Danfoss VLT AutomationDrive FC 302 Programming Manual page 77

Parameter Descriptions
NOTICE
The torque limit reacts on the actual, non-filtrated
torque, including torque spikes. This is not the torque
that is seen from the LCP or the Fieldbus as that is
filtered.
4-17 Torque Limit Generator Mode
Range: Function:
100 % [ 0 - 1000.0 %] This function limits the torque on the
*
shaft to protect the mechanical instal-
lation.
NOTICE
The torque limit reacts on the actual, non-filtrated
torque, including torque spikes. This is not the torque
that is seen from the LCP or the Fieldbus as that is
filtered.
4-18 Current Limit
Range: Function:
Size [ 1.0 - This is a true current limit function that
related 1000.0 %] continues in the oversynchronous range,
*
however due to field weakening the
motor torque at current limit will drop
accordingly when the voltage increase
stops above the synchronised speed of
the motor.
4-19 Max Output Frequency
Range: Function:
NOTICE
Size [1 -
related 590
*
This parameter cannot be adjusted
Hz]
while the motor is running.
NOTICE
Max. output frequency cannot exceed
10% of the inverter switching frequency
(parameter 14-01 Switching Frequency).
Provides a final limit on the 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 parameter 1-00 Configuration
Mode).
4-20 Torque Limit Factor Source
Option: Function:
Select an analog input for scaling the
settings in parameter 4-16 Torque Limit
Motor Mode and parameter 4-17 Torque
Limit Generator Mode from 0% to 100%
(or inverse). The signal levels
®
VLT AutomationDrive FC 301/302 Programming Guide
4-20 Torque Limit Factor Source
Option:
[0] No function
*
[2] Analog in 53
[4] Analog in 53 inv
[6] Analog in 54
[8] Analog in 54 inv
[10] Analog in
X30-11
[12] Analog in
X30-11 inv
[14] Analog in
X30-12
[16] Analog in
X30-12 inv
4-21 Speed Limit Factor SourceOption
Option:
[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
[16] Analog input
X30-12 inv
MG33MI02 - Rev. 2013-11-20
Function:
corresponding to 0% and 100% are
defined in the analog input scaling, e.g.
parameter group 6-1* Analog Input 1.
This parameter is only active when
parameter 1-00 Configuration Mode is in
Speed Open Loop or Speed Closed Loop.
Function:
Select an analog input for scaling the
settings in parameter 4-19 Max Output
Frequency from 0% to 100% (or vice
versa). The signal levels corresponding
to 0% and 100% are defined in the
analog input scaling, e.g. parameter
group 6-1* Analog Input 1. This
parameter is only active when
parameter 1-00 Configuration Mode is in
Torque Mode.
3 3
75