This document introduces Schneider Electric's variable speed drive Altivar 31, which is suitable for asynchronous motors. The document provides steps for configuration, installation, and replacement, as well as recommendations for circuit diagrams and electromagnetic compatibility.
The Altivar 31 is a variable‑speed drive for asynchronous motors. This simplified manual provides the minimum steps for factory configuration, wiring, and basic operation, as well as safety and EMC recommendations.
It includes guidance on initial setup, parameter adjustment, fault handling, and optional software upgrades. The document is intended for installers and end‑users who need quick reference without the full technical manual. This manual is written in French.
| Default motor frequency (bFr) | 50 Hz |
|---|---|
| Linear ramp time (ACC, dEC) | 3 seconds |
| Small speed (LSP) | 0 Hz |
| Large speed (HSP) | 50 Hz |
| Thermal motor current (ItH) | equal to motor nominal current |
| Braking injection current (SdC1) | 0.7 × nominal current for 0.5 s |
| Switching frequency | 4 kHz |
The default motor frequency (bFr) is set to 50 Hz.