User Manual Chapter 7 - Parameters Description 79
F.011 Motorpot offset (Motorpotentiometer offset)
Giving the RUN command, the motor will rich automatically the frequency set (offset) following the ramp time.
The Motorpot up command will be effect starting from this value, which represent the frequency minimum value
attainable by Morotpot down command.
For further detail see also the section Reference Limits in this chapter.
F.012 Mp output mode (Motorpotentiometer output mode)
It defines positive and/or negative settings of the Motorpotentiometer reference value.
In either setting the HW Reverse command is active (when enabled).
F.013 Mp auto save (Motorpotentiometer auto save)
Enabling this function will cause the Motorpot reference to be continuously saved into non-volatile memory. At
power on, the reference will start from the last saved value.
Disabling this function will cause the Motorpot reference to be always zero after power-on.
Saving drive parameters by command C.000 (or S.901) will not save the Motorpot ref value.
Code Name [Code] & Function. Default MIN MAX Unit Variation IPA
F.000 Motorpot ref 0 0 F.020 Hz 0.01 300
F.010 Acc/Dec time mp 10 0.1 999.9 sec 0.1 301
F.011 Motorpot offset 0 0 50 Hz 0.1 302
F.012 Mp output mode [0] Unipolar 0 0 1 303
[1] Bipolar
F.013 Mp auto save [0] Disable 1 0 1 304
[1] Enable
Reference Limits
F.020 Max ref freq (Maximun reference frequency)
It is the maximum speed for both directions.
This parameter applies to the sum of the different reference value available on the drive (Reference 1 and
Reference 2).
F.021 Min ref freq (Mimimun reference frequency)
It defines the minimum frequency value, under which any regulation with analog or digital references has no
effect.
The START of the motor will be carried out (with the ramp delay) at this frequency value also with null
reference.
As described in the following figure, this behaviour is correlated also to the setting of Min output freq (P.081).
F out
Max output freq (P.080)
Max ref freq (F.020)
Min ref freq (F.021)
Set frequency
Min output freq (P.081)
(A)
(B)
Figure 7.5.2: Min & Max Reference Frequency