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58
[1.3 SETTINGS]
(SEt-)
Code
Name/Description
Adjustment range
Factory setting
JPF
• [Skip Freq.]
0 to 500 or 1,000 Hz
according to rating
0 Hz
Skip frequency. This parameter prevents prolonged operation within an adjustable range around the regulated
frequency. This function can be used to prevent a critical speed, which would cause resonance, being reached.
Setting the function to 0 renders it inactive.
JF2
• [Skip Freq. 2]
0 to 500 or 1,000 Hz
according to rating
0 Hz
2
nd
skip frequency. This parameter prevents prolonged operation within an adjustable range around the
regulated frequency. This function can be used to prevent a critical speed, which would cause resonance,
being reached. Setting the function to 0 renders it inactive.
JF3
• [3rd Skip Frequency]
0 to 500 or 1,000 Hz
according to rating
0 Hz
3
rd
skip frequency. This parameter prevents prolonged operation within an adjustable range around the
regulated frequency. This function can be used to prevent a critical speed, which would cause resonance,
being reached. Setting the function to 0 renders it inactive.
JFH
• [Skip.Freq.Hysteresis]
0.1 to 10 Hz
1 Hz
Skip frequency range: between (JPF – JFH) and (JPF + JFH), for example.
This adjustment is common to all 3 frequencies (JPF, JF2 and JF3).
LUn
• [Unld.Thr.Nom.Speed]
20 to 100%
60%
*
See page
191
.
Underload threshold at rated motor frequency (
[Rated motor freq.]
(FrS)
page
33
), as a % of the rated
motor torque.
LUL
• [Unld.Thr.0.Speed]
0 to
[Unld.Thr.Nom.Speed]
(LUn)
0%
*
See page
191
.
Underload threshold at zero frequency, as a % of the rated motor torque.
rMUd
• [Unld. Freq.Thr. Det.]
0 to 500 or 1,000 Hz
according to rating
0 Hz
*
See page
191
.
Underload detection minimum frequency threshold
Srb
• [Hysteresis Freq.Att.]
0.3 to 500 or 1,000 Hz
according to rating
0.3 Hz
*
See pages
191
and
192
.
Maximum deviation between the frequency reference and the motor frequency, which defines steady
state operation.
FtU
• [Underload T.B.Rest.]
0 to 6 min
0 min
*
See page
191
.
Minimum time permitted between an underload being detected and any automatic restart.
In order for an automatic restart to be possible, the value of
[Max. restart time]
(tAr)
page
175
must exceed
that of this parameter by at least one minute.
*
These parameters only appear if the corresponding function has been selected in another menu. When the parameters can
also be accessed and adjusted from within the configuration menu for the corresponding function, their description is detailed
in these menus, on the pages indicated, to aid programming.
Содержание ER40-G
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