INSTALLATION GUIDE
MODULAR SUNWAY TG
TE OD
Rev. 03
– 01/06/2018
51/
139
Each DC column is connected to its
own independent PV field. Each
conversion
module
operates
independently of each other and
performs the MPPT function. The
PV arrays may have different
features
and
installation
requirements.
The
transformer
may be single secondary or double
secondary.
6.1.
Wire connection terminal board
The terminal boards and input/output wire connection terminals are given in the table below. Throughout
this document, the DC and AC suffixes will be used when referring to terminal boards and wire terminals for
the terminals related to the DC and AC section respectively, followed by their ID number. For example,
terminal board “X2” in the AC section will be referred to as AC.X2.
Location
Identifier
Type
Function
AC Module
X2
Power terminal board
AC Three-phase grid
AC Module
X6
Signal terminal board
I/O Terminal board
AC Module
X10
Auxiliary power supply
terminal board
230 V
AC
Auxiliary terminal board
AC Module
38A1
Ethernet Switch (*)
Data connection (remote monitoring)
DC Module
10 F1 … F36
DC fuses
PV field
DC Module
X10
Signal terminal board
Environmental sensors
DC Module
X11
Signal terminal board
RS-485 COM1 serial link (optional)
Table 9: Wire Connection Terminal Board
6.2.
General prescriptions on connections
WARNING
No cable glands to be left open. Either route a cable through or fit a compatible sealing
insert into every each cable gland to preserve the IP54 ingress protection degree. Cable
glands left open let water, dust and insects in, thus voiding the product warranty.
WARNING
All cable glands must be accurately tightened to preserve the IP54 ingress protection
degree. Cable glands loosely tightened let water, dust and insects in, thus voiding the
product warranty.
6.3.
DC modules power connections
6.3.1. Removing the grilles
The protective grilles ensure IP20 degree of protection in respect to the live components. Remove the
protective grilles to gain access to the power terminals.
