Danfoss VLT FC 100 Series Programming Manual page 61

®
VLT HVAC Drive Programming Guide
NB!
Any changes in par. 4-13 will reset the value in par. 4-53
4-14 Motor Speed High Limit [Hz]
Range:
*
Size related [0 - 1000 Hz]
NB!
Max. output frequency cannot exceed 10% of the inverter switching frequency (par. 14-01).
4-16 Torque Limit Motor Mode
Range:
*
110.0 % [0.0 - Variable Limit %]
4-17 Torque Limit Generator Mode
Range:
*
110 % [0 - 1000 %]
4-18 Current Limit
Range:
*
110 % [1 to 1000 %]
4-19 Max Output Frequency
Range:
*
0 Hz [1 - 120 Hz]
3.6.3. 4-5* Adj. Warnings
Define adjustable warning limits for current, speed, reference and feedback.
Warning High Speed
Function:
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]
other parameters set in the Main Menu and depending on default settings dependant on global geographical
location.
Function:
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
stalling torque, the default setting is 1.1 x the rated motor torque (calculated value). See also par. 14-25
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.
Function:
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
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.
Function:
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.
Function:
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.
MG.11.C5.02 - VLT ® is a registered Danfoss trademark
3. Parameter Description
to the same value as set in par. 4-13.
. Only par. 4-11 or par. 4-12 will be displayed depending on
Motor Nominal Speed . To protect the motor from reaching the
Trip Delay at Torque Limit
3
Trip
for further
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