30
Isolation voltage of the MPLC cable should be greater than 1,000V,
recommended cable specification: 0.5mm
2
.
MPLC cable must be connected to an additional SPD with the protection degree
of 3. Otherwise, device damage may occur.
The built-in MPLC module of the Logger4000 supports AC voltage less than
1000V.
In case of MPLC communication, the distance between the Logger4000 and the
inverter should be no more than 1,000m.
MPLC networking is intended for medium voltage grid-connection. If low
voltage grid-connection is desired, observe the following two conditions:
•
Never connect a load between the Logger4000 and the MPLC slave node.
•
The distance between the Logger4000 and the load should be greater than
20m, that is, the LV grid-connection point should be more than 20m away
from the nearest load distribution line. The load includes air conditioners,
machines, motors, etc.
In case of MPLC communication, note that:
•
Electrical connection between the inverter and its downstream transformer
has been correctly performed.
•
Input and output circuit breakers of the Logger, inverter, and transformer are
connected.
7.5
Connecting to the Meteo Station
Meteo Station of the Modbus-RTU protocol can be connected to the Logger4000.
step 1
Connect the communication cable led from the Meteo Station to the RS485 port of the
Logger4000.
step 2
Strip the protection layer and insulation layer of the communication cable with a wire
striper, as shown in the figure below.
User Manual
