SolaX Power X1-Hybrid-G4 3.0 kW Manuel D'installation page 73

• BMS/DRM/CAN/COM/LCD port connection
1. Pin definition for BMS
Pin
Pin BAT_
Definition TEMP
* The communication port on the lithium battery must be consistent with the definition of
pins 4, 5, 7, and 8 above.
2. Pin definition for DRM
Pin
Pin Definition DRM1/5 DRM2/6 DRM3/7 DRM4/8
* For AS4777 DRM, only PIN6 (DRM0) and PIN1 (DRM1/5) are functional now.
3. Pin definition for CAN
Pin
Pin Definition 485A
4. COM / LCD
4.1 Pin definition for COM / LCD
Pin 1
Pin Drycontact_
Definition A (in)
* You can communicate the inverter and external devices through the COM interface.
Professional users can use pins 4 and 5 to realize data acquisition and external control
functions. The communication protocol is Modbus RTU.
* When the ShutDown function is enabled, connecting pins 1 and 2 can shut down the
inverter. (Settings <Password 2014> → Advance Settings → ShutDown → Enable)
4.2 Situation of external equipment controlled by the inverter
USB to RS485
converter
1 2
GND GND
1 2
1 2
485B VCC
2
Drycontact_
B (in)
Data Read
3 4
BMS_ BMS_
CANH CANL
3 4
+3.3V
3 4
CANH CANL
3 4 5
+13V 485A 485B GND
5 6 7
BMS-
X
485A
5 6
DRM0
5 6
GND
6 7
Drycontact_
A (out)
Adapter Box
8
BMS_
485B
7 8
GND GND
7 8
SYN1 SYN2
8
Drycontact_
B (out)
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