Phoenix Contact CSS 1.5-1/3-EMC Handleiding (152 Pagina's)

Handleiding

Description of parameter settings

109908_en_02 Phoenix Contact 81 / 150

10.5.4 Carrier frequency

With the CONTACTRON Speed Starter, the carrier frequency on the output side can be

adapted. The device operates with a pulse width modulation. The default value is set to

4 kHz. This frequency can be heard during operation. To reduce the noise, the value can

be set to 8 kHz, 16 kHz, or “AUTO”.

A higher carrier frequency means a higher derating.

When the carrier frequency is set to “4000, 8000, 16000”, the frequency is fixed to the

set value.

When the carrier frequency is set to “AUTO”, the default setting is 16 kHz

(2 kHz ...16 kHz, depending on the rated current).

If the derating protection is activated, and the operation frequency is larger than the

derating curve (as shown in Figure 10-4 on page 82 and Figure 10-5 on page 82), the

rated current is constant and the carrier frequency output by the drive decreases

automatically according to the ambient temperature, overload output current, and

overload time.

Can be set during

operation

Clear text display Parameter name Setting range Default setting

- 4. PF - pulse frequency Carrier frequency 4000 Hz

8000 Hz

16000 Hz

AUTO (16 kHz, 2 kHz ... 16 kHz,

depending on the nominal current)

4000 Hz

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