Product Description:

The PRD-AM40ASID-A2 is a servo drive produced by Kollmorgen for the Servostar CD Drives series. It converts fixed-frequency mains power into controlled three-phase output for Goldline submersible servo motors, allowing precise torque, velocity, and position regulation in automated machinery. By executing nested current, velocity, and position loops within its control system, the unit supplies regulated motor power while monitoring thermal and electrical limits. This operation supports conveyor sections, coordinated axes, and process equipment that require deterministic motion control and consistent responses to changing loads.

The power stage accepts a 230 VAC three-phase supply and can draw up to 13 A on each line, resulting in an input demand of 4.6 kVA at full load. Internally, pulse-width modulation operates at 8 kHz, so the motor windings experience low current ripple and reduced acoustic noise. The drive delivers an output of 10 A per phase, providing 3.5 kVA of output capacity across its motor terminals while dissipating 132 W of heat through the heat sink and enclosure surfaces. The current loop refreshes every 62.5 µs, allowing rapid torque corrections that support the higher-level velocity loop, which updates every 250 µs. These response times limit phase lag and help the servo maintain stiffness when the axis encounters sudden load disturbances.

Protective measures include an overtemperature trip set to 80 °C on the heat sink and an overvoltage shutdown at 430 VDC on the DC bus, helping prevent damage during cooling loss or regenerative events. The position loop closes every 500 µs and uses resolver feedback to maintain accurate shaft-angle information during rapid reversals. The resolver signal also supports stable position regulation as speed and direction change under commanded motion. With a mass of 2.69 kg, the drive can be panel-mounted in a standard control cabinet without additional structural reinforcement.