SMA SI 3.0-11 Installation - Manual (Page 12)

2 Safety SMA Solar Technology AG
12 SI30M-44M-60H-80H-IA-en-30 Installation Manual
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Risk of burns due to hot battery components
Improper battery connection may result in excessively high transition resistances. Excessive transition resistances give
rise to localized heat build-up. Heat build-up can cause burns.
• Ensure that all pole connectors are connected with the connecting torque specified by the battery manufacturer.
• Ensure that all DC cables are connected with the connecting torque specified by the battery manufacturer.
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Permanent damage to the battery due to improper handling
Improper storage, transport, 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 storage, transport, and mounting location.
• Check and log the status of the battery before commissioning and before performing maintenance work:
• 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.
Tip: Many battery manufacturers provide suitable logs.
Damage to the battery due to incorrect settings
Incorrect settings lead to premature aging of the battery. The parameter settings in the menu 220# Battery,
222# Chargemode, 262# BatUsage and 223# Protection impact the charging behavior of the Sunny Island
inverter (see Section 8.2 "Battery Management", page 67).
• Check whether initial battery charging with special settings is required.
If an initial charge is required, adjust the charging behavior of the Sunny Island inverter for one-off initial charging
(see Section 8.2.2, page 67).
• Ensure that the values for the battery as recommended by the battery manufacturer are set in the menus
222# Chargemode (see Section 8.2.2, page 67), 262# BatUsage (see Section 8.2.3, page 68 and Section
8.2.4, page 69), and 223# Protection (see Section 8.2.5, page 75) (for the technical data of the battery see
the documentation provided by the battery manufacturer). Note that the charging behavior names used by
SMA Solar Technology AG and the battery manufacturer may, in some cases, differ in meaning (for the charging
behavior of the Sunny Island inverter, see the Technical Information "Battery Management"). Tip: For questions
relating to the settings of the Sunny Island inverter, please contact the SMA Service Line.
Prior damage to batteries
Batteries may have suffered prior damage due to production defects. Logs can help to determine the cause.
• Check and log the status of the battery before commissioning and before performing maintenance work:
Performance impairment of batteries
Transition resistances can impair the performance of the batteries.
• Note the torques when connecting the battery.