Regulator for single-phase pump up to 30A

Single-phase controller for submersible well pumps, 140 V-280 V AC, 60 A, Tense

Item No.: MDK-02

Electrodes (liquid level sensors) not included.

This controller is designed to protect submersible well pumps from a range of potential issues that may occur during operation, such as voltage and current surges, lack of water in the well or borehole, and pump overload. The built-in functions also allow monitoring of tank fill levels, setting time delays for emergency situations, and adjusting peak currents.

Controller operating principle.

Read the "Important!" section before connecting the device. Connect the sensors and current transformer to the device according to the wiring diagram (fig. 1) and then connect the power. Verify that the factory-set parameters correspond to the pump operating parameters. If necessary, the following parameters can be changed:

(P1) - maximum allowable voltage value

(P2) - maximum allowable current value

(P3) - minimum allowable voltage value

(P4) - minimum allowable current value

(P5) - error response delay

(P6) - automatic reset time after current error

(P7) - current coefficient (multiplier) for the start interval

(P8) - start interval time

(P9) - number of automatic resets of a current error after which the device enters emergency mode and requires operator intervention

(P10) - upper sensor response delay time (longer time - the pump turns on fewer times - extends pump life)

After the first connection to power, the device waits 4 seconds, then analyzes the network parameters and their compliance with the set parameters and checks if there is water in the well. It checks if there is enough space in the storage tank in the well and if the controller is in "START" mode (lower green indicator on) (on), the control contacts turn on and the upper green "pump" indicator lights up. The display shows the current voltage and current values.

To enter this mode, press the START button.

To exit this mode, press the STOP button. In this mode, the device does not perform any adjustments and does not start the pump.

Parameter settings:

Press the MENU button to access the parameter setting menu. The first parameter page (P1) is displayed. The upper display shows the parameter number and the lower one its value. You can change parameter values by pressing the UP and DOWN buttons. Then press the MENU button to save the selected value or the RESET button to exit the menu. Note that pressing the RESET button does not save the parameter value shown on the display, but saves changes made to previous parameters. If no button is pressed for 50 seconds, the unit exits the menu without saving the parameter value shown on the display.

Important!!! Read this section before connecting the device:

- The submersible pump control unit must be connected according to the wiring diagram provided in the product datasheet.

- Ensure that the liquid to be pumped is not flammable or explosive.

- If using a system with two level sensors, the inputs of the upper and middle sensors must be connected.

- The temperature at the controller installation site must be above 0 °C.

- Never apply voltage to the controller inputs to connect the float switch.

- Ensure that the pump body is grounded to avoid damaging the pump controller.

Technical information:

Operating voltage: 140-280 VAC.

Frequency: 50 Hz

Current range: 0.5-60 A

Power consumption: <4 W

Liquid sensitivity: <50 kOhm

Protection class: IP40

Operating temperature range: -5 °C - +55 °C

Cable section: max. 1.5 mm2

Weight: 0.325 kg

Installation opening: 91 x 91