15M020D1B Mclennan

Permanent magnet stepper motors Commercial series The M series instrument stepper motors are high quality permanent magnet types providing a choice of 18,15, 7.5 or 3.6 degree step angle. The motors may be specified fitted with gearheads where increased torque and resolution are required at reduced operating speed. The M series motors offer excellent performance combined with low pricing. They are ideally suited to instrumentation applications where large production volumes are likely. A comprehensive programme of drives, power supplies and controllers are available for the small volume user to construct advanced single and multi-axis positioning systems. Dimensions: L7 L1 L2 L3 L5 L4 L3 D2 D1 D4 L4 D3 L8 D4 L6 L8 Form 1A Form 2 motor type form dimensions mm D1 D2 D3 D4 L1 L2 L3 L4 L5 L6 L7 L8 15M020D 1 A 15.01 1.5 5.97 2.2 15.11 10 24 20 1.5 0.8 2.1 90 26S024B 1 A 26.2 2.0 7.92 3.3 13.3 12.7 42.8 35 3.8 0.8 Nil 191 26M048B 10 13.72 11.3 1.52 3.4 35L048B 1 A 36 2.0 10 3.2 21.1 11.3 50 42 1.8 0.8 2 191 42M048C 1 A 42 3.0 10 3.5 22.0 11.4 56.5 49.5 1.52 0.8 3.5 305 60L 048B 1 A 59.2 6.35 12 4.3 37.9 19.1 79.4 66.68 2.0 1.6 Nil 305 42M100B-2U 2 42 3.0 10 3.5 15.5 11.4 42 35 1.52 0.8 3.4 305 42M100B-1U 1 A 42 3.0 10 3.5 15.5 11.4 56.5 49.48 1.52 0.8 3.4 305 MV82801 2 59.2 6.0 12 4.3 37.9 18 65 56 2.03 1.6 2.23 305 Specification motor type step holding rotor resistance current inductance number mass angle torque inertia per phase per phase per phase of leads or 2 degrees Ncm Kgcm ohms amps mH terminals gms 15M020D-1B 18 0.388 0.00011 40 0.125 14 4 14 26S024B-2U 15 0.5 0.00045 118 0.1 33.8 6 28 26M048B-2U 7.5 0.9 0.0011 110 0.1 36.5 6 28 26M048B-1U 19.6 0.25 5.3 35L048B-2U 7.5 2.5 0.004 64 0.18 40 6 88 35L048B-1U 7.5 2.5 0.004 11 0.45 7.8 6 88 42M048C-2U 7.5 6.6 0.0134 52.4 0.23 51.7 6 144 42M048C-1U 7.5 6.6 0.0134 9.1 0.55 8.1 6 144 60L048B-2U 7.5 16.9 0.095 26.2 0.46 26.2 6 478 60L048B-1U 7.5 16.9 0.095 4.55 1.0 6.4 6 478 MV82801-P2 7.5 19.8 0.095 26 0.46 33 6 440 MV82801-P1 7.5 19.8 0.095 4.6 1.0 6 6 440 42M100B-2U 3.6 4.5 0.0118 75 0.16 37.7 6 87 42M100B-1U 3.6 4.5 0.0118 12.5 0.40 6.6 6 87 note The above motors are 4 phase units suitable for use with uni-polar or bi-polar drive circuits with the exception of the 15M029D-1B motor which is designed specifically for Bi-polar operation . Bi-polar versions of the other motors in the range are available to special order. Mclennan Servo Supplies Ltd. Tel: +44 (0)8707 700 700 www.mclennan.co.ukTypical permanent magnet stepper motor performance 35L048B series 26 series 0.5 2 0.4 1.5 0.3 1 L/4R drive 0.2 26M048B 26S024B 0.5 L/R Drive 0.1 0 0 0 500 1000 1500 0 250 500 750 1000 steps per sec. ( 7.5 degrees ) steps per second Uni-polar drive Uni-polar drive 42M048C series 60L048 & MV82 series 5 10 4.5 4 8 3.5 3 6 2.5 L/5R Drive 2 4 1.5 L/R Drive L/R Drive L / 5R Drive 1 2 0.5 0 0 0 250 500 750 1000 0 250 500 750 1000 steps per sec. ( 7.5 degrees ) steps per sec. ( 7.5 degrees ) Uni-polar drive Uni-polar drive Suitable modular drives for above motors: MSE422, PVP134, PM542 12Vdc Explanation of terminology The motors may be connected directly to a dc supply of the same value 35L048B-2U motor as the motor rating. For example, the 35L048B-2U motor is a 12 Volt rated unit and therefore may be connected directly to a 12 Vdc supply as shown in Fig 1. This is often referred to as L/R Drive DRIVE CIRCUIT FIG. 1 For increased high speed performance however it is quite usual to connect the motor to a higher supply voltage via series resistors since the current rise time in the motors coils is proportional to the inductance 24 Vdc ( L ) divided by the resistance ( R ) in the drive circuit. Series Resistors For example, the 42M048C-1U motor is a 5 Volt rated unit. When connected to a 24 Vdc supply via series resistors the ratio of 42M048C-1U motor inductance/ resistance will be greatly improved. In this case the system, as shown in Fig 2 would approximate an L/5R drive. DRIVE CIRCUIT Alternatively a more sophisticated drive system can be employed using FIG. 2 chopped constant current techniques when the series resistors are not required. A suitable drive of this type is PM542 Mclennan Servo Supplies Ltd. Tel: +44 (0)8707 700 700 www.mclennan.co.uk Torque ( Ncm ) Torque ( Ncm ) Torque ( Ncm ) Torque ( Ncm )