What to do if the Grundfos MP 1 / Redi-Flo2 heatsink is over temperature?
If the Grundfos Water Pump drive is too hot, ensure the ambient temperature around it is within the specified limits. Verify that cooling air can circulate freely, and increase panel ventilation if needed. Make sure the bottom entry and top exit vents are not blocked.
Why is there an under voltage on the DC bus of my Grundfos MP 1 / Redi-Flo2 Water Pump?
If your Grundfos Water Pump shows an under voltage on the DC bus, it could be due to a low incoming supply voltage. This often happens when the power is disconnected. However, if it occurs while running, check the incoming power supply voltage and all components in the power feed line to the drive.
What causes an output over current in a Grundfos MP 1 / Redi-Flo2?
If your Grundfos Water Pump displays an output over current error, it indicates an instantaneous over current on the drive output, often caused by excess load or shock load on the motor.
What does motor thermal overload (I2t) mean on a Grundfos Water Pump?
If the Grundfos Water Pump drive reports a motor thermal overload, it means the drive has been delivering more than 100% of the value in P-08* for an extended period to protect the motor from damage.
How to fix an autotune fault on a Grundfos Water Pump?
If your Grundfos Water Pump indicates an autotune fault, check the motor cable and connections for continuity. Also, ensure all three phases of the motor are present and balanced, as the motor parameters measured through the autotune may not be correct.
What to do if there is over voltage on DC bus in Grundfos MP 1 / Redi-Flo2 Water Pump?
If your Grundfos Water Pump has tripped due to over voltage on the DC bus, verify that the supply voltage is within the drive's allowed tolerance. If the fault occurs during deceleration or stopping, increase the deceleration time in P-04* or install a suitable brake resistor and activate the dynamic braking function with P-34*.
What does brake resistor overload mean for Grundfos MP 1 / Redi-Flo2 Water Pump?
If your Grundfos Water Pump shows a brake resistor overload, it means the drive has tripped to prevent damage to the brake resistor.
What causes an external trip in a Grundfos MP 1 / Redi-Flo2?
If your Grundfos Water Pump experiences an external trip, and a motor thermistor is connected, check if the motor is overheating. This trip typically occurs when a normally closed contact has opened.
What to do if the drive internal temperature is too high in Grundfos MP 1 / Redi-Flo2 Water Pump?
If your Grundfos Water Pump reports a drive internal temperature that is too high, check that adequate cooling air is provided, as the drive ambient temperature may be too high.
How to troubleshoot Modbus comms loss fault in Grundfos MP 1 / Redi-Flo2 Water Pump?
If your Grundfos Water Pump shows a Modbus comms loss fault, check the incoming Modbus RTU connection cable. Ensure that at least one register is being polled cyclically within the timeout limit set in P-36 Index 3*.
General| Brand | Grundfos |
|---|---|
| Model | MP 1 / Redi-Flo2 |
| Category | Water Pump |
| Language | English |
Details the intended uses and limitations for purging and sampling contaminated groundwater.
Notes that the pumping system is not explosion-proof and advises consulting local authorities.
Emphasizes the need for personal safety equipment when pumping hazardous material.
Outlines warranty coverage for installations adhering to instructions and codes of practice.
Advises caution when handling motor cables and electrical connections, following local regulations.
Specifies that only uncontaminated pumps can be returned for servicing.
Details how the pump is cleaned and packaged after production to ensure cleanliness.
States the converter should be handled carefully as sensitive electronic equipment.
Specifies storage temperature range and cleaning requirements before storing the pump.
Specifies storage temperature range for the converter in a clean and dry area.
Provides instructions on pump assembly, positional requirements, and valve installation considerations.
Specifies minimum and maximum borehole diameter requirements and use of cooling jackets.
Defines the maximum allowable dynamic water level during pump operation.
Procedure for checking and filling demineralised water in the motor before installation.
Details on connecting pipes or hoses to the pump's discharge port.
Instructions on how to lower the pump into the borehole without damaging the motor cable.
Specifies the necessary submersion depth for motor cooling and shaft seal lubrication.
Guidelines for placing the converter vertically to ensure air circulation and prevent water entry.
Explains the function of the three operational buttons on the converter keypad for pump control.
Details how to connect the pump's motor cable to the converter's power/motor cable safely.
Steps for starting the converter and setting the pump to the desired direction of rotation.
Instructions on adjusting pump speed using the converter's speed control button.
Guidance on adjusting pump speed and allowing it to stabilize before making further changes.
Highlights the importance of maintaining minimum flow for motor cooling and avoiding pump damage.
Procedure for safely switching off the converter before disconnecting the motor cable after use.
Presents performance curves showing flow rate versus head at different frequencies for the MP 1 pump.
Instructions for routine maintenance, including decontamination, cleaning, and replacement of wear parts.
Details service requirements, emphasizing that only uncontaminated pumps are accepted and certification is needed.
Provides a component breakdown and overview of the MP 1/Redi-Flo2 sampling pump system.
Step-by-step procedure for safely taking apart the pump and its components.
Instructions for inspecting dismantled pump parts for wear, corrosion, and fractures.
Detailed procedure for reassembling the pump, ensuring correct fitting of seals, impellers, and components.
Step-by-step guide for removing and installing a new motor cable for the pump.
Instructions on connecting the motor cable wires and securing the plugs correctly.
Procedure for shortening motor cables with individual lead sheaths, specifying lengths.
Fitting plug pins to the motor cable leads and securing them firmly.
Observing the pump shaft movement to verify the correct direction of rotation.
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