diff -r 434d60dc9b12 -r 039ab094f79b slotUI/freeslot.py
--- a/slotUI/freeslot.py	Sat Dec 17 18:58:35 2011 +0100
+++ b/slotUI/freeslot.py	Sun Oct 28 10:41:39 2012 +0100
@@ -104,7 +104,7 @@
         if (carid < 0) or (carid > 5):
             return "ERR - invalid carid"
         cmd = -1
-        if command == "speed":
+        if command == "accel":
             cmd = 0
         if command == "brake":
             cmd = 1
@@ -114,6 +114,8 @@
             return "ERR - invalid command"
         if (value<0) or (value>15):
             return "ERR - invalid value"
+        if command == "accel" and value < 6:
+            return "ERR - value too low"
         # transform value 10..15 to A..F
         if (value>9):
             value = chr(ord("A") + (value-10))