MOTOROLA MVME197DP Logic control card

The rated current is the effective value for the phase current (current in the motor supply line) when generating the rated torque at the rated speed. This is possible for any length of time if the environmental conditions are correct. Stall torque M0 Nm The "stall torque" is output by the motor at the speed n0 and when the "stall current" is being drawn. This is possible for any length of time if the environmental conditions are correct. The speed n0 must be high enough so that the winding temperature in all windings is uniform and stationary (n0 = 50 min-1 for B&R motors). The continuous torque is reduced while stationary

Average speed for one cycle Torque constant KT Nm/A

 The torque constant determines the torque created by the motor with 1 Arms phase current. This value applies at a motor temperature of 20°C. When the temperature increases, the torque constant is reduced (generally to 10%). When the current increases, the torque constant is reduced (generally starting at twice the value of the rated current). Voltage constant KE V/1000min-1 The voltage constant determines the effective value (phase-phase) of the reverse voltage (EMF) induced by the motor with a speed of 1000 min-1. This value applies at a motor temperature of 20°C. When the temperature increases, the voltage constant is reduced (generally to 5 %). When the current increases, the voltage constant is reduced (generally starting at twice the value of the rated current).

                                                                        

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