How is the work temperature dc motor controller

What is the normal work of the dc motor controller temperature, do you understand? Below small make up to answer for you. General - in 70Belongs to the normal work of the dc motor controller is between 90 ℃ temperature. As long as less than 130 ℃, generally do not have what problem, but really feel overheating, you need to drive the current set of motor controller is about 70% of the rated current, which lower the rotational speed of motor controller. If there is no failure, will be hot, but not the normal heating temperature is too high. Above all, do you know about whether the working temperature of dc motor controller.