SMA SI 6.0H-13, Operating Manual

Page: 65 / 188

6 Electrical Connection SMA Solar Technology AG
Operating manual 65 SI44M-80H-13-BE-en-15
Checking the Generator Connection
Test point Test criterion Ok
The connection cables The conductor cross-section is sufficient for the maximum generator
current. ☐
The cables are sufficiently protected by circuit breakers. ☐
With a three-phase off-grid system, al-
location of the line conductors The allocation of the Sunny Island inverters to the line conductors of
the generator results in a right-hand rotating magnetic field. The master
must be assigned to L1, slave 1 must be assigned to L2, slave 2 must
be assigned to L3. ☐
Grounding The exposed conductive part of the generator is grounded. ☐
Checking the Control and Measuring Cables
Test point Test criterion Ok
Battery temperature sensor if installed The battery temperature sensor is connected to the terminal BatTmp . ☐
The battery temperature sensor is secured in the middle of the battery-
storage system, in the upper third of the battery cell. ☐
If installed, the control and measuring
cables of the Multicluster-Box The control and measuring cables are correctly connected (see Multi-
cluster-Box manual). ☐
If installed, the measuring cable of the
battery current sensor The measuring cable of the battery current sensor is connected to the
terminal
BatCur with the correct polarity (see Section 6.5.9,
page 45).
☐
Control cable of the load shedding, if
installed The multifunction relay and the load-shedding contactors are correctly
wired to each other (see Section 6.5.12, page 48). ☐
Cables at BatTemp and BatCur The insulated conductors must be threaded through a ferrite. ☐
The cable length for BatCur must be less than 3 m. ☐
The cable length for BatTmp must be less than 30 m.
☐
If cable lengths of 30 m and more are required for BatTemp, suitable
lightning protection precautions must be taken. ☐
If the battery temperature sensor and the batteries are not installed
with the inverter in the same building, suitable lightning protection pre-
cautions must also be taken. ☐
Cable at BatVtgOut and DigIn The cable must be threaded through a ferrite. ☐
The cable length must be less than 30 m. ☐
If cable lengths of 30 m and more are required for BatVtgOut and Di-
gIn, suitable lightning protection precautions must be taken. ☐
If cables are to be laid outside for BatVtgOut and DigIn, suitable light-
ning protection precautions must be taken. ☐