Can the old ATV71 chokes be used with the modern ATV600 and ATV900 process drives?
No, ATV61/ATV71 chokes should not be repurposed for ATV600/ATV900 drives.
| Feature | ATV61/ATV71 Motor Choke (VW3A5103) | ATV600/ATV900 dv/dt Filter (VW3A5304) |
|---|---|---|
| Intended Drive Range | Altivar 61 / Altivar 71 | Altivar Process 600 / Altivar Process 900 |
| Compatibility with ATV600/900 | Not recommended | Recommended |
| Circuit Type | L (Inductor only) | LC (Inductor + Capacitor) |
| Inductance | 80 µH | 180 µH |
| Capacitance | N/A | 0.087 µF |
| Maximum Cable Length (Unshielded) | 200 m | 500 m |
| Maximum dv/dt | 750 V/µs | 1000 V/µs |
| Performance | Older technology | More efficient design |
| Schneider Electric Recommendation | Do not reuse with ATV600/900 drives | Use for ATV600/900 applications with longer motor cables |
| Validation Testing on ATV630D15N4 | Not tested | Fully documented solution |
| Warranty/Performance Assurance | Cannot be assured | Supported and recommended |
Key Points
- The VW3A5103 (ATV61/ATV71) and VW3A5304 (ATV600/ATV900) are fundamentally different products.
- For an ATV630D15N4 with long motor cable runs (e.g., 120 m SWA cable), Schneider Electric recommends the VW3A5304 dv/dt filter to reduce overvoltage and high dv/dt at the motor terminals.
- Using the older choke with an ATV600/900 drive is undocumented and untested, so correct operation cannot be guaranteed.
Released for: Schneider Electric UK
