Chapter 11 SpecificationsRevision June 2010 11-911.4 Overload Characteristics Overload Protection FunctionOverload protection is a built-in protective function to prevent a motor from overheating. Occasion of Overload1. Motor was operated for several seconds under a torque exceeding 100% torque.2. Motor had driven high inertia machine and had accelerated and decelerated at highfrequency.3. Motor UVW cable or encoder cable was not connected correctly.4. Servo gain was not set properly and caused motor hunting.5. Motor holding brake was not released. Chart of load and operating timeLow Inertia Series (ECMA C2 Series)