diff --git a/Manager/module.php b/Manager/module.php
index e09aacd..94c6335 100644
--- a/Manager/module.php
+++ b/Manager/module.php
@@ -453,7 +453,7 @@ class Manager extends IPSModule
                             'PowerSteps',
                             'InstanceID'
                         )[$userInstanceID])
-                        : max($positiveValues);
+                        : max($positiveValues)*-1;
 
                     // 3. minimalleistung = dieser Fallback
                     $minimalleistung = $fallbackMinimum;