SMA SUNNY ISLAND 8.0H Installation Manual page 73

SMA Solar Technology AG
Checking for Generator Connection
If a generator is present, the following steps must be carried out:
Check item
Connection cable
Allocation of the line
conductors for a three-phase
off-grid system
Earthing
Checking for Control and Measuring Cables
Check item
Battery temperature sensor
Control and measuring cables
of the Multicluster Box, if
present
Measuring cable of the
battery current sensor, if
present
Load shedding activation, if
present
Installation Manual
Check criterion
The conductor cross-section is sufficient for
the maximum generator current.
The cables are sufficiently protected by
miniature circuit-breakers.
The allocation of the off-grid inverters to the
line conductors of the generator results in a
right-hand rotating magnetic field. Master
must be assigned to L1, slave 1 must be
assigned to L2, slave 2 must be assigned to
L3.
The generator is earthed.
Check criterion
The battery temperature sensor is connected
to the BatTmp terminal.
The battery temperature sensor is attached
at the centre of the battery bank, on the
upper third of the battery cell.
The control and measuring cables are
correctly connected (see Multicluster Box
manual).
The measuring cable of the battery current
sensor is connected to the BatCur terminal
with the correct polarity
(see Section 6.7 "Installing Protective
Devices for DC Sources", page 39).
The multi-function relay and the load-
shedding contactors are correctly connected
(see Section 6.22 "Connecting the Control
Cables of the Load-Shedding
Contactors", page 60).
OK
OK
SI80H-60H-OffGrid-IA-en-11
7 Commissioning
Not
applicable
Not
applicable
73