YASKAWA SIGMA-7 Series, Product Manual, Page: 47 / 187

3.2 Ratings and Specifications
3.2.5 Specifications: With High-Force Magnetic Way
3
S
pecification
s
, Rating
s
, and Exter
nal Dimen
s
ion
s
of
SG
L
G
S
ervomotor
s
3-9
3.2.5 Specifications: With High-Force Magnetic Way
3.2.6 Ratings: With High-Force Magnetic Way
Linear Servomotor Moving Coil Model
SGLGW-
40A 60A
140C 253C 365C 140C 253C 365C
Time Rating Continuous
Thermal Class B
Insulation Resistance 500 VDC, 10 M
Ω
min.
Withstand Voltage 1,500 VAC for 1 minute
Excitation Permanent magnet
Cooling Method Self-cooled or air-cooled
Protective Structure IP00
Environmental
Conditions
Surrounding Air Temperature 0
°
C to 40
°
C (with no freezing)
Surrounding Air Humidity 20% to 80% relative humidity (with no condensation)
Installation Site
•
Must be indoors and free of corrosive and explosive gases.
•
Must be well-ventilated and free of dust and moisture.
•
Must facilitate inspection and cleaning.
•
Must have an altitude of 1,000 m or less.
•
Must be free of strong magnetic fields.
Shock
Resistance
Impact Acceleration Rate
196 m/s
2
Number of Impacts 2 times
Vibration
Resistance
Vibration Acceleration Rate 49 m/s
2
(the vibration resistance in three directions, vertical,
side-to-side, and front-to-back)
Linear Servomotor Moving Coil Model
SGLGW-
40A 60A
140C 253C 365C 140C 253C 365C
Rated Motor Speed (Reference
Speed during Speed Control)
*1
m/s 1.0 1.0 1.0 1.0 1.0 1.0
Maximum Speed
*1
m/s 4.2 4.2 4.2 4.2 4.2 4.2
Rated Force
*1, *2
N 57 114 171 85 170 255
Maximum Force
*1
N 230 460 690 360 720 1080
Rated Current
*1
Arms 0.80 1.6 2.4 1.2 2.2 3.3
Maximum Current
*1
Arms 3.2 6.5 9.7 5.0 10.0 14.9
Moving Coil Mass kg 0.34 0.60 0.87 0.42 0.76 1.1
Force Constant N/Arms 76.0 76.0 76.0 77.4 77.4 77.4
BEMF Constant
Vrms/(m/s)/
phase
25.3 25.3 25.3 25.8 25.8 25.8
Motor Constant
N/
9.62 13.6 16.7 12.9 18.2 22.3
Electrical Time Constant ms 0.43 0.43 0.43 0.45 0.45 0.45
Mechanical Time Constant ms 3.7 3.2 3.1 2.5 2.3 2.2
Thermal Resistance (with Heat
Sink)
K/W 1.67 0.87 0.58 1.56 0.77 0.51
Thermal Resistance (without
Heat Sink)
K/W 3.02 1.80 1.23 2.59 1.48 1.15
Magnetic Attraction N 0 0 0 0 0 0
Maximum Allowable Payload kg 12 24 58 18 61 91
Maximum Allowable Payload
(With External Regenerative
Resistor and External Dynamic
Brake Resistor
*3
)
kg 12 24 58 18 61 91
Continued on next page.
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