User Manual of Solar Intelligent Energy System (SIES)
TBB Power Confidential Page
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4.7.1 Connect the battery cable
Choose the right cable size (refer to 4.3) and follow polarity guide marked on the terminal block.
Open the door of Smart Box, Pull through the battery cables through the holes at front panel,
clamping the cable on terminal.
Secure the battery cable on BATT+ and BATT- terminals respectively making sure it is tightly
screwed.
4.7.2 Connect PV input
Each Solar Mate must be connected to its own PV array. Please find following maximum size of PV
array which can be supported according to various battery voltage.
Table 21 Recommended PV size
Battery Voltage
SP60-150
Recommended PV size
12Vdc
960W
24Vdc
1920W
48Vdc
3840W
The Voc (open circuit voltage) of PV array must never exceed 150Voc. The Isc
(short-circuit current) of PV array must not exceed the nominal current of Solar
Mate at any time.
The Voc or Vmpp (Maximum Power Point Voltage) of solar panel was rated at
25
℃
with normal weather condition. Along with temperature reduced, the Voc /
Vmpp of solar array will increase. Please consult with PV manufacturer for Voc /
Vmpp of the lowest possible environment temperature and making sure it is below
150Vdc.
PV array with Isc up to 55A is recommended for Solar Mate SP60-150 to tolerate the sudden
increase of Isc caused by irradiance enhancement under certain condition.
Please ensure the size of PV array matches the capacity of Solar Mate MPPT charge controller.
Following Table 23 and Table 23 are the recommended models and sizes of PV array.
