Danfoss VACON 100 FLOW Series Application Manual page 217

VACON® 100 FLOW
Application Guide
Selec- Selection
tion name
number
0
Positive
1
Actual direc-
tion
2
Follow refer-
ence
11.9 Prohibit Frequencies
11.9.1 The Prohibit Frequencies Function
In some processes, it can be necessary to avoid some frequencies because they make problems of mechanical resonance. With the
Prohibit frequencies function, it is possible to prevent the usage of these frequencies. When the input frequency reference increa-
ses, the internal frequency reference stays at the low limit, until the input frequency reference is above the high limit.
11.9.2 (ID 509) Prohibit Frequency Range 1 Low Limit
Location in the menu: P3.7.1
Use this parameter to prevent the drive operating on the prohibited frequencies.
In some processes, it can be necessary to avoid some frequencies because they cause mechanical resonance.
11.9.3 (ID 510) Prohibit Frequency Range 1 High Limit
Location in the menu: P3.7.2
Use this parameter to prevent the drive operating on the prohibited frequencies. In some processes, it can be necessary to avoid
some frequencies because they cause mechanical resonance.
11.9.4 (ID 511) Prohibit Frequency Range 2 Low Limit
Location in the menu: P3.7.3
Use this parameter to prevent the drive operating on the prohibited frequencies. In some processes, it can be necessary to avoid
some frequencies because they cause mechanical resonance.
11.9.5 (ID 512) Prohibit Frequency Range 2 High Limit
Location in the menu: P3.7.4
Use this parameter to prevent the drive operating on the prohibited frequencies. In some processes, it can be necessary to avoid
some frequencies because they cause mechanical resonance.
11.9.6 (ID 513) Prohibit Frequency Range 3 Low Limit
Location in the menu: P3.7.5
Use this parameter to prevent the drive operating on the prohibited frequencies. In some processes, it can be necessary to avoid
some frequencies because they cause mechanical resonance.
11.9.7 (ID 514) Prohibit Frequency Range 3 High Limit
Location in the menu: P3.7.6
Use this parameter to prevent the drive operating on the prohibited frequencies. In some processes, it can be necessary to avoid
some frequencies because they cause mechanical resonance.
Danfoss A/S © 2023.08
Description
The sign of the actual is always positive.
The running direction is visible from the status word bit 2. A TRUE value corresponds to reversing
actual speed.
The sign of the actual follows the running direction. Forward is positive, reverse is negative.
A TRUE value for status word bit 2 indicates if the direction of the actual differs from the direction
requested from FB control commands.
A negative sign of the actual indicates if the direction of the actual differs from the direction re-
quested from FB control commands.
The status word bit 2 corresponds to the direction requested from FB control commands. A TRUE
value corresponds to requested reversing.
Parameter Descriptions
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