diff --git a/docs/G306.txt b/docs/G306.txt
index dfce071..7054c97 100644
--- a/docs/G306.txt
+++ b/docs/G306.txt
@@ -1258,8 +1258,8 @@
 		"title": "PWM占空比",
 		"desc": "",
 		"type": "int",
-		"cur": 30,
-		"default": 30,
+		"cur": 15,
+		"default": 15,
 		"size": 4,
 		"range": {
 			"min": 1,