What to do if the motor protection trips on my Grindex Water Pump?
If your Grindex Water Pump runs but the motor protection trips, it could be due to a few reasons. The motor protection might be set too low; in this case, set it according to the data plate and cable chart if applicable. Additionally, if the impeller is difficult to rotate by hand, clean the impeller and the sump, and ensure the impeller is properly trimmed.
Why does my Grindex Matador N Water Pump start and stop in rapid sequence?
If your Grindex Water Pump starts and stops rapidly, it could be due to back-flow causing the sump to refill to the start level. Ensure the distance between the start and stop levels is sufficient and that the non-return valves are functioning properly. Also, confirm that the length of the discharge pipe between the pump and the first non-return valve is sufficiently short. Alternatively, the self-holding function of the contactor may be malfunctioning. Check the contactor connections, the voltage in the control circuit in relation to the rated voltages on the coil, and the functioning of the stop-level regulator. Determine whether the voltage drop in the line at the starting surge causes the contactor's self-holding malfunction.
How to fix a Grindex Matador N with SMART[™] or softstarter that won't start?
If your Grindex Water Pump with SMART[™] or softstarter does not start, the phase sequence may be incorrect. To correct this: pull out the plug, then shift two phases by turning two contact pins with a screwdriver (do not take the plug apart), or turn the knob to the opposite position 1, with 8 seconds delay (do not reverse the phase sequence while the motor is running; doing so may cause incorrect rotation resulting in damages to the motor electronics and the rotating parts; respect the 8 seconds delay), or shift two phase conductors in the cabinet if no glove or phase shifter is used.
What to do if my Grindex Water Pump doesn't stop when using a level sensor?
If your Grindex Water Pump doesn't stop when a level sensor is used, it could be because the pump can't empty the sump to the stop level. Check for leaks from the piping and discharge connection, ensure the impeller isn't clogged, and verify that the non-return valves are functioning properly. Another reason could be a malfunction in the level-sensing equipment, so clean the level regulators, check their functioning, check the contactor and the control circuit, and replace any defective items. Lastly, the stop level might be set too low, so raise it.
Why is my Grindex Water Pump not delivering enough water?
If your Grindex Water Pump delivers too little or no water, several factors could be at play. The impeller might be rotating in the wrong direction; if it is a 3-phase pump without SMART™, transpose two phase leads, or if it has a softstarter, transpose the leads at T1, T2, T3 on the softstarter. For pumps with SMART™, correct the internal wiring. One or more valves might be incorrectly positioned, so reset them, replace if needed, and ensure they are correctly installed according to media flow and open correctly. Also, check for obstructions in the pipes and clean them to ensure free flow. Address any leaks in pipes and joints by sealing them. Inspect the impeller, pump, and casing for wear and replace worn parts. Ensure the liquid level isn't too low by checking the level sensor setting....
Why won't my Grindex Matador N Water Pump start?
If your Grindex Water Pump does not start, several issues could be the cause. An alarm signal might have been triggered on the control panel, so check that the impeller rotates freely, the sensor indicators do not indicate an alarm, and the overload protection is not tripped. The installation might not be receiving voltage; check that the main power switch is on, there is control voltage to the start equipment, the fuses are intact, there is voltage in all phases of the supply line, all fuses have power and are securely fastened, the overload protection is not tripped, and the motor cable is not damaged. The impeller could be stuck, so clean the impeller and the sump to prevent future clogs. If the pump does not start automatically but can be started manually, check that the start level re...
Purpose of this manual
Explains safety messages, terminology, and hazard levels.
Details hazard levels and their corresponding indications.
Identifies hazard categories and specific symbols.
Covers warranty coverage, limitations, claims, and spare parts.
Provides general safety rules for users and lists required safety equipment.
Details requirements for electrical connections.
Addresses handling hazardous liquids and first aid for exposure.
Outlines specific safety requirements for MSHA permissibility.
Specifies safety measures for service, repairs, fastenings, and cables.
Covers environmental safety, waste management, and recycling guidelines.
Instructions for inspecting the delivery package and the unit upon receipt.
Covers safe transportation, positioning, fastening, and lifting procedures.
Details temperature ranges for handling, transport, and storage to prevent damage.
Provides guidelines for proper storage location and long-term storage.
Lists the pump models included in the product range.
Describes the submersible pump design and its intended applications.
Specifies the particle handling capability and pressure classes.
Explains the function of integrated monitoring equipment and thermal contacts.
Details the information found on the pump's data plate and warning plate.
Shows the MSHA approval plate information.
Provides safety precautions and general steps for installing the pump.
Recommends minimum velocities for discharge lines to prevent sedimentation.
Specifies that discharge lines must not have sharp bends.
Warns about using correct fasteners and tightening them properly.
Details steps for connecting discharge lines and lowering the pump.
Covers general precautions, electrical hazards, and requirements for electrical installation.
Details requirements for installing cables, including bending radius and voltage drop.
Explains the necessity and methods for proper earthing of electrical equipment.
Provides instructions and cautions for connecting the motor cable to the pump.
Details connection locations, cable charts, and color code standards.
Lists color codes for motor leads and their descriptions.
Illustrates stator lead and thermal contact connections to the terminal plate.
Shows connection diagrams for motor cables and various starter units.
Provides specific cable connection details for the MSHA version.
Details how to check impeller rotation when the pump lacks built-in motor protection.
Explains how to check phase sequence for pumps with built-in motor protection.
Lists crucial precautions and warnings before operating the pump.
Advises on safety distances and noise level considerations during operation.
Provides safety warnings and steps for starting the pump.
Reinforces warnings about unit stability and hot liquids during startup.
Details how to clean the pump after operation in dirty water.
Highlights safety precautions, including electrical lockout and unit cooling.
Outlines essential tasks for maintenance and reassembly, including lubrication.
Provides torque specifications for stainless steel and steel screws and nuts.
Defines inspection and major overhaul intervals based on service type.
Lists specific items to check during pump inspection, such as visible parts and impeller.
Describes checking oil, replacing mechanical seals, and inspecting cable entry.
Details checks for inspection volume, cable condition, cooling systems, and sensors.
Covers maintenance checks for starter equipment and stator insulation resistance.
Lists actions for major overhaul, including bearing and seal replacement.
Provides steps for safely draining and refilling the pump with oil.
Details how to refill the pump with oil and check the oil level.
Covers the process of removing the impeller, including safety warnings.
Describes preparing the shaft and installing the impeller with proper lubrication.
Introduces troubleshooting safety guidelines and required tools.
Addresses causes and remedies for pumps not starting with SMART or softstarter.
Lists causes and remedies for the pump failing to start automatically.
Diagnoses issues when the pump fails to stop correctly with a level sensor.
Explains causes and solutions for the pump starting and stopping repeatedly.
Covers scenarios where the pump runs but the motor protection trips.
Addresses causes and remedies for insufficient or no water output from the pump.
Troubleshoots issues related to impeller direction and valve positions.
Covers problems with clogged pipes, leaks, wear, and low liquid levels.
Details troubleshooting for pumps not starting when using a softstarter.
Explains softstarter potentiometer functions, LED status, and alarm signals.
Provides checks for various LED indicator statuses on the control panel.
Specifies operating limits for temperature, pH, density, and immersion depth.
Details motor type, frequency, supply, starting methods, and compliance.
Lists rated current, starting current, and power factor for 50 Hz motors.
Lists rated current, starting current, and power factor for 60 Hz motors.
Provides motor data specifically for the MSHA version at 60 Hz.
States that all measurements are in millimeters unless specified otherwise.
Shows dimensional drawings and weights for standard N and H pump versions.
Presents dimensions for MSHA versions and performance curves for standard versions.
Displays performance curves (head, power, efficiency) for 50 Hz pumps.
Displays performance curves (head, power, efficiency) for 60 Hz pumps.
Displays performance curves (head, power, efficiency) for MSHA 60 Hz pumps.
General| Protection class | IP 68 |
|---|---|
| Type | Submersible sludge pump |
| Frequency | 50 Hz / 60 Hz |
| Discharge | 2" - 6" |
| Voltage | 220 - 690 V |
| Inlet Diameter | 2" - 6" |
| Outlet Diameter | 2" - 6" |
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