Mitsubishi Electric 800 Series Instruction Manual (Function page 295

• When the set frequency decreases and falls within the jump range, the upper limit of the jump range is the set frequency.
When the set frequency increases and falls within the jump range, the lower limit of the jump range is the set frequency.
Pr.36
Pr.35
Pr.33
Pr.34
Pr.32
Pr.31
0
NOTE
• During acceleration/deceleration, the frequency within the set area is valid.
• If the setting ranges of individual groups (1A and 1B, 2A and 2B, 3A and 3B) overlap, Parameter write error (Er1) occurs.
• Setting Pr.552 = "0" disables frequency jumps.
• If a jump frequency that exceeds the setting of Pr.1 (Pr.18) Maximum frequency is set for the 3-point frequency jump, the
maximum frequency setting is the set frequency. If the jump frequency is less than the setting of Pr.2 Minimum frequency,
the jump frequency is the set frequency. (The set frequency can be equal to or less than the frequency lower limit.)
Example with 6-point frequency jump
Output frequency
Maximum
frequency
Parameters referred to
Pr.1 Maximum frequency, Pr.2 Minimum frequency, Pr.18 High speed maximum
294
12. (H) Protective Function Parameters
12.9 Avoiding machine resonance points (frequency jump)
Jump range
Pr.552
Jump range
Pr.552
Input set frequency
Pr.552
Pr.552
0 Set frequency
Maximum frequency and frequency jump
Set frequency after
frequency jump
Pr.32
Pr.31
0
Input set frequency
Output frequency
Minimum
frequency
0 Set frequency
Minimum frequency and frequency jump
frequencypage 292
Pr.552 Jump range
Pr.552
Pr.552
Pr.552