diff --git a/Rs.Motion/GugaoPulse/GugaoPulseAxis.cs b/Rs.Motion/GugaoPulse/GugaoPulseAxis.cs
index c2afc87..0674c2c 100644
--- a/Rs.Motion/GugaoPulse/GugaoPulseAxis.cs
+++ b/Rs.Motion/GugaoPulse/GugaoPulseAxis.cs
@@ -899,7 +899,7 @@ namespace Rs.Motion.GugaoPulse
             {
                 GetPrfPosition(out currentPos);
             }
-            bIsArrived = (currentPos - m_dfCommandPosition) < 0.05;
+            bIsArrived = Math.Abs((currentPos - m_dfCommandPosition)) < 0.05;
             return ErrorCode.Ok;
         }