SMA SUNNY CENTRAL 500CP XT Maintenance Manual
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SMA SUNNY CENTRAL 500CP XT Maintenance Manual

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Maintenance Manual
SUNNY CENTRAL 500CP XT / 630CP XT /
720CP XT / 760CP XT / 800CP XT / 850CP XT /
900CP XT / 1000CP XT
ENGLISH
SCCPXT-E7-WA-en-37 | 98-107200.05 | Version 3.7

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Summary of Contents for SMA SUNNY CENTRAL 500CP XT

  • Page 1 Maintenance Manual SUNNY CENTRAL 500CP XT / 630CP XT / 720CP XT / 760CP XT / 800CP XT / 850CP XT / 900CP XT / 1000CP XT ENGLISH SCCPXT-E7-WA-en-37 | 98-107200.05 | Version 3.7...
  • Page 2 Legal Provisions The information contained in these documents is the property of SMA Solar Technology AG. No part of this document may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, be it electronic, mechanical, photographic, magnetic or otherwise, without the prior written permission of SMA Solar Technology AG.

  • Page 3: Table Of Contents

    Table of Contents SMA Solar Technology AG Table of Contents Information on this Document..................... Validity ................................Target Group ..............................Levels of Warning Messages.......................... Symbols in the Document..........................Typographical Elements in the Document...................... Designations in the Document ........................Additional Information............................. Safety ............................
  • Page 4 Table of Contents SMA Solar Technology AG Reading Off Disturbance Messages ......................30 5.2.1 Reading Off Error Messages via Touch Display.................... 30 5.2.2 Reading Off Disturbance Messages via the User Interface ................31 5.2.3 Displaying the Event Report..........................31 5.2.3.1 Enabling Automatic Read-Out of Events......................
  • Page 5 Table of Contents SMA Solar Technology AG Entering the Password via the Touch Display ....................65 Parameter Overview............................65 7.3.1 Accessing the Parameter Overview ........................ 65 7.3.2 Saving Parameter Changes..........................66 User Interface..............................66 7.4.1 Logging Into the User Interface ........................66 7.4.2...

  • Page 6: Information On This Document

    1 Information on this Document SMA Solar Technology AG 1 Information on this Document Validity This document is valid for the following device types: Device type Production version OCU firmware DSP firmware version version SC 500CP‑10 (Sunny Central 500CP XT) 02.00.01.R 02.00.01.R SC 630CP‑10 (Sunny Central 630CP XT) SC 720CP‑10 (Sunny Central 720CP XT)

  • Page 7: Symbols In The Document

    (e.g., parameter names) Designations in the Document Complete designation Designation in this document Medium-voltage transformer MV transformer Sunny Central Communication Controller SC-COM, communication unit Sunny Central CP XT Sunny Central or inverter Additional Information For more information, please go to www.SMA-Solar.com. Maintenance Manual SCCPXT-E7-WA-en-37...
  • Page 8 1 Information on this Document SMA Solar Technology AG Title and information content Type of information "Requirements for medium-voltage transformers and transformers for internal Technical Information power supply for SUNNY CENTRAL and SUNNY CENTRAL STORAGE" "PUBLIC CYBER SECURITY - Guidelines for a Secure PV System Communication"...

  • Page 9: Safety

    Alterations to the product, e.g. changes or modifications, are only permitted with the express written permission of SMA Solar Technology AG. Unauthorized alterations will void guarantee and warranty claims and in most cases terminate the operating license. SMA Solar Technology AG shall not be held liable for any damage caused by such changes.

  • Page 10: Safety Information

    2 Safety SMA Solar Technology AG Safety Information This section contains safety information that must be observed at all times when working on or with the product. To prevent personal injury and property damage and to ensure long-term operation of the product, read this section carefully and observe all safety information at all times.
  • Page 11 2 Safety SMA Solar Technology AG DANGER Danger to life from electric shock even if the inverter is disconnected on the AC and DC sides The precharge unit of the order option "Q at Night" will carry live voltage even if the AC contactor and the DC switchgear are open.
  • Page 12 2 Safety SMA Solar Technology AG WARNING Danger to life due to blocked escape routes In hazardous situations, blocked escape routes can lead to death or serious injury. Opening the doors of two products located opposite each other can block the escape route. It is imperative that the escape route is freely accessible at all times.

  • Page 13: Cyber Security

    Internet. You can find the current recommendations by SMA Solar Technology AG on the topic of Cyber Security in the Technical Information "PUBLIC CYBER SECURITY - Guidelines for a Secure PV System Communication" at www.SMA- Solar.com.

  • Page 14: Product Overview

    3 Product Overview SMA Solar Technology AG 3 Product Overview Design of the Inverter Figure 1: Design of the Inverter Position Designation Inverter cabinet Interface cabinet Connection area Devices of the Inverter Figure 2: Inverter Components Position Component Description Touch Display Different kinds of inverter data can be viewed on the touch display.

  • Page 15: Operating And Display Elements

    3 Product Overview SMA Solar Technology AG Position Component Description SC-COM The SC-COM is the communication unit of the inverter. The SC-COM estab- lishes the connection between the inverter and the system operator. AC disconnection unit With the AC disconnection unit, the electrical connection between the in- verter and MV transformer can be disconnected manually.

  • Page 16: Ac Disconnection Unit

    3 Product Overview SMA Solar Technology AG 3.3.1.2 AC Disconnection Unit The AC disconnection unit disconnects the inverter from the MV transformer. Figure 4: Switch positions of the AC disconnection unit from ABB Position Designation Explanation Switch position on The AC disconnection unit is closed.

  • Page 17: Touch Display

    3 Product Overview SMA Solar Technology AG 3.3.2 Touch Display 3.3.2.1 Design The touch display is used to display instantaneous values and parameter settings. Tapping the symbols on the touch display activates the corresponding functions. If the touch display has not been touched for five minutes, the display is locked and the logged-in user will be logged out.
  • Page 18 3 Product Overview SMA Solar Technology AG Symbol Designation Explanation DC side Representation of the instantaneous values • PV power in W • Insulation resistance in Ω • PV current in A • PV voltage in V • Diagram of string-current monitoring –...
  • Page 19 3 Product Overview SMA Solar Technology AG Symbol Designation Explanation AC side Representation of the following instantaneous values: • Active power in W • Reactive power in VAr • Power frequency in Hz • AC current in A • AC voltage in V...
  • Page 20 3 Product Overview SMA Solar Technology AG Symbol Designation Explanation Settings • Language selection • Brightness setting • Time setting • Format selection • Password entry Information • OS: version of the operating system • App.: version of the application software •...

  • Page 21: Leds Of The Sc-Com

    3 Product Overview SMA Solar Technology AG 3.3.3 LEDs of the SC-COM 3.3.3.1 LEDs on the Enclosure Figure 7: LEDs on the enclosure LED designation Status Explanation POWER glowing green The SC-COM is supplied with voltage. The SC-COM is not supplied with voltage.

  • Page 22: Leds On The Network Port

    3 Product Overview SMA Solar Technology AG LED designation Status Explanation flashing green The SC-COM is communicating with the devices connected within the system. glowing green Internal communication has taken place in the last five minutes. glowing red An error has occurred in the internal communication.

  • Page 23: Leds On The Optical Fiber Terminals

    3 Product Overview SMA Solar Technology AG 3.3.3.3 LEDs on the Optical Fiber Terminals The SC-COM is also available with pre-wired optical fiber connections. If the optical fibers are connected to the splice box of the inverter, the status of the connection will be indicated by the LEDs of the SC-COM.

  • Page 24: User Interface

    3 Product Overview SMA Solar Technology AG 3.3.4 User Interface 3.3.4.1 Design of the User Interface Via the user interface, you can set the communication of the devices of your PV power plant, configure the inverter parameters and read off error messages and operating data.

  • Page 25: Status Symbols

    3 Product Overview SMA Solar Technology AG 3.3.4.3 Status Symbols Depending on the status of the device communication, the device symbols are displayed in the tree or device view with various status symbols. Symbol Explanation The inverter is ready for operation.

  • Page 26: Disconnecting And Reconnecting

    4 Disconnecting and Reconnecting SMA Solar Technology AG 4 Disconnecting and Reconnecting Safety When Disconnecting and Reconnecting Voltage Sources DANGER Danger to life from electric shock due to live voltage High voltages are present in the live components of the product. Touching live components results in death or serious injury due to electric shock.

  • Page 27: Disconnecting The Ac Side

    4 Disconnecting and Reconnecting SMA Solar Technology AG 4.2.3 Disconnecting the AC Side 1. Switch off the inverter (see Section 4.2.1, page 26). 2. Disconnect the DC side (see Section 4.2.2, page 26). 3. Externally disconnect the AC voltage of the MV transformer. 4. Switch off the AC disconnection unit in the inverter.

  • Page 28: Reconnecting The Inverter

    4 Disconnecting and Reconnecting SMA Solar Technology AG 5. Open the measurement and disconnect terminals. 6. Ensure that no voltage is present. 7. Cover or isolate any adjacent live components. Reconnecting the Inverter 4.3.1 Reconnecting the Supply Voltage at the Inverter 1.

  • Page 29: Reconnecting The Ac Side

    4 Disconnecting and Reconnecting SMA Solar Technology AG 5. If the supply voltage has been disconnected upstream from the circuit breaker, switch the circuit breaker of the supply voltage on. 4.3.2 Reconnecting the AC Side 1. Reconnect the supply voltage and external voltages (see Section 4.3.1, page 28).

  • Page 30: Troubleshooting

    5 Troubleshooting SMA Solar Technology AG 5 Troubleshooting Safety during Troubleshooting DANGER Danger to life from electric shock due to high voltages on the product High voltages can be present on the product under fault conditions. Touching live components results in death or serious injury due to electric shock.

  • Page 31: Reading Off Disturbance Messages Via The User Interface

    5 Troubleshooting SMA Solar Technology AG Procedure: • Select the warning symbol. ☑ The touch display lists the error number, waiting time, error message and the necessary corrective measure to eliminate the disturbance. 5.2.2 Reading Off Disturbance Messages via the User Interface 1.

  • Page 32: Acknowledging Disturbance Messages Via The User Interface

    5 Troubleshooting SMA Solar Technology AG 5.3.2 Acknowledging Disturbance Messages via the User Interface Dealing with disturbances Disturbance messages should only be acknowledged once the underlying causes have been eliminated. If the causes of the disturbance have not been eliminated, the disturbance will still be detected after acknowledgment and the disturbance message will reappear.
  • Page 33 5 Troubleshooting SMA Solar Technology AG • Day change The inverter switches to the operating state "Disturbance" and opens the AC contactor and DC switchgear. The inverter does not feed in. The disturbance is automatically reset when the day changes. Once the disturbance has been reset, it is no longer shown on the touch display.

  • Page 34: Content And Structure Of The Error Tables

    5 Troubleshooting SMA Solar Technology AG 5.4.2 Content and structure of the error tables You will find the following information in the error tables in the following sections: Error no. Explanation Corrective measures 1301 Left-hand rotating magnetic field 30 s ‒...

  • Page 35: Error Numbers 34Xx To 40Xx - Disturbance On The Pv Array

    5 Troubleshooting SMA Solar Technology AG Error no. Explanation Inverter behavior Corrective measures 0404* Frequency change per second too 30 s 30 s ‒ ‒ high for grid operation 0502* Power frequency is too low. Power 30 s 30 s ‒ • Check power frequency.
  • Page 36 5 Troubleshooting SMA Solar Technology AG Error no. Explanation Inverter behavior Corrective measures 3501 The insulation monitoring device ‒ • Check the PV array for ground faults. has measured a too low ground- ing resistance. 3502 The GFDI has tripped.

  • Page 37: Error Numbers 6Xxx To 9Xxx - Disturbance On The Inverter

    5 Troubleshooting SMA Solar Technology AG 5.4.5 Error Numbers 6xxx to 9xxx - Disturbance on the Inverter Error no. Explanation Inverter behavior Corrective measures 6002 Calibration data cannot be ‒ • Contact the SMA Service Line. loaded. 6113 Data block cannot be loaded from ‒...
  • Page 38 5 Troubleshooting SMA Solar Technology AG Error no. Explanation Inverter behavior Corrective measures 6441 Sensor error during measurement 30 s 30 s ‒ • Contact the SMA Service Line. of DC voltage 6443 Unspecified error in digital signal 30 s ‒ • Contact the SMA Service Line.
  • Page 39 5 Troubleshooting SMA Solar Technology AG Error no. Explanation Inverter behavior Corrective measures 6605 The fast stop was tripped due 30 s 1 min ‒ • Contact the SMA Service Line. overtemperature in the switch cabi- net. 7001 Cable break or short circuit at in- ‒...

  • Page 40: Displaying Disturbance Messages For Active Power Limitation

    5 Troubleshooting SMA Solar Technology AG Error no. Explanation Inverter behavior Corrective measures 7714 Maximum number of GFDI switch 30 s 30 s ‒ • Replace the GFDI. cycles reached. 7801 The surge arrester is defective or ‒ • Check the surge arrester.

  • Page 41: Displaying Disturbance Messages For The Reactive Power Setpoint

    5 Troubleshooting SMA Solar Technology AG Display Cause and corrective measures ComFail The mode WCtlCom has been selected and the expected signal with a valid active power limitation has been absent for at least five minutes. Corrective measures: • Ensure that the communication units can be accessed via the Internet.

  • Page 42: Maintenance

    6 Maintenance SMA Solar Technology AG 6 Maintenance Safety during Maintenance DANGER Danger to life from electric shock due to live voltage High voltages are present in the live components of the product. Touching live components results in death or serious injury due to electric shock.

  • Page 43: Maintenance Schedule And Consumables

    Spare parts Only original parts or parts recommended by SMA Solar Technology AG are to be used as spare parts when replacing components. Spare parts can be identified via the reference designation and the circuit diagram. The spare-parts list includes the article numbers of each spare part.

  • Page 44: Repair Schedule And Spare Parts

    Information on Repair Work Spare parts Only original parts or parts recommended by SMA Solar Technology AG are to be used as spare parts when replacing components. Spare parts can be identified via the reference designation and the circuit diagram. The spare-parts list includes the article numbers of each spare part.

  • Page 45: Demand-Based Annual Repairs

    6 Maintenance SMA Solar Technology AG 6.3.2 Demand-Based Annual Repairs Task Interval Replace key switch In case of severe signs of wear Replace surge arrester If tripped Replace labels on the enclosure If illegible, defective or missing Replace GFDI / ABB circuit breaker After 100 trippings due to short circuit after number of switching cycles: 7000...

  • Page 46: Checking The Heating Elements And Hygrostat

    6 Maintenance SMA Solar Technology AG Procedure: 1. Switch the inverter to Stop. 2. Connect the supply voltage (see Section 4.3.1, page 28). ☑ The fans start to run for a few moments. ✖ The fans do not start up? • Please contact (see Section 9, page 68).

  • Page 47: Inverter With Low-Temperature Option: Cleaning The Heating Elements

    6 Maintenance SMA Solar Technology AG 4. Check whether the heating elements are radiating heat after a delay time of five minutes. If the heating elements are not radiating heat, contact us (see Section 9 "Contact", page 68). 5. Reset the hygrostat to the initial value. To do this, press the selector switch back towards the hygrostat. The initial value of the hygrostat is indicated on the hygrostat.

  • Page 48: Inverter With Low-Temperature Option: Checking The Heating Elements

    6 Maintenance SMA Solar Technology AG 6.4.1.4 Inverter with Low-Temperature Option: Checking the Heating Elements Figure 13: Position of the heating elements and the temperature control Position Designation Heating element with low-temperature range option Connection plug of the temperature control...
  • Page 49 ✖ There is no audible switching sound? • Contact SMA Solar Technology AG. 5. Check whether the heating elements are radiating heat after a delay time of 5 minutes. If the heating elements are not radiating heat, contact us (see Section 9 "Contact", page 68).

  • Page 50: Checking The Function Of The Ups

    6 Maintenance SMA Solar Technology AG 6.4.1.5 Checking the Function of the UPS Figure 14: Positon of the UPS Position Designation Uninterruptible power supply (UPS) DANGER Danger to life due to electric shock or electric arc if live components are touched •...

  • Page 51: Maintenance Work In Disconnected State

    6. Measure the time until the communication unit switches off. ☑ The communication unit switches off after 15 seconds at the earliest. ✖ The communication unit switches off earlier? • Contact SMA Solar Technology AG. 6.4.2 Maintenance Work in Disconnected State 6.4.2.1...
  • Page 52 Each time maintenance work is performed, the values of the temperature indicators must be read off and logged. The highest value of the indicators that turned black must be entered in the maintenance report. The interactive protocol "Temperature Indicators Analysis Protocol" can be downloaded at www.SMA-Solar.com. DANGER Danger to life due to electric shock or electric arc if live components are touched •...

  • Page 53: Cleaning The Ventilation Plate

    6 Maintenance SMA Solar Technology AG 3. Read off and log the values of each temperature indicator. 4. Analyze the results and take action if necessary: Number of the in- Value of the indi- Action dicator cator 1 to 9 There is no need for action.
  • Page 54 6 Maintenance SMA Solar Technology AG CAUTION Danger of crushing due to heavy, unwieldy roof The inverter roof is heavy and bulky. If you try to move the roof on your own, you run a risk of having limbs crushed.

  • Page 55: Cleaning The Interior

    6 Maintenance SMA Solar Technology AG • Remove the grounding conductor from the inverter. • Remove the roof and set it down on a suitable surface. • Clean air intake with a vacuum cleaner • Place the roof on the inverter.

  • Page 56: Checking The Seals

    6 Maintenance SMA Solar Technology AG 6.4.2.6 Checking the Seals Figure 17: Section drawing with top view of a door seal (example) Position Designation Seal Side panel Sealing area Hinge Door Frame construction Required maintenance material (not included in the scope of delivery): ☐...

  • Page 57: Checking The Inverter Surface

    6 Maintenance SMA Solar Technology AG DANGER Danger to life due to electric shock or electric arc if live components are touched • Switch off the inverter and wait at least 15 minutes before opening it to allow the capacitors to discharge completely.

  • Page 58: Checking The Fuses/Disconnection Blades

    6 Maintenance SMA Solar Technology AG 2. Check surfaces for damage or corrosion. If the surfaces are damaged or corroded, repair them without delay or within three weeks at the latest. 3. To remove small-area surface damage: • Sand the surface.

  • Page 59: 6.4.2.11 Checking The Labels

    6 Maintenance SMA Solar Technology AG NOTICE Damage to bolted connections through overtightening If the permitted torques are exceeded, bolted connections can be damaged. In this case, fault-free operation of the inverter is no longer ensured. • Only tighten loose bolted connections to the prescribed torque. Torque specifications are indicated in the circuit diagram of the inverter.
  • Page 60 6 Maintenance SMA Solar Technology AG Figure 18: Position of the labels Position Material number Designation 86-029687 Use hearing protection 86-05200 Beware of dangerous voltage 86-79615 Beware of a danger zone 86-10867153 Risk of electrical shock even when the device is disconnected.

  • Page 61: Repair Work

    6 Maintenance SMA Solar Technology AG Position Material number Designation 86-0043553 Risk of lethal electric shock due to active power source 86-003307 5 Safety rules 86-1086701026 The negative pole of the PV generator is grounded in the inverter. 86-1086701027 The positive pole of the PV generator is grounded in the inverter.

  • Page 62: Periodic Actions

    7 Periodic Actions SMA Solar Technology AG 7 Periodic Actions Mounting and Disassembly Work 7.1.1 Disassembling and Mounting the Panels DANGER Danger to life due to electric shock or electric arc if live components are touched • Switch off the inverter and wait at least 15 minutes before opening it to allow the capacitors to discharge completely.

  • Page 63: Disassembling And Mounting The Protective Covers

    7 Periodic Actions SMA Solar Technology AG 7.1.2 Disassembling and Mounting the Protective Covers Figure 19: Position of the protective covers Position Designation Protective cover DANGER Danger to life due to electric shock or electric arc if live components are touched •...

  • Page 64: Disassembling And Mounting The Ventilation Grids

    7 Periodic Actions SMA Solar Technology AG 7.1.3 Disassembling and Mounting the Ventilation Grids Disassembling the ventilation grids 1. Release the screws of the right-hand ventilation grid. (head size:- T40). 2. Pull the lower side of the right-hand ventilation grid forwards to remove it.

  • Page 65: Entering The Password Via The Touch Display

    7 Periodic Actions SMA Solar Technology AG 2. Screw the left-hand ventilation grid on (torque: 20 Nm,-head size T40). 3. Insert the right-hand ventilation grid. 4. Screw the right-hand ventilation grid on (torque: 20 Nm,-head size T40). Entering the Password via the Touch Display Installer access The "Installer"...

  • Page 66: Saving Parameter Changes

    IP address: 192.168.100.2 Subnet mask: 255.255.255.0 Password for the user groups "installer" and "user": sma Identical passwords for the user groups If your "user" password is the same as your "installer" password, you will automatically be logged in as an installer.

  • Page 67: Appendix

    8 Appendix SMA Solar Technology AG 8 Appendix Installation Information 8.1.1 Torques Torques of the power connections: Type of terminal lug Torque Tin-plated aluminum terminal lug on copper bar 37 Nm Tin-plated copper terminal lug on copper bar 60 Nm Tin-plated aluminum or copper terminal lug on aluminum bar 37 Nm...

  • Page 68: 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 • Firmware version •...
  • Page 69 9 Contact SMA Solar Technology AG United Arab SMA Middle East LLC India SMA Solar India Pvt. Ltd. Emirates Abu Dhabi Mumbai +971 2234 6177 +91 22 61713888 SMA Online Service Center: www.SMA-Service.com ไทย Service Partner for String inverter: 대한민국 Enerone Technology Co., Ltd Solar Power Engineering Co., Ltd.
  • Page 70 www.SMA-Solar.com...

This manual is also suitable for:

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