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NOTICE:
NOTICE:
NOTICE:
•
selecting CT1 or electricity meter, please refer to section 6.4.4 for details.
•If the cable such as “CT1” cable is not used, please do not remove the filler plug from
the cable support sleeve.
•CT 1 wire (5m in length) specification: RJ45, standard LAN line (one end with 8P
modular plug, the other connected with current transformer). But if the length is not
enough, customer can add cable, so the length can be increased to 15m max, the
operation is as follow Fig:
The meter and CT1 can't be installed at same time, please set the sensor model when
During the actual operation, please pay attention to the installation of current
transformer as the diagram shows below:
Fig 5.26
Fig 5.25
As illustrated above, open the current transformer and you can see an arrow labeled on it
indicating the direction of current. Put the live wire among the under-detection wires
onto the current transformer. After latching the current transformer, the installation has
been finished.
The direction of the arrow on the current transformer is corresponding to the direction of
the current in live wire from grid to the load. Current transformer needs to be placed in
the power distribution cabinet.
5.4.5 Connection of meter terminal
We also can use meter instead of CT1 in SPA series to monitor the power consumption
situation of
residential users, the meter terminal connection steps are as follows:
•Reference 5.2, make LAN cables with RJ45 terminal.
•Thread the swivel nut over the LAN cable.
•Press the cable support sleeve out of the cable gland.
•Remove the filler plug from the cable support sleeve.
•Route the LAN cable through an opening in the cable support sleeve.
•Thread the LAN cable through the cable gland.
•Insert the RJ45 plug of the network cable into the “Meter” pin connector on the
inverter until it snaps into place.
•If no other cables need to be installed, lock the waterproof cover to the inverter with
screws.
•Screw the swivel nut onto the waterproof cover.
Fig 5.27
Fig 5.28
•
selecting CT or electricity meter, please refer to section 6.4.4 for details.
•Meter must be provided by Growatt. If not, maybe meter can't communicate with SPA
series.
•The more detail describe of meter installation, please turn to meter user manual
Meter and CT can't be installed at same time, please set the sensor model when
