ASFIFF12 High Speed
vacon • 35
24-hour s358 (0)40 837 1150 • Email: [email protected]
ID509
ID510
ID511
ID512
ID513
ID514
NX12K33
Reference [Hz]
Output
frequency [Hz]
509
Prohibit frequency area 1; Low limit 234567
(2.5.1)
510
Prohibit frequency area 1; High limit 234567
(2.5.2)
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 5-16.
Figure 5-16. 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 5-16.
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
518
Acceleration/deceleration ramp speed scaling ratio
between prohibit frequency limits
(2.5.3)
Defines the acceleration/deceleration time when the output frequency is between the
selected prohibit frequency range limits (parameters
). 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.