This manual provides the user manual of Altivar 71 network braking units, including installation, setup, inspection, etc.
This manual explains the safety precautions and required qualifications for installing, adjusting, repairing, and maintaining the Altivar 71 network braking unit. It emphasizes the need to disconnect power, use insulated tools, and verify that DC bus voltage is below 45 VDC before any work.
The guide covers step‑by‑step setup, including checking the catalog number, verifying line voltage compatibility, mounting the unit, wiring to a three‑phase supply, connecting to the drive DC bus and control cable, and performing starting tests. Additional sections address sizing, dimensions, mounting conditions, electrical installation recommendations, EMC considerations, and troubleshooting procedures.
| Power range (7‑45 kW) | 100 µF |
|---|---|
| Power range (160‑200 kW) | 420 pF |
| Maximum DC bus voltage difference | ≤ 100 VDC |
| Inductance per unit length of power cables | ≈ 0.6 µH/m |
The inductance must be limited so that the resulting potential difference on the DC bus does not exceed 100 VDC.