R7D-AP04H - Omron SMARTSTEP A R7D-AP04H AC servo driver

Omron SMARTSTEP A R7D-AP04H AC servo driver. Documented facts, inferred system position, and evidence boundary are recorded for maintenance review.

Documented product role

Rebuilt from individual evidence

System placement

Unknown: Evidence boundary

Omron lists R7D-AP04H as an AC200V 400 W AC servo driver in the SMARTSTEP A lineup.

The Omron specification pairs the 400 W driver position with the R7M-A40030 servo motor and lists 2.6 A continuous and 8.0 A maximum output current.

The Omron documentation shows a SMARTSTEP servo driver connected to a pulse-output position-control unit and an R7M-A servo motor.

R7D-AP04H sits between a pulse-output position controller and a matched R7M-A servo motor in the motion system.

Unknown: The installed configuration, wiring, firmware, load, and site-specific compatibility are not established by the captured sources.

Exact reference: R7D-AP04H
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: Drives the matched servo motor from the documented position-control command path.
System position: Sits between the position controller and the servo motor in the motion-control system.
Upstream / inputs: Receives AC power, pulse commands, and incremental-encoder feedback from the motor.
Downstream / outputs: Supplies controlled motor power and closes the documented servo-control path.
Limitations: Unknown: The installed configuration, wiring, firmware, load, and site-specific compatibility are not established by the captured sources.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

Omron lists R7D-AP04H as an AC200V 400 W AC servo driver in the SMARTSTEP A lineup.
Confidence: high
- www.fa.omron.co.jp — retrieved 2026-09-12; high confidence
The Omron specification pairs the 400 W driver position with the R7M-A40030 servo motor and lists 2.6 A continuous and 8.0 A maximum output current.
Confidence: high
- www.fa.omron.co.jp — retrieved 2026-09-12; high confidence
The Omron documentation shows a SMARTSTEP servo driver connected to a pulse-output position-control unit and an R7M-A servo motor.
Confidence: high
- assets.omron.com — retrieved 2026-09-12; high confidence

Inferences

R7D-AP04H sits between a pulse-output position controller and a matched R7M-A servo motor in the motion system.
Confidence: medium
Rationale: The captured manufacturer evidence establishes the component function and matched system elements; the system position is an explicit inference from those facts.
- www.fa.omron.co.jp — retrieved 2026-09-12; high confidence
- www.fa.omron.co.jp — retrieved 2026-09-12; high confidence
- assets.omron.com — retrieved 2026-09-12; high confidence

Unknowns

Unknown: The installed configuration, wiring, firmware, load, and site-specific compatibility are not established by the captured sources.
Confidence: low
Missing evidence: The installed configuration, wiring, firmware, load, and site-specific compatibility are not established by the captured sources.

System position diagram

Diagram showing R7D-AP04H between the documented upstream and downstream system elements. — System position of R7D-AP04H from the captured evidence.

View Mermaid source

flowchart LR\n  upstream[Control or operator layer] --> unit[R7D-AP04H]\n  unit --> downstream[Machine system element]

View diagram labels

Nodes: Control or operator layer; R7D-AP04H; Machine system element
Edges: Documented upstream path; Documented downstream function

Next action

Decision: Omron SMARTSTEP A R7D-AP04H AC servo driver has a documented system role; verify the installed arrangement before sourcing.

Next action: compare the installed arrangement with the documented role of R7D-AP04H before service or replacement.

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