RZC2000 variable frequency constant pressure water supply controller

Rated Operating Voltage

AC220V±10%

Product Model

RZC2000

Function

1.Supports three operating modes: cyclic soft start, fixed single-pump variable frequency, and upper/lower limit control.
    2. Timed automatic pump switching and deactivation functions allow unused pumps to be set to exit the cycle.
    3. Features variable frequency drive fault shutdown and low-water signal shutdown, supporting automatic pump switching upon failure input for all four pumps.
    4. Three start-up modes: auto-start on power-up, terminal start, and panel start.
    5. Manual mode supports single-pump operation and debugging. Keys F1–F4 control pumps 1–4 respectively.
    6. External remote pressure gauges and sensors can be selected and switched via parameter P20.
    7. Supports time-of-day pressure-regulated water supply control with up to six time periods configurable.
    8. Sleep mode conserves energy by stopping pumps during non-usage periods; increases speed and adds pumps when water demand rises.
    9. Upper limit pressure protection automatically stops pumps upon overpressure and restarts when pressure returns to normal.
   10. Flexible switching between pressure transmitter and remote pressure gauge signals; includes pressure transmitter disconnection detection.
   11. Precise PID response and acceleration/deceleration time control streamline on-site commissioning for users.

Cooling method

750W and below: air-cooled Above 750W: forced air cooling

Environment

Place of Use

Areas free of water droplets, steam, corrosion, flammable substances, dust, and metal particles

Temperature

-20℃～60℃

Relative humidity

<95%