Mitsubishi Electric FR-F700PJ Series, Инструкция по эксплуатации

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102
Limiting the output frequency
4.5.2 Avoiding mechanical resonance points (frequency jumps) (Pr. 31 to Pr. 36, Pr. 552)
The above parameters can be set when Pr. 160
Extended function display selection
=
"
0
"
. (Refer to page 197)
.... Specifications differ according to the date assembled. Refer to page 346 to check the SERIAL number.
(1) Frequency jump (3-point jump) (Pr.31 to Pr.36)
(2) Frequency jump (6-point jump) (Pr.552)
When it is desired to avoid resonance attributable to the natural frequency of a mechanical system, these parameters
allow resonant frequencies to be jumped.
Parameter
Number
Name Initial Value Setting Range Description
31 Frequency jump 1A
9999 0 to 400Hz, 9999
1A to 1B, 2A to 2B, 3A to 3B are frequency jumps
(3-point jump)
9999: Function invalid
32 Frequency jump 1B
9999 0 to 400Hz, 9999
33 Frequency jump 2A
9999 0 to 400Hz, 9999
34 Frequency jump 2B
9999 0 to 400Hz, 9999
35 Frequency jump 3A
9999 0 to 400Hz, 9999
36 Frequency jump 3B
9999 0 to 400Hz, 9999
552
Frequency jump
range
9999 0 to 30Hz, 9999
Jump range for the frequency jump (6-point jump).
9999: 3-point jump
 Up to three areas may be set, with the jump frequencies set to
either the top or bottom point of each area.
 The value set to 1A, 2A or 3A is a jump point, and operation in
the jump zone is performed at these frequencies.
Example 1 To fix the frequency to 30Hz in the range of 30Hz to 35Hz, set 35Hz in Pr. 34
and 30Hz in Pr. 33 .
Example 2 To jump the frequency to 35Hz in the range of 30Hz to 35Hz, set 35Hz in Pr.
33 and 30Hz in Pr. 34 .
 The total of six jump areas can be set by setting the
common jump range for the frequencies set in Pr.31 to
Pr.36
.
 When frequency jump ranges overlap, the lower limit of
the lower jump range and the upper limit of the upper
jump range are used.
 When a frequency is set to a point within a jump range,
the set frequency is lowered or increased to the jump
range limits, according to the following frequency input
condition.
REMARKS
 During acceleration/deceleration, the running frequency within the set area is valid.
 If the setting ranges of individual groups (1A and 1B, 2A and 2B, 3A and 3B) overlap, Er1 (write disable error) will occur.
 Setting Pr.552 = "0" disables frequency jumps.
Pr. 31
Pr. 32
Pr. 33
Pr. 34
Pr. 35
Pr. 36
Frequency jump
Set frequency (Hz)
Pr. 34 : 35Hz
Pr. 33 : 30Hz
Pr. 33 : 35Hz
Pr. 34 : 30Hz
Pr.36
Pr.31
0
Pr.32
Pr.34
Pr.33
Pr.35
Set frequency after frequency jump
Input set frequency
Jump range
Jump range
Pr.552
Pr.552
Frequency input
condition
Set frequency after
frequency jump
When accelerating
The setting frequency is decreased to
the lower limit of the jump range.
When decelerating
The setting frequency is increased to
the upper limit of the jump range.