Regular maintenance of the ROC-2015 ensures longevity of the RO system.
Disclaimer: Always turn off the power supply before installing or servicing the controller to avoid electric shock.
Details regarding power input requirements (voltage/frequency), input/output (I/O) signal types (4-20mA, digital, etc.), operating temperatures, and environmental resistance ratings.
The controller uses five digital input (DI) ports and four output control ports to manage the RO system. Terminal ID Description Terminal Function Main Power Connect to 220V AC grid power. COM Common Point Common port for acquisition terminals or control relays. IV Inlet Valve Output contact for the water feeding solenoid valve. FV Flush Valve Output contact for the RO flushing solenoid valve. HP High Pressure roc-2015 controller manual pdf
The ROC-2015 is the standard low-cost controller for entry-level industrial RO units. It has found widespread application across several sectors of the water treatment industry.
Some of the key features of the ROC-2015 controller include:
AC 220V ± 10% (50Hz / 60Hz) or AC 110V (Model variant dependent) Environment Conditions Temperature: 0–50°C; Humidity: ≤ 85% RH Measurement Range Regular maintenance of the ROC-2015 ensures longevity of
If feed water pressure drops below safe levels, the Low-Pressure Switch trips. The controller stops the pump immediately to prevent dry-running damage, sounds an internal buzzer, and lights up the "Low Pressure" alarm LED. Conductivity Cell Calibration and Maintenance
: Allows for remote or panel-switched control.
Securing the official ROC-2015 manual is strongly recommended for a safe and efficient installation. The manual contains full safety instructions, detailed wiring diagrams, and complete operational parameters. Here’s how you can access the : The controller uses five digital input (DI) ports
The best source is the original manufacturer's documentation portal. Search for "[Manufacturer Name] ROC-2015 technical manual" or "ROC-2015 user guide PDF" on the official company website.
| Issue | Likely Cause(s) | Solution / Checkpoint | | :--- | :--- | :--- | | | EC terminal not connected, or switch state not correct | Check that the EC terminal is properly connected to provide a start signal. Verify the wiring and status of all terminal connections, ensuring they meet startup requirements. | | LOW PRESS light on at startup | No water pressure or sensor issue | Check the pressure switch and its wiring. Ensure water supply is present and the pressure switch contact is closed. | | HIGH PRESS light stays on | System is over-pressured or sensor faulty | Check if the system pressure is too high. Inspect the pressure switch and wiring for damage or an open circuit. | | System continues to run when tank is full | Full-level switch issue | Check the full-level (LC) switch and its wiring. The switch might not be closing, or the connection could be broken. | | Indicator is on, but the pump/valve is not working | Faulty contactor or wiring | Check the contactor for proper operation and inspect the wiring between the controller and the pump/valve for any damage or loose connections. |
Mount the unit vertically on a flat surface, panel, or 2-inch pipe stand.