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| Brand: | Yaskawa | Model: | SGMAH-A3B1A21 |
|---|---|---|---|
| Type: | AC Motor | Place Of Origin: | Japan |
| Rated Output:: | 30W | Supply Voltage: | 200V |
| Ins: | B | Options:: | Without Brake |
| Highlight: | ac servo motor,electric servo motor |
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Yaskawa Electric 0.095N.m Industrial 30W InsB AC SERVO MOTOR 0.44A SGMAH-A3B1A21
Item specifics
OTHER SUPERIOR PRODUCTS
SIMILAR PRODUCTS
What happens when the system is in motion? Consider that A2 is a typical drive and motor combination. The error E2 will cause the drive to run and the speed at which it runs is proportional to the value of E2. The larger E2 is, the faster the motor will go. This tells one that the output (feedback) will not be precisely coincident with the command while in motion and, in fact, the output F2 will lag the command C2 by the amount of the error E2. The faster it goes, the more will be the lag. This is bad for good master/slave operation, which requires that the slave F2 precisely follow the master F1.
If a software module (S) is inserted between F1 and C2 a number of things can be accomplished.
Since the gain of the slave loop A2 is known, the value of E2 can be predicted at any desired velocity. This means that the command C2 can be adjusted by that computed error E2 to cause
F2 to be coincident with F1. The software module (S) will be designed so that: C2 = F1 + E2
When this is accomplished, F1 and F2 are coincident.
Also, since S is a software module, it is possible to manipulate it in several other ways to provide the flexibility mentioned earlier.
For instance, if we let S = (•K) where K can be any constant, then there exists a totally
flexible gear ratio that can be changed at will.
Stepper Motor Advantagesand Disadvantages
Advantages
1. The rotation angle of the motor is proportional to the input pulse.
2. The motor has full torque at standstill (if the windings are energized)
3. Precise positioning and repeatability of movement since good stepper motors have an accuracy of
3 – 5% of a step and this error is non cumulative from one step to the next.
4. Excellent response to starting/ stopping/reversing.
5. Very reliable since there are no contact brushes in the motor. Therefore the life of the motor is simply dependant on the life of the bearing.
6. The motors response to digital input pulses provides open-loop control, making the motor simpler
and less costly to control.
7. It is possible to achieve very low speed synchronous rotation with a load that is directly coupled to the
shaft.
8. A wide range of rotational speeds can be realized as the speed is proportional to the frequency of the
input pulses.
Contact Person: Harper
Tel: 86-13170829968