SMA CL-PSU-1-SP Operating and safety instructions

Spare-part set "PSU Assembly" for SUNNYTRIPOWER
60-10 / 60-US-10 / 60-JP-10 and for MLX 60
CL-PSU-1-SP
STP60-PSU-RM-xx-10 | 201119-00.01 | Version 1.0

STP60-PSU-RM-xx-102
ENGLISH Replacement Manual................................................................3
DEUTSCH Austauschanleitung.................................................................32
ESPAÑOL Instrucciones para la sustitución............................................62
FRANÇAIS Instructions de remplacement................................................92
ITALIANO Istruzioni per la sostituzione ............................................... 122
NEDERLANDS Vervangingshandleiding..................................................... 151
PORTUGUÊS Manual de substituição ....................................................... 181
TÜRKÇE Değiştirme kılavuzu ............................................................. 210
日本語 交換説明書........................................................................... 240
Contact...................................................................................270

Legal Provisions
SMA Solar Technology AG
Replacement Manual STP60-PSU-RM-xx-10 3
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. Internal reproduction used solely for the purpose
of product evaluation or other proper use is allowed and does not require prior approval.
SMA Solar Technology AG makes no representations or warranties, express or implied, with
respect to this documentation or any of the equipment and/or software it may describe, including
(with no limitation) any implied warranties of utility, merchantability, or fitness for any particular
purpose. All such representations or warranties are expressly disclaimed. Neither SMA Solar
Technology AG nor its distributors or dealers shall be liable for any indirect, incidental, or
consequential damages under any circumstances.
The exclusion of implied warranties may not apply in all cases under some statutes, and thus the
above exclusion may not apply.
Specifications are subject to change without notice. Every attempt has been made to make this
document complete, accurate and up-to-date. Readers are cautioned, however, that product
improvements and field usage experience may cause SMA Solar Technology AG to make changes
to these specifications without advance notice or per contract provisions. SMA Solar Technology
AG shall not be responsible for any damages, including indirect, incidental or consequential
damages, caused by reliance on the material presented, including, but not limited to, omissions,
typographical errors, arithmetical errors or listing errors in the content material.
Trademarks
All trademarks are recognized, even if not explicitly identified as such. Missing designations do not
mean that a product or brand is not a registered trademark.
SMA Solar Technology AG
Sonnenallee 1
34266 Niestetal
Germany
Phone [phone]
Fax [phone]
www.SMA.de
E-mail: [email protected]
Status: 7/18/2022
Copyright © 2022 SMA Solar Technology AG. All rights reserved.
ENGLISH

1 Information on this Document SMA Solar Technology AG
Replacement ManualSTP60-PSU-RM-xx-104
1 Information on this Document
1.1 Validity
This document is valid for:
• CL-PSU-1-SP (PSU assembly)
1.2 Target Group
The tasks described in this document must only be performed by qualified persons. Qualified
persons must have the following skills:
• Within the SMA factory warranty, participation in an SMA training course is mandatory for
carrying out the activities described in this document. The type of training and the media used
may vary from country to country. The type and method of training can therefore vary from
country to country, but must have been completed before the service is provided.
• Outside the SMA factory warranty, SMA Solar Technology AG recommends participation in
an SMA training course to perform the activities described in this document. This ensures the
quality requirements for proper replacement of assemblies. The type of training and the media
used may vary from country to country.
• Knowledge of how to safely disconnect SMA inverters
• Knowledge of how an inverter works and is operated
• Training in how to deal with the dangers and risks associated with installing, repairing and
using electrical devices and installations
• Training in the installation and commissioning of electrical devices and installations
• Knowledge of all applicable laws, standards and directives
• Knowledge of and compliance with this document and all safety information
1.3 Content and Structure of this Document
This document describes how to replace components.
Illustrations in this document are reduced to the essential information and may deviate from the real
product.
1.4 Levels of warning messages
The following levels of warning messages may occur when handling the product.
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, could result in death or serious injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
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1 Information on this Document
SMA Solar Technology AG
Replacement Manual STP60-PSU-RM-xx-10 5
NOTICE
Indicates a situation which, if not avoided, can result in property damage.
1.5 Symbols in the Document
Icon Explanation
Information that is important for a specific topic or goal, but is not safety-rele-
vant
☐
Indicates a requirement for meeting a specific goal
☑
Desired result
✖
A problem that might occur.
Example
1.6 Typographical Elements in the Document
Typographical ele-
ment
Use Example
bold • Messages
• Terminals
• Elements on a user interface
• Elements to be selected
• Elements to be entered
• Connect the insulated
conductors to the terminals
X703:1 to X703:6.
• Enter 10 in the field
Minutes.
>• Connects several elements to be
selected
• Go to Settings > Date.
[Button]
[Key]
• Button or key to be clicked on or
pressed down
• Select [Enter].
# • Placeholder for variable
components (e.g., parameter
names)
• Parameter WCtlHz.Hz#
1.7 Designations in the Document
Complete designation Designation in this document
Sunny Tripower Inverter
PSU Assembly PSU assembly, assembly, product
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2 Safety SMA Solar Technology AG
Replacement ManualSTP60-PSU-RM-xx-106
2 Safety
2.1 Intended Use
The product must only be installed in the following SMA inverters:
Spare-part set Inverter
CL-PSU-1-SP STP 60-10
STP 60-JP-10 (excluding serial numbers starting
with 139F5040 - 139F5049)
STP 60-US-10
MLX 60
Use SMA products only in accordance with the information provided in the enclosed
documentation and with the locally applicable laws, regulations, standards and directives. Any
other application may cause personal injury or property damage.
Any use of the product other than that described in the Intended Use section does not qualify as
appropriate.
The enclosed documentation is an integral part of this product. Keep the documentation in a
convenient, dry place for future reference and observe all instructions contained therein.
This document does not replace any regional, state, provincial, federal or national laws, regulations
or standards that apply to the installation, electrical safety and use of the product. SMA Solar
Technology AG assumes no responsibility for the compliance or non-compliance with such laws or
codes in connection with the installation of the product.
If the replacement and all activities stated in this document are carried out by persons who are not
qualified within the meaning of this documentation, this will void the guarantee and warranty claims
and in most cases terminate the operating permit. SMA Solar Technology AG shall not be held
liable for any damage caused directly or indirectly due to such changes by unauthorized persons.
2.2 IMPORTANT SAFETY INSTRUCTIONS
Keep the manual for future reference.
This section contains safety information that must be observed at all times when working.
The product has been designed and tested in accordance with international safety requirements. As
with all electrical or electronical devices, there are residual risks despite careful construction. 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.
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2 Safety
SMA Solar Technology AG
Replacement Manual STP60-PSU-RM-xx-10 7
DANGER
Danger to life due to electric shock when live components or cables of the
inverter are touched
High voltages are present in the conductive components or cables of the inverter. Touching live
parts and cables of the inverter results in death or lethal injuries due to electric shock.
• Disconnect the inverter from voltage sources and make sure it cannot be reconnected
before working on the device.
• After disconnection, wait 60 minutes until the capacitors have discharged.
• Wear suitable personal protective equipment for all work on the product.
• Do not touch non-insulated parts or cables.
DANGER
Danger to life due to electric shock when live components or DC cables are
touched
When exposed to light, the PV modules generate high DC voltage which is present in the DC
cables. Touching live DC cables results in death or lethal injuries due to electric shock.
• Do not touch non-insulated parts or cables.
• Disconnect the inverter from voltage sources and make sure it cannot be reconnected
before working on the device.
• Wear suitable personal protective equipment for all work on the product.
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.
• Disconnect the inverter from voltage sources and make sure it cannot be reconnected
before working on the device.
• Only touch the cables of the PV modules on their insulation.
• Do not touch any parts of the substructure or frame of the PV array.
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2 Safety SMA Solar Technology AG
Replacement ManualSTP60-PSU-RM-xx-108
WARNING
Danger to life due to fire or explosion
In rare cases, an explosive gas mixture can be generated inside the inverter under fault
conditions. In this state, switching operations can cause a fire inside the inverter or explosion.
Death or lethal injuries due to hot or flying debris can result.
• In the event of a fault, do not perform any direct actions on the inverter.
• Ensure that unauthorized persons have no access to the inverter.
• Disconnect the PV array from the inverter via an external disconnection device. If there is no
disconnecting device present, wait until no more DC power is applied to the inverter.
• Disconnect the AC circuit breaker, or keep it disconnected in case it has already tripped,
and secure it against reconnection.
• Only perform work on the inverter (e.g., troubleshooting, repair work) when wearing
personal protective equipment for handling of hazardous substances (e.g., safety gloves,
eye and face protection, respiratory protection).
WARNING
Risk of injury due to toxic substances, gases and dusts.
In rare cases, damages to electronic components can result in the formation of toxic substances,
gases or dusts inside the inverter. Touching toxic substances and inhaling toxic gases and dusts
can cause skin irritation, burns or poisoning, trouble breathing and nausea.
• Only perform work on the inverter (e.g., troubleshooting, repair work) when wearing
personal protective equipment for handling of hazardous substances (e.g., safety gloves,
eye and face protection, respiratory protection).
• Ensure that unauthorized persons have no access to the inverter.
WARNING
Danger to life due to fire when failing to observe torque specifications on live
bolted connections
Failure to follow the specified torques reduces the ampacity of live bolted connections and the
contact resistances increase. This can cause components to overheat and catch fire. Death or
lethal injuries can result.
• Ensure that live bolted connections are always tightened with the exact torque specified in
this document.
• Only use suitable tools when working on the device.
• Avoid repeated tightening of live bolted connections as this may result in inadmissibly high
torques.
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2 Safety
SMA Solar Technology AG
Replacement Manual STP60-PSU-RM-xx-10 9
WARNING
Danger to life due to electric shock from destruction of the measuring device
due to overvoltage
Overvoltage can damage a measuring device and result in voltage being present in the
enclosure of the measuring device. Touching the live enclosure of the measuring device results in
death or lethal injuries due to electric shock.
• Only use measuring devices with a measurement ranges designed for the maximum AC and
DC voltage of the inverter.
CAUTION
Risk of burns due to hot enclosure parts
Some parts of the enclosure can get hot during operation.
• Do not touch any parts other than the lower enclosure lid of the inverter during operation.
NOTICE
Damage to the enclosure seal in subfreezing conditions
If you open the inverter when temperatures are below freezing, the enclosure seals can be
damaged. This can lead to moisture entering the inverter.
• Only open the inverter if the ambient temperature is not below -5°C.
• If a layer of ice has formed on the enclosure seal when temperatures are below freezing,
remove it prior to opening the inverter (e.g. by melting the ice with warm air).
NOTICE
Damage to the inverter due to sand, dust and moisture
Sand, dust and moisture penetration can damage the inverter, thus impairing its functionality.
• Only open the inverter if the humidity is within the thresholds and the environment is free of
sand and dust.
• Do not open the inverter during a dust storm or precipitation.
• Close the inverter in case of interruption of work or after finishing work.
NOTICE
Damage to the inverter due to electrostatic discharge
Touching electronic components can cause damage to or destroy the inverter through
electrostatic discharge.
• Ground yourself before touching any component.
Grounding conductor test prior to recommissioning
Prior to recommissioning SMA inverters after the installation of SMA components or power
assemblies which cannot be replaced intuitively, ensure that the grounding conductor in the
inverter is correctly connected. The function of the grounding conductor must be ensured and
all locally applicable laws, standards and directives must be observed.
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2 Safety SMA Solar Technology AG
Replacement ManualSTP60-PSU-RM-xx-1010
Observe superordinate standards
The repair work on devices and the consideration and application of other standards which
correspond to a superordinate standard is the responsibility of the qualified person performing
the work. 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.
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3 Component Overview
SMA Solar Technology AG
Replacement Manual STP60-PSU-RM-xx-10 11
3 Component Overview
B
A
DF
E
G
C
Position Designation
A AC EMC assembly
B AC-RLY assembly
C Busbar L1, L2 and L3
C AC terminals
E Surge arrester
F DC terminals
G PSU Assembly
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4 Scope of Delivery SMA Solar Technology AG
Replacement ManualSTP60-PSU-RM-xx-1012
4 Scope of Delivery
Check the scope of delivery for completeness and any externally visible damage. Contact the
Service if the delivery is incomplete or damaged.
Designation Quantity
PSU Assembly 1
PCB bracket 5
Replacement Manual 1
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5 Disconnecting the Inverter from Voltage Sources
SMA Solar Technology AG
Replacement Manual STP60-PSU-RM-xx-10 13
5 Disconnecting the Inverter from Voltage Sources
5.1 With one-piece enclosure lid
Prior to performing any work on the inverter, always disconnect it from all voltage sources as
described in this section. Always adhere to the prescribed sequence.
Additionally required equipment:
☐ 2-pole voltage detector that does not have its own voltage source
Procedure:
1. Recommendation: Backup the event and log files using the inverter manager before the
replacement. This will prevent data loss.
2. Disconnect the AC miniature circuit breaker from all 3 line conductors and secure against
reconnection.
3. Set the DC load-break switch to position O and
secure against reconnection.
4. Disconnect the DC power supply in the distribution board (DC-Combiner).
5. Use a current clamp to ensure that no current is present in the DC cables.
Information: Depending on the model, several positive and negative pole lines are connected
to the inverter. Always ensure that there is no current on all DC lines.
6. WARNING
Danger to life due to high voltages
The capacitors in the inverter take 60 minutes to discharge.
• Wait 60 minutes before opening the enclosure lid.
7. Loosen the 2 fastenings screws on the clamping
frame above the display (TX20) and remove the
clamping frame.
2
1
2x2x2x
8. Remove the display from the display opening.
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5 Disconnecting the Inverter from Voltage Sources SMA Solar Technology AG
Replacement ManualSTP60-PSU-RM-xx-1014
9. Remove the display cable from the display. To do
this, remove the 2 screws from the cable holder
(TX20), remove the two screws from the plug (cross-
head screwdriver) and pull off the plug.
10. Remove the M12x35 screw with the sealing washer
(TX55 or AF 8) and take off the enclosure lid.
1
2
11. Remove the 8 screws of the intermediate frame and
take off the intermediate frame (TX25).
1
2
8x8x8x
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5 Disconnecting the Inverter from Voltage Sources
SMA Solar Technology AG
Replacement Manual STP60-PSU-RM-xx-10 15
12. NOTICE
Damage to the inverter due to electrostatic discharge
The internal components of the inverter can be irreparably damaged by electrostatic
discharge.
• Ground yourself before touching any component.
13. Use an appropriate measuring device to ensure that
no voltage is present at the AC terminal block
between L1 and PE, L2 and PE, L3 and PE, L1 and
L2, L2 and L3 and L1 and L3. Insert the test probe
into each round opening of the terminal.
L1 L2 L3
PE
14. Loosen the screws (TX30 x 50) at the AC terminals L1, L2, L3 and pull out the insulated
conductors. Insulate the cable ends properly to avoid injuries. Ensure that the grounding
conductor is connected.
15. Ensure that no voltage is present at the DC inputs of the inverter using a suitable measuring
device. Insert the test probe into each round opening of the terminal.
16. Loosen the screws (TX 30 x 50) at the DC terminals and pull out the insulated conductors.
Insulate the cable properly to avoid injuries.
5.2 With two-piece enclosure lid
Prior to performing any work on the inverter, always disconnect it from all voltage sources as
described in this section. Always adhere to the prescribed sequence.
Additionally required equipment:
☐ 2-pole voltage detector that does not have its own voltage source
Procedure:
1. Recommendation: Backup the event and log files using the inverter manager before the
replacement. This will prevent data loss.
2. WARNING
Danger to life due to fire and explosion
In rare cases, an explosive gas mixture can be generated inside the inverter under fault
conditions. In this state, switching operations can cause a fire inside the inverter or
explosion. Death or lethal injuries due to hot or flying debris can result.
• Carry out the following steps in the given order.
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5 Disconnecting the Inverter from Voltage Sources SMA Solar Technology AG
Replacement ManualSTP60-PSU-RM-xx-1016
3. Disconnect the AC miniature circuit breaker from all 3 line conductors and secure against
reconnection.
4. If a distribution board (DC combiner) with integrated load-break switch is installed, disconnect
the DC power supply via the DC load-break switch in the distribution board.
5. If a distribution board without a load-break switch (fuse only) is installed, disconnect the DC
power supply as follows: Wait until sunset, only then pull the DC fuses. The system must not be
under load.
6. Use a current clamp to ensure that no current is present in the DC cables.
Information: Depending on the model, several positive and negative pole lines are connected
to the inverter. Always ensure that there is no current on all DC lines.
7. WARNING
Danger to life due to high voltages
The capacitors in the inverter take 60 minutes to discharge.
• Wait 60 minutes before opening the enclosure lid.
8. Set the DC load-break switch to position O and
secure against reconnection.
9. Loosen the 3 screws at the bottom of the service lid
(TX30) and fold the service lid upwards by 180°.
The service lid is hold in position by magnets.
F1 F2 F3 F4
Home Back
OK
F1 F2 F3 F4
Home Back
OK
1
2
10. NOTICE
Damage to the inverter due to electrostatic discharge
The internal components of the inverter can be irreparably damaged by electrostatic
discharge.
• Ground yourself before touching any component.
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5 Disconnecting the Inverter from Voltage Sources
SMA Solar Technology AG
Replacement Manual STP60-PSU-RM-xx-10 17
11. Use an appropriate measuring device to ensure that
no voltage is present at the AC terminal block
between L1 and PE, L2 and PE, L3 and PE, L1 and
L2, L2 and L3 and L1 and L3. Insert the test probe
into each round opening of the terminal.
L1 L2 L3
PE
12. Loosen the screws (TX30 x 50) at the AC terminals L1, L2, L3 and pull out the insulated
conductors. Insulate the cable ends properly to avoid injuries. Ensure that the grounding
conductor is connected.
13. Ensure that no voltage is present at the DC inputs of
the inverter using a suitable measuring device. Insert
the test probe into each round opening of the
terminal.
DC
14. Loosen the screws (TX 30 x 50) at the DC terminals and pull out the insulated conductors.
Insulate the cable properly to avoid injuries.
15. Remove display cable on display. Loosen the 2
screws (TX20) on the cable holder and remove the
cable holder from the service lid. Using a Phillips
screwdriver, loosen the 2 screws at the plug and
remove the plug.
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5 Disconnecting the Inverter from Voltage Sources SMA Solar Technology AG
Replacement ManualSTP60-PSU-RM-xx-1018
16. Loosen the remaining 8 screws (TX30) of the
enclosure lid. Remove the enclosure lid.
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6 Removing the PSU Assembly
SMA Solar Technology AG
Replacement Manual STP60-PSU-RM-xx-10 19
6 Removing the PSU Assembly
1. Disconnect the inverter from all voltage sources (see Section5, page13).
2. Loosen the 2 screws (TX20) of the air flow guide
and remove them together with the air flow guide.
3. Only if the AC-RLY assembly shown is to be
removed and replaced with a new AC-RLY assembly
from the CL-REL-KIT-1-SP spare parts kit, discard the
airflow guide and 2 screws. In this case, the airflow
guide is no longer needed.
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6 Removing the PSU Assembly SMA Solar Technology AG
Replacement ManualSTP60-PSU-RM-xx-1020
4. Loosen the 2 screws (TX20) on the fan and pull the
fan out of the bracket.
5. Disconnect the fan cable from the marked cable
holder.
6. Mark each cable with the position of the terminal used. Use marking tape and a waterproof
marker.
7. Unlock the plugs of all cables and carefully pull
them off.
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