GND
RTD3
RTD3
24V
-WTACH
+WTACH
PT100
RTD2
RTD2
PT1000
A2
COM
A2
RTD1
RTD1
A1
A1
COM
a06
CARD
COM
CARD
Alarm (congurable): the relay switches whenever there is an alarm (Error) or a Warning, which
has been previously selected by the user through the dedicated menu.
If the N/O (or N/C) contact is chosen, the contact will stay open (or closed) until the inverter reports
an error or a warning out of those selected from the menu. Once the inverter displays an error or
a warning out of those selected, the relay switches state and closes (or opens) the contact. The
relay remains switched from its rest condition until the alarm or warning has disappeared.
Crepuscular (twilight): the relay switches when the voltage from the photovoltaic array exceeds/
falls below the threshold set for grid connection.
If the N/O (or N/C) contact is chosen, the contact will stay open (or closed) until the inverter has
an input voltage higher than the one selected for grid connection. The contact remains switched
from its rest condition for as long as the inverter is switched on (even if not connected to the grid).
This mode is can be used to disconnect large output transformers that could have unnecessary
consumption during the night.
Environmental sensors a06
Up to two temperature sensors and two general
analog sensors for monitoring environmental
systems can be connected to TRIO via terminals
at location a06 on the communication board.
Terminal groups RTDxPT100 and RTDxPT1000
are dedicated analog inputs for temperature
sensors:
PT100 - Connection of a PT100 temperature
sensor
PT1000 - Connection of a PT1000 temperature
sensor
Terminal pairs A1 and A2 allow connection of two
2-wire external analog sensors:
A1+A1COM - Analog sensor 1 connection,
A2+A2COM - Analog sensor 2 connection
Proper orientation of the analog sensors
connected to these inputs requires specic
calibration parameters to be set into the inverter
memory. The required parameters necessary for any 2-wire sensor are: GAIN, OFFSET, AND
UNIT of MEASURE.
To Next Page
Loading...
