diff --git a/docs/G306.txt b/docs/G306.txt
index 0e382a6..3af20fa 100644
--- a/docs/G306.txt
+++ b/docs/G306.txt
@@ -1258,12 +1258,12 @@
 		"title": "PWM占空比",
 		"desc": "",
 		"type": "int",
-		"cur": 2,
-		"default": 2,
+		"cur": 5,
+		"default":5,
 		"size": 4,
 		"range": {
-			"min": 1,
-			"max": 100,
+			"min": 5,
+			"max": 80,
 			"step": 1
 		}
 	},