Product Description:

The SERVOSTAR Pico Drive from Kollmorgen is a compact digital servo amplifier in the PD Servostar Servo Drives series. It conditions control signals, modulates motor phase current, and closes high-speed feedback loops so brushless servomotors can follow commanded torque, speed, and position in industrial automation cells. By integrating conversion electronics, loop processors, and power stages inside one housing, the unit supports space-limited multi-axis packaging lines, pick-and-place gantries, and precision assembly platforms.

Signal fidelity starts with an A/D converter that resolves references to 14-bit, and the command interface accepts a full-scale range of ±10 VDC. The current loop updates every 16 kHz, the position loop closes at 2 kHz, and the velocity loop sits between them at 4 kHz for smooth motion transitions. Pulse-width modulation of the output bridge also runs at 16 kHz to reduce acoustic noise. Control electronics draw from a 24 VDC logic rail, while the feedback port supplies 5 V to the encoder and can source 250 mA for sensing electronics. These resources converge to keep phase current, rotor position, and commanded trajectory synchronized with minimal latency.

A high-speed decoder accepts encoder streams up to 3 MHz, preserving resolution even on fine-pitch linear scales. At startup a soft-charge circuit limits inrush to 30 A and completes in 0.25 s; this protects upstream supplies before full DC-link energy is applied. Operation is halted if internal temperature reaches 80 °C. Physically the drive is 140 mm tall, 108 mm wide, and 51 mm deep, yet its mass is only 0.55 kg, allowing several units to mount side-by-side on DIN rail without overloading the panel. These mechanical and thermal boundaries finalize the control profile established by the preceding loop parameters.