A-4 MDriveAC Plus Microstepping Hardware - Revision R121707
Relevant to Firmware Version 3.0.02

Double Length

Holding Torque ............................................................................................... 500 oz-in/353 N-cm
Detent Torque ............................................................................................. 14.16 oz-in/14.0 N-cm
Rotor Inertia ...................................................................................0.02266 oz-in-sec2/1.6 kg-cm2
Weight (Motor + Driver) ............................................................................................. 7.7 lb/3.5 kg

Triple Length

Holding Torque ............................................................................................... 750 oz-in/529 N-cm
Detent Torque ............................................................................................. 19.83 oz-in/10.0 N-cm
Rotor Inertia ...................................................................................0.04815 oz-in-sec2/3.4 kg-cm2
Weight (Motor + Driver) ........................................................................................... 11.0 lb/5.0 kg

MDrive42AC Plus Microstepping

Speed-Torque Curves
600
800
1000
1200
400
200

Torque in Oz-In

Torque in N-cm

424
565
706
847
282
141

Speed – Full Steps/Second (RPM)

0 2000
(600)
4000
(1200)
6000
(1800)
10000
(3000)
8000
(2400)
0
1400
1600
1800
989
1130
1271
Double Motor Length
Single Motor Length

MDrive42AC – 120VAC

MDrive42AC – 240VAC

600
800
1000
1200
400
200

Torque in Oz-In

Torque in N-cm

424
565
706
847
282
141

Speed in full steps per second (RPM)

0 2000
(600)
4000
(1200)
6000
(1800)
10000
(3000)
8000
(2400)
0
1400
1600
1800
989
1130
1271
Double Motor Length
Single Motor Length
Figure A.3: MDrive42AC Plus 120VAC Microstepping Speed-Torque Curves
Figure A.4: MDrive42AC Plus 240VAC Microstepping Speed-Torque Curves