535290 4 Franklin Monodrivetroubleshoot Guide User Manual Monodrive Troubleshoot
User Manual: Pump 535290 4 Franklin Monodrivetroubleshoot Guide
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TROUBLESHOOTING QUICK REFERENCE GUIDE DIAGNOSTIC FAULT CODES NUMBER OF FLASHES FAULT - - Low line voltage - Misconnected input leads - Line voltage low, less than approximately 150 VAC (normal operating range = 190 to 260 VAC) - Check incoming power connections and correct or tighten if necessary - Correct incoming voltage - check circuit breaker or fuses, contact power company - Motor and/or pump misalignment - Dragging motor and/or pump - Abrasives in pump - Amperage above SFL at 10 Hz - Remove and repair or replace as required - MonoDrive only - Wrong resistance values on main and start - Wrong resistance on DC test at start - Check wiring, check motor size and DIP switch setting, adjust or repair as needed OPEN CIRCUIT - Loose connection - Defective motor or drop cable - Wrong motor - Open reading on DC test at start. - Check drop cable and motor resistance, tighten output connections, repair or replace as necessary, use “dry” motor to check drive functions, if drive will not run and exhibits underload fault replace drive SHORT CIRCUIT - When fault is indicated immediately after power-up, short circuit due to loose connection, defective cable, splice or motor - Amperage exceeded 50 amps on DC test at start or SF amps during running - Incorrect output wiring, phase to phase short, phase to ground short in wiring or motor - If fault is present after resetting and removing motor leads, replace drive - When fault is indicated while motor is running, over current due to loose debris trapped in pump - Check pump - High ambient temperature - Direct sunlight - Obstruction of airflow - Drive heat sink has exceeded max rated temperature, needs to drop below 85 °C to restart - Fan blocked or inoperable, ambient above 125 °F, direct sunlight, air flow blocked - Replace fan or relocate drive as neccessary - Improper pre-charge - Vavle closing too fast - Pressure setting too close to relief valve rating - Reset the pre-charge pressure to 70% of sensor setting. Reduce pressure setting well below relief valve rating. Use next size larger pressure tank. - Verify valve operation is within manufacturer’s specifications. - Reduce system pressure setting to a value less than pressure relief rating. - A fault was found internal to drive - Contact your Franklin Electric Service Personnel MOTOR UNDERLOAD 2 UNDERVOLTAGE 3 LOCKED PUMP (MonoDrive & MonoDriveXT only) 5 6 INCORRECTLY WIRED OVER CURRENT 7 OVERHEATED DRIVE 8 OVER PRESSURE (SubDrive300 only) RAPID CORRECTIVE ACTION - Overpumped well - Broken shaft or coupling - Blocked screen, worn pump - Air/gas locked pump - SubDrive not set properly for pump end 1 4 POSSIBLE CAUSE Frequency near maximum with less than 65% of expected load, 42% if DIP #3 is “on” System is drawing down to pump inlet (out of water) High static, light loading pump - reset DIP switch #3 to “on” for less sensitivity if not out of water Check pump rotation (SubDrive only) reconnect if necessary for proper rotation Air/gas locked pump - if possible, set deeper in well to reduce Verify DIP switches are set properly INTERNAL FAULT Power down, disconnect leads to the motor and power up the SubDrive: - If the SubDrive does not give an “open phase” fault (5 flashes every 2 seconds), then there is a problem with the SubDrive. - Connect the SubDrive to a dry motor. If the motor goes through DC test and gives “underload” fault (1 flash every 2 seconds), the SubDrive is working properly. TROUBLESHOOTING QUICK REFERENCE GUIDE SUBDRIVE TROUBLESHOOTING CONDITION INDICATOR LIGHTS NONE POSSIBLE CAUSE - No supply voltage present - If correct voltage is present, replace drive - Pressure sensor circuit - - Power surge, bad component - Power system down to clear fault, verify voltage, if repetitive, replace drive SOLID GREEN NO WATER SOLID RED OR SOLID RED AND GREEN FLASHING RED - Fault detected - Proceed to fault code description and remedy - Frequency max, amps low, check for closed valve, or stuck check valve Frequency max, amps high, check for hole in pipe Frequency max, amps erratic, check pump operation, dragging impellers This is not a drive problem Check all connections Disconnect power and allow well to recover for short time, then retry Correct pressure and placement as necessary Tank may be too small for system flow This is not a drive problem Disconnect power and check pressure gauge for pressure drop Set deeper in the well or tank; install a flow sleeve with airtight seal around drop pipe and cable If fluctuation is only on branches before sensor, flip DIP switch #4 to “on” (07C and newer) - Loose switch or cable connection - Gulping water at pump inlet FLASHING GREEN RUN ON WON’T SHUT DOWN FLASHING GREEN RUNS BUT TRIPS FLASHING RED - Pressure sensor placement and setting Pressure gauge placement Pressure tank size and pre-charge Leak in system Air entrainment into pump intake (lack of submergence) - - Pressure sensor placement and setting Tank pre-charge pressure Impeller damage Leaky system Sized improperly (pump can’t build enough head) - Check frequency at low flows, pressure setting may be too close to pump max head - Verify precharge at 70% if tank size is larger than minimum, increase precharge (up to 85%) - Verify that the system will build and hold pressure - Check fault code and see corrective action - Proceed to fault code description and remedy on reverse side - Adjust pressure sensor, check pump rotation - Check frequency at max flow, check max pressure LOW PRESSURE FLASHING GREEN - Pressure sensor setting, pump rotation, pump sizing HIGH PRESSURE FLASHING GREEN - Pressure sensor setting - Shorted sensor wire - Adjust pressure sensor - Remove sensor wire at PCB, if drive continues to run, replace drive - Verify condition of sensor wire and repair or replace if necessary - Fan, hydraulic, plumbing - - Ribbon cable detached from LED printed circuit board - Reattach cable - if cable is attached, replace drive AUDIBLE NOISE FLASHING GREEN NO LIGHTS NONE RFI-EMI INTERFERENCE FLASHING GREEN M1567 07-09 Verify water pressure is below system set point Jumper wires together at pressure sensor, if pump starts, replace sensor If pump doesn’t start, check sensor connection at printed circuit board (PCB), if loose, repair If pump doesn’t start, jumper sensor connection at PCB, if pump starts, replace wire If pump doesn’t start with sensor PCB connection jumpered, replace drive - Drive and motor are operating FLASHING GREEN PRESSURE FLUCTUATIONS (POOR REGULATION) CORRECTIVE ACTION - See interference troubleshooting procedure For excessive fan noise, replace fan If fan noise is normal, drive will need to be relocated to a more remote area If hydraulic, try raising or lowering depth of pump Pressure tank location should be at entrance of water line into house
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