Synchronous motors in CFC control mode

Technically speaking, these are synchronous motors with permanent magnets on the rotor and an integrated encoder. The mass moment of inertia of the synchronous motor is lower than that of the asynchronous motor. For this reason, these motors are optimally suited to applications requiring dynamic speeds.

Do not configure the maximum speed higher than the rated speed of the motor.

SEW-EURODRIVE recommends a PWM frequency of 8 kHz or 16 kHz for the following motors:

  • CMP40/..50/..63 for speeds above 4500 min-1
  • CMP71/..80/..100 for speeds above 3000 min-1
  • CM3C63/..71/..80/..100 for speeds above 3000 min-1

SEW‑EURODRIVE recommends using the following temperature sensors:

  • KTY84 – 130 (SEW‑EURODRIVE designation: KY)
  • Pt1000 (SEW-EURODRIVE designation: PK)