Generally, there are two situations that will cause the power to turn off. The first is the activation of overload protection (OLP). To cope with this situation, we recommend increasing the output power rating or modifying the OLP value. The second is to activate over temperature protection (OTP) when the internal temperature reaches a preset value. All these conditions will cause the SPS to enter protected mode and shut down. After these conditions are eliminated, the SPS will return to normal.