R88M-K1K520F-S2 - Omron Accurax G5 1.5 kW AC servo motor

Documented AC servo-motor role for R88M-K1K520F-S2, with source-backed evidence and explicit installation boundaries.

Documented function

Rebuilt from individual evidence

System position

Unknown: Evidence boundary

Omron identifies R88M-K1K520F-S2 as an Accurax G5 AC servo motor rated at 1.5 kW, 400 V, and 2000 r/min.

The motor uses an incremental encoder and includes a brake in the documented configuration.

Omron lists rated torque of 7.16 Nm and peak torque of 21.5 Nm for the 1.5 kW 2000 r/min variant.

The motor sits downstream of its servo drive and upstream of the machine axis or load.

The incremental encoder and brake participate in the servo axis feedback and holding arrangement.

Unknown: The installed servo drive, feedback wiring, brake circuit, firmware, machine load, and site-specific compatibility are not established by the captured sources.

Exact reference: R88M-K1K520F-S2
Category: Motors / Servo
Evidence checked: 2026-09-12

System role

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

Function: Drives a controlled machine axis with the documented servo torque and speed.
System position: Sits downstream of its servo drive and upstream of the machine axis or load.
Upstream / inputs: Receives electrical power, motion commands, and a configured brake signal from the matched servo drive.
Downstream / outputs: Delivers rotary torque and incremental encoder feedback to the servo system.
Limitations: Unknown: The installed servo drive, feedback wiring, brake circuit, firmware, machine load, and site-specific compatibility are not established by the captured sources.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

Omron identifies R88M-K1K520F-S2 as an Accurax G5 AC servo motor rated at 1.5 kW, 400 V, and 2000 r/min.
Confidence: high
- industrial.omron.fr — retrieved 2026-09-12; high confidence
- www.omron-ap.com — retrieved 2026-09-12; high confidence
The motor uses an incremental encoder and includes a brake in the documented configuration.
Confidence: high
- industrial.omron.fr — retrieved 2026-09-12; high confidence
- www.omron-ap.com — retrieved 2026-09-12; high confidence
Omron lists rated torque of 7.16 Nm and peak torque of 21.5 Nm for the 1.5 kW 2000 r/min variant.
Confidence: high
- industrial.omron.fr — retrieved 2026-09-12; high confidence

Inferences

The motor sits downstream of its servo drive and upstream of the machine axis or load.
Confidence: medium
Rationale: The exact product is documented as a servo motor with defined torque and speed, placing it on the mechanical output side of a servo drive.
- industrial.omron.fr — retrieved 2026-09-12; high confidence
- www.omron-ap.com — retrieved 2026-09-12; high confidence
The incremental encoder and brake participate in the servo axis feedback and holding arrangement.
Confidence: medium
Rationale: The manufacturer lists the encoder and brake configuration alongside the motor torque data.
- industrial.omron.fr — retrieved 2026-09-12; high confidence
- www.omron-ap.com — retrieved 2026-09-12; high confidence

Unknowns

Unknown: The installed servo drive, feedback wiring, brake circuit, firmware, machine load, and site-specific compatibility are not established by the captured sources.
Confidence: low
Missing evidence: The installed servo drive, feedback wiring, brake circuit, firmware, machine load, and site-specific compatibility are not established by the captured sources.

System position diagram

Diagram showing R88M-K1K520F-S2 between Matched servo drive and Machine axis or load. — System position of R88M-K1K520F-S2 from the captured evidence.

View Mermaid source

flowchart LR
  upstream[Matched servo drive] --> unit[R88M-K1K520F-S2]
  unit --> downstream[Machine axis or load]

View diagram labels

Nodes: Matched servo drive; R88M-K1K520F-S2; Machine axis or load
Edges: Upstream control reaches the product; The product provides the documented downstream function

Next action

Decision: The captured evidence supports the documented AC servo-motor role for R88M-K1K520F-S2; verify the installed system before replacement.

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

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