Improve armar7 platform movement

source/RobotAPI/components/units/RobotUnit/NJointControllers/NJointHolonomicPlatformVelocityControllerWithRamp.cpp

@@ -140,7 +140,7 @@ namespace armarx
         float oriFactor = std::abs(delta(2)) / maxOrientationAcceleration / dt;
         factor = std::max(factor, oriFactor);
 
-        if (factor < 0)
+        if (factor < 1)
         {
             throw LocalException("Error factor negative!");
         }