Symbols On The Product - SMA SUNNY ISLAND 4.4M Schnelleinstieg

SMA Solar Technology AG
Permanent damage to the battery due to improper handling
Improper set-up and maintenance of the battery can cause it to become permanently damaged. Logs can help to
determine the cause.
• Comply with all requirements of the battery manufacturer with regard to mounting location.
• Check and log the status of the battery before performing maintenance work. Tip: Many battery manufacturers
provide suitable logs.
– Check the battery for visible damage and log.
– Measure and log the fill level and acid density of FLA batteries.
– In the case of lead-acid batteries, measure and log the voltages of the individual cells.
– Perform and log the test routines required by the battery manufacturer.
2.4
Wiring and connection of automatic transfer switches for single-phase or three-phase battery-
backup systems
• Do not bridge the neutral conductors of connections X1 to X5 in the automatic transfer switch. If the neutral
conductor connections are bridged, residual-current devices could trip accidentally.
• Label the equipment and devices of the automatic transfer switch in accordance with the schematic diagrams.
This will facilitate installation, commissioning and assistance in case servicing is required.
Connection of automatic transfer switches for single-phase battery-backup systems
In single-phase battery-backup systems, only the line conductor of the Sunny Island that is connected to the circuit
breaker F1 of the automatic transfer switch is monitored for grid failure. If terminal AC2 Gen/Grid L is connected
to another line conductor, the battery-backup system is not able to synchronize with the utility grid following a grid
failure.
• With single-phase battery-backup systems, connect circuit breaker F1 and terminal AC2 Gen/Grid L of the
Sunny Island to the same line conductor, e.g. to L1 (for a single-phase battery-backup system with an all-pole
disconnection function).
• Connect the PV inverter and the Sunny Island to the same line conductor if possible. This way, in the event of
grid failure, the PV inverters are supplied with voltage directly and then can feed in even if phase coupling is
deactivated.
2.5
Safety in accordance with IEC 62109
In order to guarantee safety in accordance with IEC 62109, you must take one of the following measures:
• Connect a grounding conductor made of copper wire with a cross-section of at least 10 mm² to terminal
AC1 or AC2.
• If one grounding conductor each is connected to AC1 and AC2, each grounding conductor must be made
of copper wire and have a cross-section of at least 4 mm².

3 Symbols on the Product

Symbol
Quick Reference Guide
Downloaded from www.Manualslib.com
Battery-Backup System Safety Information
Grounding
Explanation
Beware of electrical voltage
The product operates at high voltages.
manuals search engine
NOTICE
SI44M-60H-80H-12-IS-xx-12
3 Symbols on the Product
13