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Positioning Systems - Romicon

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Table 5.3 Specifications for TMR3 Torque Motors<br />

Symbol Unit TMR32 TMR34 TMR34L TMR38 TMR38L TMR3C TMR3CL<br />

Peak torque for 1 second T p Nm 22 42 42 80 80 120 120<br />

Continuous torque (coil temp. 80 °C) T c Nm 8 16 16 32 32 47 47<br />

Stationary torque (coil temp..80 °C) T s Nm 6 11 11 23 23 33 33<br />

Peak current for 1 second I p Aeff 8 8 16 8 16 8 16<br />

Continous current (Coil temp. 80 °C) I c Aeff 3 3 6 3 6 3 6<br />

Engine constant (coil temp. 25 °C) K m Nm/� W 0,8 1,4 1,4 2,2 2,2 2,8 2,8<br />

Winding resistance (Coil temp.. 25 °C) R 25 � 2,4 4,3 1,1 7,2 1,8 10,1 2,6<br />

Winding resistance (Coil temp. 100 °C) R 100 � 2,8 5,1 1,3 8,5 2,2 12 3<br />

Motor inductivity L mH 8 16 4 27 6,8 37 9,3<br />

Electric time constant T e ms 3,9 3,9 3,9 3,9 3,9 3,9 3,9<br />

Torque constant K t Nm/A eff 2,6 5,2 2,6 10,4 5,2 15,6 7,8<br />

Voltage constant K v V rms/(rad/s) 1,6 3,2 1,8 6,4 3,7 9,6 5,5<br />

Number of poles 2p – 22 22 22 22 22 22 22<br />

Thermal resistance R th K/W 0,70 0,58 0,58 0,41 0,41 0,29 0,29<br />

Thermal circuit breakers 100 °C, bimetal (opener), DC 12 V/6 A, DC 24 V/3 A<br />

Max. DC-bus voltage V 750 750 750 750 750 750 750<br />

Moment of inertia of rotor ring J kgm 2 2,4 x 10 -3 4,8 x 10 -3 4,8 x 10 -3 8,0 x 10 -3 8,0 x 10 -3 11,2 x 10 -3 11,2 x 10 -3<br />

Engine mass M m kg 5,5 7,4 7,4 11,8 11,8 16,2 16,2<br />

Height of stator L mm 60 80 80 120 120 160 160<br />

Height of rotor H mm 20 40 40 80 80 120 120<br />

Standard motor cable length mm 3000 3000 3000 3000 3000 3000 3000

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