Parameter descriptions
As a maximum, the acceleration and deceleration of the motorpoti function can only reach the values
of the frequency ramps (Parameters 420 to 423), even if
Ramp Frequency-Motorpoti 473 is set to a
higher value.
509 Ramp Percentage-Motorpoti
The speed of the modification of the reference value (ramp) can be set via parameter
Ramp Percent-
age-Motorpoti
509. The ramp is used in the following controls with the reference percentage chan-
nel:
− Motorpoti via digital inputs
− Keypad motorpoti (control via operator panel)
No. Description Min. Max. Fact. sett.
509 Ramp Percentage-Motorpoti 0.00 %/s 600.00 %/s 10.00 %/s
As a maximum, the speed of the reference value change reaches the value of
Gradient Percentage
Ramp
477, even if Ramp Percentage-Motorpoti 509 is set to a higher value.
7.5.3.3 Motor potentiometer via digital inputs
For the parameterization of the control of the motor potentiometer via digital inputs, it has to be
checked if the motor potentiometer is used as frequency reference value or percentage reference
value.
7.5.3.3.1 Control via reference frequency channel
62 Frequency Motorpoti Up
63 Frequency Motorpoti Down
The reference frequency of the drive can be set via digital control signals.
Via digital control inputs, the function "Motorpoti up" or "Motorpoti down" is triggered. Logic signals or
digital inputs must be assigned to the parameters
Frequency Motorpoti Up 62 or Frequency Motor-
poti Down
63.
− Command "Frequency motorpoti up": The reference frequency increases at the set value of
Ramp
Frequency-Motorpoti
473.
− Command "Frequency motorpoti down": The reference frequency decreases at the set value of
Ramp Frequency-Motorpoti 473.
Motor potentiometer via digital inputs
62
63
0 0 The reference frequency does not change.
1 0 The reference frequency increases at the set ramp.
0 1 The reference frequency decreases at the set ramp.
1 1
The reference frequency is reset to the value of
Minimum Frequency 418. If another reference fre-
quency source is selected via parameter
Reference
Frequency Source 1
475 or Reference Frequency
Source 2
492, the reference frequency is reset to
the value of this source.
0 = contact open 1 = contact closed
157
Reference Values 06/2013 Operating Instructions
Agile
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