AXIS#.MOTOR.KE
Description
AXIS#.MOTOR.KE is the back EMF constant for the motor. The back EMF constant defines how much voltage is generated at the motors coils. The relationship between AXIS#.MOTOR.KE and speed is described by the following equation:
Coil Voltage = AXIS#.MOTOR.KE * AXIS#.VL.FB
AXIS#.VL.FB is in units of krpm for rotary motors.
The maximum speed for interior permanent magnet motors (IPM) is determined by AXIS#.MOTOR.KE and VBUS.VALUE. An overspeed fault is generated if AXIS#.MOTOR.TYPE is set to 6 (IPM) and AXIS#.VL.FB * AXIS#.MOTOR.KE exceeds VBUS.VALUE.
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- This parameter is automatically configured for Kollmorgen motors when MOTOR.AUTOSET=1.
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This parameter is required to be configured for AXIS#.MOTOR.TYPE = 6
Context
For more information see Motor.
Versions
Action | Version | Notes |
---|---|---|
Implemented | 02-00-00-000 |
General Information
Type |
Read/Write |
Units |
Vpeak/krpm for Rotary Motors |
Range |
0 to 100,000 |
Default Value |
20 |
Data Type |
Float |
See Also |
N/A |
Stored in Non Volatile Memory |
Yes |
Variants Supported
All variants are supported.
Fieldbus Information
FieldbusA Fieldbus is an industrial network system for real-time distributed control (e.g. CAN or Profibus). It is a way of connecting instruments in a plant design | Parameter | Index | Sub-Index | Data Type | Float Scale | Units | Access | PDOPDO is a type of protocol frame used in some fieldbuses. A PDO contains one or more object dictionary entries, which define the application data transferred between devices. Mappable |
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EtherCAT***EtherCAT is an open, high-performance Ethernet-based fieldbus system. The development goal of EtherCAT was to apply Ethernet to automation applications which require short data update times (also called cycle times) with low communication jitter (for synchronization purposes) and low hardware costs COE and CANopen | AXIS1.MOTOR.KE | 0x500B | 0x13 | UDINT | 1000:1 | - | RW | False |
AXIS2.MOTOR.KE | 0x510B | 0x13 | UDINT | 1000:1 | - | RW | False |