This document provides a user's manual for the resistance braking units of Schneider Electric's Altivar 61/71 series, including installation, wiring, parameter settings, and fault diagnosis.
This manual provides the safety precautions, installation steps and wiring instructions for the Altivar 61/71 resistance braking units. It emphasizes the need for qualified personnel, proper grounding and verification of DC‑bus voltage before any work.
The document also details the electrical characteristics, selection criteria and braking calculations for the units, helping users choose the correct resistance and configure the drive for safe operation. This manual is written in French.
| Nominal network voltage | 380‑480 V (‑15 % to +10 %) |
|---|---|
| Maximum DC bus voltage | 850‑1100 V |
| Continuous power rating | 200‑400 kW |
| Braking power range | 420‑750 kW |
| Cycle time (VW3 A7 101/102) | < 240 s |
Disconnect the power supply, wait at least 15 minutes for the DC bus to discharge, and verify that the bus voltage is below 60 V before any intervention.
The nominal network voltage should be between 380 V and 480 V (‑15 % to +10 %).
The unit can handle a continuous power of 200 kW to 400 kW depending on the model.