imum rated motor speed. The Motor Speed High Limit must
exceed the setting in par. 4-11
Motor Speed Low Limit [RPM]
.
Only par. 4-11 or 4-12 will be displayed depending on other pa-
rameters set in the Main Menu and depending on default set-
tings dependant on global geographical location.
NB!
The output frequency value of the frequency converter must not exceed a value
higher than 1/10 of the switching frequency.
4-14 Motor Speed High Limit [Hz]
Range: Function:
Size re-
lated
*
[0 - 1000 Hz] Enter the maximum limit for motor speed. The Motor Speed
High Limit can be set to correspond to the manufacturer’s rec-
ommended maximum frequency of the motor shaft. The Motor
Speed High Limit must exceed the setting in par. 4-12
Motor
Speed Low Limit [Hz]
. Only par. 4-11 or 4-12 will be displayed
depending on other parameters set in the Main Menu and de-
pending on default settings dependant on global geographical
location.
NB!
Max. output frequency cannot exceed 10% of the inverter switching frequency (par.
14-01).
4-16 Torque Limit Motor Mode
Range: Function:
110.0 %
*
[0.0 - Variable Limit
%]
Enter the maximum torque limit for motor operation. The torque
limit is active in the speed range up to and including the rated
motor speed set in par. 1-25
Motor Nominal Speed
. To protect
the motor from reaching the stalling torque, the default setting
is 1.1 x the rated motor torque (calculated value). See also par.
14-25
Trip Delay at Torque Limit
for further details.
If a setting in par. 1-00 to par. 1-26 is changed, par. 4-16 is not
automatically reset to the default setting.
4-17 Torque Limit Generator Mode
Range: Function:
100 %
*
[0 - 1000 %] Enter the maximum torque limit for generator mode operation.
The torque limit is active in the speed range up to and including
the rated motor speed (par. 1-25). Refer to par. 14-25
Trip De-
lay at Torque Limit
for further details.
If a setting in par. 1-00 to par. 1-26 is changed, par. 4-17 is not
automatically reset to the default settings.
VLT
®
AQUA Drive Programming Guide 2. Parameter Description
MG.20.O2.02 - VLT
®
is a registered Danfoss trademark
71
2
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