User manual

Chapter 5 Parameter Introductions

◆This function used to adjust FAR detection bandwidth, when the output frequency

reaches to the reference frequency. The adjusted range is from 0 to ±10.00 Hz of

reference frequency. If the inverter’s output frequency is within the detection width of

reference frequency, a pulse signal will be output, as shown in Fig. 5-3-8.

Detection width

Time

Reference

Freq.

Operating Freq.(Hz)

FAR signal

Fig. 5-3-8 FAR detection diagram

P3.19 Frequency detection

threshold (FDT)level

Range:

3004GB and the below models: 0.00～

650.0Hz【50.00

】

35R5GB/37R5PB and the above models:

0.00～400.0Hz【50.00

】

P3.20Frequency detection threshold

(FDT) lag

Range: 0.00～10.00Hz【1.00Hz】

Note:

◆When the output frequency reaches a certain preset frequency ( frequency detection

threshold), Y terminal output will be valid. We called the preset frequency FDT level.

In the dropping of output frequency, Y terminal output keep valid, until the output

frequency drops below another certain frequency of FDT level, which is called release

frequency (FDT1 level-FDT1 lag), as shown in Fig. 5-3-9.

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