MDFKARS090-22 Lenze forced-ventilated asynchronous servo motor

Okmarts identifies MDFKARS090-22 as a Lenze servo motor rated at 6.9 kW, 390 V, 15.8 A, 19 Nm, 120 Hz, and 3480 RPM. SPEA identifies the exact reference as a forced-ventilated asynchronous servo motor with resolver feedback.

System role and interfaces

Rebuilt from individual evidence

Evidence boundary

Okmarts identifies MDFKARS090-22 as a Lenze servo motor rated at 6.9 kW, 390 V, 15.8 A, 19 Nm, 120 Hz, and 3480 RPM.

SPEA identifies the exact reference as a forced-ventilated asynchronous servo motor with resolver feedback.

System inference: At system level, this unit is the rotary actuator between the servo drive and the machine axis. This placement is an inference from the cited facts.

Unknown: installation fit, feedback wiring, and commissioning limits require separate evidence.

Exact reference: MDFKARS090-22
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: Converts controlled electrical input into rotary shaft motion as a servo motor.
System position: Sits downstream of a servo drive and upstream of the machine axis.
Upstream / inputs: Receives controlled electrical power and motion commands from the servo drive.
Downstream / outputs: Delivers rotary shaft torque to the driven machine.
Limitations: Unknown: installation fit, feedback wiring, and commissioning limits require separate evidence.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

Okmarts identifies MDFKARS090-22 as a Lenze servo motor rated at 6.9 kW, 390 V, 15.8 A, 19 Nm, 120 Hz, and 3480 RPM.
Confidence: high
- okmarts.com — retrieved 2026-09-12; high confidence
SPEA identifies the exact reference as a forced-ventilated asynchronous servo motor with resolver feedback.
Confidence: medium
- www.spea-servis.cz — retrieved 2026-09-12; medium confidence

Inferences

At system level, this unit is the rotary actuator between the servo drive and the machine axis.
Confidence: medium
Rationale: The system position is an inference from the exact product classification and the documented motor or starter function.
- okmarts.com — retrieved 2026-09-12; high confidence
- www.spea-servis.cz — retrieved 2026-09-12; medium confidence

Unknowns

Unknown: installation fit, feedback wiring, and commissioning limits require separate evidence.
Confidence: low
Missing evidence: The captured sources do not establish installation-specific compatibility, service condition, or commissioning limits.

System position diagram

Diagram showing MDFKARS090-22 between its upstream control or supply and the downstream motor or machine axis. — System position of MDFKARS090-22 derived from the cited product function.

View Mermaid source

flowchart LR\n  drive[Servo drive] --> unit[MDFKARS090-22]\n  unit --> machine[Machine axis]

View diagram labels

Nodes: Servo drive; MDFKARS090-22; Machine axis
Edges: Drive command to motor input; Motor torque to machine axis

Next action

Use the documented forced-ventilated asynchronous servo motor role as the evidence-supported starting point; verify the installed unit before service, replacement, or commissioning.

Unknown: installation fit, feedback wiring, and commissioning limits require separate evidence.

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