The Varispeed-520B is a medium‑capacity Leonard Drive thyristor conversion unit intended for use with high‑class variable speed drives. This manual explains correct operating procedures, safety precautions, and maintenance requirements.
The document includes sections on safe‑operation warnings, ratings and specifications, wiring guidelines, test operation, adjustment, maintenance, spare parts, diagrams, and an appendix with parts lists and additional technical data.
| Drive Type (Non‑reversing) | CDMR‑L5 |
|---|---|
| Drive Type (Reversing) | CDMR‑D5 |
Lift the VS‑520B by the base to avoid dropping the main unit.
Wiring must be performed by qualified personnel.
A warning is marked with "WARNING" and a caution with "CAUTION".