SMA SI 3324 Installation - Manual (Page 44)

Electrical Connection SMA Technologie AG
Page 44 SI3324/4248-14:SE2406 Installation Guide
5.4 Additional Connections
For installing the connections described below (battery temperature sensor, control
relays, communication, ...) either one cable with an external diameter between 7 mm
and 14 mm, or two cables with an external diameter of 6 mm each, may be used for
each cable feed-through in the underside of the housing.
The following figure provides an overview of the additional connection terminals. The
two terminal strips for the connections are arranged offset above each other.
3 2 7 5 Shield C AN_L C_GND CA
N
_ H
FAN+ TB
A T2 FAN- TB
A T1 S_IN- S_OUT
-
S_IN+ S_OUT+ SHIELD G_R
UN- SHIELD G_R
UN+ LO AD_S
G_REQ LO AD_S
G_REQ
Control
relay:
generator
Control
relay: load
shedding
Battery
temperature
sensor
cooling fans
Communication:
RS232 or
RS485
Signal
generator start