10 Fault messages10.1 Acknowledge fault message (Reset)154 DE1… Variable Speed Starter 11/16 MN040011EN www.eaton.comIf the DE1... variable speed starter has an internal communication fault (CPUfault), the green Run LED will turn off and the Status and Fault Code LEDswill both show a continuous red light. → If this occurs, this means that theDE1 variable speed starter is faulty and must be replaced.10.1 Acknowledge fault message (Reset)Fault messages can be reset as follows:• By switching off the supply voltage and switching it back on• By switching off the enable signal and switching it back on (FWD, REV,ENA)• By pressing the STOP button if using an external keypad (DX-KEY-…)• Via connections such as Modbus RTU, SmartWire-DT,PC (drivesConnect)10.2 Fault logThe most recent fault messages will be saved in the order in which theyoccur (with the most recent one appearing first) and in parameter P-13.The fault memory (P-13) can be read with:• The optional external keypad (DX-KEY-…)• The drivesConnect parameter software• Modbus RTU,• SmartWire-DT,• CANopen – with DE11-…→ The default setting for the DE1... variable speed starter is Auto-0(P-30).This means that, once a fault is fixed, the device will not berestarted automatically, but must be reset instead. In this case,a rising edge is not required for the enable signal. The enablesignal (DI1 or DI2) can be linked to 10 V.→ The fault memory cannot be cleared. It will retain its informationeven if the device’s default settings are restored.→ When using the DX-KEY-LED keypad, it will only be possible toview the most recent fault and the three faults that preceded it.