•
•
Parameter 4-38 Tracking Error Ramping Timeout
Table 245: Parameter 4-38 Tracking Error Ramping Timeout
4-38 Tracking Error Ramping Timeout
Default value: 1 s
Parameter type: Range, 0 - 60 s
Setup: All setups
Conversion index: -2
Data type: Uint16
Change during operation: True
Enter the timeout period during which an error greater than the value set in
parameter 4-37 Tracking Error Ramping
while ramping is
allowed.
Parameter 4-39 Tracking Error After Ramping Timeout
Table 246: Parameter 4-39 Tracking Error After Ramping Timeout
4-39 Tracking Error After Ramping Timeout
Default value: 5 s
Parameter type: Range, 0 - 60 s
Setup: All setups
Conversion index: -2
Data type: Uint16
Change during operation: True
Enter the timeout period after ramping where
parameter 4-37 Tracking Error Ramping
and
parameter 4-38 Tracking Error Ramping
Timeout
are still active.
4.5.4 4-4* Speed Monitor
Parameter 4-43 Motor Speed Monitor Function
Table 247: Parameter 4-43 Motor Speed Monitor Function
4-43 Motor Speed Monitor Function
Default value: Size related
Parameter type: Option
Setup: All setups
Conversion index: –
Data type: Uint8
Change during operation: True
N O T I C E
This parameter is only available in the flux control principle.
Select how the drive reacts when the motor speed monitor-function detects overspeed or wrong rotation direction. When the mo-
tor speed monitor is active, the drive detects an error if the following conditions are true for a time period specified in
parameter
4-45 Motor Speed Monitor Timeout
:
The actual speed differs from the reference speed in
parameter 16-48 Speed Ref. After Ramp [RPM]
.
The difference between the speeds exceeds the value in
parameter 4-44 Motor Speed Monitor Max
.
In speed closed loop, the actual speed is the feedback from the encoder measured during the time defined in
parameter 7-06 Speed
PID Lowpass Filter Time
. In open loop, the actual speed is the estimated motor speed.
Speed
nRef
-nRef
0rpm
Time
e
3
0
b
e
1
9
9
.1
1
Illustration 50: Speed Reference and Maximum Allowed Speed Difference
AU373327181955en-000101 / 130R1208 | 131
Danfoss A/S © 2021.08
Parameter Descriptions
VLT® AutomationDrive EZ FC 321
Programming Guide
