INSTALLATION GUIDE
MODULAR SUNWAY TG
TE OD
Rev. 03
– 01/06/2018
39/
139
4.11.
Programmable digital outputs
Two programmable digital outputs are available on each DC section in the SUNWAY TG TE inverters (PDO1
and PDO2) on the terminal boards (X6 and X6B). Please refer to the Electrical and Mechanical Diagram.
Programmable output
Type of output
Default setting
PDO1
Relay contact
DC insulation loss signal
PDO2
Relay contact
Inverter running signal
Table 6: Factory settings of the programmable digital outputs
For further details on how to program the digital output, please refer to the Programming Guide.
4.12.
Ventilation system
The SUNWAY TG TE inverters feature a modular ventilation system, made up of the following elements:
•
A fan set installed on the converter.
•
A fan set in the cabinet.
The fans are controlled directly by the control board. A thermostat is connected to the cabinet fans by way
of a redundant connection.
The inverter features a diagnostic function for the fan status, one function for each fan set. Malfunctioning,
if any, is signalled by a dedicated warning, displayed on the keypad and available as a parameter for the
acquisition from external masters. For more details, please refer to the Programming Guide.
For technical data related to absorption and flow rate of the ventilation system, please refer to section
4.12.Auxiliary power supply
The electronic components inside the cabinet, the ventilation system and, if need be, the combiner boxes
are power supplied by a power supply source called auxiliary power supply (external power supply source).
This allows not to affect the energy produced and computed for the feed-in tariffs, as the aux power supply
is generated upstream from the plant power meter. The auxiliary power supply is to be connected to
terminals 3-4 in X10.
If an external power supply source is not available, power supply can be obtained internally to the cabinet
by way of the
Self-power supply
option.
Please refer to section
Error! Reference source not found.
.
4.13.
Power supply from UPS
The internal electronic components, the ventilation system and the combiner boxes that have been excluded
may be supplied by an external UPS. In that way, the inverter is detected by the remote monitoring system
also when power is down, within the endurance range of the UPS connected to the inverter. Power supply
via UPS is required for the inverters featuring PV field voltage up to 1500V.
See section 6.
Please refer to the Electrical and Mechanical Diagram.
4.14.
DC input fuses
NOTE
Fuses are to be ordered separately from the inverter, based on the target application.
The chosen fuses must be defined in the order confirmation.
