Sofarsolar HYD KTL-3PH Series - Page 32

HYD 5-20KTL-3PH User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd。
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Table 4-10 Interface description
PIN
Definition
Function
Note
1
RS485A1-1
RS485 differential signal +
Wired monitoring or inverter
cascade monitoring
2
RS485A1-2
RS485 differential signal +
3
RS485B1-1
RS485 differential signal –
4
RS485B1-2
RS485 differential signal –
5
RS485A2
RS485 differential signal +
Communicate with electricity
meters
6
RS485B2
RS485 differential signal -
7
CAN0_H
CAN high data
Communication with lithium
battery BMS, the inverter CAN be
adaptive to lithium battery BMS to
provide CAN communication and
RS485 communication
8
CAN0_L
CAN low data
9
GND.S
BMS communication GND
10
485TX0+
RS485 differential signal +
11
485TX0-
RS485 differential signal -
12
GND.S
Signal GND
Sampling battery temperature
13
BAT_Temp
Battery temperature sampling
14
DCT1
Dry Contact1
Providing electrical switching
function
15
DCT2
Dry Contact2
16
VCC
Communication VCC
12V power supply
PIN5 and PIN6 are used for meter communication, the electricity meter is
shown in the fig.4-11①, PIN5 and PIN6 correspond to 24,25 respectively on the
electricity meter, as shown in fig.4-11
③.
The connection mode is shown in fig.4-11②. The 2,5,8 and 10 on the
electricity meter are connected to voltage signals A,B,C and N respectively.
And the current needs to be connected through the current transformer,1,3
correspond to the A-phase current transformer, 4,6 correspond to the B-phase, 7,9
correspond to the C-phase.
NOTE:The direction of the current transformer is shown in fig.4-11
④.
Fig.4-11 Meter