NB!
Any changes in par. 4-13 will reset the value in par. 4-53
Warning High Speed
to the same value as set in par. 4-13.
4-14 Motor Speed High Limit [Hz]
Range:
Function:
Size related
*
[0 - 1000 Hz]
Enter the maximum limit for motor speed. The Motor Speed High Limit can be set to correspond to the
manufacturer’s recommended 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 par. 4-12 will be displayed depending on
other parameters set in the Main Menu and depending 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:
110 %
*
[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 Delay 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.
4-18 Current Limit
Range:
Function:
110 %
*
[1 to 1000 %]
Enter the current limit for motor and generator operation. To protect the motor from reaching the stalling torque,
the default setting is 1.1 x the rated motor current (set in par. 1-24). If a setting in par. 1-00 to par. 1-26 is
changed, par. 4-16 to par. 4-18 are not automatically reset to the default settings.
4-19 Max Output Frequency
Range:
Function:
0 Hz
*
[1 - 120 Hz]
Enter the maximum output frequency value. Par. 4-19 specifies the absolute limit on the frequency converter
output frequency for improved safety in applications where accidental overspeeding must be avoided. This ab-
solute limit applies to all configurations and is independent of the setting in par. 1-00. This parameter cannot be
adjusted while the motor is running.
3.6.3. 4-5* Adj. Warnings
Define adjustable warning limits for current, speed, reference and feedback.
VLT
®
HVAC Drive Programming Guide
3. Parameter Description
MG.11.C5.02 - VLT
®
is a registered Danfoss trademark
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3