Electric Yaskawa AC Servo Motor SGM-08A314 750W 200V 4.4A 2048 3000 R / Min

Industrial Servo Motor Yaskawa Electric AC Servo Motor SGM-08A314 750W 200V 4.4A
 
 
 
Manufacturer: Yaskawa
Product number: SGM-08A314
Vendor number: DMSG0834
Description: SGM-08A314 is an Motors-AC Servo manufactured by Yaskawa
Servomotor Type: SGM
Rated Output: 750W (1.0HP)
Power Supply: 200V Standard
Encoder Specifications: 2048 P/R Incremental Encoder
Revision Level: Standard or CE Specification
Shaft Specifications: Straight with keyway
Options: None
 
 
 

• YASKAWA ELECTRIC
• SGM-08A314
• SGM08A314
• DISCONTINUED BY MANUFACTURER
• SERVO MOTOR 750W 3000RPM 4.4AMP 200V
• REBUILT SURPLUS
• NEVER USED SURPLUS
• REPAIR YOURS
• 24-48 HOUR RUSH REPAIR
• 2 - 15 DAY REPAIR
• 2 YEAR RADWELL WARRANTY

 
nsent Form and
Questionnaire(~3 minutes)
The subject was asked to read the intended purpose of the experiments and to sign a consent form. Each subject furnished all personal details by means of a short questionnaire.
Adjustment of
Driving Posture (~1 minute)
The subject was asked to remove heavy clothing, watches, and jewellery. They were then asked to adjust the sitting posture to a comfortable position, simulating the driving task as realistically as possible.
Measurement of Posture Angles(~1 minute)
Four postural angles; arm, wrist, back and shoulder angles were measured using a full circle goniometer.
Preparation for Test(~1 minute)
Instructions were given to the subject. Each subject was asked to wear ear protectors and to wear blind glasses before gripping the steering wheel. They were also required to maintain a constant grip force with both hands on thesteering wheel as if they were driving over a winding country road at 50 m.p.h.
Familiarization(~2 minutes)
The test subjects were familiarized with the signals and methods used. A  maximum of two test runs were performed.
Equal Sensation Test *( 25 minutes)
Break( ~ 3 minutes)
Annoyance Test(15 minutes)
* To avoid fatigue and learning effects, each subject was allowed to perform a no more than two equal sensation tests on a given day.
A short break was given after finishing the first set of tests to avoid fatigue. An annoyance test was performed on each subject.
 
 
 
30 subjects were chosen randomly for each test from a database of 70 subjects. The 70 subject
population consisted mostly of students and staff from within the University of Sheffield. 49 of them were
male and 21 females aged from 18 – 50 years with an average of 21.5 years and standard deviation of
6.5 years. Their height ranged from 1.5 to 2.0 metres, with an average of 1.7 metres and standard
deviation of 0.1 metres. Weight of the subjects ranged 45 to 90 kg, with an average of 62.6 kg and
standard deviation of 13.1 kg. More than 50% of the subjects ranked the comfort level of their vehicles as
being “good” based on the questionnaires given. Only one subject responded “slight discomfort”. On
average, 55% of the subjects drove 1 to 2 hours daily, but 10% had no driving experience. All subjects
were in good health and physically fit to undergo the vibration experiments.
 
 
 
Effect of Frequency and Amplitude
Figure 5 presents the average equal sensation contours and the annoyance curve for 30 subjects plotted
in terms of r.m.s acceleration amplitude as a function of frequency from 5 to 315 Hz. The results show
approximately linear behaviour in all tests from 5 to 60 Hz. Above 60 Hz the curves were observed to
Phase Tasks performed and information obtained
Consent Form and
Questionnaire
(~3 minutes)
The subject was asked to read the intended purpose of the experiments and to
sign a consent form. Each subject furnished all personal details by means of a
short questionnaire.
Adjustment of
Driving Posture
(~1 minute)
The subject was asked to remove heavy clothing, watches, and jewellery. They
were then asked to adjust the sitting posture to a comfortable position,
simulating the driving task as realistically as possible.
Measurement of
Posture Angles
(~1 minute)
Four postural angles; arm, wrist, back and shoulder angles were measured
using a full circle goniometer.
Preparation for Test
(~1 minute)
Instructions were given to the subject. Each subject was asked to wear ear
protectors and to wear blind glasses before gripping the steering wheel. They
were also required to maintain a constant grip force with both hands on the
steering wheel as if they were driving over a winding country road at 50 m.p.h.
Familiarization
(~2 minutes)
The test subjects were familiarized with the signals and methods used. A
maximum of two test runs were performed.
Equal Sensation Test *
( 25 minutes)
Break
( ~ 3 minutes)
Annoyance Test
(15 minutes)
* To avoid fatigue and learning effects, each subject was allowed to perform a
no more than two equal sensation tests on a given day.
A short break was given after finishing the first set of tests to avoid fatigue.
An annoyance test was performed on each subject.
increase rapidly in a non-linear manner. The equal sensation curves, except for test 1, were found to
converge towards the annoyance threshold level above 100 Hz.
To investigate whether the equal sensation curves varied as a function of reference signal amplitude,
statistical significance tests were performed using a one-factor ANOVA and post-hoc Tukey Test [12] at
0.01 confidence level for each equal sensation curve. Results of paired comparison Tukey tests showed
equal sensation test 2 and test 3 may come from the same distribution. However, significant differences
were found for equal sensation test 1 (p<0.0001).
A transition was found to occur in the behaviour of all the curves in the frequency region between 50 Hz
to 80 Hz. The behaviour of the curves in this region was assumed to occur due to the combined
behaviour of the Pacinian and non-Pacinian systems. As reported by Verillo [27], the strongest action of
the Pacinian corpuscles is believed to occur in the frequency range from 60Hz to 400 Hz. Meissner’s
corpuscles are believed to be the main contributors to the perception of skin vibration at frequencies
approximately below 45 Hz. The transition which was found to occur in all four curves somewhere in the
neighbourhood of 60 Hz to 80 Hz can be hypothesized to be due to the action of the Pacinian corpuscles
which begin to dominate the nervous response to the vibration stimuli.
 
 

OTHER SUPERIOR PRODUCTS