CT th fault code meaning
CT / th
Series: Commander CDE/CDLE
th 9
AC drive
Meaning: Motor thermal resistor trip
Possible causes
Source: CT Control Techniques Commander CDE/CDLE User Guide 9 Trip codes P9-1–9-2
Series: Commander GP
th 24
AC drive
Meaning: The motor thermistor has detected excessive motor temperature (or the thermistor or wiring is open-circuit).
Possible causes
Source: CT Control Techniques Commander GP User Guide E.3 Trip codes P E-1–E-3
Series: Commander SE
th 24
AC drive
Meaning: Over temperature (Motor thermistor) | Excessive motor temperature
Possible causes
Source: CT Control Techniques Commander SE User Guide 8.1 Trip codes P65-67
Series: Vector
Motor thermistor
AC drive
Meaning: Motor thermistor (thermal switch) impedance high due to sensing excessive temperature.
Possible causes
Source: