description of parameters vacon • 59
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7
ID509 ID510
ID511 ID512
ID513 ID514
NX12K33
Reference [Hz]
Output
frequency [Hz]
509 Prohibit frequency area 1; Low limit
(2.5.1)
510 Prohibit frequency area 1; High limit
(2.5.2)
511 Prohibit frequency area 2; Low limit
(2.5.3)
512 Prohibit frequency area 2; High limit
(2.5.4)
513 Prohibit frequency area 3; Low limit
(2.5.5)
514 Prohibit frequency area 3; High limit
(2.5.6)
In some systems it may be necessary to avoid certain frequencies because of
mechanical resonance problems. With
these parameters it is possible to set
limits for the "skip frequency" region.
See Figure 21.
Figure 21. Example of prohibit frequency area
setting.
515 DC-braking frequency at stop
(2.4.10)
The output frequency at which the DC-braking is applied. See Figure 21.
516 DC-braking time at start
(2.4.11)
DC-brake is activated when the start command is given. This parameter defines the time
before the brake is released. After the brake is released, the output frequency increases
according to the set start function by parameter ID505.
518 Acceleration/deceleration ramp speed scaling ratio
between prohibit frequency limits
(2.5.3, 2.5.7)
Defines the acceleration/deceleration time when the output frequency is between the
selected prohibit frequency range limits (parameters ID509 and ID510). The ramping
speed (selected acceleration/ deceleration time 1 or 2) is multiplied with this factor. E.g.
value 0.1 makes the acceleration time 10 times shorter than outside the prohibit
frequency range limits.
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