TBB power MPPT, User Manual, Page: 10 / 36

MPPT charge controller User Manual
4
2.2.2 Connection compartment
External interface terminal as shown in Figure 2-2.
Figure 2-2 Connection terminals
Table 2-3 Connection terminal introduction
Silk-screen Definition
PV
+ Connection terminal for PV array Positive
- Connection terminal for PV array Negative
BAT
+ Connection terminal for Battery Positive
- Connection terminal for Battery Negative
EPO EPO contacts, defined for remote on/off.
NC
Output dry contacts. C
NO
RS485 Connection terminal for RS485 communication.
Temp. Sensor Connection terminal for battery temperature sensor.
Table 2-4 Pin definition of Temp. Sensor
Pin Definition
Pin1 Battery Positive
Pin2 Battery Negative
Pin3 Temperature sensor
Pin4 Battery Negative
Table 2-5 Pin definition of RS485 communication port
Pin Definition
Pin1
Pin2
Pin3 RS485_A
Pin4
Pin5
Pin6 RS485_B
Pin7
Pin8