FC 300 Design Guide
How to Program
" Parameters: Limits/Warnings
" 4-1* Motor Limits
4-10 Motor Speed Direction
Option:
Clockwise [0]
Counterclockwise [1]
Both directions [2]
Function:
Prevents undesired reverse. Furthermore, the
maximum output speed is selected regardless of
other parameter settings. It is not possible to set
this parameter while the m otor is running.
4-11 Motor Spe e d Low Limit [R PM]
Range:
0-par. 4-13RPM
*
0RPM
Function:
It is possible to have the Minimum Motor Speed
Limit correspond to t he minimum motor speed.
Minimum speed cannot exceed the maximum speed
in par. 4-13. If "Both directions" is selected in
par. 4-10, minimum speed is not used.
4-13 Motor S peed High Limit [RPM]
Range:
Par. 4-11 - Variable Limit RPM
*
3600 RPM
Function:
It is possible to have the maximum motor speed
correspond to the highest motor speed.
4-16 Torque Limit Motor Mode
Range:
0.0-VariableLimit%
*
160.0 %
Function:
Sets the torque limit for motor operation. The
torque limit is active in the speed range up to
the rated m otor speed (par. 1-25). To protect
the m otor from rea ching 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 4-18 are not
automatically reset to the default set tings.
Changing par. 4-16 Torque Limit Motor
Mode whe n par. 1-00 is set to SPEED OPEN
LOOP [0], par. 1-66 Min Current at Low
Speed is automatically readjusted. If par. 2-21 >
par. 2-36, a potential risk for m otor stalling occurs.
4-17 Torque Limit Gene rat or Mode
Range:
0.0-VariableLimit%
*
160.0 %
Function:
Sets the torque limit for generator mode operation.
The torque l imit is active in the speed range up to
the rated motor spe ed (par. 1-2 5). See illustration
forpar. 4-16aswellaspar. 14-25forfurtherdetails.
4-18 Current Limit
Range:
0.0-VariableLimit%
*
160.0 %
Function:
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
automatically reset to the default settings.
4-19 Max Output Frequency
Option:
0.0 - H z
*
132.0 Hz
Function:
Provides a final limit on the drive output frequency
for imp roved safety in applications whe
re it is
necessary to avoid accidental overspeeding. T h is
limit is final in all configurations (in dep endent
of the setting in par. 1-00).
" 4-5* Adj. Warnings
Warnings are shown on display, programmed
output or serial bus.
*
default setting ()display text []value for use in communication via serial communication port
163
MG.33.B
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