YASKAWA SGM7J-A5A, Technical Supplement

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Linear Servo Motors
SGLG (Coreless Models)
315
Linear Servo Motors
Ratings: With High-Force Magnetic Way
*1. These values are for operation in combination with a SERVOPACK when the temperature of the armature winding is
100°C. The values for other items are at 20°C. These are typical values.
*2. The rated forces are the continuous allowable force values at a surrounding air temperature of 40°C with an aluminum
heat sink of the dimensions given in the following table.
• Heat Sink Dimensions
• 200 mm

300 mm

12 mm: SGLGW-40A140C and -60A140C
• 300 mm

400 mm

12 mm: SGLGW-40A253C and -60A253C
• 400 mm

500 mm

12 mm: SGLGW-40A365C and -60A365C
Linear Servo Motor 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
Combined Magnetic Way, SGLGM- 40  C  -M 60  C  -M
Combined Serial Converter Unit, JZDP-  - 255 256 257 261 262 263
Applicable SERVOPACKs
SGD7S- 1R6A 2R8A 3R8A 1R6A 3R8A 7R6A
SGD7W- 1R6A 2R8A 5R5A 1R6A 5R5A 7R6A
W