INSTALLATION GUIDE
MODULAR SUNWAY TG
TE OD
Rev. 03
– 01/06/2018
29/
139
Electric grid AC switch control lever (30QM1, 30QM2)
The control lever for the grid side switch, located inside the cabinet, makes it possible to connect the
SUNWAY TG TE to the grid. One or multiple switches are present based on the presence of one or multiple
DC sections.
Emergency Stop Button (41SB1)
The emergency stop button opens the switches on the PV field side and the grid side immediately, thus
inhibiting operation of the SUNWAY TG TE in parallel with the grid.
4.2.2. DC section(s)
Key-operated selector switch: Enable/Disable Inverter (22SA1)
This key-operated selector switch enables/disables operation of the SUNWAY TG TE.
Display/keypad (22A1)
Using the display/keypad, the operator can:
•
Send the inverter START, STOP and alarm RESET commands (start, stop, reset of the alarms
tripped).
•
Set machine parameters (please refer to the Programming Guide).
•
See measurements and any indications concerning the operating status of the inverter (please refer
to the Programming Guide).
PV field DC switch control lever (11QM1)
The lever of the PV field DC switch, located inside the cabinet, allows connecting the DC section of the
SUNWAY TG TE to the PV field.
The safety circuits and the release coils function at 24 V. The SUNWAY TG TE inverters are equipped with
two 24 V power supply units which operate in parallel. The first power supply unit is connected to the PV
power supply source while the other is connected to the grid. In this way the inverter safety circuits are
always powered by one inverter power source or the other.
The emergency function can have a remote operation facility by means of a contact available on the inverter.
Please refer to section 6.5.2.
4.3.
Control devices
The following control devices are located inside the inverter (the relevant ID codes used in the Electrical
and Mechanical Diagram are provided in brackets):
PV Generator DC Switch (11QM1)
The DC switch (PV field side), located inside the cabinet, makes it possible to connect the inverter to the
PV field.
Grid AC Circuit Breaker (30QM1, 30QM2)
The AC circuit breaker located inside the cabinet, makes it possible to connect the SUNWAY TG TE to the
grid. An AC switch is present for each DC section in the cabinet.
Grid Connection Contactor (41KM1)
The grid connection contactor is closed and/or opened by the control board and is normally interlocked with
the Interface Protection (DI). Please refer to sections 4.3.1 and 4.3.2.
WARNING
Before performing any operation inside the cabinet, follow the instructions given in
section 2.7.
4.3.1. Interface Protection IP
The Interface Protection (IP) relay is a component which performs the function of grid supervisor.
The grid interface represents one of the inverter's main safety functions.
All the electric grid values are measured and compared with an acceptance template. If the measured values
exceed the set thresholds, the inverter stops by opening the parallel contact.
