KOLLMORGEN DIGIFAS7201 Servo amplifier (servo driver）

The Kollmorgen Digifas 7201 is a high-performance digital industrial servo amplifier (servo drive) belonging to the legacy Digifas 7200 series.

Originally manufactured by Seidel (later acquired by Kollmorgen), it is specifically designed to drive 6SM series brushless synchronous servo motors.

Core Technical Specifications

Attribute    Specification

Rated Output Current    $1.5 \text{ A}_{\text{rms}}$

Rated Power (Apparent)    $0.9 \text{ kVA}$

Input Supply Voltage    $3 \times 80\text{V}$ to $400\text{V}$ AC (50/60 Hz)

Intermediate Circuit Voltage    $560\text{V}$ DC

Efficiency    Up to 95%

Protection Rating    IP20 (Indoor/Cabinet use)

DIGIFAS7201

Control Interfaces    Analog (±10V), Digital I/O, Incremental Encoder, SSI

Key Features

Motor Compatibility: Specifically optimized for 6SM synchronous brushless motors with integrated resolvers.

High Resolution: Features a 14-bit resolution for fixed setpoints, ensuring precise motion control.

Protection Mechanisms: Includes built-in protection against overvoltage (switch-off at 750V), short circuits, and thermal overload.

Communication Options: Depending on the specific variant (e.g., -CAN, -L2/DP), it can support fieldbus protocols like CANopen or Profibus DP.

Legacy Status & Modern Substitutes

Because the Digifas 7200 is a discontinued series, finding new replacement units can be difficult.   Kollmorgen typically recommends the S300 or S700 series as modern substitutes.