Question

2. What is the reason for encoders’ damage? 3. Calculate the speed of a motor shaft...

2. What is the reason for encoders’ damage?

3. Calculate the speed of a motor shaft and output shaft when the encoder has 250 slots, frequency of the encoder channel is 1500 Hz, and gear ratio is 40.

Homework Answers

Answer #1

1.mechanical factors

a)shaft loading- more will be the loading less will be life of encoder

b)shaft speed - greater the speed lesser is life of encoder.

c)vibration-is the can cause damage of encoder

d)bore tollerance- a suitable fit is desirable for proper woeking of encoder and life of encoder

2.electrical factor

a) current - if current is excessive can damage encoder

3.environmental factor

a)tmperature-temperature cycling can damage thge encoder

b)contamination-foreign material like dust moisture can damage the encoder

placement

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
you are given a motor operated by a 9V battery. The stall torque for this motor...
you are given a motor operated by a 9V battery. The stall torque for this motor is  Ts = 0.04 N-m, and its no-load speed, wnl = 2200  rpm. You are given a 10-tooth gear, a 20-tooth gear, and a bunch of axles (shafts). Draw below how will you connect the gears and shafts so that output shaft has a higher torque than the motor shaft. Label in your diagram, which gear is the input (driver), and which is the output (driven).   ...
Question A 208 V 10 Hp four pole 60 Hz Y connected induction motor has a...
Question A 208 V 10 Hp four pole 60 Hz Y connected induction motor has a full load slip of 5%. a)-What is the synchronous speed of this motor? b)-What is the shaft speed of this motor at full load? c)-What is the frequency of rotor current at full load? d)-What is the shaft torque of this motor at full load? e)-If the efficiency of this motor is 90% at full load what is the input power f)-If the efficiency...
A 3-phase, 380 V, 50 Hz , 6 pole, Y-connected induction motor has R1 = 0.1...
A 3-phase, 380 V, 50 Hz , 6 pole, Y-connected induction motor has R1 = 0.1 W , X1 = 0.4 W, R2’ = 0.12 W , X2’ = 0.4 W, Xm = 20 W , Pr = 1 kW. The motor is operated at 970 rpm what is the output shaft torque?
A three-phase, 60-Hz, 4-pole, 440-V (line-line, rms) induction-motor drive has a full-load (rated) speed of 1746...
A three-phase, 60-Hz, 4-pole, 440-V (line-line, rms) induction-motor drive has a full-load (rated) speed of 1746 rpm. The rated torque is 40 Nm. Keeping the air gap flux-density peak constant at its rated value. The frequency and voltage of the motor from above are adjusted such that the fan speed is changed to 600 rpm. The motor should be operating at 3% slip and rated Bm. What is the motor efficiency?
A 3-phase 50Hz 2-pole 440V (L-L rms) induction motor drive has a rated speed of 2955...
A 3-phase 50Hz 2-pole 440V (L-L rms) induction motor drive has a rated speed of 2955 rpm and rated torque of 35 Nm. This motor drives a load with a torque characteristic that increases linearly with speed such that it equals the load torque at the rated speed. It draws a current of 3.0 A(rms) per phase at the rated voltage at a power factor of 0.81 (lagging). The stator resistance Rs = {r_s} ohms. At the rated operating speed,...
A 200 V DC, 1,800 RPM shunt connected motor has an armature resistance of 0.4 ohm...
A 200 V DC, 1,800 RPM shunt connected motor has an armature resistance of 0.4 ohm and a brush resistance of 0.4 ohm; brush voltage drop of 6.0 V, independent of load. The resistance of the shunt field is 230 ohm. The full load rated line current is 40 A. When the motor is operated at no load the line current is 5 A and the speed is 1750 RPM. Calculate speed at rated load Calculate speed at .3 rated...
1- What are slip and slip speed in an induction motor? 2- How does an induction...
1- What are slip and slip speed in an induction motor? 2- How does an induction motor develop torque? 3- Why is it impossible for an induction motor to operate at synchronous speed? 4- Sketch and explain the shape of a typical inductionmotor torque-speed characteristic curve? Make the work clear, understandable and readable please. Thanks!
Problem 1: A 800 V, 4 pole, 3 phase, and 50 Hz star connected induction motor...
Problem 1: A 800 V, 4 pole, 3 phase, and 50 Hz star connected induction motor has a rotor resistance and reactance per phase equal to 0.02 ohm and 0.2 ohm respectively. Determine 1) starting torque 2) slip at which maximum torque will occur 3) speed at which maximum torque will occur 4) Maximum torque 5) full load torque if full load slip is 8%. Assume ratio of stator to rotor turns as 8.
A 20kW. 3-phase, +40 V. 4 pole, delta-connected permanent magnet synchronous motor has following parameters Xs=5...
A 20kW. 3-phase, +40 V. 4 pole, delta-connected permanent magnet synchronous motor has following parameters Xs=5 ohm, Rs negligible  rated power factor = 1.0. Machine is controlled by variable frequency control at a constant (V/f) ratio. Calculate (i) Armature current. torque angle and power factor at half full load torque and 750 rpm. (ii) armature current, torque angle and power factor at half full load torque and 1000 rpm. (iii) The braking torque, torque angle and power factor when working under...
1) A DC machine induces an EMF of 240 v at 1500 rpm. Find the developed...
1) A DC machine induces an EMF of 240 v at 1500 rpm. Find the developed torque for an armature current of 25A. 2) Draw and explain all characteristics of d.c. Shunt motor. 3) State accessitivity of 3 point starter. 4) A four pole wave connected dc armature has 50 slots with 10 conductors per slot. The armature is rotated at 1000 rpm of the useful flux per pole is 30mwb, calculate the amount of EMF induced. 5) A 6...