4-21 Speed Limit Factor Source Option
Option:
Function:
Select an analog input for scaling the
settings in par. 4-19 from 0% to 100%
(or vice versa). The signal levels
corresponding to 0% and 100% are
defined in the analog input scaling,
such as par. group 6-1*, for example.
This parameter is only active when
par. 1-00
Configuration Mode
is in
Torque Mode
.
[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
3.6.2 4-3* Motor Feedback Monitoring
The par. group includes monitoring and handling of motor
feedback devices as encoders, resolvers, etc.
4-30 Motor Feedback Loss Function
Option:
Function:
Select which reaction the adjustable
frequency drive should take if a
feedback fault is detected. The
selected action is to take place when
the feedback signal differs from the
output speed where its range is
specified in
during its time frame set
in
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 Set-up 1
[8]
Select Set-up 2
[9]
Select Set-up 3
[10]
Select Set-up 4
[11]
stop & trip
4-31 Motor Feedback Speed Error
Range:
Function:
300 RPM
*
[1 - 600 RPM] Select the max. allowed tracking error
in speed from the calculated and the
actual mechanical shaft output speeds.
4-32 Motor Feedback Loss Timeout
Range:
Function:
0.05 s
*
[0.00 - 60.00 s] Set the timeout value allowing the speed
to be exceeded.
4-34 Tracking Error Function
Option:
Function:
Select which reaction the adjustable frequency
drive should take if a tracking error is detected.
Closed-loop: The tracking error is measured
between the output from the ramp generator
and the speed feedback (filtered).
Open-loop: The tracking error is measured
between the output from the ramp generator -
compensated for slip - and the frequency that is
sent to the motor (16-13).
The reaction will be activated if the measured
difference is more than specified in par. 4-35 for
the time specified in par. 4-36.
A tracking error in closed-loop does not imply
that there is a problem with the feedback signal!
A tracking error can be the result of torque limit
for loads that are too big.
[0]
*
Disable
[1]
Warning
[2]
Trip
[3]
Trip after
stop
Parameter Descriptions
FC 300 Programming Guide
3-44
MG.33.MA.22 - VLT
®
is a registered Danfoss trademark
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