7
CAUTION
Please refer to the "BMS Lithium Battery Protocols & Fixed ID Table" or contact our
technical supporters for the currently supported BMS manufacturers and the BMS
parameters.
②
Dry contact interface
Working principle:
When the battery voltage reaches the dry contact ON voltage (DON), the dry contact is connected. Its coil is
energized. The dry contact can drive resistive loads of no more than 125VAC /1A, 30VDC/1A. According to
different battery types of the inverter charger, the default values of the dry contact ON (DON) voltage and the dry
contact OFF (DOF) voltage are different. Please refer to the chapter
3.5 Settings
> item
19 DON
and item
20 DOF
for details.
③
RS485 interface
（
DB9 female
）
DB9 pin definition for RTU-type IC-24/48 series:
Pin
Definition
Pin
Definition
1-2
NC
6
NC
3
+12VDC
7
RS485-A
4
GND2(+12VDC power ground)
8
RS485-B
5
GND1(+5VDC power ground)
9
+5VDC
DB9 pin definition for other type IC-24/48 series:
Pin
Definition
Pin
Definition
1-4
NC
7
RS485-A
5
GND
8
RS485-B
6
NC
9
+5VDC
