diff --git a/site_ansto/instrument/tas/config/motors/motor_configuration.tcl b/site_ansto/instrument/tas/config/motors/motor_configuration.tcl
index 78a4d249..483f5dbb 100644
--- a/site_ansto/instrument/tas/config/motors/motor_configuration.tcl
+++ b/site_ansto/instrument/tas/config/motors/motor_configuration.tcl
@@ -206,7 +206,7 @@ Motor a2 $motor_driver_type [params \
   maxDecel 0.2\
   stepsPerX 125000\
   absEnc 1\
-  absEncHome 12825228\
+  absEncHome 16806029\
   cntsPerX -93206.7556]
 a2 part detector
 a2 long_name a2
@@ -348,7 +348,7 @@ Motor s2 $motor_driver_type [params \
   maxDecel 0.2\
   stepsPerX 125000\
   absEnc 1\
-  absEncHome 13291801\
+  absEncHome 15392805\
   cntsPerX -93206.7556]
 s2 part sample 
 s2 long_name s2