update pwm_signal_testing.cpp

catkin_ws/src/asclinic_pkg/src/nodes/pwm_signal_testing.cpp

@@ -212,8 +212,8 @@ void timerCallbackForPublishing(const ros::TimerEvent&){
 	m_current_publisher.publish(msg);
 
 	std_msgs::Float32 msg2;
-	if(count <= 750){
-		msg2.data = 40.0;
+	if(count <= 600){
+		msg2.data = 20.0;
 	}else{
 		msg2.data = 0.0;
 	}