DIY User Manual

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10-539-1 MN5048DIY REV -
MN5048DIY
User Manual
5. Other functions
5.1 Dry contact
Working principle: This dry contact can start and stop the generator to
charge the battery. ① Normally, the terminals are that the NC-N point is closed and
the NO -N point is open; ② When the battery voltage reaches the low voltage
disconnection point, the relay coil is energized, and the terminals turn to that the
NO-N point is closed while NC-N point is open. At this point, NO-N point can drive
resistive loads: 125VAC/1A, 230VAC/1A, 30VDC/1A.
5.2 USB communication port
This is a USB communication port, which can be used for USB communication with
the optional PC host software . To use this port, you should install the
corresponding "USB to serial chip CH340T driver" and APP in the computer.
Normally
Open
Common
Normally
Closed
5.2 RS485 communication function
There are two communication ports RS485-1 and RS485-2 and also two functions:
① RS485 communication with lithium battery BMS can be conducted
directly through this port RS485-2 (need to be customized);
② RS485-1 is connected to the selected RS485 to WiFi /GPRS
communication module independently developed by our company After the
selected module is equipped, the reverse control all-in-one machine of our
company can be connected through mobile APP, and the operating
parameters and status of the reverse control all-in-one machine can be checked through the
mobile APP.
③ Such as shown in the figure: pin 1 is 5V power supply; pin 2 is GND, pin 7 is RS485-A and
pin 8 is RS485-B.