Sunny Island 4500
Installation & Operating Instructions
BWRI45-13-EE0304
- 96 -
SMA Regelsysteme GmbH
Parameter Default
Description
501_Cbatnom
350 Ah
Nominal capacity of the battery of 10 hours. This always has
to be entered as defined in the manufacturer’s instructions
even if the battery has already aged!
In case the manufacturer did not specify a capacity of 10
hours select the specification that is nearest to the capacity
of 10 hours.
502_Bat Type
Lead acid
Lead storage battery with...
Lead acid:
... liquid electrolyte
Fleece:
... electrolyte bound in fleece
Gel:
... electrolyte bound in gel
503_Ubat nom
60.0 V
Nominal battery voltage.
504_Ubat min
51 V
min. battery voltage permissible
505_Ubat max
84 V
max. battery voltage permissible
506_acid density
1.24 kg/l
Nominal acid density of electrolyte, should be entered as
defined in manufacturer’s instructions to accelerate its adap-
tive determination by the Sunny Island.
509_Tbat max
40 °C
Maximum battery temperature permissible
Table 6.3:
Parameters to be entered for configuration via “New Battery“
Lead storage batteries with a liquid electrolyte are also called non-
VARLA while batteries labeled VARLA (
VA
lve
R
egulated
L
ead
A
cid) or
maintenance-free are normally gel or fleece batteries.
Initially, when started via “New Sys MASTER” or “New Battery”, the bat-
tery state will be set to L1 and will not change until a “normal charge”
could have been performed. In pure photovoltaically energized systems
this may take some days.
Furthermore, the displayed actual state of charge will not rise above 90%
for a certain time due to the adaptation process of the Sunny Island’s bat-
tery management.
This behavior is normal and there is no reason to be concerned.
You can only exit this menu again by pressing
[ ESC ]
after you have checked all
parameters (see Fig. 4.2).
