This manual provides detailed instructions on the use, installation and precautions of solar controller, including safety advice, scope of application, function features, controller panel diagram, wiring diagram, controller installation and use, LED lamp display instructions, mode introduction and setting table.
The manual begins with general safety recommendations, such as using a fuse on the battery line, keeping batteries away from sparks or open flame, and ensuring children stay clear of the device. It also defines the applicable range: the controller works with 12 V or 24 V solar systems and supports both lead‑acid and lithium‑iron‑phosphate batteries.
Installation instructions cover mounting, wiring length minimisation, correct polarity when connecting the battery, solar panel and load, and how to interpret the LED indicators. The document explains the three operating modes (household, pure light‑control, and light‑plus‑timer), how to set them using the keypad, and provides a full set of technical specifications for the controller. This manual is written in Chinese.
| System voltage | 12V/24V |
|---|---|
| System current | 15A/20A |
| No‑load loss | <10 mA |
| Solar input voltage | <55 V |
| Over‑voltage protection | 16.5 V; ×2/24V |
| Over‑voltage recovery | 15.0 V; ×2/24V |
| Balance‑charge voltage | 14.6 V; ×2/24V (25 ℃) |
| Float‑charge voltage | 13.8 V; ×2/24V (25 ℃) |
| Over‑discharge protection voltage | 11.1 V; ×2/24V |
| Overload protection | 1.25× rated current for 30 s, 1.5× for 10 s |
| Short‑circuit protection | ≥3× rated current |
| Operating temperature | -25 ℃ to +60 ℃ |
| Protection class | IP30 |
| Dimensions | 141.5 mm × 84 mm × 23.6 mm |
Connect the battery first, making sure the polarity is correct; if the polarity is reversed the controller’s indicator will not light, but the internal components will not be damaged.
Press and hold the button for more than 3 seconds; the display will flash and enter adjustment mode. Each press increments the displayed number until it matches the desired mode, then release the button to confirm.