System Monitoring
PT100U-NR
Installation Guide
PT100UNR-IEN083510 | 98-0016810 | Version 1.0
EN
SMA Solar Technology AG Table of Contents
Table of Contents
1 Notes on this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Appropriate Usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Identifying the Ambient Temperature Sensor . . . . . . . . . . . . . . . 7
4 Installation and Electrical Connection. . . . . . . . . . . . . . . . . 8
4.1 Cabling Recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2 Selecting Where to Install. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3 Installing the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.4 Connecting the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.5 Connecting the Sensor to the Sunny SensorBox . . . . . . . . . . . . 11
4.6 Connecting the Sensor to the Sunny Boy Control Plus . . . . . . . 13
4.7 Connecting the Sensor to the Sunny Central . . . . . . . . . . . . . . 14
5 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1 Configuring the Sensor with the Sunny Boy Control Plus . . . . . 15
5.2 Configuring the Sensor with the Sunny Central Control . . . . . . 15
6 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1 Uninstalling the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.2 Disposing of the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Installation Guide PT100UNR-IEN083510 3
Table of Contents SMA Solar Technology AG
8 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4 PT100UNR-IEN083510 Installation Guide
SMA Solar Technology AG Notes on this Manual
1 Notes on this Manual
This manual describes how to install and commission the temperature sensor. Store this manual where
it will be accessible at all times.
1.1 Validity
This manual is valid for the PT100U-NR upgrade kit.
1.2 Target Group
This manual is for qualified personnel.
1.3 Symbols Used
The following types of safety instructions and general information appear in this document as
described below.
DANGER!
DANGER indicates a safety instruction which, if not followed, w ill result in certain death or
serious injury.
WARNING!
WARNING indicates a safety instruction which, if not followed, could result in death or
serious injury.
CAUTION!
CAUTION indicates a safety instruction which, if not followed, could result in minor or
moderate injury.
ATTENTION!
ATTENTION indicates a safety instruction which, if not followed, could result in damage to
property.
Information
'Information' provides valuable tips for the optimal operation of your product.
Installation Guide PT100UNR-IEN083510 5
Safety SMA Solar Technology AG
2 Safety
2.1 Appropriate Usage
The PT100U ambient temperature sensor consists of a PT100 measurement resistor which is installed
in a lP65 plastic enclosure. The PT100U temperature sensor enables measurements in either a 2- or
4-wire system as desired. The measuring range of the ambient temperature sensor is between -30 °C
and +80 °C. To process the ambient data, the sensor must be connected to the Sunny Boy Control
Plus or the Sunny Central Control.
The sensor is only suitable for use with original SMA accessories or with accessories recommended
by SMA Solar Technology AG.
Appropriate usage also includes observing all further documentation relating to this device and its
components.
2.2 Safety Instructions
ATTENTION!
Damage to the sensors as a result of incorrect connection to the Sunny Boy
Control Plus or Sunny Central Control.
The Sunny Boy Control Plus installation guide and the wiring diagram provided must be
used for establishing the electrical connections and connectors.
ATTENTION!
Destruction of the PV system by a lightning strike.
All devices installed on a rooftop must be integrated into the existing lightning protection
of the PV system.
Overvoltage protector
Protect your PV system components against overvoltage from outside by connecting the
sensors to an overvoltage protector. For using the sensors with the Sunny Central, the
corresponding overvoltage protectors can be ordered as an option from Sunny Central.
6 PT100UNR-IEN083510 Installation Guide
SMA Solar Technology AG Unpacking
3 Unpacking
3.1 Packing List
PT100U-NR
A 1 PT100U ambient temperature sensor
B2 Screws
C 2 Wall anchor
3.2 Identifying the Ambient Temperature Sensor
You can identify the sensor using the type plate. The type plate is located on the inside of the lid.
Installation Guide PT100UNR-IEN083510 7
Installation and Electrical Connection SMA Solar Technology AG
4 Installation and Electrical Connection
The PT100U ambient temperature sensor can be connected to the Sunny Boy Control Plus or the
Sunny Central Control via a 2- or 4-wire system as desired. The connection cable is not included and
is routed into the enclosure interior via a cable gland.
2-wire system
When connecting the temperature sensor in a
2-wire system, the cable resist ance is inc luded in
the measurement. Depending on the cable
length, this can lead to inaccuracies when
measuring.
The 2-wire system should therefore only be used with short cable lengths (maximum 3m)
or where the necessary degree of measuring accuracy is not as high. In order to improve
the measuring accuracy, the use of a 4-wire system is recommended.
4-wire system
To offset measuring errors that occur due to
cable resistance, connect the temperature
sensor via a 4-wire system. This type of
conne ction e nsures the current feed and voltage
measurement are performed by separate pair cables. The length of the cable must not
exceed 30m.
4.1 Cabling Recommendations
The cable length and quality will affect the signal quality. To achieve a good quality signal, observe
the following cabling instructions:
Outdoors
For outdoors, use a cable with the following basic properties.
• Cross-section: min. 4 x 0.25mm², min. 4 x AWG 24
• External cable diameter: min. 4.5mm, max. 7mm
•UV-resistant
We recommend the following cable types:
• Lapp cable: Unitronic S-LifY11Y 4 x 0.34mm², order no.: 7038 861
• UL-listed Lapp cable: UNITRONIC S-LifY11Y 4 x 0.34mm², order no.: 7038 865
8 PT100UNR-IEN083510 Installation Guide
SMA Solar Technology AG Installation and Electrical Connection
Indoors
If you protect the cable against UV radiation for use outdoors by means of a suitable cable channel,
you can also use a non-UV-resistant (indoor) cable with the basic properties mentioned above.
We recommend the following cable types:
• Lapp cable: Unitronic LiYY 4 x 0.5mm², order no.: 0028 504
• UL-listed Lapp cable: UNITRONIC LiYY UL/CSA 4 x AWG22/7, order no.: 0022 604
• Helukabel: TRONIC LiYY 4 x 0.5mm², order no.: 18087
4.2 Selecting Where to Install
• The ambient temperature sensor must be installed
with the cable gland pointing downwards in order to
pr eve nt w ate r fr om a ccu mul ati ng o n th e ca ble gla nd.
• Protect the ambient temperature sensor from severe
contamination and spray.
• See image for the recommended ambient
temperature sensor alignment.
• Select an installation site which is in shade throughout
the entire day.
• Make sure that heat cannot accumulate at the
installation site.
• Take into account the maximum cable length of 30m
(4-wire system).
Installation Guide PT100UNR-IEN083510 9
Installation and Electrical Connection SMA Solar Technology AG
4.3 Installing the Sensor
1. Unscrew the four screws on the sensor enclosure and remove the lid.
2. Determine and mark the installation site taking into account the installation space.
3. Fasten the sensor enclosure using the screws provided.
☑ The sensor is now installed.
4.4 Connecting the Sensor
1. Unscrew the screws on the sensor enclosure and
remove the lid.
2. Unscrew the sensor cable gland.
3. Remove the small interior protection plates. Make
sure that the interior seal does not fall out.
4. Screw the cable gland halfway onto the enclosure.
5. Thread the cable through the sensor cable gland.
6. Connect the wires to the screw terminals in a 2 or
4-wire system - see image on the right Use a 4-wire
system to connect the Sunny SensorBox.
7. Write down the color of the wires:
I+__________________________
V+__________________________
V-__________________________
I-__________________________
8. Screw the sensor cable gland tightly into the sensor enclosure (torque: 0.8Nm).
2-wire system 4-wire system
I+
I+
V+
I-
V-
V-
V+
I-
10 PT100UNR-IEN083510 Installation Guide
SMA Solar Technology AG Installation and Electrical Connection
9. Connect the plug from the sensor lid with the screw
terminals - see image on the right. The polarity of the
cables can be chosen as desired.
10 . Fas ten the s ens or l id t o the enc los ure usi ng t he screw s
provided.
☑ The sensor is now connected.
4.5 Connecting the Sensor to the Sunny SensorBox
The sensor is connected at the "F6 TmpAmp" connection in the Sunny SensorBox. Proceed as follows:
ATTENTION!
Damage to the Sunny SensorBox due to liquids entering in.
• When working outdoors, make sure that no liquids (e.g. rain or snow) enter the open
Sunny SensorBox.
• When inserting and removing the cable
through the cable gland, make sure that
the grommet fits correctly into the cable
gland.
ATTENTION!
Damage to the Sunny SensorBox due to porous rubber seals
The rubber seal in the Sunny SensorBox lid becomes porous over time and will no longer
provide a tight seal if the Sunny SensorBox is opened. If you open the Sunny SensorBox
after an operating lifetime of more than 5 years, e.g. for upgrading the device, the rubber
seal in the Sunny SensorBox lid must be replaced with a new one. In this instance please
order a replacement seal before starting maintenance works.
1. Open the lateral flaps of the Sunny SensorBox using the recesses.
2. Loosen the screws in the corners of the Sunny SensorBox and open the enclosure lid towards
the left. The lid is connected to the lower shell by hooks.
Installation Guide PT100UNR-IEN083510 11
Installation and Electrical Connection SMA Solar Technology AG
3. Unscrew the cable gland sleeve nuts on the bottom
ce nter of t he S unn y Sensor Box and re mov e the fil ler
plugs.
4. Thread the sensor cable through the sleeve nuts
and tighten the cable gland of the Sunny
SensorBox.
5. Remove the resistor and the bridge at the
"F6 TmpAmb" connection in the Sunny SensorBox.
6. Connect the sensor to the "F6 TmpAmb" connection
in the Sunny SensorBox. Note the indicated wire
colors (see page 10).
7. Ensure that the cable gland grommet is correctly in
place.
8. Screw the sleeve nuts tightly onto the cable gland
to fix the cable (torque: 0.8Nm).
9. Lay the cable using suitable fastening material.
10. Install and connect further sensors.
11. Place the Sunny SensorBox enclosure lid on the
lower enclosure shell.
12. Initially turn the screws of the enclosure lid a little to
the left, until the screws fall into the first turn of the
thread.
13. Turn the screws tightly (torque: 1 Nm) into the lower enclosure shell.
☑ The ambient temperature sensor is now connected.
Sensor Configuration
Refer to the Sunny SensorBox installation guide for the sensor configuration.
12 PT100UNR-IEN083510 Installation Guide
SMA Solar Technology AG Installation and Electrical Connection
4.6 Connecting the Sensor to the Sunny Boy Control Plus
The sensor is connected to the analog input port (ANALOG IN) of the Sunny Boy Control Plus.
4-wire system
The AIN-7 and AIN-8 analog input ports have been configured for a 4-wire system with
PT100 resistance. The supply currents required for this are provided by the Sunny Boy Control Plus.
I+ at the sensor PIN 11 (PT100-I1+)
V+ at the sensor PIN 9 (AIN-7+)
V- at the sensor PIN 20 (AIN-7-)
I- at the sensor PIN 22 (PT100-I1-)
I+ at the sensor PIN 12 (PT100-I2+)
V+ at the sensor PIN 10 (AIN-8+)
V- at the sensor PIN 21 (AIN-8-)
I- at the sensor PIN 23 (PT100-I2-)
Connecting the sensors using a connection terminal block
To connect to the Sunny Boy Control Plus, use the 25-pin connection terminal block
(see section 8 "Accessories" (page17)).
Connecting the PT100 temperature sensor to "AIN-7" in a 4-wire system
Connecting the PT100 temperature sensor to "AIN-8" in a 4-wire system
2-wire system
Connecting the PT100 temperature sensor to "AIN-7" in a 2-wire system
V+ at the sensor Bridge PIN 9 (AIN-7+) with PIN 11 (PT100-I1+)
V- at the sensor Bridge PIN 20 (AIN-7-) and PIN 22 (PT100-I1-)
Connecting the PT100 temperature sensor to "AIN-8" in a 2-wire system
V+ at the sensor Bridge PIN 10 ( AIN -8+ ) wit h PIN 12 (PT100-I2+)
V- at the sensor Bridge PIN 21 (AIN-8-) with PIN 23 (PT100-I2-)
Installation Guide PT100UNR-IEN083510 13
Installation and Electrical Connection SMA Solar Technology AG
4.7 Connecting the Sensor to the Sunny Central
The sensor is connected to the Sunny Central using the =Z5-X5 terminal strips.
Realizing the electrical connection
The wiring diagram provided must be used for establishing the electrical connections and
connectors.
4-wire system
Connecting the PT100 temperature sensor to "=Z5-X5" in a 4-wire system
I+ at the sensor Terminal 1
V+ at the sensor Terminal 2
I- at the sensor Terminal 3
V- at the sensor Terminal 4
2-wire system
Connecting the PT100 temperature sensor to "=Z5-X5" in a 2-wire system
V+ at the sensor Bridge terminal 1 with terminal 2
V- at the sensor Bridge terminal 3 with terminal 4
or
Connecting the PT100 temperature sensor to "=Z5-X5" in a 2-wire system
V+ at the sensor Terminal 5
V- at the sensor Terminal 6
or
Connecting the PT100 temperature sensor to "=Z5-X5" in a 2-wire system
V+ at the sensor Terminal 7
V- at the sensor Terminal 8
14 PT100UNR-IEN083510 Installation Guide
SMA Solar Technology AG Configuration
5 Configuration
Configuring the Sunny Boy Control Plus or Sunny Central Control
Refer to the Sunny Boy Control Plus user manual for the configuration. In the case of the
Sunny Central Control, the configuration is described in the Sunny Central user manual.
5.1 Configuring the Sensor with the Sunny Boy Control Plus
To suitably configure the Sunny Boy Control Plus with the connected ambient temperature sensor,
proceed as follows:
1. Log in to the Sunny Boy Control Plus as the installer.
2. Select the "Settings > Plus I/O > Analog In" menu option in the Sunny Boy Control Plus.
3. Select the input port that is to be configured:
AIN-7 (PT100)
or
AIN-8 (PT100)
4. Under "Function", select the desired temperature unit (e.g. °C).
5. Under "Name", enter the desired sensor name (e.g. Temp).
☑ The sensor is now configured.
5.2 Configuring the Sensor with the Sunny Central Control
To suitably configure the Sunny Central Control with the connected ambient temperature sensor,
proceed as follows:
1. Log in to the Sunny Central Control as the installer.
2. Select the menu option "Settings > Connections > Analog In" in the Sunny Central Control.
3. Select the input port that is to be configured.
4. Under "Function", select the desired temperature unit (e.g. °C).
5. Under "Name", enter the desired sensor name (e.g. Temp).
☑ The sensor is now configured. The gain and offset do not require calculating.
Installation Guide PT100UNR-IEN083510 15
Decommissioning SMA Solar Technology AG
6 Decommissioning
6.1 Uninstalling the Sensor
1. Reset the sensor configuration in the communication device.
2. Detach the sensor cable from the communication device.
3. Unscrew the screws on the sensor enclosure and remove the lid.
4. Remove the enclosure from the wall.
☑ The sensor is now uninstalled.
6.2 Disposing of the Sensor
At the end of its service life, dispose of the sensor in accordance with the applicable disposal
regulations for electronic waste at the installation site at that time. Alternatively, send it back to SMA
Solar Technology with shipping paid by the sender, and labeled "ZUR ENTSORGUNG"
("for disposal")
16 PT100UNR-IEN083510 Installation Guide
SMA Solar Technology AG Technical Data
7 Technical Data
General data
Dimensions (W/H/D) in mm 100/52/67
Measurement resistor PT100
Installation outdoors
Protection rating IP65
Connection cable
Connection cable max 30m. (not included in delivery)
Measured values
Tolerance maximum ± 0.7°C (class B)
Measuring range -30 °C to +80 °C
8 Accessories
Description SMA order number
Analog IN connection
terminal block
25-pin, D-Sub plug for Sunny Boy Control Plus
(incl. 1:1 cable, 25-pin D-Sub, bushing/plug,
length 0.5m
SBCOP-ANA-KIT
Installation Guide PT100UNR-IEN083510 17
Contact SMA Solar Technology AG
9 Contact
If you have technical problems concerning our products, contact our Service Line. We need the
following information to provide you with the necessary assistance:
• Sensor model
•Communication device
• Measured values
SMA Solar Technology AG
Sonnenallee 1
34266 Niestetal, Germany
www.SMA.de
Serviceline
Inverters: +49 561 9522 1499
Communication: +49 561 9522 2499
Fax: +49 561 9522 4699
E-Mail: serviceline@SMA.de
18 PT100UNR-IEN083510 Installation Guide
Sunny Central
SMA Solar Technology AG
Sonnenallee 1
34266 Niestetal, Germany
Tel. +49 561 9522 299
Fax +49 561 9522 3299
SunnyCentral.Service@SMA.de
www.SMA.de
SMA Solar Technology AG Legal Restrictions
The information contained in this document is the property of SMA Solar Technology AG. Publishing its content, either partially or
in full, requires the written permission of SMA Solar Technology AG. Any internal company copying of the document for the
purposes of evaluating the product or its correct implementation is allowed and does not require permission.
Exclusion of liability
The general terms and conditions of delivery of SMA Solar Technology AG shall apply.
The content of these documents is continually checked and amended, where necessary. However, discrepancies cannot be
excluded. No guarantee is made for the completeness of these documents. The latest version is available online at www.SMA.de
or from the usual sales channels.
Guarantee or liability claims for damages of any kind are excluded if they are caused by one or more of the following:
• Damages during transportation
• Improper or inappropriate use of the product
• Operating the product in an unintended environment
• Operating the product whilst ignoring relevant, statutory safety regulations in the deployment location
• Ignoring safety warnings and instructions contained in all documents relevant to the product
• Operating the product under incorrect safety or protection conditions
• Altering the product or supplied software without authority
• The product malfunctions due to operating attached or neighboring devices beyond statutory limit values
• In case of unforeseen calamity or force majeure
The use of supplied software produced by SMA Solar Technology AG is subject to the following conditions:
• SMA Solar Technology AG rejects any liability for direct or indirect damages arising from the use of software developed by
SMA Solar Technology AG. This also applies to the provision or non-provision of support activities.
• Supplied software not developed by SMA Solar Technology AG is subject to the respective licensing and liability agreements
of the manufacturer.
SMA Factory Warranty
The current guarantee conditions come enclosed with your device. These are also available online at www.SMA.de and can be
downloaded or are available on paper from the usual sales channels if required.
Trademarks
All trademarks are recognized even if these are not marked separately. Missing designations do not mean that a product or brand
is not a registered trademark.
The Bluetooth
Solar Technology is under license.
SMA Solar Technology AG
Sonnenallee 1
34266 Niestetal
Germany
Tel. +49 561 9522-0
Fax +49 561 9522-100
www.SMA.de
E-Mail: info@SMA.de
© 2004 to 2009 SMA Solar Technology AG. All rights reserved
®
wor d mark an d logos are registe red trademar ks owned by Bl uetoo th SI G, Inc . and any use of su ch ma rks by SMA
Installation Guide PT100UNR-IEN083510 19
SMA Solar Technology AG
www.SMA.de
Sonnenallee 1
34266 Niestetal, Germany
Tel.: +49 561 9522 4000
Fax: +49 561 9522 4040
E-Mail: Vertrieb@SMA.de
Freecall: 0800 SUNNYBOY
Freecall: 0800 78669269
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