SMA SUNNY TRIPOWER CORE1-US Replacement Manual
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SMA SUNNY TRIPOWER CORE1-US Replacement Manual

SMA SUNNY TRIPOWER CORE1-US Replacement Manual

Replacing defective assemblies
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Replacement Manual
SUNNY TRIPOWER CORE1-US
(STP 33-US-41, STP 50-US-41, STP 62-US-41)
Replacing Defective Assemblies
W E R
R I P O
N Y T
S U N
ENGLISH
STP33-62-US-41-RM-en-10 | Version 1.0

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Summary of Contents for SMA SUNNY TRIPOWER CORE1-US

  • Page 1 Replacement Manual SUNNY TRIPOWER CORE1-US (STP 33-US-41, STP 50-US-41, STP 62-US-41) Replacing Defective Assemblies W E R R I P O N Y T S U N ENGLISH STP33-62-US-41-RM-en-10 | Version 1.0...

  • Page 2: Table Of Contents

    Table of Contents SMA Solar Technology AG Table of Contents Information on this Document..................... Validity ................................Target Group ..............................Content and Structure of this Document......................Levels of warning messages..........................Symbols in the Document..........................Typographies in the document ........................Additional Information.............................
  • Page 3 SMA Solar Technology AG Table of Contents Replacement of AST assembly........................42 7.3.1 Removing the AST Assembly ........................... 42 7.3.2 Installing the AST Assembly..........................44 Mounting the Enclosure Lid of the AC-Power Unit..................46 Packing and Returning the Defective Assembly / Disposing of the Defective Assembly ..47 Contact ............................

  • Page 4: Information On This Document

    The tasks described in this document must only be performed by qualified persons. Qualified persons must have the following skills: • Training and approval must be made by SMA Solar Technology AG or subsidiary companies of SMA Solar Technology AG to carry out the activities described in this document •...

  • Page 5: Symbols In The Document

    "PUBLIC CYBER SECURITY - Guidelines for a Secure PV System Communication" Technical information "Short-Circuit Currents" Technical Information Information on short-circuit currents of SMA PV inverters "Integrated Plant Control and Q on Demand 24/7" Technical Information Detailed explanation of functions and description for setting the functions...

  • Page 6: Safety

    SMA shall not be held liable for any damage caused directly or indirectly due to such changes by unauthorized persons.
  • Page 7 SMA Solar Technology AG 2 Safety DANGER Danger to life due to electric shock when touching live system components in case of a ground fault If a ground fault occurs, parts of the system may still be live. Touching live parts and cables results in death or lethal injuries due to electric shock.
  • Page 8 Unauthorized alterations will void guarantee and warranty claims and in most cases terminate the operating license. SMA shall not be held liable for any damage caused by such changes.

  • Page 9: Overview Of The Assemblies

    SMA Solar Technology AG 3 Overview of the Assemblies 3 Overview of the Assemblies DC-Power Unit DCEMV Connection Unit Connection Unit ACRLY AC-Power Unit Figure 1: Position of the assemblies in the inverter Replacement Manual STP33-62-US-41-RM-en-10...

  • Page 10: Replacing Assemblies In The Dc Connection Unit

    4 Replacing Assemblies in the DC Connection Unit SMA Solar Technology AG 4 Replacing Assemblies in the DC Connection Unit Scope of Delivery for the DC Connection Unit Assemblies Check the scope of delivery for completeness and any externally visible damage. Contact your distributor if the scope of delivery is incomplete or damaged.

  • Page 11: Replacing The Communication Assembly

    ☐ 2-pole voltage detector that does not have its own voltage source Procedure: 1. Disconnect the inverter from voltage sources (at www.SMA-Solar.com). 2. Make a note of the position of the DC field plugs. 3. Release and remove the DC field plugs.
  • Page 12 4 Replacing Assemblies in the DC Connection Unit SMA Solar Technology AG • On the right-hand side of the DC switch, each contact DC+ and DC- against the grounding conductor (red, blue, white, black, gray, green, lilac and blue conductor against grounding conductor) 6.

  • Page 13: Installing The Communication Assembly

    SMA Solar Technology AG 4 Replacing Assemblies in the DC Connection Unit 10. Remove the three screws of the communication assembly (TX20), remove the communication assembly and dispose of the screws. 4.2.2 Installing the Communication Assembly 1. Insert the new communication assembly in the DC Connection Unit.

  • Page 14: Replacement Of Bfs Assembly

    ☐ 2-pole voltage detector that does not have its own voltage source Procedure: 1. Disconnect the inverter from voltage sources (at www.SMA-Solar.com). 2. Make a note of the position of the DC field plugs. 3. Unlock the DC field plugs and remove them.
  • Page 15 SMA Solar Technology AG 4 Replacing Assemblies in the DC Connection Unit • On the right-hand side of the DC switch, each pair of contacts DC+ against each contact DC- (red, blue and white conductor against 1 black conductor; gray, green and lilac conductor against 1 blue conductor) •...

  • Page 16: Installing The Bfs Assembly

    4 Replacing Assemblies in the DC Connection Unit SMA Solar Technology AG 8. Remove all plugs from the used sockets of the communication assembly. 9. Remove the ferrite from the ribbon cable X1. To remove the ferrite, insert a small flat-blade screwdriver into the two central holes on the ferrite and slowly open the ferrite.

  • Page 17: Replacing The Artx-Us Assembly

    11. After five minutes of feed-in operation, check whether the serial number from the inverter type label is displayed on the user interface. If a different serial number is displayed, contact the SMA Service Line. 12. If a communication network is available, integrate the inverter into the local network (see inverter manual).
  • Page 18 4 Replacing Assemblies in the DC Connection Unit SMA Solar Technology AG • On the right-hand side of the DC switch, each contact DC+ and DC- against the grounding conductor (red, blue, white, black, gray, green, lilac and blue conductor against grounding conductor) 6.

  • Page 19: Installing The Artx-Us Assembly

    SMA Solar Technology AG 4 Replacing Assemblies in the DC Connection Unit 9. Remove the assembly lid. 10. Release and remove the ribbon cable connector. 11. Remove bolted connection of the assembly (TX20). If the bolting block and the terminal lug stick together, the contact surfaces must be ground prior to the next connection being made.

  • Page 20: Replacing The Dc Device Plugs

    Both DC device plugs that are connected in the inverter via one Y-cable must always be replaced at the same time. Procedure: 1. Disconnect the inverter from voltage sources (at www.SMA-Solar.com). 2. Make a note of the position of the DC field plugs.

  • Page 21: Installing The Dc Device Plugs

    SMA Solar Technology AG 4 Replacing Assemblies in the DC Connection Unit • On the right-hand side of the DC switch, each contact DC+ and DC- against the grounding conductor (red, blue, white, black, gray, green, lilac and blue conductor against grounding conductor) 6.

  • Page 22: Attaching The Enclosure Lid Before Mounting The Dc-Connection Unit

    3. Position the enclosure lid of the DC-Connection Unit on the DC- Connection Unit and first tighten the upper-left and lower-right screws, and then the remaining screws crosswise (TX 25, torque: 6 Nm (53 in-lb)). 4. Commission the inverter (see inverter manual at www.SMA-Solar.com). STP33-62-US-41-RM-en-10 Replacement Manual...

  • Page 23: Replacing Assemblies In The Ac-Connection Unit

    ☐ The conductors between inverter and AC terminals must be free from damage. The inverter must be replaced if the conductors are damaged. Procedure: 1. Disconnect the inverter from voltage sources (at www.SMA-Solar.com). 2. Remove all screws of the AC terminals (TX30). Replacement Manual...

  • Page 24: Installing The Ac Terminals

    5 Replacing Assemblies in the AC-Connection Unit SMA Solar Technology AG 3. Pull the AC conductors out of the AC terminals. 4. Unlock the AC terminals with a screwdriver (blade width: 3.5 mm) and remove them from the DIN rail. This disengages the left conductors from the AC terminals.
  • Page 25 SMA Solar Technology AG 5 Replacing Assemblies in the AC-Connection Unit 2. Press the AC terminals onto the DIN rail until they snap audibly into place. 3. Tighten the AC terminal screws on the left side (torque: 20 Nm (177.0 in-lb)). 4. Connect the AC conductors to the AC terminals in accordance with the labeling specifications.

  • Page 26: Replacing Assemblies In The Dc Power Unit

    6 Replacing Assemblies in the DC Power Unit SMA Solar Technology AG 6 Replacing Assemblies in the DC Power Unit Scope of Delivery for the DC Power Unit Assemblies Check the scope of delivery for completeness and any externally visible damage. Contact your distributor if the scope of delivery is incomplete or damaged.
  • Page 27 • Remove assemblies that have been disconnected to the front to avoid contact between the assemblies. Procedure: 1. Disconnect the inverter from voltage sources (at www.SMA-Solar.com). 2. Make a note of the position of the DC field plugs. 3. Disconnect the DC field plugs.
  • Page 28 6 Replacing Assemblies in the DC Power Unit SMA Solar Technology AG 8. Unplug the ribbon cable connector. Unlock the plug first. 9. Remove bolted connection DC- (TX20). If the bolting block and the terminal lug stick together, the contact surfaces must be ground prior to the next connection being made.
  • Page 29 SMA Solar Technology AG 6 Replacing Assemblies in the DC Power Unit 11. Remove the four DCEMV assembly mounting plate connecting screws (TX20). Once the screws have been removed, the assembly mounting plate remains held in place by the spacers. 12. Remove the DCEMV assembly from the inverter. When doing so, only hold the assembly by the handling areas and ensure that the fan on the rear side of the DST assembly carrier plate in the inverter is not damaged.

  • Page 30: Installing The Dcemv Assembly

    6 Replacing Assemblies in the DC Power Unit SMA Solar Technology AG 6.2.2 Installing the DCEMV Assembly Figure 2: Handling area of DCEMV assembly Position Designation Touch only the assembly on the marked areas or on the sheet metal located under- neath the assembly.

  • Page 31: Removing The Dst Assembly

    ☐ The pattern of thermal grease must be undamaged and free from impurities (see Section 6.3.1, page 30). Procedure: 1. Disconnect the inverter from voltage sources (at www.SMA-Solar.com). 2. Remove the DCEMV assembly (see Section 6.2.1, page 26). 3. Remove all connections (red, light blue, white, green, black and lilac) from the assembly.
  • Page 32 6 Replacing Assemblies in the DC Power Unit SMA Solar Technology AG 4. Unplug the connections. When doing so, unlock the ribbon cable plug first. 5. Remove the screws from the DST assembly (TX20) at the power connections. If the bolting block and the terminal lug stick together, the contact surfaces must be ground prior to the next connection being made.
  • Page 33 SMA Solar Technology AG 6 Replacing Assemblies in the DC Power Unit 7. Remove the connecting screws of the DST assembly (TX20). The assembly will also remain held in place by the spacers once the screws have been removed. 8. Remove the DST assembly cables from the working area.

  • Page 34: Installing The Dst Assembly

    6 Replacing Assemblies in the DC Power Unit SMA Solar Technology AG 6.3.3 Installing the DST Assembly Figure 3: Handling area of DST assembly Position Designation Area that may be used as holding point. The remaining areas may not be touched. The assembly can be damaged through touching.
  • Page 35 SMA Solar Technology AG 6 Replacing Assemblies in the DC Power Unit 2. Clean the supporting surfaces in the enclosure. To do so, use the cleaning cloths included in the delivery. Cleaning can be made easier using Isopropanol. 3. Carefully remove the assembly upwards out of the packaging. When doing so, only hold the assembly by the handling areas and ensure that the pattern of thermal grease is not damaged or soiled.
  • Page 36 6 Replacing Assemblies in the DC Power Unit SMA Solar Technology AG 7. Tighten the three connecting screws of the DST printed circuit board (TX20, torque: 3.5 Nm (31.0 in-lb)). When doing so, follow the sequence shown. 8. Tighten the screws on the two DC connections (TX20, torque: 6.0 Nm (53.1 in-lb)).

  • Page 37: Mounting The Enclosure Lid Of The Dc-Power Unit

    1. Ensure that all connections for the replaced assembly have been made correctly. 2. Position the enclosure lid on the DC-Connection Unit and first tighten the upper-left and lower-right screws, and then the remaining screws crosswise (TX25, torque: 6 Nm (53 in-lb)). 3. Commission the inverter (see inverter manual at www.SMA-Solar.com). Replacement Manual STP33-62-US-41-RM-en-10...

  • Page 38: Replacing Assemblies In The Ac Power Unit

    ☐ 2-pole voltage detector that does not have its own voltage source Procedure: 1. Disconnect the inverter from voltage sources (at www.SMA-Solar.com). 2. Make a note of the position of the DC field plugs. 3. Disconnect the DC field plugs.
  • Page 39 SMA Solar Technology AG 7 Replacing Assemblies in the AC Power Unit 5. Discharge the outputs of the network bridge at the contact points against the enclosure using a voltage detector without intrinsic voltage source. When doing so, ensure that the residual voltage is less than 5 V.
  • Page 40 7 Replacing Assemblies in the AC Power Unit SMA Solar Technology AG 9. Remove connections (black, green, gray, white, red, lilac and blue) from the assembly. Use a suitable screwdriver to remove the cables from the terminals. 10. Remove the cables from the working area.

  • Page 41: Installing The Acrly Assembly

    SMA Solar Technology AG 7 Replacing Assemblies in the AC Power Unit 7.2.2 Installing the ACRLY Assembly Figure 4: Handling area of ACRLY assembly Position Designation Touch only the assembly on the marked areas or on the sheet metal located under- neath the assembly.

  • Page 42: Replacement Of Ast Assembly

    ☐ The pattern of thermal grease must be undamaged and free from impurities (see Section 6.3.1, page 30). Procedure: 1. Disconnect the inverter from voltage sources (at www.SMA-Solar.com). 2. Remove the ACRLY assembly (see Section 7.2.1, page 38). 3. Unplug the connections. When doing so, unlock the ribbon cable plug first.
  • Page 43 SMA Solar Technology AG 7 Replacing Assemblies in the AC Power Unit 5. Remove the bolted connection from the power connection on the AST assembly (TX20). If the bolting block and the terminal lug stick together, the contact surfaces must be ground prior to the next connection being made.

  • Page 44: Installing The Ast Assembly

    7 Replacing Assemblies in the AC Power Unit SMA Solar Technology AG 7.3.2 Installing the AST Assembly Figure 5: Handling area of AST assembly Position Designation Area that may be used as holding point. The remaining areas may not be touched. The assembly can be damaged through touching.
  • Page 45 SMA Solar Technology AG 7 Replacing Assemblies in the AC Power Unit 2. Clean the supporting surfaces in the enclosure. To do so, use the cleaning cloths included in the delivery. Cleaning can be made easier using Isopropanol. 3. Carefully remove the AST assembly upwards out of the packaging. When doing so, only hold the assembly by the handling areas and ensure that the thermal grease is not damaged or soiled.

  • Page 46: Mounting The Enclosure Lid Of The Ac-Power Unit

    1. Ensure that all connections for the replaced assembly have been made correctly. 2. Position the enclosure lid on the AC-Connection Unit and first tighten the upper-left and lower-right screws, and then the remaining screws crosswise (TX25, torque: 6 Nm (53 in-lb)). 3. Commission the inverter (see inverter manual at www.SMA-Solar.com). STP33-62-US-41-RM-en-10 Replacement Manual...

  • Page 47: Packing And Returning The Defective Assembly / Disposing Of The Defective Assembly

    • Pack the defective assembly for shipping. Use the original packaging for this, or packaging that is suitable for the weight and size of the assembly. • Organize the return shipment to SMA. To do this, contact Service (refer to www.SMA-Solar.com for contact details).

  • Page 48: Contact

    9 Contact SMA Solar Technology AG 9 Contact If you have technical problems with our products, please contact the SMA Service Line. The following data is required in order to provide you with the necessary assistance: • Device type • Serial number •...
  • Page 50 www.SMA-Solar.com...

This manual is also suitable for:

Stp 33-us-41Stp 50-us-41Stp 62-us-41

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