Lenze EVD471-E one-quadrant DC drive

The Lenze EVD 470 family is documented as a one-quadrant DC drive using a thyristor bridge. The EVD471-E entry is listed at 1.3 kW and 8 A, with a 190-265 V drive supply range.

System function and position

Rebuilt from individual evidence

The Lenze EVD 470 family is documented as a one-quadrant DC drive using a thyristor bridge.

The EVD471-E entry is listed at 1.3 kW and 8 A, with a 190-265 V drive supply range.

The unit regulates DC armature power between the drive supply and the driven machine in applications such as winding or extrusion.

Unknown: installation-specific compatibility, replacement fit, and current commercial availability require separate confirmation for EVD471-E.

Exact reference: EVD471-E
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 DC armature power for a connected machine drive.
System position: Sits in the power stage between the drive supply and a DC machine armature.
Upstream / inputs: Receives the drive supply and feedback or setpoint signals used by the DC control loop.
Downstream / outputs: Delivers controlled armature voltage and current to the connected DC machine.
Limitations: Unknown: installation-specific compatibility, replacement fit, and current commercial availability require separate confirmation for EVD471-E.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

The Lenze EVD 470 family is documented as a one-quadrant DC drive using a thyristor bridge.
Confidence: high
- www.lenze-drive.ru — retrieved 2026-09-12; high confidence
The EVD471-E entry is listed at 1.3 kW and 8 A, with a 190-265 V drive supply range.
Confidence: high
- www.lenze-drive.ru — retrieved 2026-09-12; high confidence

Inferences

The unit regulates DC armature power between the drive supply and the driven machine in applications such as winding or extrusion.
Confidence: medium
Rationale: The system position is inferred from the documented product function and the stated upstream or downstream interfaces.
- www.lenze-drive.ru — retrieved 2026-09-12; high confidence

Unknowns

Unknown: installation-specific compatibility, replacement fit, and current commercial availability require separate confirmation for EVD471-E.
Confidence: low
Missing evidence: The captured sources do not establish installation-specific compatibility, replacement fit, or current commercial conditions.

System position diagram

A flow from the upstream control system through EVD471-E to the downstream machine element. — The diagram shows the documented position of the exact reference in an industrial control path.

View Mermaid source

flowchart LR\n  U["Upstream control system"] -->|"documented command or supply"| P["EVD471-E"]\n  P -->|"documented controlled output"| D["Downstream machine element"]

View diagram labels

Nodes: Lenze EVD471-E one-quadrant DC drive; Downstream machine element
Edges: Documented control path

Next action

The Lenze EVD 470 family is documented as a one-quadrant DC drive using a thyristor bridge.

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