
Double Length
| Holding Torque | 500  | 
| Detent Torque | 14.16  | 
| Rotor Inertia | 0.02266  | 
| Weight (Motor + Driver) | 7.7 lb/3.5 kg | 
Triple Length
| Holding Torque | 750  | 
| Detent Torque | 19.83  | 
| Rotor Inertia | 0.04815  | 
| Weight (Motor + Driver) | 11.0 lb/5.0 kg | 
MDrive42AC Plus Microstepping
MDrive42AC – 120VAC
Torque in Oz-In 
1800
1600
1400
1200
1000
800
600
400
200
00
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 1271 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | Double Motor Length | 
 | 1130 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | Single Motor Length | 
 | 
 | ||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 706 | Torquein | ||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 989 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 847 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 565 | N- | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 424 | cm | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 282 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 141 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 2000 | 4000 | 6000 | 8000 | 10000 | 
 | |||||||||
| (600) | (1200) | (1800) | (2400) | (3000) | 
 | |||||||||
Speed – Full Steps/Second (RPM)
Figure A.3: MDrive42AC Plus 120VAC Microstepping Speed-Torque  Curves
MDrive42AC – 240VAC
Torque in 
1800
1600
1400
1200
1000
800
600
400
200
00
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 1271 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | Double Motor Length | 
 | 1130 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | Single Motor Length | 
 | 
 | ||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 706 | Torquein | ||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 989 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 847 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 565 | N- | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 424 | cm | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 282 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 141 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 2000 | 4000 | 6000 | 
 | 8000 | 10000 | 
 | |||||||||
| (600) | (1200) | (1800) | (2400) | (3000) | 
 | ||||||||||
Speed in full steps per second (RPM)
Figure A.4: MDrive42AC Plus 240VAC Microstepping Speed-Torque  Curves
| MDriveAC Plus Microstepping Hardware - Revision R121707 | |
| 
 | Relevant to Firmware Version 3.0.02 |