Discuss the considerations you need to be aware of when building a control application with servos
Discuss the considerations you need to be aware of when building a control application with stepper motors
considerations with servos
1. Coupling type
servo-motor function depends on having a suitable coupling in place like bellows couplings, rubber-jaw couplings, and disc couplings
2. Sizing for torque and speed
sizing mainly depends on axis speed, levels of torque the axis must transmit, and the service factor the application requires.
3. Coupling stiffness
Balance coupling is suitable for stiffness. Excessive torsional stiffness induce premature failure.
4. Coupling inertia
Mainly low coupling inertia prefered
5. Coupling damping capabilities
Disc couplings, bellows couplings, and high-gain rubber-type couplings are used for coupling-based damping in servomotors.
6. Shaft connections
Most of the couplings used in servomotors connect shafts with clamping or locking mechanisms
7. Ability to handle reversals
There must be quick directional changes in servo applications.
8. Function to protect more expensive subcomponents
couplings are designed to protect the axis actuator, motor and gearbox by breaking if there is a machine crash or overload.
considerations with steppermotors.
1. determine the maximum torque and speed required by your application and choose the motor accordingly
2.Choose optimum current setting
3. Choose the standby current during the motor standstill.
4. Determine whether the given driver voltage is sufficient for operation.
5. calculate back EMF.
6.Choose correct commutation scheme.
7. Avoid motor resonance in fullstep operation .
Discuss the considerations you need to be aware of when building a control application with servos...
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