4-30 Motor Feedback Loss Function
Option:
Function:
[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 is active as soon as the value in
is exceeded, regardless of the setting
of
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
Range:
Function:
300 RPM
*
[1 - 600 RPM] Select the max 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
4-32 Motor Feedback Loss Timeout
Range:
Function:
0.05 s
*
[0.00 - 60.00 s] Set the timeout value allowing the
speed error set in
to be exceeded.
4-34 Tracking Error Function
Option:
Function:
Select which reaction the should take if a
tracking error is detected.
4-34 Tracking Error Function
Option:
Function:
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 Frequency
).
The reaction will be activated if the measured
difference is more than specified in
for the time specified in
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 at too big loads.
[0]
*
Disable
[1]
Warning
[2]
Trip
[3]
Trip after
stop
Warning/Alarm 78 Tracking Error is related to the Tracking
Error Function.
4-35 Tracking Error
Range:
Function:
10 RPM
*
[1 - 600
RPM]
Enter the maximum permissible speed
error between the motor speed and the
output of the ramp when not ramping. In
open loop the motor speed is estimated
and in closed loop it is the feedback from
encoder/resolver.
4-36 Tracking Error Timeout
Range:
Function:
1.00 s
*
[0.00 - 60.00
s]
Enter the time-out period during which
an error greater than the value set in
is permissible.
4-37 Tracking Error Ramping
Range:
Function:
100 RPM
*
[1 - 600
RPM]
Enter the maximum permissible speed
error between the motor speed and the
output of the ramp when ramping. In
open loop the motor speed is estimated
and in closed loop it is the feedback
from encoder/resolver.
4-38 Tracking Error Ramping Timeout
Range:
Function:
1.00 s
*
[0.00 - 60.00
s]
Enter the time-out period during which
an error greater than the value set in
while
Ramping is permissible.
Parameter Descriptions
VLT
®
AutomationDrive Programmming Guide
68
MG33ME02 - VLT
®
is a registered Danfoss trademark
3
3
