter address for communications ·······································38
.3.