2VM61-000-1 Pacific Scientific
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Pacific Scientific 2VM61-000-1 is a servomotor in the Low Inertia PMDC Servomotors series. It features a rated torque of 25 oz-in and a continuous stall torque of 31 oz-in, with a rated voltage of 24 V. The motor weighs 3.0 pounds and has a mechanical time constant of 1.8 ms.
Internal Product Review
The 2VM61-000-1 is a Pacific Scientific low inertia PMDC servomotor with a 24 V rating and 25 oz-in rated torque. Fast electrical and mechanical response from a 0.13 ms electrical time constant and 1.8 ms mechanical time constant supports precise servo tuning. A 31 oz-in continuous stall torque gives the motor strong low-speed authority, making the unit an excellent choice for responsive motion systems.
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Product Description:
The 2VM61-000-1 is a low-inertia permanent-magnet DC servomotor produced by Pacific Scientific and placed within the Low Inertia PMDC Servomotors series. The motor is intended for use in industrial automation axes that call for rapid acceleration with modest continuous load, such as indexing tables or small pick-and-place actuators. Its light rotor allows control loops to command quick velocity changes while the permanent-magnet field supplies stable torque without external excitation.
At its nominal operating point, the motor delivers 25 oz-in of rated torque when a 24 V supply is applied to the armature. For applications that need extra margin during start-up, the design permits a 46 A pulse current, and the windings present only 100 µH of inductance, so current rises quickly when the drive issues a step command. Maximum sustained load is limited by the 31 oz-in continuous stall torque, a value set by the thermal capacity of the winding and housing. Beyond these current-related figures, the torque constant is 5.8 oz-in/A, which allows direct torque estimation from commanded current. Thermal resistance of 2.13 °C/W must be considered when sizing heat sinks or airflow to keep the winding temperature within rating.
During prolonged duty, the motor can dissipate 61 W of power, so average current should stay below that thermal ceiling. Dynamic response is supported by an 0.13 ms electrical time constant and a 1.8 ms mechanical time constant, keeping lag between command and shaft motion minimal in high-bandwidth servo loops. The assembly weighs only 3.0 lb, which eases mounting on small moving carriages and reduces reflected mass in gantry systems. For continuous operation, ambient temperature and airflow should be considered so the winding temperature remains within the allowable limit.
