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These parameters allow “jumping over” of certain frequencies that can cause unstable operation due to reso-

nance within certain applications.

Note: Prohibit any operation within the jump frequency range. During acceleration and deceleration the frequency is continu-

ous without skipping the jump frequency.

To enable jump frequency 1 – 3 (11-08 – 11-10) set the frequency to a value greater than 0.0 Hz.

Use the jump frequency width (11-11) to create a jump frequency range. Refer to gure 4.4.86.

Figure4.4.86Jumpfrequencyoperation

11-11

Output

Frequency

Reference

11-09

11-08

11-10

Jump frequency via Analog Input.

Set parameter 04-05 (AI2 function selection) to 9 (frequency jump setting 4) to control the jump frequency via

analog input AI2. Refer to Figure 4.4.48.

Note: When jump frequency overlap the sum of the overlapped jump frequencies will be used as the jump frequency range.

Refer to figure 4.4.87.

Figure4.4.87Jumpfrequencyoverlap

Actual jump width

Jump 1

Jump 2

Output

Frequency

Reference

Code Parameter Name / Range

11-13 Automatic return time

0~120 sec

If the keypad is not pressed within the time specied in 16-06 (returning time of automatic back button), the

keypad will automatically return to the mode screen.

When it is set to 0, the automatic return function is off. Press the back button to return to the previous directory.

Code Parameter Name / Range

11-12 Manual energy saving gain

0~100 %

11-18 Manual energy saving frequency

0.0~599.0 Hz

Manual energy savings reduces the output voltage for the purpose of saving energy.

To enable manual energy savings set one of the multi-function digital input (03-00 to 03-07) to 20 and activate

the input or use parameter 11-18 to set the manual energy savings activation frequency.

226 VDI100 • Instruction manual

gefran VDI100 Series User Manual

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