Initial Start-up SMA America, LLC
68 SI5048U-TUS121440 Technical Description
3. Use ”New System” to set the following parameters:
– Device type (master, slave1, slave2, slave3)
– System configuration (see table for setting options)
–Date / Time
– Battery type (VRLA, FLA, NiCd), default setting: ”VRLA”
– Adjustable for FLA and VRLA: Nominal voltage of the battery 42 V - 52 V adjustable in
2V- steps; default setting 48 V. For NiCd: Nominal voltage of the battery 43.2 V to 48 V
adjustable in 1.2 V-steps; default setting 45.6 V.
– Nominal capacity of the battery (100 Ah - 10,000 Ah), default setting: ”100 Ah”
Systems with One Sunny Island
If only one Sunny Island is used in the system, the device type is set to ”master” and is not
displayed.
Displayed text Description
3Phase 3-phase system, 3 Sunny Island inverters
1Phase1 Single-phase system, 1 Sunny Island inverters
1Phase2 Single-phase system, 2 Sunny Island inverters
1Phase3 Single-phase system, 3 Sunny Island inverters
1Phase4 Single-phase system, 4 Sunny Island inverters
2Phase2 2-phase system, 2 Sunny Island inverters
2Phase4 2-phase system, 4 Sunny Island inverters
MC-Box Setting for Multicluster operation
Battery types
VRLA: Valve Regulated Lead Acid
Closed lead acid batteries with immobilized electrolyte in gel or AGM (Absorbent Glass
Mat Separator) in all standard designs available on the market (grid plate, tubular plate,
small, large, AGM, Gel, etc.).
FLA: Flooded Lead Acid
Closed lead acid batteries with liquid electrolyte in all standard designs available on the
market (grid plate, tubular plate, small, large, etc.).
NiCd: Nickel Cadmium
Sealed Pocket-type plate or fiber plate nickel-cadmium batteries.
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