Danfoss FC 300

4-17 Torque Limit Generator Mode
Range: Function:
100.0 %
*
[0.0 - Variable Limit
%]
Sets the torque limit for generator mode operation. The torque
limit is active in the speed range up to the rated motor speed
(par. 1-25). See illustration for par. 4-16 as well as par. 14-25
for further details.
4-18 Current Limit
Range: Function:
160.0 %
*
[0.0 - Variable Limit
%]
Sets the current limit for motor operation. To protect the motor
from reaching the stalling torque, the default setting is 1.6 x the
rated motor torque (calculated value). If a setting in par. 1-00
to par. 1-26 is changed, par. 4-16 to par. 4-18 are not auto-
matically reset to the default settings.
To obtain maximum output torque and prevent the motor from
stalling, it is recommendable
not to set par. 4-18 lower than par.
4-16 and 4-17 (Torque Limits)
4-19 Max Output Frequency
Range: Function:
132.0
Hz
*
[0.0 - 1000.0 Hz] Provides a final limit on the drive output frequency for improved
safety in applications where you want to avoid accidental over-
speeding. This limit is final in all configurations (independent of
the setting in par. 1-00).
NB!
Max. output frequency cannot exceed 10% of the inverter switching frequency (par.
14-01).
Par. 4-19 cannot be adjusted while the motor is running.
4-20 Torque Limit Factor SourceOption
Option: Function:
Select an analog input for scaling the settings in par. 4-16 and
4-17 from 0% to 100% (or inverse). The signal levels corre-
sponding to 0% and 100% are defined in the analog input
scaling, e.g. par. group 6-1*. This parameter is only active when
par. 1-00
Configuration Mode is in Speed Open Loop or Speed
Closed Loop
.
[0]
*
No function
[2] Analog input 53
[4] Analog input 53 inv
[6] Analog input 54
[8] Analog input 54 inv
[10] Analog input X30-11
[12] Analog input X30-11
inv
[14] Analog input X30-12
2. How to Programme FC 300 Programming Guide
88 MG.33.M2.02 - VLT
®
is a registered Danfoss trademark
2