Yaskawa Sigma II Series Servo System - Manual (Page 352)

Sigma II User’s Manual Chapter 8: Ratings and Characteristics
8 - 22
8.1.6 SGMBH Servomotors
SGMBH Standard Servomotor Ratings and Specifications
• Time Rating: Continuous • Thermal Class: F
• Vibration Class: V15 • Withstand Voltage:1800V
ac
for one minute
• Enclosure: Externally fan cooled type, IP44
• Ambient Humidity: 20% to 80% (with no
condensation)
• Insulation Resistance: 500V
DC
,
10M Ω minimum
• Ambient Temperature: 0 to 40°C • Drive Method: Direct drive
• Excitation: Permanent magnet • Thermal Protection: Built-In
• Mounting: Flange mounting or Foot
Mounted (55kW only)
Servomotor Model
SGMBH-
2BD A 3ZD A 3GD A 4ED A 5ED A
Rated Output kW 22 30 37 45 55
Rated Torque N-m 140 191 236 286 350
Instantaneous Peak Torque N-m 280 382 471 572 700
Rated Current A
rms
58 80 100 127 150
Instantaneous Maximum Current A
rms
120 170 210 260 310
Rated Speed RPM 1500
Instantaneous Maximum Speed RPM 2000
Torque Constant N-m/A
rms
2.50 2.39 2.46 2.37 2.40
Moment of Inertia kg-m 2 x 10 -4 592 773 1390 1510 1970
Rated Power Rating kW/s 331 472 401 542 622
Rated Angular Acceleration rad/s 2 2360 2470 1700 1890 1780
Inertia Time Constant ms 2.6 2.3 3.6 2.8 2.7
Conductive Time Constant ms 53 57 67 72 78