Title: 32 Pumper modbuss teknisk data.pdf.pdf
17. Grundfos alarm and warning codes This is a complete list of alarm and warning codes for Grundfos products. For the codes supported by this product, see the alarms and warnings section. Code Description Code Description1Leakage current36Outlet valve leakage2Missing phase37Inlet valve leakage3External fault signal38Vent valve defective4Too many restarts39Valve stuck or defective5Regenerative braking40Undervoltage6Mains fault41Undervoltage transient7Too many hardware shutdowns42Cut-in fault (dV/dt)8PWM switching frequency reduced439Phase sequence reversal4410Communication fault, pump45Voltage asymmetry11Water-in-oil fault (motor oil)4612Time for service (general service information)4713Moisture alarm, analog48Overload14Electronic DC-link protection activated (ERP)49Overcurrent (i_line, i_dc, i_mo)15Communication fault, main system (SCADA)50Motor-protection function, general shutdown (MPF)