Revise motorStep setting;

Framework/Common/Simulator/MotorSimulator.cs

@@ -117,7 +117,8 @@ namespace MECF.Framework.Common.Simulator
                 {
                     foreach (BeckhoffProviderAxis item in axisProviderCfg.Axes)
                     {
-                        _motorNameMinStepDic[item.Name] = (int)item.ScaleFactor / 30;
+                        double value = item.ScaleFactor / 30;
+                        _motorNameMinStepDic[item.Name] = (int)((value < 100) ? 100 : value);                        
                     }
                 }
             }