3.2.9 System Wiring Diagram
Figure 9 System Wiring Diagram
NOTE:
1. The float switch is optional; if not use, please keep the terminal M6 and COM
short.
2. Low water level probe is optional; if not use, please keep the terminal M4 and
COM short.
In the case of conventional 250W polycrystalline components, the peak voltage is
30.6V and the open circuit voltage is 37V. Description of the number of input
components in series:
The PDS23Plus series controller is connected in series with the serial number of the
input components of the 18~20 block, and the 250W 500~700VDC (MPPT) is
satisfied.