Product Description:

The H-232-G-0028 is a brushless servo drive produced by Kollmorgen within the Silverline Brushless Servo Drives series. It regulates three-phase motor currents so that industrial axes follow command profiles with tight velocity and position error bounds. By converting line voltage into controlled phase currents, the unit supplies torque on demand for pick-and-place heads, compact gantries, and other motion modules that require precise acceleration and steady-state speed.

During continuous operation, the drive delivers a phase current of 6.85 A and supports a shaft output of 162 W without derating. The copper windings have an inductance of 0.941 mH, which affects current rise, while magnetic and conductor losses appear as 0.497 Ω of line resistance. For brief moves, the drive supplies up to 17.0 A of peak current, allowing the motor to generate acceleration torque above the continuous stall torque of 0.415 N-m. Closed-loop velocity can reach 6000 rpm, although typical production duty cycles often run at the rated speed of 4150 rpm to balance speed and heat generation. The incoming line voltage has a 250 Vrms ceiling that protects the semiconductor switches. A mechanical time constant of 2.05 ms allows the rotor speed to stabilize quickly when torque changes.

The back EMF gradient is 7.21 Vpk/krpm, indicating the voltage that the controller must overcome as the motor turns. An 1.89 ms electrical time constant indicates how quickly the stator current tracks pulse-width modulation commands. Dynamic response is aided by a low rotor inertia of 0.000017 kg-m², allowing position loops to use aggressive gains without excessive overshoot. Short bursts can raise torque output to 0.93 N-m, which is roughly double the continuous rating. A thermal time constant of 8.1 minutes governs the internal temperature rise during operation and limits the duration of peak loading. Torque sensitivity is 0.0607 N-m per ampere of commanded current, allowing predictable scaling between the controller output and the resulting shaft torque.