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SGDA-01AS - Yaskawa SGDA-01AS Sigma servo amplifier

Evidence-backed servo drive role for SGDA-01AS, with explicit installation boundaries.

Documented function

Rebuilt from individual evidence

System position

Unknown: Evidence boundary

Yaskawa identifies SGDA-01AS as a Sigma-series AC servo amplifier with the 01 capacity code for 100 W and a 200 V supply.

The SGDA model documentation distinguishes analog speed or torque control from digital position control and lists an applicable SGM servomotor family.

Yaskawa's SGDA wiring documentation shows the servopack connected to a host controller or external circuit and to a servomotor.

The drive sits between the upstream controller and the matched servo motor in the documented axis.

The drive converts controller references into controlled electrical output for the matched servo motor.

Unknown: The installed motor pairing, encoder type, parameter set, and machine load are not established by the captured sources.

Exact reference
SGDA-01AS
Category
Drives / VFD
Evidence checked
2026-09-12

System role

This section explains what the product does and where it acts in the surrounding system.

Function
Controls an SGM servomotor through the documented speed, torque, or position command path.
System position
Sits between the host controller and the connected SGM servomotor in the servo axis.
Upstream / inputs
Receives speed, torque, or position commands from the upstream host controller.
Downstream / outputs
Drives the connected SGM servomotor so the axis can produce controlled motion.
Limitations
Unknown: The installed motor pairing, encoder type, parameter set, and machine load are not established by the captured sources.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

  • Yaskawa identifies SGDA-01AS as a Sigma-series AC servo amplifier with the 01 capacity code for 100 W and a 200 V supply.

    Confidence: high

  • The SGDA model documentation distinguishes analog speed or torque control from digital position control and lists an applicable SGM servomotor family.

    Confidence: high

  • Yaskawa's SGDA wiring documentation shows the servopack connected to a host controller or external circuit and to a servomotor.

    Confidence: high

Inferences

  • The drive sits between the upstream controller and the matched servo motor in the documented axis.

    Confidence: medium

    Rationale: The documented product type, interfaces, and motor or controller relationships support this system position.

  • The drive converts controller references into controlled electrical output for the matched servo motor.

    Confidence: medium

    Rationale: The documented control interfaces and motor or feedback connections support this signal and power path.

Unknowns

  • Unknown: The installed motor pairing, encoder type, parameter set, and machine load are not established by the captured sources.

    Confidence: low

    Missing evidence: The installed motor pairing, encoder type, parameter set, and machine load are not established by the captured sources.

System position diagram

Diagram showing SGDA-01AS between a motion controller and a matched servo motor.

Reading limit: system position only, not a wiring or safety drawing.

System position of SGDA-01AS from the captured evidence.

Enlarged system diagram

Diagram showing SGDA-01AS between a motion controller and a matched servo motor.

System position of SGDA-01AS from the captured evidence.

View Mermaid source
flowchart LR
  controller[Motion controller] --> unit[SGDA-01AS]
  unit --> motor[Matched servo motor]
View diagram labels
Nodes
Motion controller; SGDA-01AS; Matched servo motor
Edges
Upstream control reaches the product; The product provides the documented downstream function

Next action

Decision: The captured evidence supports the documented servo drive role for SGDA-01AS; verify the installed system before replacement.

Next action: Match the exact reference, compatible controller or amplifier, feedback arrangement, and site conditions against the cited documents before sourcing.

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