Description
AXIS#.VL.THRESH sets the user over-speed fault threshold. This threshold becomes the overall over-speed fault threshold (AXIS#.VL.VFTHRESH) if it is less than the motor speed threshold (1.2 x AXIS#.MOTOR.VMAX), and for AXIS#.MOTOR.TYPE = 6 if it is less than the motor back EMF overspeed threshold ((1.02 x 1000 x VBUS.OVFTHRESH) / (AXIS#.MOTOR.KE x sqrt(2))).
The value is considered an absolute value, hence it applies for both negative and positive velocities.
Example
AXIS#.VL.THRESH is set to 600 rpm. A velocity (AXIS#.VL.FB ) of 700 rpm will generate an over speed fault.
Versions
| Action | Version | Notes |
|---|---|---|
| Implemented | 02-00-00-000 |
General Information
|
Type |
Read/Write |
|
Units |
Rotary: RPM, RPS, deg/s, (custom units)/s, rad/s See Velocity Units for details. |
|
Range |
Depends on units. See Velocity Range for details. |
|
Default Value |
3,600 RPM Depends on units. See Velocity Units for details. |
|
Data Type |
Float |
|
Stored in Non-Volatile Memory |
Yes |
Variants Supported
All variants are supported.
Fieldbus Information
|
Command |
Index |
SubIndex |
Data Type |
Units |
Float Scale |
Access |
PDO Mappable |
|---|---|---|---|---|---|---|---|
|
AXIS1.VL.THRESH |
5011h |
08h |
Signed32 |
Velocity |
- |
Read/Write |
No |
|
AXIS2.VL.THRESH |
5111h |
08h |
Signed32 |
Velocity |
- |
Read/Write |
No |
|
ID |
Instance |
Attribute |
Name |
Data Type |
Access |
User Mappable |
|---|---|---|---|---|---|---|
|
6034 |
1 |
6034 (0x1792) |
AXIS1.VL.THRESH |
Signed32 |
Read/Write |
Yes |
|
71570 |
2 |
6034 (0x1792) |
AXIS2.VL.THRESH |
Signed32 |
Read/Write |
Yes |
|
Parameter |
PNU |
Data Type |
Access |
Units |
|---|---|---|---|---|
|
AXIS#.VL.THRESH |
6034 |
Float |
Read/Write |
Velocity |
