Danfoss VLT AutomationDrive FC 301 Programming Manual page 82

Parameter Descriptions
4-24 Brake Check Limit Factor
Range:
98 [0 -
% 100 %
*
]
3 3
4-25 Power Limit Motor Factor Source
Select the input that scales the value in parameter 4-82 Power
Limit Motor Mode from 0% to 100%.
Option:
[0]
*
[2]
[4]
[6]
[8]
[10]
[12]
[14]
[16]
4-26 Power Limit Gener. Factor Source
Select the input that scales the value in parameter 4-83 Power
Limit Generator Mode from 0% to 100%.
Option:
[0]
*
[2]
[4]
[6]
[8]
[10]
[12]
[14]
[16]
80
Function:
Enter the limit factor that parameter 2-15 Brake
Check uses when performing the brake check. The
frequency converter uses the limit factor
depending on the selection in
parameter 4-23 Brake Check Limit Factor Source:
[0] DC-link voltage - the frequency converter
applies the factor to the EEPROM data in the DC-
link.
[1] Analog Input 53 or [2] Analog Input 54 - the
brake check fails if the input current on the analog
input is lower than the maximum input current
multiplied by the limit factor.
For example, in the following configuration the
brake check fails if the input current is lower than
16 mA:
•
A current transducer with a range of
4-20 mA is connected to analog input 53.
•
Parameter 4-24 Brake Check Limit Factor is
set to 80%.
No function
Analog in 53
Analog in 53 inv
Analog in 54
Analog in 54 inv
Analog in X30-11
Analog in X30-11 inv
Analog in X30-12
Analog in X30-12 inv
No function
Analog in 53
Analog in 53 inv
Analog in 54
Analog in 54 inv
Analog in X30-11
Analog in X30-11 inv
Analog in X30-12
Analog in X30-12 inv
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®
VLT AutomationDrive FC 301/302
3.5.2 4-3* Motor Feedback Monitoring
The parameter group includes monitoring and handling of
motor feedback devices, such as encoders, resolvers, and
so on.
4-30 Motor Feedback Loss Function
Option:
[0] Disabled
[1] Warning
[2] Trip
*
[3] Jog
[4] Freeze Output
[5] Max Speed
Function:
[6] Switch to Open
Loop
[7] Select Setup 1
[8] Select Setup 2
[9] Select Setup 3
[10] Select Setup 4
[11] stop & trip
Warning 90, Feedback monitor is active as soon as the value
in parameter 4-31 Motor Feedback Speed Error is exceeded,
regardless of the setting in parameter 4-32 Motor Feedback
Loss Timeout. Warning/Alarm 61, Feedback Error is related to
the motor feedback loss function.
4-31 Motor Feedback Speed Error
Function: Range:
300 RPM
Function:
This function is used to monitor
consistency in the feedback signal, that is
if the feedback signal is available.
Select which action the frequency
converter should take if a feedback fault
is detected. The selected action is to take
place when the feedback signal differs
from the output speed by the value set in
parameter 4-31 Motor Feedback Speed Error
for longer than the value set in
parameter 4-32 Motor Feedback Loss
Timeout.
Function:
[1 - 600 RPM] Select the maximum allowed error in
*
speed (output speed vs. feedback).
MG33MO02