PMA52Q-00100-00 Pacific Scientific
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The Pacific Scientific PMA52Q-00100-00 is a servomotor from the PMA Brushless Motors series, featuring a smooth shaft and a right-angle connector orientation. It is equipped with a resolver sensor type, supports a 6-pin power connector, and has a winding voltage class of 240 to 480 volts AC. The motor body square measures 142 mm and its winding nominal stall current is 7.4 ARMS.
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Product Description:
The PMA52Q-00100-00 is a brushless servomotor produced by Pacific Scientific within the PMA Brushless Motors series. It is intended for integration with digital drives that require responsive torque and accurate speed regulation across medium-inertia loads. By converting three-phase power into controlled mechanical rotation, this motor serves as the actuation element in packaging lines, indexing tables, and light material-handling axes used throughout industrial automation. Its electrical design accommodates high-voltage winding classes, while resolver feedback supports precise closed-loop positioning under vibration and electrical noise.
The winding has a continuous stall current rating of 7.4 A RMS, indicating that the drive must supply this current without tripping its limits during prolonged holding conditions. The insulation is suitable for the 240–480 V AC voltage class, allowing operation with compatible high-voltage amplifiers. The motor has a 142 mm square frame, simplifying installation with gearboxes and adapter plates that use the same mounting pattern. Power and feedback conductors exit through a right-angle connector orientation, reducing cable bending where the conductors meet the housing. Because the motor has no brake, an external mechanical device must restrain a static load when power is removed, or the drive must maintain holding torque while the system remains energized.
Rotation is transmitted through a smooth shaft, eliminating the need for a key and reducing fretting between the shaft and clamping couplings during cyclic operation. Position data is generated by a resolver, which supplies sine-cosine signals that remain accurate under vibration and electrical interference. Three-phase power reaches the windings through a 6PP six-pin power connector, providing separate connections for the required power conductors. The magnetic core has a stack length code of 2, balancing torque density and rotor inertia for machines that require rapid indexing without excessive rotating mass. This configuration supports direct coupling arrangements where accurate alignment and secure shaft clamping are maintained by the connected mechanical assembly.
