PMA54Q-11100-00 Pacific Scientific
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The Pacific Scientific PMA54Q-11100-00 is a brushless servomotor from the PMA Brushless Motors series, providing a continuous stall torque of 13.5 Nm and a peak torque of 41.0 Nm. It features a 24V brake, a resolver sensor, and a closed keyway shaft type, with a motor body square of 142 mm. The motor weighs 13 kg and has a winding voltage class of 240-480V AC.
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Product Description:
The PMA54Q-11100-00 is a brushless servo motor manufactured by Pacific Scientific as part of the PMA Brushless Motors series. Designed for medium-to-high inertia loads, it serves as the rotary actuator in CNC tables, pick-and-place heads, and other closed-loop axes in automated cells. It is intended for applications that need repeatable positioning and controlled speed during frequent start-stop cycles. The housing has a 142 mm square profile that fits standard mounting flanges, and the right-angle connector arrangement helps route cables within tight machine frames. Stack length code 4 gives the motor a longer active section for higher torque in the same mounting envelope.
In continuous operation, the unit delivers 13.5 Nm of stall torque while drawing 7.4 ARMS from the drive. This steady output is supplemented by a peak capability of 41.0 Nm for short acceleration bursts, which helps the axis handle fast indexing and changing loads. That combination supports short periods of higher demand without requiring a larger motor for normal running conditions. The laminated rotor has an inertia of 2.49 × 10-3 kg·m², giving the motor a balance between responsiveness and stable motion when coupled to tables or gear stages. Windings in the 240–480 V AC class allow connection to common three-phase supply systems through the 6PP six-pin power plug.
The aluminum housing weighs 13.0 kg, so the mounting structure must support both the motor mass and the forces created during motion. A factory-installed 24 V brake holds the shaft during power loss, which is useful on vertical axes or any system that must stay in position at a stop. Position feedback is supplied by a resolver, providing analog sine-cosine signals that remain usable in high-vibration and high-temperature conditions. Torque is transmitted through a closed keyway with the key fitted, giving the coupling a positive mechanical drive. The brake and feedback package also help the drive manage controlled stopping and position monitoring during routine machine cycles.
Frequently Asked Questions about PMA54Q-11100-00:
Q: What type of brake is featured on the PMA54Q-11100-00 motor?
A: The PMA54Q-11100-00 motor includes a 24V brake for stopping and holding applications.
Q: What is the continuous stall torque rating of the PMA54Q-11100-00 brushless motor?
A: This model provides a continuous stall torque of 13.5 Nm.
Q: What sensor type is used for feedback on the PMA54Q-11100-00?
A: The PMA54Q-11100-00 uses a resolver as its sensor type.
Q: What shaft type does the PMA54Q-11100-00 brushless servomotor have?
A: This motor features a shaft with a closed keyway and is supplied with a fitted key.
Q: What is the winding nominal stall current of the PMA54Q-11100-00?
A: The winding nominal stall current for this model is rated at 7.4 ARMS.
