Yaskawa 450W AC Servo Motor SGMGH-05DCA61
Yaskawa NEW ORIGINALS 450W 1500r/min ELECTRIC SERVO MOTOR SGMGH-05DCA61
Technical Specifications
| Model |
SGMGH-05DCA61 |
| Product Type |
AC Servo Motor |
| Rated Output |
450W |
| Rated Torque |
2.84 Nm |
| Rated Speed |
1500 RPM |
| Power Supply Voltage |
200V AC |
| Rated Current |
3.8 Amps |
Other Superior Industrial Products
| Yaskawa Motor, Driver |
SG- Series |
| Mitsubishi Motor |
HC-, HA- Series |
| Westinghouse Modules |
1C-, 5X- Series |
| Emerson |
VE-, KJ- Series |
| Honeywell |
TC-, TK- Series |
| GE Modules |
IC Series |
| Fanuc Motor |
A0- Series |
| Yokogawa Transmitter |
EJA- Series |
Similar Yaskawa Servo Motor Models
SGMGH-03ACB61
SGMGH-03ACB6C
SGMGH-05A2A2B
SGMGH-05A2A61
SGMGH-05A2ASC61
SGMGH-05ACA61 + SGDM-05ADA
SGMGH-05ACA6C
SGMGH-05ACC21
SGMGH-09A2A21
SGMGH-09ACA21
SGMGH-09ACA2B
SGMGH-09ACA2C
SGMGH-09ACA61
SGMGH-09ACA6B
SGMGH-09ACA6C
SGMGH-09ACB61
SGMGH-09ACB6B
SGMGH-09PCA-AM14
SGMGH-12A2B2
SGMGH-12A2B21
SGMGH-13A2A-YR13
SGMGH-13A2A-YR23
SGMGH-13A2A-YR23A
SGMGH-13A2A-YR24
SGMGH-13ACA
SGMGH-13ACA21
SGMGH-13ACA61
SGMGH-13ACA6C
SGMGH-13DCA61
SGMGH-1AACA61
SGMGH-1EACA61
SGMGH-20A2B2C
SGMGH-20ABA6C
SGMGH-20ACA61
SGMGH-20ACA6B
SGMGH-20ACA6C
SGMGH-20ACB2C
SGMGH-20ACB61
SGMGH-20D2A21
Installation and Grounding Guidelines
Motor Frame Grounding
Always connect servomotor frame terminal FG to the SERVOPACK ground terminal. Also be sure to ground the ground terminal properly. If the servomotor is grounded via the machine, a switching noise current will flow from the SERVOPACK power unit through motor stray capacitance. This grounding is required to prevent the adverse effects of switching noise.
SynqNet Communication Cable
Keep the power line separate from the SynqNet communication cable because the cable is easily influenced by noise. If noise is a problem, coil the communication cable two turns around the ferrite cores on the SERVOPACK end and the controller end.
Reference Input Line Noise Protection
If the reference input line receives noise, ground the 0 V line (SG) of the reference input line. If the main circuit wiring for the motor is accommodated in a metal conduit, ground the conduit and its junction box. For all grounding, ground at one point only. All grounds must be made to only one point in the system.
Manual Motor Starters
A manual motor starter is a package consisting of a horsepower-rated switch with one set of contacts for each phase and corresponding thermal overload devices to provide motor overload protection.
- The main advantage of a manual motor starter is lower cost than a magnetic motor starter with equivalent motor protection but less motor control capability.
- Manual motor starters are often used for smaller motors - typically fractional horsepower motors but the National Electrical Code allows their use up to 10 Horsepower.
- Since the switch contacts remain closed if power is removed from the circuit without operating the switch, the motor restarts when power is reapplied which can be a safety concern.
- They do not allow the use of remote control or auxiliary control equipment like a magnetic starter does.
A normal servo, which lags the command, will round the corner as the second axis command builds up and the lag in the first axis dissipates. With feedforward, since the machine is coincident with the command when the corner is reached and the feedforward for the first axis is removed in a step fashion, the first axis will respond similar to its step response.
Servo Update Time Considerations
Control vendors update their servos on a regular time basis. Servo update time is the time interval between the calculations for command (C) minus feedback (F) to give error (E). In other words, it is how often a correction (E) is calculated. Update times vary from microseconds up to 16 ms (milliseconds) for most controllers.
Some vendors initially updated servos once per scan with their programmable controller. However, variations in scan time caused severe servo problems, especially when axes needed to be coordinated. Typically the software for closing the servo loop is written in assembly language which is OK since it is invisible to the user. Assembly language is the best to use because it is the most efficient with computer time, especially since it interrupts the computer so often.
To conserve computer time, it would seem logical to choose the longest servo update time possible, however, sample data theory would tell one to choose the shortest. In a study conducted by myself and Dr. John Bollinger of the University of Wisconsin, the conclusion was that a 10 ms servo update time would be more than adequate for heavy duty industrial machinery. This has proven to be true.
Many vendors are also closing the velocity loop digitally with the computer. Since the velocity loop is inside the position loop, the velocity bandwidth must be at least five times greater, thereby requiring a sample time of 2 ms or better.
There are two basic approaches to computer closure of the servo loop. One is to devote a computer to each axis. The other is to have a central computer that closes all axes. Each vendor will have a list of reasons why his is best.
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