Japan YASKAWA 400W 200V 2.8A Industrial AC SERVO MOTOR SGMAH Sigma II SGMAH-04AAA6B
Brand Name:Yasakawa
Model Number:SGMAH-04AAA6B
Minimum Order Quantity:1
Delivery Time:2-3 work days
Payment Terms:T/T, Western Union
Place of Origin:Japan
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23E BlockB,Lushan Building，Chunfeng Road,Luohu District,Shenzhen,518001,China
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Product Details
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Product Details
SGMAH Sigma II Japan YASKAWA 0.637N.m SERVOMOTOR INsB SGMAH-02AAN21
Specifications
Model SGMAH-04AAA6B
Product Type AC Servo Motor
Rated Output 400w
Rated Torque 1.27 Nm
Rated Speed 3000RPM
Power Supply Voltage 200vAC
Rated Current 2.8Amps
OTHER SUPERIOR PRODUCTS
Yasakawa Motor, Driver SG- Mitsubishi Motor HC-,HA-
Westinghouse Modules 1C-,5X- Emerson VE-,KJ-
Honeywell TC-,TK- Fanuc motor A0-
Rosemount transmitter 3051- Yokogawa transmitter EJA-
Contact person: Anna
E-mail: wisdomlongkeji@163.com
Cellphone: +0086-13534205279
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A type 2 servo has two integrators (usually one motor and one
"software" integrator) as part of the amplifier.
The A term takes the form (KI/ω2 )∠-180°. Since the A term approaches ∞ as ω approaches 0, there will be no error (E) when the system is at rest. In this respect, it is similar to the type 1 servo.
The A term takes the form (KI/ω2 )∠-180°. Since the A term approaches ∞ as ω approaches 0, there will be no error (E) when the system is at rest. In this respect, it is similar to the type 1 servo.
If one considers the condition when a position ramp (constant velocity) is commanded, there are two logical
inferences that can be made. The second integrator (the motor) must have a constant input to provide a velocity output. This means that the first integrator needs to supply a constant signal to the second integrator, thus the input to the first integrator must be 0. If the input to the first integrator is 0, then there is no position error in this system in the constant velocity mode. This is exactly the case and explains why so much effort has gone into developing type 2 systems.
In addition to no position error at rest, a type 2 system has the additional feature of no position error with a
steady state ramp input in position (after the acceleration is complete.)
Final Comments
It would appear that one should simply use a type 2 servo. Needless to say, it isn't that easy. A type 2 servo isinherently unstable. One must use compensation techniques to make it a type 2 servo which converts to a type 1 near bandwidth frequencies where stability is determined. The earlier discussion on PID described just such a technique to give the low frequency benefits of a type 2 servo, yet achieve stability.
If zero position error is important under steady state positional ramping (constant velocity) conditions, then the PID approximation of a type 2 system is the answer. Don't complicate the design if you don't need it, though.
It would appear that one should simply use a type 2 servo. Needless to say, it isn't that easy. A type 2 servo isinherently unstable. One must use compensation techniques to make it a type 2 servo which converts to a type 1 near bandwidth frequencies where stability is determined. The earlier discussion on PID described just such a technique to give the low frequency benefits of a type 2 servo, yet achieve stability.
If zero position error is important under steady state positional ramping (constant velocity) conditions, then the PID approximation of a type 2 system is the answer. Don't complicate the design if you don't need it, though.
An example of the need for zero position error would be in master/slave applications where the slave is
expected to stay in precise position synchronism with the master even though an operator may choose to
change the "speed" of the master.
So much for this class in classifying servos.
Japan YASKAWA 400W 200V 2.8A Industrial AC SERVO MOTOR SGMAH Sigma II SGMAH-04AAA6B
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