The DB4610/4310 controller is a variable‑frequency constant‑pressure water supply unit that can manage multiple pumps, support fire‑pump inspection, sleep mode, and Modbus communication. It offers flexible pump configuration, pressure‑time scheduling, and extensive alarm functions.
This manual covers technical specifications, installation steps, terminal wiring, operation‑panel functions, trial‑run procedures, detailed parameter tables, fault diagnosis, and electrical schematics. It also includes wiring diagrams for one‑to‑two, one‑to‑three, and one‑to‑six pump configurations. This manual is written in Chinese.
| Input voltage range | AC220V ±15% |
|---|---|
| Rated frequency | 50/60 Hz |
| Rated power consumption | 5 W (approx.) |
| Relay contact capacity | 3 A/250 V AC or 3 A/30 V DC |
| Operating temperature | -10 °C to 70 °C |
| Weight | 1.3 kg |
It can control up to six main pumps plus one small pump for the DB4610 version, or three main pumps plus one small pump for the DB4310 version.
The controller provides RS‑485 communication with the standard Modbus protocol for connection to a host computer.
The controller can alarm for over‑pressure, low water level, sensor disconnection, inverter fault, and other fault conditions.