Parameter Details
12
12.4 d: REFERENCE
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual 595
When you input a frequency reference that is the same as or near the Jump frequency width, the frequency
reference changes automatically.
The drive accelerates or decelerates the motor smoothly until the frequency reference is not in the range of the
Jump frequency band. The drive will use the active accel/decel time to go through the specified dead band range.
If the frequency reference is not in the range of the Jump frequency band, switch to constant speed operation.
Figure 12.56 Jump Frequency
Note:
• When you set Jump Frequencies 1 to 3, make sure that the parameters do not overlap.
• When the drive is in the range of the Jump frequency, the frequency reference changes automatically. When Jump is executed, the
output frequency changes smoothly as specified by the values set in C1-01 [Accel Time 1] and C1-02 [Decel Time 1].
■ d3-01 Jump Frequency 1
No.
(Hex.)
Name Description
Default
(Range)
d3-01
(0294)
Jump Frequency 1
Sets the median value of the frequency band that the drive will avoid.
0.0 Hz
(Determined by A1-02)
Note:
Set this parameter to 0.0 Hz to disable the Jump frequency.
■ d3-02 Jump Frequency 2
No.
(Hex.)
Name Description
Default
(Range)
d3-02
(0295)
Jump Frequency 2
Sets the median value of the frequency band that the drive will avoid.
0.0 Hz
(Determined by A1-02)
Note:
Set this parameter to 0.0 Hz to disable the Jump frequency.
■ d3-03 Jump Frequency 3
No.
(Hex.)
Name Description
Default
(Range)
d3-03
(0296)
Jump Frequency 3
Sets the median value of the frequency band that the drive will avoid.
0.0 Hz
(Determined by A1-02)
Note:
Set this parameter to 0.0 Hz to disable the Jump frequency.
■ d3-04 Jump Frequency Width
No.
(Hex.)
Name Description
Default
(Range)
d3-04
(0297)
Jump Frequency Width
Sets the width of the frequency band that the drive will avoid.
1.0 Hz
(Determined by A1-02)
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