Speed Control; Permissible Operating Temperature - WÜRGES HV-Serie Montage- Und Betriebsanleitung

6.3. Speed Control

With our three-phase vibrating motors, the speed can be regulated with
frequency converters.
The output power of the frequency converter should be approx. 1.5 times the
rated motor power (P1 / Pin).
Please inquire about the maximum permissible final speed for each motor type.
The speed reduction, up to approx. 20 Hz, is problem-free in any case
possible.
If the speed is increased, the maximum centrifugal force
(see
(Force adjustment see page 75
The motors of the HF series require a frequency converter for power supply.
They can be operated with both a variable frequency and a fixed frequency.
When using a frequency converter, compliance with the EMC directive must be
observed.
In this case, we recommend using a shielded connection cable.

6.4. Permissible Operating Temperature

The temperature on the stator frame should not be higher than 80 ° C.
This limit can be exceeded if the current consumption is too high if the speed
specified on the nameplate is not reached. This can cause the winding to burn
out.
Possible cause is a centrifugal force that is too high for the application or an
insufficiently rigid construction.
By resetting the centrifugal force or using a device with more powerful
electric drive can help.
The ambient temperature must be between -20 ° C and up to + 40 ° C
(For some types up to + 55° C)
nameplate) must not be topped!
72
onwards)