Solectria Renewables PVI 23TL Installation And Operation Manual Download Page 51 | Manualshive

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background image

PVI

23TL

&

PVI

28TL

Installation

and

Operation

Manual

PVI

Series

Inverters

DOCR

‐

070365

‐

E

Page

50

of

57

13.2

Input

DC

(PV)

Specifications

PVI23TL

PVI

28TL

Units

Absolute

Maximum

Input

Voltage

1000

VDC

Maximum

PV

Power

15.5

per

MPPT

(31)

19

per

MPPT

(38)

kW

Operating

Input

Voltage

300

‐

900

VDC

Strike

(Startup

Voltage/Power)

330VDC/300W

MPPT

Input

Voltage

Range

480

‐

800

500

‐

800

VDC

MPPT

Trackers

2

with

4

‐

Fused

Inputs

per

Zone

Maximum

Operating

Input

Current

25

per

MPPT

(50)

29

per

MPPT

(58)

Amps

Maximum

Short

Circuit

Current

41

per

MPPT

(82)

48

per

MPPT

(96)

Amps

Table

13.3

–

DC

Input

Specifications

13.3

Other

Specifications

Integrated

String

Combiner

Option

8

String

Inputs

,

12

‐

15

A

(4

per

MPPT)

Operational

Ambient

Temperature

‐

13°

to

140°F

(

‐

25°

to

60°C)

Derating

occurs

above

45°C

Storage

Temperature

‐

22°

to

158°F

(

‐

30°

to

70°C)

dBA

(Decibel)

Rating

<

55dBA

@

3m

Operating

Altitude

13123ft/400m

(derating

from

6562ft/2000m)

Inverter

Enclosure

Type

4

Safety

Listings

&

Certifications

UL

1741/IEEE

1547,

IEEE

1547.1,

UL

1699B

CSA

C22.2#107.1,

FCC

part

15

B

Certification

Agency

CSA

Weight

132lbs

(55kg)

BTU

Rating

1911BTU/Hr

Table

13.4

–

Other

Specifications

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Summary of Contents for PVI 23TL

Page 1: ...at any location gutter and or downspout may require cleaning ii Downspout pipes may be cleaned from below with a plumber s snake or similar tool iii If required upper portions of the downspout and cleanout fittings are directly accessible by removing the gutter cover located below the gutter at each column The downspout on the uphill side of the column typically receives most water flow and should...

Page 2: ...PVI 23TL PVI 28TL INSTALLATION AND OPERATION MANUAL Revision E Generation II SN Prefixes 1223 and 1224 2014 Solectria Renewables LLC ...

Page 3: ... Series Inverters DOCR 070365 E Page 2 of 57 IMPORTANT REGISTRATION AND WARRANTY INFORMATION For warranty to become active this inverter must be registered To activate warranty and register inverter please visit the link below www solectria com registration ...

Page 4: ...e risk of electrical shock and to ensure the safe installation and operation of the inverter the following safety symbols are used to indicate dangerous conditions and important safety instructions WARNING This symbol along with the word WARNING indicates a fact or feature important for the safety of the user and or which can cause serious hardware damage if not applied appropriately Use extreme c...

Page 5: ... a hazardous condition SAVE THESE INSTRUCTIONS PRESCRIPTIONS DE SECURITE IMPORTANTES Tous les travaux d installation électrique doivent être exécutés en conformité aux normes électriques locales ainsi qu à la norme nationale américaine et canadienne Le PVI ne contient aucune pièce requérant un entretient effectué par l utilisateur Pour toute maintenance veuillez consulter Solectria Renewables ou u...

Page 6: ...8 4 0 Grounding Connections 21 4 1 Inverter Knockouts 21 4 2 DC AC Grounding 22 5 0 DC Connections from the PV Array 24 5 1 DC Wiring 24 5 2 Dual Maximum Power Point Tracking 26 5 3 Fuse Bypass OPT FUSEBYPASS PVI 23 28 29 6 0 AC Connections at the Inverter 30 6 1 AC Interconnections to Grid 31 7 0 Communication Connections 32 7 1 Connecting TL Inverters with Third Party Data Acquisition Systems 34...

Page 7: ...ifications 50 13 3 Other Specifications 50 13 4 Temperature Derating Curve 51 13 5 Power Derating Curve Out of MPPT Zone 51 13 6 Altitude Derating Curve 52 13 7 Internal Circuit Diagram 52 14 0 Accessory Options 53 14 1 Fuse Bypass 53 14 2 SolrenView Monitoring 54 14 3 Shade Cover 54 14 4 AC DC Disconnect Covers 55 15 0 Appendices 56 Appendix A PVI 23 28TL Datasheet 56 Appendix B String Sizing Too...

Page 8: ...ludes key product protection functions such as Anti Islanding Protection DC Arc fault Circuit Interruption Protection Against Reverse Polarity Short Circuit Protection Monitoring DC Input Insulation Against Ground Monitoring AC Output Voltage and Frequency Monitoring Leakage Current Against Ground GFCI Monitoring DC Injection from AC Output DC Input and AC Output Over voltage Protection DC Input O...

Page 9: ...g the same amount of electrical power that the facility is using then no power is taken from or fed into the utility grid If the facility is using more power than the PV system is providing then the utility grid provides the balance of power If the facility is using less power than the PV system is generating then the excess is fed into the utility grid Be sure to follow local regulations regardin...

Page 10: ...nd DC wire connections Moun ng Bracket Cooling Fans LED Indicators There are four LED indicators used to signal the operating status of the inverter LCD The LCD displays all measured values and parameters Control Keys There are 4 control keys to switch between display menus and to configure the settings of the inverter DC Disconnect Switch Built in lockable disconnect switch used to disconnect the...

Page 11: ...ion M8 25 Assembly Bolt 8 Used for mounting bracket installation M6 16 Screw 6 Four are used to connect the main housing of the inverter to the wiring box 2 are spares M5 10 Screw 8 Six for mounting the inverter to the mounting bracket one for external ground connection one spare M3 8 Screw 2 Secures the partition plate between the signal wires and the AC power wires M5 Flange Nut 2 One for intern...

Page 12: ...PVI 23TL PVI 28TL Installation and Operation Manual PVI Series Inverters DOCR 070365 E Page 11 of 57 Figure 1 3 PVI 23 28TL Inverter Dimensions DC DISCONNECT ...

Page 13: ...a for Device Mounting Because the power electronics are within the rainproof enclosure the inverter can be mounted outdoors The maximum life for the inverter is achieved by mounting the unit in a clean dry and cool location For optimal electrical system efficiency use the shortest possible AC and DC cables but use the maximum allowable cable size Install the inverter in an accessible location foll...

Page 14: ...or guidance within the US The cooling air exhausts are at the right of the inverter As the air intake is on the left side of the inverter section of the unit there should be at least 12 inches of clear space at the left of the enclosure Air should be able to flow all around the unit for proper ventilation It is also recommended to have at least 24 inches of clearance at the bottom side for the Inv...

Page 15: ...the unit from pallet packaging Photos of the damage would also be helpful in documenting potential shipping damage If the unit is to be returned an RMA number must be obtained from Solectria Renewables prior to shipping the unit back 3 2 Unpacking and Moving the Inverter into Place It is recommended to keep the inverter secured in its box and move it as close as possible to the final location prio...

Page 16: ...Positioning and Mounting The Inverter can be mounted vertically or with a 15 90 horizontal angle as shown in Figure 3 1a below Figure 3 1a Allowable Inverter Mounting WARNING Do not install the inverter tilted forward lying on its back or upside down as shown in Figure 3 1b Figure 3 1b Unallowable Inverter Mounting ...

Page 17: ...be a minimum of 20 inches of space available between two adjacently mounted inverters A minimum of 12 inches from the left side and 12 inches from the top are needed for adequate access and cooling A distance of 24 inches from the bottom is recommended for the inverter s LCD to be at eye level If needed this distance can be lowered to 10 inches Figure 3 2 Wall Mounting Clearance Requirements 12 0i...

Page 18: ... Mounting Bracket Clearance Figure 3 3 Wall Mounting Clearance Requirements of Mounting Bracket 3 3 3 Pillar Mounting The minimum inverter mounting dimensions on a pillar are shown in Figure 3 4 below Figure 3 4 Inverter Pillar Mounting Dimensions 7 9in Ý 200mm 11 8in Ý 300mm 23 6in Ý 600mm 11 8in Ý 300mm 11 8in Ý 300mm ...

Page 19: ...tubes available in accessory box 3 Secure the bracket to the wall using eight M8X25 bolts available in accessory box See Figure 3 5 Figure 3 6 Inverter Main Housing Mounting 4 Option 1 Lift mounting Attach both lifting eye bolts available in accessory box to the inverter housing box Use a sling rope or bar passed through both eye bolts to mount the inverter to the bracket Option 2 Manual lift Two ...

Page 20: ...r remove cover plate on the bottom of main housing Figure 3 8 Remove Cover of Wiring Box 7 Using a 2 Philips screw driver remove cover of wiring box and keep the cover it can be re secured later onto the enclosure Figure 3 9 Connecting the Wire Box to the Main Housing 8 Connect the wiring box to the main housing using four M6 16 screws available in accessory box Torque 25in lbs ...

Page 21: ...unting bracket using a 2 Philips screwdriver and six M5 10 bolts available in accessory box Torque 14in lbs Figure 3 11 Attaching the Cover Board 10 The previously removed cover box can be reattached to the left side of the wiring box available in accessory box Figure 3 12 Installing an Anti theft Padlock 11 An anti theft padlock can be installed as shown in the image to the left padlock not avail...

Page 22: ...ty Please consult with customer service if additional knockouts are needed WARNING High touch current Earth connection essential before connecting supply For more details please see the user manual DC INPUT AC OUTPUT COMM PORT ANTENNA 1 6 2 3 4 7 5 3 8 in 6 2 in 8 5 in 10 9 in 277mm 13 7 in 347mm 15 9 in 405mm 18 7 in 475mm 97mm 157mm 217mm 20 3 in 515mm Position Connection Entry 1 Knockout holes ...

Page 23: ...used to terminate the DC equipment ground each terminal can accept a single copper conductor ranging from 6 10AWG Torque 14in lbs As shown in Figure 4 3 below Figure 4 3 DC Equipment Ground PVI 23 28TL inverters also have an AC ground bar with four terminals that can be used to terminate the AC ground Each terminal can accept a single copper conductor ranging from 6 10AWG Torque 14 in lbs a stud t...

Page 24: ...I 23TL PVI 28TL Installation and Operation Manual PVI Series Inverters DOCR 070365 E Page 23 of 57 WARNING Install grounding conductors per local codes and standards Figure 4 4 AC Ground Wiring Connection ...

Page 25: ...rcuit voltage will never exceed 1000VDC Warranty is void if more than 1000VDC is applied to the DC section of the inverter WARNING Fuses in the inverter must only be replaced with the same type and rated fuses as originally installed WARNING The terminal is rated only for CU wire using AL wire directly at the terminal will void the warranty The use of AL wire must follow local code requirements fo...

Page 26: ...nverter to single combined MPPT zone See Section 5 2 for a detailed explanation on the difference between operating in combined or independent MPPT modes The wiring box design has been updated see Gen II below with fuse holders added for ease of installation and removal by the installer For Generation I please refer to the previous revision of this manual which can be obtained electronically throu...

Page 27: ...Size Recommend PV Fuse Conductors Torque ALL Fuse Type 8 Inputs Standard use of Integrated String Combiner Box 4AWG 12A 1000V for PVI 23 28TL 30in lbs PV Fuse 7 Inputs Standard use of Integrated String Combiner Box 4AWG 15A 1000V for PVI 23 28TL 30in lbs PV Fuse 6 Inputs Standard use of Integrated String Combiner Box 4AWG 15A 1000V for PVI 23TL 20A 1000V for PVI 28TL 30in lbs PV Fuse 5 Inputs Stan...

Page 28: ...tween the two MPPT zones NOTE Always connect an equal number of wires to PV1 and PV2 connectors for dual MPPT zone operation If an odd number of connections are required we recommend setting the inverter to single combined MPPT zone NOTE Connecting all of the inputs at zone PV1 will result in only utilizing 50 of the inverter power Figure 5 4 Two MPPTs Operating Independently WARNING Strings must ...

Page 29: ... Use a 2 Philips head screwdriver and remove the busbar that connects INV 1 INV 2 at the top see Figure 5 4 below Figure 5 5 Busbar Connection Used for Single Combined MPPT Option Removed 4 Set the S401 switch to Independent IND mode Figure 5 6 Switch Configuration for Two Individual Dual MPPT Zones NOTE The S401 switch is located under the Enter control key inside of the wiring box Dual tracking ...

Page 30: ...use bypass accessory kit from Solectria Renewables This allows for one to bypass the fuse holders WARNING DC fuses inside the wiring box must be removed before any of the configurations in Table 5 2 are attempted WARNING Fusing at an external combiner box is required for all of the connections in Table 5 2 DC Inputs MPPT Zones Proper Wiring S401 Switch Wire 2 Inputs 2 Independent MPPT Zones IND 2 ...

Page 31: ...d by UL1741 Temperature derating voltage drop and other considerations may dictate that larger than minimum wire sizes be used Verify that wire size choices meet local codes and are properly sized to reduce voltage drop Inverter Model AC Voltage Number of Conductors Max AC Wire Size Min AC Wire Size Torque Max AC Output Current Recommended Breaker Size PVI 23TL 480V 3 1 per phase plus neutral 4AWG...

Page 32: ...verter Compatibility 4 Wire WYE 3 phase Neutral GND Compatible with 23TL Compatible with 28TL Other Configurations All other configurations not mentioned in this document such as Corner Grounded Delta Not compatible with 23TL Not compatible with 28TL Table 6 2 Allowable AC Interconnections to Grid WARNING Do not use power tools to reinstall the wiring box cover ...

Page 33: ...of 57 7 0 Communication Connections PVI 23 28TL inverters support industry standard RS 485 Modbus communication Below is information on the available communication interfaces Communication board 3 4 PAR IND S401 S402 ON OFF P205 P207 P203 P204 P208 Figure 7 1 Communication Section of the Inverter ...

Page 34: ...7 USB Port Port used for firmware upgrade Not available for customer use 3 and 4 P203 and P204 RS 485 RJ45 Port There are two RS 485 signal ports on the inverter No Color Function 1 White Orange 485 2 Orange N C 3 White Green 485 4 Blue N C 5 White Blue N C 6 Green N C 7 White Brown COM 8 Brown N C 5 P208 RS 485 Port 5 Pin Connector Single Inverters 5 pin connector also available for RS 485 commun...

Page 35: ...ltiple inverters at one location it is possible to use one Data Acquisition System for up to 32 inverters Capability of connecting 32 inverters is available after inverters with S N 12241447010 and 12231447001 For any prior S N you are able to use up to 16 inverters Connect the inverter s RS 485 together can be done using standard RJ 45 Ethernet patch cords and plugging these into RJ 45 jacks at e...

Page 36: ...ng box The SolrenView logger is used to connect the TL inverters to the Solectria SolrenView web based monitoring site The SolrenView gateway can be factory installed distributor installed or field installed and is installed out of view inside of the inverter Figure 7 3 High Level Block Diagram of the SolrenView Data Acquisition Infrastructure Figure 7 4 Multiple Inverters with SolrenView Data Log...

Page 37: ...ectrician s NOTE With the PV modules connected and inverter disconnect switches still off perform a final check of the PV voltage and polarity once more using a digital volt meter and probing the positive and negative PV connections 8 1 Turning On the Inverter 1 Turn on the dedicated three phase circuit breaker or disconnect switch at the building service 2 Turn on AC disconnect 3 Turn on DC disco...

Page 38: ...the front of the inverter provide valuable operating information 9 1 LCD POWER RUN GRID FAULT Figure 9 1 LCD The four touch keys below are available to help the customer scroll through the information Table 9 1 Key Descriptions Key Description Function Escape key Back End Mute Enter key Confirm entering the menu Confirm set point Up Page up in selection menu 1 setting increment Down Page down in s...

Page 39: ...ff Inverter is not producing power 1 Verify that there is no Snow on the array 2 Check if Error light is on or flashing if so skip to Section 10 GRID Light on AC voltage is available at the inverter No need Standard Operation Flash AC voltage out of setting range light on 0 5s light off 1 5s Check AC voltage and verify it is within range IEEE 1547 specified range Light off No AC voltage at the inv...

Page 40: ...and DOWN through the list Pressing will take the screen back to the Start Menu Table 9 3 Operation Information Submenu AC Energy EDay Energy kWh Cumulative AC AC Power Output PDayPk kW AC Power Output Run Time DayT Hours AC1 Voltage Uab AC Voltage V AC2 Voltage Ubc AC Voltage V AC3 Voltage Uca AC Voltage V AC Freq AC Frequency Hz AC1 Current Ia AC Current A AC2 Current Ib AC Current A AC3 Current ...

Page 41: ...Err Protect0010 No Yes Figure 9 2 Present Fault Information 9 2 5 History Menu The History Menu displays inverter data history some of which may be modified with the keypad Use the and buttons to scroll UP and DOWN through the list Pressing will take the screen back to the Start Menu The following information can be found in the menu 1 Up to 100 entries of the most recent fault messages recorded a...

Page 42: ...12 15 21 14 中文 English EnglishVer 5 Commun 6 OtherCmd 7 NetConfig ARCOption ARCFaultClear DHCP Enable Disable StaticIP IPAddr 10 122 1 123 SubMask 255 255 255 0 GateWay 10 122 1 254 DNSSer 10 122 0 1 MPPTOption MPPTCycle Min MPPTScan 4 Setting ON OFF ON State KeyBeep Enabled AlarmBeep Disabled Francaise Deutsch EnglishVer Italiano EnglishVer Address 2 BaudRate 3 1 9600 2 19200 Figure 9 4 System Se...

Page 43: ...n ENT NOTE It is often common at sites with High AC voltage above 1 05p u that the Utility would like to modify the power factor to reduce the voltage at the point of common coupling This can be done by setting the inverter to absorb vars For the PVI 23 28TL this can be achieved by setting the inverter to a negative value For example one would set the power factor to 0 95 which will help reduce th...

Page 44: ...Err Inverter s internal communication failure 1 Poor connection of the inverter s internal communication connector 1 Observe for 5min and see whether the alarm is cleared automatically 2 Switch off the inverter s internal disconnects 3 Switch the Inverter back on 4 If error does not clear contact Solectria Customer Service Alarm 3 IntFanErr Inverter s internal fan can t be seen externally is not o...

Page 45: ...ing within the Arc board Protection 2 OverTemp Ambient temperature or temperature inside inverter is too high 1 Ambient temperature outside the inverter is too high 1 Confirm that external ambient temperature is within the specified range of operating temperature 2 Verify air inlet and outlet are not blocked 3 Verify fan is not blocked 4 Verify proper spacing was followed during installation 5 Obs...

Page 46: ...ch the Inverter back on 4 If error does not clear contact Solectria Customer Service Protection 6 PV1 2 Reverse DC inputs connected with incorrect polarities 1 PV positive pole and negative pole are connected in reverse 1 Verify DC voltage polarity is correct on all inputs 2 If error does not clear contact Solectria Customer Service Protection 7 GFCI Err DC leakage current is above recommended val...

Page 47: ...olectria Customer Service Protection 10 Arc Protect Inverter shuts down due to a possible Arc fault concern 1 An internal Arc fault occurred on the DC side 1 Have qualified Electrical Personnel inspect wiring section of Inverter 2 If no issues are found contact Solectria Customer Service 2 Fault with the Arc board Fault 1 IntFault0010 150 Internal non critical fault within the inverter 1 A fault o...

Page 48: ... 5 Check for loose or untightened cables follow torque and safety instructions in the manual 6 Check for cable damage especially whether the cable surface is scratched or smooth Repair or replace the cables if necessary 11 2 Clean the Air Vent Filter On average it is recommended to check the air vent of the fans once every 6 months Do so by performing the following steps 1 Turn off inverter DC dis...

Page 49: ...arranty and Registration The warranty and RMA statements for this product are available online at http www solectria com site assets files 1091 inverter_warranty 1 pdf If you do not have access to the internet or would like to request a copy to be mailed to you please contact the Solectria Renewables Customer Service Department at 978 683 9700 ...

Page 50: ...erating AC Voltage Range 88 110 VAC Operating Frequency 60 Hz Output Frequency Range 59 3 60 5 adjustable 55 65 Power Factor Unity 0 99 adjustable 0 8 Total Harmonic Distortion THD Rated Load 3 Continuous Output Power 23 28 kW Max Output Current 27 7 33 7 Amps Grid Connection Type 3ø N GND One Cycle Short Circuit Current L N GND Duration 52 9Amps RMS 20ms One Cycle Short Circuit Current L1 L2 L3 D...

Page 51: ...PPT 50 29 per MPPT 58 Amps Maximum Short Circuit Current 41 per MPPT 82 48 per MPPT 96 Amps Table 13 3 DC Input Specifications 13 3 Other Specifications Integrated String Combiner Option 8 String Inputs 12 15 A 4 per MPPT Operational Ambient Temperature 13 to 140 F 25 to 60 C Derating occurs above 45 C Storage Temperature 22 to 158 F 30 to 70 C dBA Decibel Rating 55dBA 3m Operating Altitude 13123f...

Page 52: ...3 28TL inverter The inverter operates at full power up to 45 C and derates linearly until 60 C where it shuts down to protect itself Figure 13 1 Temperature Derating Curve 13 5 Power Derating Curve Out of MPPT Zone Figure 13 2 below shows the standard derating curve outside of the MPPT zone Inverters derate linearly outside their rated MPPT range Figure 13 2 Power Derating Outside of MPPT Range ...

Page 53: ...rnal Circuit Diagram The basic power flow within the PVI 23 28TL series of inverters is below Note that the GFDI circuit is not depicted Figure 13 4 Simplified Internal Circuit Diagram for PVI 23 28TL Series Inverters Threelevel inverter N PV1 PV1 PV1 PV1 DC Switch MPPT1 MPPT2 PV2 PV2 PV2 PV2 PV1 PV1 PV2 PV2 ACOutput PVFUSE AFD PV1 PV1 PV1 PV1 PV2 PV2 PV2 PV2 L1 L2 L3 PE Po Pn ...

Page 54: ...ons that allow the inverter to support a wide range of real life applications 14 1 Fuse Bypass OPT FUSEBYPASS PVI 23 28 as discussed in Section 5 3 allows customers to combine the DC inputs outside the inverter and enter with only one or two combined inputs Figure 14 1 Fuse Bypass Two Inputs Two Independent MPPTs Figure 14 2 Fuse Bypass Single Input Combined MPPT ...

Page 55: ...m harsh weather and direct sunlight extremely hot temperatures while reducing thermal gain on the inverter and increasing energy production PVEL now part of BEW DNV Kema performed field testing of the shade cover temperature effects of the inverter case temperatures The normalized data analysis showed 2 15 less temperature rise on the inverter case temperatures Front Back and Top temp rise was 6 4...

Page 56: ... mounted with the Solectria Shade cover Figure 14 4 Inverter With Shade Cover Installed 14 4 AC DC Disconnect Covers OPT DISCOCOVER PVI 23 28 is a tamper resistant cover for the AC and DC disconnects It is for customers that have inverters in public places so the disconnects cannot be turned while the inverter is running Figure 14 5 Temper Proof Cover ...

Page 57: ...ppendix B String Sizing Tool http solectria com support string sizing tool Appendix C Contact Information Solectria Renewables LLC 360 Merrimack Street Lawrence Massachusetts 01843 USA Tel 978 683 9700 Fax 978 683 9702 Sales Support inverters solectria com Customer Support service solrectria com Website www solectria com Appendix D Authorized Distributors Please visit http www solectria com produc...

Page 58: ...PVI 23TL PVI 28TL Installation and Operation Manual PVI Series Inverters DOCR 070365 E Page 57 of 57 Appendix E UL 1741 UL 1699B IEEE 1547 CSA 22 2 107 1 Authorization to Mark ...

Page 59: ...Installation Manual SUNNY TRIPOWER 12000TL US 15000TL US 20000TL US 24000TL US STP12 24TL US IA en 16 Version 1 6 ENGLISH ...

Page 60: ...ts and field usage experience may cause SMA Solar Technology America LLC and or SMA Canada Inc to make changes to these specifications without advance notice or per contract provisions in those cases where a supply agreement requires advance notice SMA shall not be responsible for any damages including indirect incidental or consequential damages caused by reliance on the material presented includ...

Page 61: ...procedure or practice which if not correctly performed or adhered to could result in damage to or destruction of part or all of the SMA equipment and or other equipment connected to the SMA equipment or personal injury Symbol Description DANGER indicates a hazardous situation which if not avoided will result in death or serious injury WARNING indicates a hazardous situation which if not avoided co...

Page 62: ...ead the documentation of the product before working on it Follow all safety precautions and instructions as described in the documentation Important Safety Instructions SMA Solar Technology AG Installation Manual STP12 24TL US IA en 16 4 ...

Page 63: ... jurisdiction of installation SMA assumes no responsibility for the compliance or noncompliance with such laws or codes in connection with the installation of the product The product contains no user serviceable parts For all repair and maintenance always return the unit to an authorized SMA Service Center Before installing or using the product read all of the instructions cautions and warnings in...

Page 64: ... 22 6 Electrical Connection 25 6 1 Safety during Electrical Connection 25 6 2 Overview of the Connection Area 27 6 2 1 View from Below 27 6 2 2 Interior View 28 6 3 AC Connection 28 6 3 1 Requirements for the AC Connection 28 6 3 2 Connecting the Inverter to the Utility Grid 29 6 3 3 Connecting Additional Grounding 31 6 4 DC Connection 32 6 4 1 Requirements for the DC Connection 32 6 4 2 Connectin...

Page 65: ... 10 3 2 Cleaning the Fan on the Left Hand Side of the Enclosure 55 10 4 Checking the Function of the Fans 57 10 5 Checking the PV System for Ground Faults 57 10 6 Resetting the Operation Inhibition after Detection of an Arc Fault 60 11 Recommissioning the Inverter 61 12 Decommissioning the Inverter 63 13 Procedure for Receiving a Replacement Device 65 14 Technical Data 69 14 1 DC AC 69 14 1 1 Sunn...

Page 66: ...15 Spare Parts and Accessories 75 16 Compliance Information 76 17 Contact 77 Table of Contents SMA Solar Technology AG Installation Manual STP12 24TL US IA en 16 8 ...

Page 67: ...e standards and directives Knowledge of and compliance with this document and all safety information 1 3 Additional Information Links to additional information can be found at www SMA Solar com Document title Document type Sunny Explorer Software for Visualizing and Administrating a Speedwire System User Manual Webconnect Systems in Sunny Portal Registration in Sunny Portal and setting or changing...

Page 68: ...s not safety relevant Indicates a requirement for meeting a specific goal Desired result A problem that might occur 1 5 Nomenclature Complete designation Designation in this document SMA America Production LLC SMA SMA Solar Technology Canada Inc SMA SMA Speedwire Speedwire PV system PV system Sunny Tripower 12000TL US 15000TL US 20000TL US 24000TL US Sunny Tripower inverter SMA Connection Unit 100...

Page 69: ...anual of the SMA Connection Unit US at www SMA Solar com PV modules with a high capacity to ground may only be used if their coupling capacity does not exceed 3 5 μF All components must remain within their permitted operating ranges at all times To protect the PV system against excessive reverse currents under fault conditions the National Electrical Code Section 690 9 requires overcurrent protect...

Page 70: ...s of the PV array When exposed to sunlight the PV array generates dangerous DC voltage which is present in the DC conductors and the live components of the inverter Touching the DC conductors or the live components can lead to lethal electric shocks If you disconnect the DC connectors from the inverter under load an electric arc may occur leading to electric shock and burns Do not touch non insula...

Page 71: ...s for the surface to cool sufficiently Observe the safety messages on the inverter Damage to the inverter due to moisture and dust intrusion Dust or moisture intrusion can damage the inverter and impair its functionality Close all enclosure openings of the inverter tightly Never open the inverter when it is raining or snowing or the humidity is over 95 2 Safety SMA Solar Technology AG Installation...

Page 72: ... delivery is incomplete or damaged Figure 1 Components included in the scope of delivery Position Quantity Designation A 1 Inverter B 1 Wall mounting bracket C 1 Installation manual production test report supplementary sheet with the default settings 3 Scope of Delivery SMA Solar Technology AG Installation Manual STP12 24TL US IA en 16 14 ...

Page 73: ...uit input voltage XXX Vdc Range of input operating DC voltage MPPT XXX XXX Cdc XXX V XXX XXX Cdc XXX V Oper temp range XXX F to XXX F XX C to XX C This unit contains a Residual Current Monitor Isolation Monitor and Interrupter This unit contains a listed Photovoltaic Arc Fault Circuit Protection of Type 1 ENCLOSURE TYPE XR IP54 For more details and für tightening torque allowable wire size and typ...

Page 74: ... be rectified by a qualified person see Section 10 Troubleshooting page 43 You will find the detailed error message in Sunny Portal or Sunny Explorer Blue LED no function H Lower enclosure lid Symbols on the Inverter and on the Type Label Symbol Explanation Inverter This symbol is located next to the green LED which indicates feed in oper ation of the inverter Observe the documentation This symbol...

Page 75: ...o the utility grid 4 2 Interfaces and Functions The inverter can be equipped or retrofitted with the following interfaces and functions SMA Speedwire Webconnect The inverter is equipped with SMA Speedwire Webconnect as standard SMA Speedwire Webconnect is a type of communication based on the Ethernet standard This enables inverter optimized 10 100 Mbit data transmission between Speedwire devices i...

Page 76: ...rical Code Article 690 11 the inverter has a system for arc fault detection and interruption An electric arc with a power of 300 W or greater must be interrupted by the AFCI in the time specified by UL 699B A tripped AFCI can only be reset manually The 2011 edition of the National Electrical Code Section 690 11 stipulates that newly installed PV systems attached to a building must be fitted with a...

Page 77: ... be suitable for the weight and dimensions of the inverter see Section 14 Technical Data page 69 To ensure optimum operation the ambient temperature should be between 25 C 13 F and 60 C 140 F The inverter can be mounted in a position that is directly exposed to solar irradiation However it is possible that the inverter may become overheated and its power be reduced as a result Climatic conditions ...

Page 78: ...heat dissipation for the inverter the following requirements for clearances should be observed This will prevent the inverter power output from being reduced due to excessive temperatures However smaller clearances are permitted without causing any risk 5 Mounting SMA Solar Technology AG Installation Manual STP12 24TL US IA en 16 20 ...

Page 79: ...le inverters are mounted in areas with high ambient temperatures increase the clearances between the inverters and ensure an adequate fresh air supply if possible 1382 mm 54 41 in 2224 mm 87 56 in 530 mm 20 87 in 50 mm 1 97 in 400 mm 15 45 in 315 mm 14 45 in 415 mm 16 34 in 438 mm 17 24 in 415 mm 16 34 in 940 mm 37 01 in 7 48 in 190 mm Permitted and prohibited mounting positions The inverter must ...

Page 80: ...s that are suitable for the screws diameter 30 mm 1 8 in at maximum If necessary two screw anchors suitable for the support surface and the screws For transporting the inverter with a crane two eye bolts suitable for the weight of the inverter size M10 To secure the inverter from being lifted off two screws washers and screw anchors that are suitable for the support surface 5 Mounting SMA Solar Te...

Page 81: ...ration Mount the inverter in such a way that it cannot be touched inadvertently during operation Procedure 1 Risk of injury due to damaged cables There may be power cables or other supply lines e g gas or water routed in the wall Ensure that no lines are laid in the wall which could be damaged when drilling holes 2 Align the wall mounting bracket horizontally on the wall and use it to mark the pos...

Page 82: ...ted with a crane remove the eye bolts from the threads on the top of the inverter and reinsert the filler plugs 9 In order to secure the inverter from being lifted off the wall accidentally attach it to the wall with suitable mounting material Use both of the lower drill holes on the rear panel of the inverter 10 Ensure that the inverter is securely in place 5 Mounting SMA Solar Technology AG Inst...

Page 83: ...ion 9 Disconnecting the Inverter from Voltage Sources page 41 Risk of fire To reduce the risk of fire connect only to a circuit provided with 50 A maximum branch circuit overcurrent protection in accordance with the National Electrical Code NE ANSI NFPA 70 Damage to seals on the enclosure lids in subfreezing conditions If you open the upper and lower enclosure lids when temperatures are below free...

Page 84: ...e to Wire Nuts Potential damage to or failure of the inverter Do not use Wire Nuts Electrical installations All electrical installations must be carried out in accordance with the local standards and the National Electrical Code ANSI NFPA 70 or the Canadian Electrical Code CSA C22 1 Before connecting the inverter to the utility grid contact your local grid operator The electrical connection of the...

Page 85: ...er 27 8 mm to 28 0 mm 1 09 in to 1 1 in B Enclosure opening with filler plug for Ethernet connection diameter 27 8 mm to 28 0 mm 1 09 in to 1 1 in C Enclosure opening for AC connection diameter 34 5 mm to 34 7 mm 1 36 in to 1 37 in D Enclosure openings for DC connection diameter 34 5 mm to 34 7 mm 1 36 in to 1 37 in 6 Electrical Connection SMA Solar Technology AG Installation Manual 27 STP12 24TL ...

Page 86: ...ents for the AC Connection Additionally required material not included in the scope of delivery 1 metal conduit 25 4 mm 1 in 1 UL listed rain tight conduit fitting for wet locations 25 4 mm 1 in Cable requirements The AC cable must be approved for temperatures of over 90 C 194 F The AC cable must be designed in accordance with the local installation requirements The AC cable must be made of solid ...

Page 87: ...nnection The load break switch or circuit breaker must be listed see National Electrical Code ANSI NFPA 70 Loads installed between the inverter and the circuit breaker must be fused separately The overcurrent protection for the AC output circuit is to be provided by others 6 3 2 Connecting the Inverter to the Utility Grid Requirements All electrical installations must be carried out in accordance ...

Page 88: ...nd tighten from the inside using the counter nut 7 Attach the conduit to the enclosure opening 8 Insert the AC cable through the conduit into the inverter 9 Strip the cable insulation by 12 mm to 13 mm 0 5 in 10 Open all locking levers of the connecting terminal plate right up to the stop 11 Risk of fire if two conductors are connected to one terminal If you connect two conductors to a terminal a ...

Page 89: ...ll locking levers of the connecting terminal plate are closed and all conductors are tightly connected 6 3 3 Connecting Additional Grounding The inverter is equipped with a grounding terminal with two connection points on the DC side for additional grounding e g use of a grounding electrode The grounding terminal is yellow green and identified as follows Equipment grounding terminal symbol Groundi...

Page 90: ... torque 5 8 Nm 51 in lb 7 Make sure the equipment grounding conductor or the grounding electrode cable is firmly in place 8 Reattach the DC protective cover Tighten all four screws with an Allen key AF 3 in the order 1 to 4 torque 3 5 Nm 31 in lb 6 4 DC Connection 6 4 1 Requirements for the DC Connection Requirements for the PV modules per input All PV modules must be of the same type All PV modul...

Page 91: ...6 4 2 Connecting the PV Array Requirements A means of disconnecting the inverter from the PV array must be present The grounding of the PV system must be executed as per the specifications of Paragraph 690 41 to 690 47 of the National Electrical Code ANSI NFPA 70 and is the responsibility of the installer All electrical installations must be carried out in accordance with the local standards and t...

Page 92: ...ting the string to INPUT A connect the DC cables to the connecting terminal plate for the DC connection Connect the positive DC cable to the red terminal A and tighten with a screwdriver torque 5 8 Nm 51 in lb Connect the negative DC cable to the black terminal A and tighten with a screwdriver torque 5 8 Nm 51 in lb 11 For connecting the string to INPUT B connect the DC cables to the connecting te...

Page 93: ...least 2 x 2 x 0 22 mm 2 x 2 x 24 AWG Maximum cable length between two nodes when using patch cables 50 m 164 ft Maximum cable length between two nodes when using installation cables 100 m 328 ft UV resistant for outdoor use Procedure 1 Danger to life due to electric shock Disconnect the inverter from all voltage sources see Section 9 page 41 2 Connect one end of the network cable to the inverter R...

Page 94: ...he computer or router or connect it to another node You can only connect the inverter to other nodes via star topology 4 Commission the inverter see Section 7 page 37 6 Electrical Connection SMA Solar Technology AG Installation Manual STP12 24TL US IA en 16 36 ...

Page 95: ... is routed so that it cannot be damaged by the partition in the lower enclosure lid 2 Insert the lower enclosure lid from above and flip it down The screws must protrude from the lower enclosure lid 3 Tighten all six screws with an Allen key AF 3 in the order 1 to 6 torque 2 0 Nm 17 7 in lb 4 Switch on all DC disconnectors between the inverter and the PV array 5 Switch on the circuit breaker and a...

Page 96: ...rs that have sensitive functions can only be viewed and changed by qualified persons for further information on changing parameters refer to the manual of the communication product The operating parameters of the inverter are set to certain values by default To optimize inverter operation you can change the operating parameters using a communication product Requirements Depending on the type of co...

Page 97: ...shaded PV modules activate SMA OptiTrac Global Peak and set the interval at which the inverter is to optimize the MPP of the PV system The basic procedure for changing operating parameters is explained in another section see Section 8 2 Changing Operating Parameters page 38 Procedure 1 Select the parameter OptiTrac Global Peak switched on or MPPShdw IsOn and set to On 2 Select the parameter Cycle ...

Page 98: ...g upper min threshold trip time Undervoltage Slow maximum time 0 1 s to 1 000 s 2 0 s Voltage monitoring median min threshold trip time Undervoltage Fast maximum time 0 1 s to 1 000 s 0 16 s Frequency monitoring lower maximum threshold Overfrequency 50 Hz to 65 Hz 60 5 Hz Frequency monitoring upper minimum threshold Underfrequency 44 Hz to 60 Hz 59 3 Hz Frq monitoring lower max threshold trip time...

Page 99: ... remove it prior to opening the enclosure lids of the inverter e g by melting the ice with warm air Observe the applicable safety regulations Destruction of the measuring device due to overvoltage Only use measuring devices with a DC input voltage range of 1 000 V or higher Procedure 1 Danger to life due to electric shock Disconnect the inverter from the utility grid and ensure that it cannot be r...

Page 100: ...er 6 Use a suitable measuring device to ensure that no voltage is present at the DC terminals 7 Use a suitable measuring device to ensure that no voltage is present at the AC terminals 9 Disconnecting the Inverter from Voltage Sources SMA Solar Technology AG Installation Manual STP12 24TL US IA en 16 42 ...

Page 101: ...ng limits If the grid voltage is permanently within the permissible range and this message is still displayed contact the SMA Service Line 202 to 203 Grid fault The utility grid has been disconnected the AC cable is damaged or the grid voltage at the connection point of the inverter is too low The inverter has dis connected from the utility grid Corrective measures 1 Make sure that the circuit bre...

Page 102: ...e inverter is no longer in grid parallel operation The inverter has stopped feeding into the utility grid Corrective measures Check the grid connection for significant short term frequency fluctuations 404 Grid fault The inverter is no longer in grid parallel operation The inverter has stopped feeding into the utility grid Corrective measures Check the grid connection for significant short term fr...

Page 103: ... SMA Service Line 901 PE conn missing Check connection The grounding conductor is not correctly connected Corrective measures Ensure that the grounding conductor is correctly connected see Section 6 3 AC Connection page 28 1302 Waiting for grid voltage Installation failure grid connection Check grid and fuses The inverter has detected an error in the AC cabling The inverter cannot con nect to the ...

Page 104: ...ow on the PV modules or insufficient irradiation The inverter interrupts feed in operation and can no longer connect to the utility grid Corrective measures 1 If irradiation is too low wait for it to increase 2 If this message is displayed frequently ensure that the PV array has been correctly rated and wired 3303 Unstable operation Data storage blocked There is not enough power at the DC input of...

Page 105: ...n 10 5 page 57 3601 High discharge curr Check generator The leakage currents of the inverter and the PV array are too high There is a ground fault a residual current or a malfunction The inverter interrupts feed in operation immediately after exceeding a thresh old and then automatically reconnects to the utility grid If this process hap pens five times a day the inverter disconnects from the util...

Page 106: ...ation inhibition see Section 10 6 page 60 6001 to 6438 Self diagnosis Interference device The cause must be determined by the SMA Service Line Corrective measures Contact the SMA Service Line 6501 to 6511 Self diagnosis Interference device The inverter has switched off due to excessive temperature Corrective measures 1 Clean the fans see Section 10 3 page 54 2 Ensure that the inverter has sufficie...

Page 107: ...n The cause must be determined by the SMA Service Line Corrective measures Contact the SMA Service Line 7101 SD card defective The SD memory card is not formatted Corrective measures Re format the SD memory card Re save the files to the SD memory card 7105 Param setting failed Parameters could not be set using the memory card The inverter continues feeding power into the grid Corrective measures E...

Page 108: ...date main CPU failed The cause must be determined by the SMA Service Line Corrective measures Contact the SMA Service Line 7305 Update RS485I module failed Update of RS485i module failed Corrective measures Retry update If the error recurs contact the SMA Service Line 7311 Update language table failed Updating the language table failed Corrective measures Retry update If the error recurs contact t...

Page 109: ...rective measures Contact the SMA Service Line 8001 Derating occurred The inverter has reduced its power output for more than ten minutes due to ex cessive temperature Corrective measures Clean the cooling fins on the rear of the enclosure and the air ducts on the top using a soft brush Clean the fans see Section 10 3 page 54 Ensure that the inverter has sufficient ventilation 8101 to 8104 Communic...

Page 110: ... Timeout in communication for reactive power spec Communication to the system control absent Depending on the fall back set ting either the last received values will be retained or the reactive power will be set to the set value Corrective measures Ensure that the connection to the system manager e g Sunny Home Manager is intact and that no cables are damaged or that no plugs have been pulled 8710...

Page 111: ...ter is setting the parameters 27104 Parameters set successfully The inverter is setting the parameters 27107 Update file OK The update file found is valid 27108 SD card is read The inverter is currently reading the SD memory card 27109 No new update SDcard There are no update files relevant for this inverter on the SD memory card or the available update has already been carried out 27304 Update RS...

Page 112: ...the enclosure Procedure 1 Danger to life due to electric shock Disconnect the inverter from all voltage sources see Section 9 Disconnecting the Inverter from Voltage Sources page 41 2 Wait for the fan to stop rotating 3 Remove the fan guard and clean it Use a screwdriver to push the two locking tabs at the right hand edge of the fan guard to the right hand side and remove them from the retainer Ca...

Page 113: ...e see Section 10 3 2 Cleaning the Fan on the Left Hand Side of the Enclosure page 55 10 3 2 Cleaning the Fan on the Left Hand Side of the Enclosure 1 Danger to life due to electric shock Ensure that the inverter is disconnected from all voltage sources see Section 9 Disconnecting the Inverter from Voltage Sources page 41 2 Remove the ventilation grids on the left hand and right hand sides and clea...

Page 114: ...e locking tabs on the fan toward the center of the fan 6 Carefully remove the fan from the inverter 7 Release and remove the fan plug 8 Damage to the fan due to compressed air Clean the fan only with a soft brush a paint brush or a damp cloth 9 After cleaning insert the fan plug into the pin connector until it snaps into place 10 Insert the fan into the inverter until it snaps into place 11 Attach...

Page 115: ...et to On 2 Save settings 3 Check whether air is being drawn in through the bottom and is coming out of the upper ventilation grids and whether the fans are making any unusual noises If no air is being drawn in through the bottom no air is coming out of the ventilation grids or the fans are making unusual noises then the fans were presumably installed improperly Check whether the fans have been ins...

Page 116: ... faults Test by Measuring the Voltage Proceed as follows to check each string in the PV system for ground faults Procedure 1 Danger to life due to high voltages Disconnect the inverter from all voltage sources see Section 9 page 41 2 Measure the voltages Measure the voltage between the positive terminal and the ground potential PE Measure the voltage between the negative terminal and the ground po...

Page 117: ...n resistance Procedure 1 Calculate the expected insulation resistance per string 2 Danger to life due to high voltages Disconnect the inverter from all voltage sources see Section 9 page 41 3 Install the short circuit device 4 Connect the measuring device for insulation resistance 5 Short circuit the first string 6 Set the test voltage The test voltage should be as close as possible to the maximum...

Page 118: ... available Procedure 1 Danger to life due to electric shock Disconnect the inverter from all voltage sources see Section 9 page 41 2 Ensure that the PV modules the connected cables and plugs are not defective Repair or replace defective PV modules cables or plugs 3 Recommission the inverter see Section 7 page 37 4 Access the user interface of the communication product 5 Reset the operation inhibit...

Page 119: ...ure must be sealed tightly The factory mounted filler plugs can be used for that purpose Procedure 1 Ensure that all DC cables are securely in place 2 Reattach the DC protective cover Tighten all four screws with an Allen key AF 3 in the order 1 to 4 torque 3 5 Nm 31 in lb 3 Make sure that the AC cable is routed so that it cannot be damaged by the partition in the lower enclosure lid 4 Insert the ...

Page 120: ...in operation begins Green LED is flashing The DC input voltage is still too low Once the DC input voltage is sufficiently high feed in operation begins The red LED is glowing There is probably an error Rectify the error see Section 10 Troubleshooting page 43 11 Recommissioning the Inverter SMA Solar Technology AG Installation Manual STP12 24TL US IA en 16 62 ...

Page 121: ... the top part of the enclosure This will prevent the inverter tipping forward If the inverter is to be transported and lifted with a crane remove the filler plugs on the top of the inverter and screw the eye bolts into the threads Procedure 1 Danger to life due to electric shock Disconnect the inverter from all voltage sources see Section 9 page 41 2 Disconnect the DC cables from the connecting te...

Page 122: ...rder 1 to 6 torque 2 Nm 0 3 Nm By tightening the screws in the prescribed order you avoid warping the lid which would keep it from sealing correctly Useful hint If the screws fall out of the lower enclosure lid insert the long screw into the lower middle hole and the five short screws into the other holes 14 Release the screws from the wall mounting bracket and take the bracket off the wall 15 If ...

Page 123: ...ting bracket Carry and lift the inverter in an upright position with several people without tilting it With one hand grasp the recessed grip and with the other hand support the top part of the enclosure This will prevent the inverter tipping forward If the inverter is to be transported and lifted with a crane remove the filler plugs on the top of the inverter and screw the eye bolts into the threa...

Page 124: ...Replacement Device Damage to seals on the enclosure lids in subfreezing conditions If you open the upper and lower enclosure lids when temperatures are below freezing the enclosure seals can be damaged This can lead to moisture entering the inverter Do not open the inverter at ambient temperatures lower than 5 C 23 F If a layer of ice has formed on the seal of the lid when temperatures are below f...

Page 125: ...e enclosure lid of the replacement device The screws must protrude from the lower enclosure lid 5 Tighten all six screws in the lower enclosure lid with an Allen key AF 3 in the order 1 to 6 torque 2 Nm 0 3 Nm By tightening the screws in the prescribed order you avoid warping the lid which would keep it from sealing correctly Useful hint If the screws fall out of the lower enclosure lid insert the...

Page 126: ...om sealing correctly Useful hint If the screws fall out of the lower enclosure lid insert the long screw into the lower middle hole and the five short screws into the other holes 4 Pack the defective inverter in the packaging of the replacement device and arrange with SMA for it to be picked up 13 Procedure for Receiving a Replacement Device SMA Solar Technology AG Installation Manual STP12 24TL U...

Page 127: ... circuit current per string 43 A 43 A 43 A Maximum residual input current 1 187 Apk 1 187 Apk 1 187 Apk Duration of the maximum residual in put current 0 0072 s 0 0072 s 0 0072 s Number of independent MPP inputs 2 2 2 Strings per MPP input 1 1 1 AC Output STP 12000TL US 10 STP 15000TL US 10 STP 20000TL US 10 Rated power at 277 V 60 Hz 12 000 W 15 000 W 20 000 W Maximum apparent AC power 12 000 VA ...

Page 128: ... 59 3 Hz to 60 5 Hz Maximum utility backfeed current to utility Limits of accuracy of voltage measure ment 2 2 2 Limits of accuracy of frequency mea surement 0 1 Hz 0 1 Hz 0 1 Hz Limits of accuracy of time measure ment at nominal trip time 0 1 0 1 0 1 Output power at 60 C 140 F 12 000 W 15 000 W 17 000 W Maximum power operating ambient temperature 45 C 113 F 45 C 113 F 45 C 113 F Power factor at r...

Page 129: ...ximum short circuit current per string 43 A Maximum residual input current 1 187 Apk Duration of the maximum residual input current 0 0072 s Number of independent MPP inputs 2 Strings per MPP input 1 AC Output STP 24000TL US 10 Rated power at 277 V 60 Hz 24 000 W Maximum apparent AC power 24 000 VA Rated grid voltage 480 V 277 V WYE AC voltage range 243 7 V to 304 7 V Nominal AC current at 277 V 2...

Page 130: ...Maximum power operating ambient temperature 45 C 113 F Power factor at rated power 1 Displacement power factor adjustable 0overexcited to 0underexcited Feed in phases 3 Connection phases 3 Overvoltage category in accordance with UL1741 IV Efficiency STP 24000TL US 10 Maximum efficiency ηmax 98 5 CEC efficiency ηCEC 98 0 14 2 General Data Width x height x depth 665 mm x 650 mm x 265 mm 26 18 in x 2...

Page 131: ... national standards as per 05 2013 UL1741 CAN CSA C22 2 No 107 1 01 14 3 Protective Devices DC reverse polarity protection Short circuit diode AC short circuit current capability Current control Grid monitoring SMA Grid Guard 3 Maximum permissible fuse protection 50 A Ground fault monitoring STP 12000TL US 10 Insulation monitoring Riso 417 kΩ Ground fault monitoring STP 15000TL US 10 Insulation mo...

Page 132: ... 14 6 Torques Upper enclosure lid screws 6 0 Nm 53 in lb Lower enclosure lid screws 2 0 Nm 17 7 in lb Screws for DC protective cover 3 5 Nm 31 in lb Screw for grounding 5 8 Nm 51 in lb Screw terminal DC input 5 0 Nm 44 in lb 14 7 Data Storage Capacity Energy yields in the course of the day 63 days Daily yields 30 years Event messages for users 250 events Event messages for installers 250 events 14...

Page 133: ...f description SMA order number RS485 data module Retrofit kit RS485 communica tion interface DM 485CB US 10 SMA Connection Unit 1000 US String Combiner with DC load break switch for connecting eight strings up to 1 000 V CU1000 US 10 Ventilation grid Ventilation grid set right and left as spare part 45 10899080 15 Spare Parts and Accessories SMA Solar Technology AG Installation Manual 75 STP12 24T...

Page 134: ...at interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and the r...

Page 135: ... modules connected Mounting location and altitude of the inverter Inverter message Optional equipment e g communication products United States Esta dos Unidos SMA America LLC Rocklin CA Toll free for USA Canada and Puerto Rico Llamada gra tuita en EE UU Canadá y Puerto Rico 1 877 MY SMATech 1 877 697 6283 International Internacional 1 916 625 0870 Canada Canadá SMA Canada Inc Toronto Toll free for...

Page 136: ...SMA Solar Technology www SMA Solar com ...

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