4-24 Brake Check Limit Factor
Range:
Function:
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%.
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:
Function:
[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
4-26 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:
Function:
[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
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:
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
4-30 Motor Feedback Loss Function
Option:
Function:
parameter 4-31 Motor Feedback Speed Error
for longer than the value set in
parameter 4-32 Motor Feedback Loss
Timeout
[0]
Disabled
[1]
Warning
[2]
Trip
[3]
Jog
[4]
Freeze Output
[5]
Max Speed
[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
Warning/Alarm 61, Feedback Error
is related to
the motor feedback loss function.
4-31 Motor Feedback Speed Error
Range:
Function:
300 RPM
*
[1 - 600 RPM] Select the maximum allowed error in
speed (output speed vs. feedback).
Time
[sec]
Speed
[rpm]
n
calc
n
actual
P 4-32
130BA221.10
P 4-31
Illustration 3.31 Motor Feedback Speed Error
4-32 Motor Feedback Loss Timeout
Range:
Function:
Size
related
*
[0 - 60
s]
Set the timeout value allowing the speed
error set in
to be exceeded before
Parameter Descriptions
VLT
®
AutomationDrive FC 301/302
90
Danfoss A/S © 10/2018 All rights reserved.
MG33MP02
3
3
Содержание VLT AutomationDrive FC 302
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