Vacon NX Series Applications Manual page 215

PARAMETER DESCRIPTIONS
Table 110: Preset speeds 1 to 7
Speed
Basic speed
Preset speed 1 (ID105)
Preset speed 2 (ID106)
Preset speed 3 (ID126)
Preset speed 4 (ID127)
Preset speed 5 (ID128)
Preset speed 6 (ID129)
Preset speed 7 (ID130)
See also parameters ID105 and ID106.
Parameter value is automatically limited to maximum frequency (ID102).
131 I/O FREQUENCY REFERENCE SELECTION, PLACE B3 (2.1.12)
Use this parameter to select the reference source when the control place is I/O B.
See the values of the parameter ID117 above.
132 PID CONTROLLER D-TIME 57 (2.1.14)
Use this parameter to adjust the derivation time of the PID controller.
If this parameter is set to 1.00 second a change of 10% in the error value during 1.00 s
causes the controller output to change by 10.00%. If the parameter value is set to 0.00 s the
PID controller will operate as PI controller.
See examples below.
EXAMPLE 1:
In order to reduce the error value to zero, with the given values, the AC drive output behaves
as follows:
Given values:
P2.1.12, P = 0%
P2.1.13, I-time = 1.00 s
P2.1.14, D-time = 0.00 sMin freq. = 0 Hz
Error value (setpoint – process value) = 10.00%Max freq. = 50 Hz
In this example, the PID controller operates practically as I-controller only.
LOCAL CONTACTS: HTTP://DRIVES.DANFOSS.COM/DANFOSS-DRIVES/LOCAL-CONTACTS/
DIN4/ID419 DIN5/ID420
0
1
0
1
0
1
0
1
DIN6/ID421
0 0
0 0
1 0
1 0
0 1
0 1
1 1
1 1
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