diff --git a/fhem/FHEM/HMConfig.pm b/fhem/FHEM/HMConfig.pm
index e80854197..fe947101e 100644
--- a/fhem/FHEM/HMConfig.pm
+++ b/fhem/FHEM/HMConfig.pm
@@ -539,10 +539,10 @@ my $K_actDetID = '000000'; # id of actionDetector
 
   averaging       =>{a=>122.0,s=>1  ,l=>1,min=>1    ,max=>16    ,c=>''         ,f=>''      ,u=>'s'   ,d=>1,t=>"averaging period"},
   txMinDly        =>{a=>123.0,s=>0.7,l=>1,min=>0    ,max=>16    ,c=>''         ,f=>''      ,u=>'s'   ,d=>1,t=>"min transmit delay"},
-  txThrPwr        =>{a=>124.0,s=>3  ,l=>1,min=>0.01 ,max=>3680  ,c=>''         ,f=>100     ,u=>'W'   ,d=>1,t=>"threshold power"                      ,lit=>{unused=>0}},
-  txThrCur        =>{a=>127.0,s=>2  ,l=>1,min=>1    ,max=>16000 ,c=>''         ,f=>''      ,u=>'mA'  ,d=>1,t=>"threshold current"                    ,lit=>{unused=>0}},
-  txThrVlt        =>{a=>129.0,s=>2  ,l=>1,min=>0.1  ,max=>230   ,c=>''         ,f=>10      ,u=>'V'   ,d=>1,t=>"threshold voltage"                    ,lit=>{unused=>0}},
-  txThrFrq        =>{a=>131.0,s=>1  ,l=>1,min=>0.01 ,max=>2.55  ,c=>''         ,f=>100     ,u=>'Hz'  ,d=>1,t=>"threshold frequency"                  ,lit=>{unused=>0}},
+  txThrPwr        =>{a=>124.0,s=>3  ,l=>1,min=>0.00 ,max=>3680  ,c=>''         ,f=>100     ,u=>'W'   ,d=>1,t=>"threshold power"                      ,lit=>{unused=>0}},
+  txThrCur        =>{a=>127.0,s=>2  ,l=>1,min=>0    ,max=>16000 ,c=>''         ,f=>''      ,u=>'mA'  ,d=>1,t=>"threshold current"                    ,lit=>{unused=>0}},
+  txThrVlt        =>{a=>129.0,s=>2  ,l=>1,min=>0.0  ,max=>230   ,c=>''         ,f=>10      ,u=>'V'   ,d=>1,t=>"threshold voltage"                    ,lit=>{unused=>0}},
+  txThrFrq        =>{a=>131.0,s=>1  ,l=>1,min=>0.00 ,max=>2.55  ,c=>''         ,f=>100     ,u=>'Hz'  ,d=>1,t=>"threshold frequency"                  ,lit=>{unused=>0}},
 
   cndTxFalling    =>{a=>132.0,s=>0.1,l=>1,min=>0    ,max=>1     ,c=>'lit'      ,f=>''      ,u=>''    ,d=>1,t=>"trigger if falling"                            ,lit=>{off=>0,on=>1}},
   cndTxRising     =>{a=>132.1,s=>0.1,l=>1,min=>0    ,max=>1     ,c=>'lit'      ,f=>''      ,u=>''    ,d=>1,t=>"trigger if rising"                             ,lit=>{off=>0,on=>1}},