Description
MOTOR.KE defines the back EMF constant for the motor. The back EMF constant defines how much voltage is generated at the motors coils. The relationship between MOTOR.KE and speed is described by the following equation:
Coil Voltage = MOTOR.KE * VL.FB
VL.FB is in units of krpm for rotary motors and in units of m/s for linear motors.
The maximum speed for interior permanent magnet motors (IPM) is determined by MOTOR.KE and VBUS.VALUE. An overspeed fault is generated if MOTOR.TYPE is set to 6 (IPM) and VL.FB * MOTOR.KE exceeds VBUS.VALUE.
-
- This parameter is automatically configured for Kollmorgen motors when AXIS#.MOTOR.AUTOSET=1.
General Information
|
Type |
NV Parameter |
|
Units |
Vpeak/krpm for Rotary Motors Vpeak/m/s for Linear Motors |
|
Range |
0.0 to 100,000 |
|
Default Value |
0 |
|
Data Type |
Float |
|
See Also |
N/A |
|
Start Version |
M_01-03-06-000 |
Variants Supported
| Variant | Supported |
|---|---|
| AKD Base | Yes |
| AKD with Position Indexer | Yes |
| AKD EtherCAT | Yes |
| AKD CANopen | Yes |
| AKD BASIC | Yes |
| AKD SynqNet | Yes* |
| AKD EtherNet/IP | Yes |
| AKD Profinet | Yes |
| AKD sercos® III | Yes |
| AKD-N | Yes |
| AKD-C | No |
*In SynqNet, a parameter may be available in the firmware but have no effect on the system. See SynqNet Supported Parameters.
Fieldbus Information
If your drive type is listed as supported but no index, address, or instance number is listed, then this parameter is accessible through WorkBench, but not over your fieldbus type.
|
Fieldbus |
Index/Subindex |
Object Start Version |
|---|---|---|
|
EtherCAT COE and CANopen |
5260h /0 |
M_01-03-06-000 |
|
Fieldbus |
Address |
Attributes | Signed? |
|---|---|---|---|
|
Profinet |
2608 |
DWord | No |
| sercos® III | 4 Octets |
| Fieldbus | Instance | Data Size | Data Type |
|---|---|---|---|
| EtherNet/IP | 609 | 4 Byte | Float |
|
Fieldbus |
Index/Subindex |
Is 64 bit? | Attributes | Signed? |
|---|---|---|---|---|
| Modbus | 1216 | No | 32 bit |
No |
Related Topics
Motor | VL.FB | VBUS.VALUE
