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Motor components
3.1
Thermal motor protection
The thermal motor protection is available in three versions:
Standard protection:
Full protection (option):
Universal protection (op-
tion):
The stator core has two temperature sensors to monitor the winding; one of these is a
reserve.
Note
Temperature sensors of the same type are always installed in one particular motor.
The type of temperature sensor installed is stamped on the rating plate.
1FE1 synchronous built-in motors
Hardware Installation Manual, 12/2016, 610.43000.40b
Temperature sensors (2x KTY 84-130 or 2x Pt1000)
Temperature sensors + PTC thermistor triplet (3 sensors in se-
ries) (2x KTY 84-130 or Pt1000 + 1x PTC180 C)
see Chapter "Temperature evaluation using the PTC thermistor
triplet (full motor protection, option) (Page 114)"
Temperature sensors + PTC thermistor triplet + NTC thermistor
(2x KTY 84-130 or Pt1000 + 1x PTC180 C + NTC PT3-51F +
NTC K227/33k/A1)
see Chapter "Temperature evaluation using NTC thermistors
(universal protection, option) (Page 113)"
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