MP 1, SQE-NE, SPA-NE, SP-NE - SCL Water

CommunicationSubmersible pumpsSQE-NEAlarm indicationThe CU 300 offers the following alarm indications.Alarm Description The pump will be restarted automaticallyNo contactNo contact/communication between the CU 300 and theSQE-NE pump.–Note: This alarm does not affect pump operation.Overvoltage The supply voltage exceeds the limit value. when the voltage is within the specified range.Undervoltage The supply voltage is below the limit value. when the voltage is within the specified range.Dry runningBenefits of CU 300/R100The dry-running protection of the pump has been activated.after 5 minutes (default), or a period set with theR100.Speed reductionThe motor speed is reduced.Note: The speed is resumed when the cause has been –remedied or has disappeared.Overtemperature The motor temperature exceeds the limit value. when the motor electronics has cooled sufficiently.Overloadafter 5 minutes (default), or a period set with theThe current consumption of the motor exceeds the value set.R100.Sensor alarmSensor alarm may be caused by the following:The measured value has dropped outside the measuringrange set.The sensor is defective.The sensor output setting made via the R100 is incorrect.after 5 minutes (default), or a period with the R100.Alarm Description The following items are no longer requiredNo contactProvides knowledge of contact between the SQE-NE pumpand the CU 300.–Overvoltage The supply voltage is measured. Overvoltage relay.Undervoltage The supply voltage is measured. Undervoltage relay.Dry running Provides dry-running protection of the pump. Level relay, electrodes, cables.Speed reductionEnsures pump operation at a moderate undervoltage andoverload, thereby ensuring that the motor is not overloaded.Urgent need for service.The pump is stopped at a critical temperature. Once theOvertemperaturemotor electronics has cooled sufficiently, the motor will restart –automatically.Overload Provides overload protection of the motor. Motor starter.Sensor alarmSensors can be connected directly to the CU 300.The sensor signals are monitored.External control unit.29