Studer next 3, Quick Manual

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9 8
RTC
battery
L1 L2 L3 N L1 L2 L3 N L1 L2 L3 N
AC Flex
+ -
+ -
BATTERY
AC Source AC Loads
2’
Wiring
EN
The device must be installed in accordance with local standards and regulations in force.
FR
L’appareil doit être installé conformément aux normes et réglementations locales en vigueur.
DE
Das Gerät muss gemäß den geltenden örtlichen Normen und Vorschriften installiert werden.
ES
El dispositivo debe instalarse de acuerdo con las normas y regulaciones locales vigentes.
Battery connection
• 4 x 70mm
2
cable M8, 10Nm
(Up to 4x95mm
2
M8, 10Nm)
Protection device
(battery side)
• 400A
BAT+, M8
BAT-, M8
Earthing
• min 16mm
2
, same section as
the AC cables up to 25mm
2
• The solar generator must be
class II insulated
M8 T10
Solar PV (MPPT 1, MPPT 2)
• 2.5-6mm
2
cable, Sunclix connector
Protection device (PV side)
Overvoltage protection, SPD : 4x900Vdc (1 per input)
*
In parallel,
similar strings
with the same
number of
modules
MPPT1
string 1.1
string 1.2
MPPT2
string 2.1
string 2.2
GND
CANH
CANL
shield
bus termination
CAN BMS
Communication with Lithium
batteries
Connector included
Check list
Communication
studer nx communication bus
2x RJ45 black flat cable: nx
interface, multi-units
O
T
studer
nx bus 1
bus termination
O
T
GND
D+
D-
shield
bus termination
RS485i
Modbus communication
connector included
O
T
+12V
In1
In2
return
Remote entries
2 remote inputs
connector included
nx tempsensor
Temperature sensor for
lead-acid batteries
studer
nx bus 2
Auxiliary contacts
2 auxiliary contacts (outputs)
connectors included
NC
C
NO
NC
C
NO
AC
• Up to 5 x 25mm
2
cable, 1.6Nm
Protection device AC to protect cables,
circuit breaker type B
Protection device AC to protect people
RCCB/RCD, check earth scheme
Overvoltage protection SPD