1FW3 complete torque motors
Configuration Manual, 08/2020, A5E46027705B AA
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Motor components and options
4.1 Motor components
4.1.1 Thermal motor protection
Windings and bearings can be destroyed if the motor overheats. Further, if a motor
overheats, this can demagnetize the permanent magnets.
• Only operate the motors in conjunction with an effective temperature control.
Thermal motor protection with temperature sensors
The stator core has two temperature sensors to monitor the winding; one of these is a
reserve.
If you want to use the reserve temperature sensor, you must change the plug-in connection.
The plug-in connection is at motors with encoder with belt drive in the encoder box. At all
other motor versions the plug-in connection is in the terminal box. See the following pictures
to this.
Connected temperature sensor with plug-in connector
Reserve temperature sensor with plug-in connector
Figure 4-1 Example: Connection in the encoder box
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