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73
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connect to COM
connect to DG
connect to COM
connect to SY
A:the Installation location of
overflow water level
sensor.
1. B:the Installation
location of pump dryed
water level sensor.
2. C:Pump outlet.
3. S about 1-3 m .
A
B
C
S
For dry protection, the end with cable
of sensor should be upwards
For over-
flow protection, the end with cable of
sensor should be downwards.
Figure6-9 The installation figure of Sensor B
14.7 Communication Connection
14.7.1 RS485 Communication
When the inverter communicates with a single machine, the communication
between the inverter and the monitoring equipment can be connected through
the communication cable. The COM outside the inverter is the remote
communication terminal, and the output terminal wire is connected to the
monitoring equipment (computer).
Notice
！
If you choose Water Level Sensor B, please Notice the following aspects
when intall:
1. For dry protection, the end with cable of sensor should be upwards;
2. For over-flow protection, the end with cable of sensor should be
downwards.
