Sferalabs Strato Pi SPMU30X User Manual

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Quick reference manual (9 pages)

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Strato Pi UPS User Guide

July 2021

Revision 027

SPBU30X Strato Pi UPS board

SPMU30X Strato Pi UPS server with Raspberry Pi 3 Model B

SPMU30XP Strato Pi UPS server with Raspberry Pi 3 Model B+

SPMU30X41 Strato Pi UPS server with Raspberry Pi 4 Model B 1GB

SPMU30X42 Strato Pi UPS server with Raspberry Pi 4 Model B 2GB

SPMU30X44 Strato Pi UPS server with Raspberry Pi 4 Model B 4GB

SPMU30X48 Strato Pi UPS server with Raspberry Pi 4 Model B 8GB

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Page 1   Strato Pi UPS User Guide July 2021 Revision 027 SPBU30X Strato Pi UPS board SPMU30X Strato Pi UPS server with Raspberry Pi 3 Model B SPMU30XP Strato Pi UPS server with Raspberry Pi 3 Model B+ SPMU30X41 Strato Pi UPS server with Raspberry Pi 4 Model B 1GB SPMU30X42 Strato Pi UPS server with Raspberry Pi 4 Model B 2GB SPMU30X44 Strato Pi UPS server with Raspberry Pi 4 Model B 4GB SPMU30X48 Strato Pi UPS server with Raspberry Pi 4 Model B 8GB...
Page 2: Table Of Contents
Safety information Qualiﬁed personnel Hazard levels Safety instructions General safety instructions Battery and external rechargeable battery Introduction Features Usage and connections Device identiﬁcation Hardware Installation Strato Pi UPS board Strato Pi UPS server The external UPS battery Replacing the RTC backup battery Terminal block Power supply Auxiliary power supply output...
Page 3 Technical speciﬁcations Dimensions Disposal Installation and use restrictions Standards and regulations Safety instructions Set-up Conformity Information CANADA RCM AUSTRALIA / NEW ZEALAND Compliance information for Raspberry Pi CANADA Strato Pi UPS User Guide...
Page 4 The product information on the web site or materials is subject to change without notice. Please download and read the Sfera Labs Terms and Conditions document available at: http://www.sferalabs.cc Strato and Sfera Labs are trademarks of Sfera Labs S.r.l. Other brands and names may be claimed as the property of others.
Page 5: Safety Information
Safety information Carefully and fully read this user guide before installation and retain it for future reference. Qualiﬁed personnel The product described in this manual must be operated only by personnel qualiﬁed for the speciﬁc task and installation environment, in accordance with all relevant documentation and safety instructions.
Page 6: Safety Instructions
Safety instructions General safety instructions Protect the unit against moisture, dirt and any kind of damage during transport, storage and operation. Do not operate the unit outside the speciﬁed technical data. Never open the housing. If not otherwise speciﬁed, install in closed housing (e.g. distribution cabinet).
Page 7 WARNING Improper handling of lithium and lead-acid batteries can result in an explosion of the batteries and/or release of harmful substances. Worn-out or defective batteries can compromise the function of this product. Replace the RTC lithium battery before it is completely discharged. The lithium battery must be replaced only with an identical battery.
Page 8: Introduction
Introduction Strato Pi UPS enhances the Raspberry Pi Model B version 2, 3 and 4 with several hardware features to make it suitable for use in professional applications where reliability and service continuity are key requirements. Strato Pi UPS is available as a bare board or fully assembled unit, including a Raspberry Pi 3 Model B or B+ or Raspberry Pi 4 Model B, in a standard DIN-rail case.
Page 9: Features
Features Strato Pi UPS board and server: ✓ 9-28Vdc power supply, with surge and reverse polarity protection, and 2.2A resettable fuse ✓ up to 4.0A max current to the 5V Raspberry Pi power supply input pins (at 24Vdc) ✓ real time clock with replaceable CR1025 Lithium / Manganese Dioxide back-up battery ✓...
Page 10: Usage And Connections
Usage and connections STRATO PI UPS CONNECTION DIAGRAM Device identiﬁcation The device can be identiﬁed with the information provided in the rating and identiﬁcation plate, permanently attached to the side of the case. EXAMPLE RATING AND IDENTIFICATION PLATE Strato Pi UPS User Guide...
Page 11: Hardware Installation
Hardware Installation Strato Pi UPS board The Strato Pi UPS board is supplied with all connectors pre-installed. No soldering is required. You should connect Strato Pi to Raspberry Pi through the GPIO connector. Use appropriate turrets/spacers to ﬁrmly bolt the two boards together, ensuring that no conductive part of one board touches any part of the other board.
Page 12: Replacing The Rtc Backup Battery
Reversing the battery polarity may damage the product and the battery. Dispose of used batteries according to local regulations and the battery manufacturer's instructions. Follow the battery manufacturer's instructions when installing the external UPS battery (not provided). Replacing the RTC backup battery Strato Pi UPS has a hardware real time clock with a dedicated long-life non-rechargeable back-up battery.
Page 13 Use a non-conductive pin or small tool to help extract the battery from its holder. Insert the new battery with a gentle push. You don't need tools to insert the battery. The battery is held into place by a spring contact. Be sure to insert the battery so that the positive (+) terminal of the battery is in contact with the outer body of the battery holder, and the negative (-) terminal is in contact with the contact pad of the circuit board, as shown in the photo below.
Page 14: Terminal Block
OPENING THE CASE OF RASPBERRY PI 4 MODEL B MODELS Terminal block Strato Pi UPS has a 10 positions terminal block for power, battery, auxiliary power supply output and serial connections. The maximum conductor cross section is 1.5 mm (16 AWG), or 0.5 mm when using ferrules (highly recommended).
Page 15: Power Supply
Power supply Strato Pi UPS can be powered with DC voltage only: ✓ DC: nominal voltage range 9.0V to 28.0V. Respect the correct polarity shown in the schematic diagram (+ -). The power supply circuit implements reverse polarity protection using an auto resetting fuse and surge protection up to ±1000V/2ohms 1.2/50μs.
Page 16: Auxiliary Power Supply Output
A 2.2A resettable fuse is also used to protect the battery input. When Strato Pi UPS works under battery power, the maximum 5V current delivered to the Raspberry Pi should not exceed 3.5A when the battery is fully charged. Auxiliary power supply output Strato Pi UPS has an auxiliary power supply output pin, labeled VSOUT, to power external devices.
Page 17: Software Installation And Configuration
UPS functions. Run the following commands to download and install the Strato Pi utility: $ cd /usr/local/bin $ sudo wget http://sferalabs.cc/files/strato/strato $ sudo chmod 755 strato You can run the Strato Pi utility without arguments to print its options:...
Page 18: Installing The Real Time Clock Software
$ sudo apt-get install i2c-tools With these prerequisite installs completed, you should download and run Strato Pi’s installation script: $ cd $ wget http://sferalabs.cc/files/strato/rtc-install $ chmod 755 rtc-install $ sudo ./rtc-install If the script completes with no errors, delete the installation script and reboot:...
Page 19: Configuring The Serial Port
If the returned date and time is not correct, or “hwclock” returns an error, use the “-w” option to set the hardware clock to the current time: $ sudo hwclock -w Then recheck the time stored in the hardware clock to ensure it matches. Linux may have failed to automatically update the hardware clock after the last reboot if its internal registers contained invalid values.
Page 20 If you are using Strato Pi’s serial ports for your applications, you also need to disable the Linux serial console, otherwise it will send console data to the serial port. Disable the ttyAMA0 console service: sudo systemctl disable serial-getty@ttyAMA0.service Edit the /boot/cmdline.txt ﬁle and delete the serial console conﬁguration: console=serial0,115200 Strato Pi UPS User Guide...
Page 21: Using Strato Pi Ups
Using Strato Pi UPS Real Time Clock Strato Pi UPS has a hardware real time clock with a dedicated long-life non-rechargeable back-up battery. Once the RTC modules and conﬁguration ﬁles are properly installed, you will simply use the date and time commands to control the hardware clock. ATECC608A secure element Strato Pi UPS embeds the ATECC608A secure element chip from Microchip.
Page 22 Simply connect the RS-232 RX, TX and GND lines to the RS-232 posts of the Strato Pi terminal block or the RS-485 A, B and GND to the RS-485 posts of the terminal block. Never connect both RS-232 and RS-485 lines to Strato Pi. Strato implements a single serial port, not two.
Page 23: Buzzer
Buzzer Strato Pi UPS has an on-board buzzer that can be controlled using GPIO20. Simply set GPIO20 to high to emit a continuous sound, and back to low to stop. The buzzer is not intended to emit sound indeﬁnitely and could be damaged doing so. Buzzer on continuously: $ sudo strato beep on Buzzer off:...
Page 24: Power Cycle
If the Strato Pi UPS controller doesn’t see GPIO5 changing state for more than 60 seconds, it will initiate a shutdown procedure, rising the GPIO12 timeout pin to high, to signal that a watchdog timeout has occurred. If possible, you should immediately initiate a software shutdown on Raspberry Pi, and set the GPIO16 shutdown pin to high.
Page 25: Thermal Considerations For Strato Pi Ups Server
Thermal considerations for Strato Pi UPS server The Raspberry Pi draws power and generates heat proportionally to CPU and GPU load. The Strato Pi main regulator also generates heat proportionally to the total amount of current that it has to supply to the Raspberry and, if present, external devices. The thermal behaviour of Strato Pi UPS server is dynamic and affected by operating conditions and the external environment temperature.
Page 26 35C AMBIENT TEMPERATURE, LOW CPU LOAD 35C AMBIENT TEMPERATURE, HIGH CPU LOAD Strato Pi UPS User Guide...
Page 27 45C AMBIENT TEMPERATURE, LOW CPU LOAD 45C AMBIENT TEMPERATURE, HIGH CPU LOAD Strato Pi UPS User Guide...
Page 28: Block Diagram
Block diagram STRATO PI UPS BLOCK DIAGRAM Strato Pi UPS User Guide...
Page 29: Technical Specifications
Technical speciﬁcations Power supply 9-28 V⎓ (VDC) Reverse polarity protection with 2.2 A resettable fuse. Surge protection up to ±1000V/2ohms 1.2/50μs Battery input 12 V lead acid battery (not provided). Suggested capacity: 1.2 Ah. Reverse polarity protection with 2.2 A resettable fuse. Surge protection up to ±500V/2ohms 1.2/50μs UPS battery maximum charge voltage 15 V...
Page 30 Electromagnetic immunity compliance EN 61000-4-2 (ESD) EN 61000-4-3 (Radiated RF Field) EN 61000-4-4 (Burst/fast transient) EN 61000-4-5 (Surge) EN 61000-4-6 (Conducted) EN 61000-4-8 (Power frequency magnetic ﬁeld) Internal RTCC circuit with backup lithium battery. Only use CR1025 Lithium / Manganese Dioxide (Li/ MnO2) batteries. ...
Page 31: Dimensions
Dimensions DIMENSIONS (mm) Strato Pi UPS User Guide...
Page 32: Disposal
Disposal Waste Electrical & Electronic Equipment (Applicable in the European Union and other European countries with separate collection systems). This marking on the product, accessories or literature indicates that the product should not be disposed of with other household waste at the end of their working life. To prevent possible harm to the environment or human health from uncontrolled waste disposal, separate these items from other types of waste and recycle them responsibly to promote the sustainable reuse of material resources.
Page 33: Conformity Information
✓ EN 61000-6-3:2007/A1:2011/AC:2012 - EMC Emission standard for residential, commercial and light-industrial environments The declaration of conformity is available at: https://www.sferalabs.cc This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
Page 34: Canada
CANADA This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada. RCM AUSTRALIA / NEW ZEALAND This product meets the requirements of the standard EN 61000-6-3:2007/A1:2011/ AC:2012 - Emission for residential, commercial and light-industrial environments.
Page 35 l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. Strato Pi UPS User Guide...
Page 36 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Sfera Labs SPBU21X SPMU21X SPMU21XP SPMU30X42 SPBU30X SPMU30X44 SPMU30XP SPMU30X48 SPMU30X...

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Sferalabs Strato Pi SPMU30X User Manual

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