The manual provides design, installation, operation, safety, and maintenance information for Yaskawa's large‑capacity Σ‑V series AC servo drives.
This user manual covers the complete lifecycle of the large‑capacity Σ‑V series AC servo drive, including system overview, panel operator functions, wiring and connection guidelines, full closed‑loop control setup, and fault diagnosis procedures. Safety precautions, warranty information, and regulatory compliance are also detailed to ensure reliable and safe operation.
The document includes extensive installation instructions, recommended cable lengths, grounding requirements, and maintenance checklists. It also provides guidance on parameter settings, auxiliary functions, and integration with upper‑level controllers, making it a comprehensive reference for engineers and technicians working with Yaskawa servo systems. This manual is written in Japanese.
| Maximum main‑loop cable length | 3 m |
|---|---|
| Maximum servo‑motor/main‑loop cable length | 50 m |
| Maximum control‑power cable length for 400 V converter | 10 m |
| Ground resistance (200 V input) | ≤ 100 Ω |
| Ground resistance (400 V input) | ≤ 10 Ω |
Never touch the internal parts of the servo unit or converter, ensure the front cover is installed before power is applied, and always follow the safety symbols and warnings in the manual.
The main‑loop cable length may be up to 3 m for signal cables, while the servo‑motor and encoder cables may be up to 50 m each.
The grounding resistance should be 100 Ω or less for a 200 V input system.
Check that parameter Pn205 is set correctly; incorrect settings can cause the alarm and lead to large position errors.