Product Details:

KOLLMORGEN SR20200-2G604A is a rack-mounted single-axis digital servo amplifier of the SERVOSTAR SR20 series, the suffix 2G604A represents its specific firmware and interface configuration. It supports 230VAC single-phase power input, with 20A continuous current and 40A peak current, adopting high-performance IGBT power stage and fully digital closed-loop control algorithm. It accepts analog ±10V speed and torque command input, supports resolver feedback as standard, and can realize automatic load tuning for stable operation on medium-heavy load motion axes. It is widely matched with Kollmorgen Goldline permanent magnet servo motors, used on CNC machine tools, printing presses, heavy-duty rotary indexing tables and packaging automation lines, suitable for applications requiring strong torque output and stable low-speed performance.

This servo amplifier takes resolver as the main feedback, which maintains stable signal collection in dusty and oil mist workshop environments. It is equipped with RS232 service port for parameter setting, auto-tuning and firmware upgrade via Kollmorgen MotionLink software. It integrates built-in dynamic braking circuit for energy dissipation during deceleration, and supports external brake resistor matching for frequent deceleration working conditions. Separated power terminals and resolver feedback connectors facilitate shielded wiring and on-site maintenance. Onboard diagnostic functions and LED status indicators help technicians quickly locate alarms such as overcurrent, overtemperature and feedback loss.

Professional technicians can adjust loop gain, current limit and motion parameters according to load characteristics. Internal circuits continuously sample DC bus voltage, output current and module temperature. Once overload, overheating, overvoltage or resolver signal interruption is detected, the drive will cut off power output and trigger alarm to protect servo motor windings and resolver components. The mechanical structure is robust and vibration-resistant, suitable for long-cycle continuous operation of industrial automation equipment.

This KOLLMORGEN SR20200-2G604A servo amplifier has been discontinued by the original manufacturer. It is supplied as a tested aftermarket replacement spare part for legacy Goldline motion systems. Maintenance personnel can complete replacement safely after power cut, and the original motor interface and rack installation dimensions can be retained without large modification.

It is a high-current SR20 series servo drive spare part, frequently selected for maintenance and retrofit of old CNC and heavy automation equipment.

Key specifications：KOLLMORGEN SR20200-2G604A servo amplifier,230VAC single phase input,20A continuous current,40A peak current,resolver feedback,IGBT power stage,RS232 port,built-in brake circuit,rack mounting. Operating temperature range: 0°C to +45°C. It undergoes power-on test, resolver signal inspection and load aging test before shipment.

This SR20200-2G604A servo amplifier can cooperate with Kollmorgen Goldline series servo motors to realize stable closed-loop speed and torque control.