CT rS fault code meaning
CT / rS
Series: Commander CDE/CDLE
rS 21
AC drive
Meaning: Stator resistance measurement failure
Possible causes
Source: CT Control Techniques Commander CDE/CDLE User Guide 9 Trip codes P9-1–9-2
Series: Commander GP
rS 33
AC drive
Meaning: Incorrect measurement of stator resistance
Possible causes
Source: CT Control Techniques Commander GP User Guide E.3 Trip codes P E-1–E-3
Series: Commander SE
rS 33
AC drive
Meaning: Stator resistance measurement failure | Motor cable disconnected during measurement; Motor too small for drive
Possible causes
Source: CT Control Techniques Commander SE User Guide 8.1 Trip codes P65-67