Andino USV

The Maintenance free UPS

Andino USV: Without Batteries

A maintenance free uninterruptible power supply with long life expetancy

Overview

The Andino UPS is an uninterruptible power supply that bridges short-term voltage dips. The goal is to allow a controlled shutdown of controls to prevent data loss. This allows, for example, databases and applications to be closed or file systems synchronized. By dispensing with batteries, the Andino UPS 100% maintenance-free – and that for years. UPSs based on lead batteries show their unreliability, especially in the case of cases. Andino UPS guarantees its performance even after many years of running time. Andino UPS operates with 24 volts at the input and output. Thus, lossy converters are unnecessary.

The Andino USB offers the following advantages:
  • Allows the controlled shutdown of industrial controls and single board computers such as the Andino X1, Raspberry Pi.
  • Operates with 24 V as input and output voltage.
  • Mounting in control cabinet on DIN rail.
  • No external batteries required.
  • Power Fail Signal. As TTL and falling relay.
  • Internal status readable via UART Interface (TTL to USB)

Additional Information and Downloads can be found on GitHub

Intelligent Power Control

Andino UPS informs the client to shut down after the good threshold has fallen below

Andino UPS are able to control a power return after the Shutdown signal was given to the client.

24 Volt In- and Output

The Andino UPS has a 24V DC voltage input with reverse polarity protection. The integrated EMC protection circuits protect the following hardware from voltage surges and current surges on the supply line. A buffer power of 10W is available for 40 seconds, sufficient time for a controlled shutdown.

For SPS

Andino UPS supports all compact computers with an input voltage of 24 V.

Power Down Signal

In the event of a voltage drop, the Andino UPS outputs a galvanically isolated signal. This can be used to control any actions that are necessary before the shutdown. Conventional cheap UPS offer only a USB interface.

Diagnostic

The internal state of the UPS can be queried via i2c.

  • Charging status of the memories
  • Current measured capacity of memory
  • Current Voltage at the memories
  • temperature
  • ..and more.
Made in Germany

Designed, developed and manufactured in Germany.

Standards – EMC

The Andino UPS has been extensively tested for its electromagnetic compatibility (EMC).

The tests were based on the immunity to electrostatic discharge, high-frequency electromagnetic fields, fast transient electrical disturbances (burst), impulse voltages, conducted disturbances – induced by high-frequency fields and magnetic fields with energy-related frequencies.

The tested standards in detail

Radiated field strength / conducted emissions
DIN EN 55022: 2011 according to VDE 0875 part 22 of 12.2011
Störaussendung: Klasse B (Wohnbereich) (strengere Grenzwerte)
Störfestigkeit: Klasse A (Industriebereich) herangezogen. (höhere Einstrahlung)

Immunity ESD
DIN EN 61000-4-2: 2009 according to VDE 0847 part 4-2 of 12.2009

Immunity radiated electromagnetic fields
DIN EN 61000-4-3: 2006+A1:2008+ A2: 2010 according to VDE 0847 part 4-3 of 04.2011

Immunity Burst
DIN EN 61000-4-4: 2012 according to VDE 0847 part 4-4 of 04.2013

Immunity Surge
DIN EN 61000-4-5: 1995 +A1: 2014 according to VDE 0847 part 4-5 of 03.2015

Immunity high frequent uncoupled emission
DIN EN 61000-4-6: 2014 according to VDE 0847 part 4-6 of 08.2014

Immunity magnetic fields
DIN EN 61000-4-8: 2010 according to VDE 0847 part 4-8 of 11.2010

Life expectancy

The life expectancy of the used memory is strongly dependent on the ambient temperature. At 43 degrees, the memory loses 30% of its capacity after about 7 years.

Lebenserwartung Supercap - Lifetime of Supercapacitor

Andino UPS mounted on a DIN Rail in a electric cabinet

Andino UPS

The open Firmware is formed as a state machine. It is bases on the Arduino IDE and can be found on GitHib.