Key facts
- Brand
- VLT
- Model
- FC 51
- Category
- Other device
- Industry
- Industrial
- Documents
- 3
- Languages
- ZH
- Last added
- 2012-03-21
Start here
Danfoss VLT Micro FC 51 Quick Start Guide
The guide begins with safety information, including high‑voltage warnings, required grounding, leak‑current limits and the mandatory waiting times before servicing. It then covers mechanical dimensions, mounting clearances, electrical installation, wiring of the main power and motor, and the layout of control terminals.
Subsequent sections describe basic LCP programming, menu navigation, parameter groups, and essential operating parameters such as input voltage ranges, output current limits, efficiency, and protection functions. The document also lists optional accessories and environmental limits for the VLT Micro FC 51 drive. This manual is written in Chinese.
VLT FC 51 specifications
| Input voltage | 200‑240 V |
|---|---|
| Output frequency range | 0‑200 Hz (VVC+), 0‑400 Hz (u/f) |
| Maximum continuous output current (3 × 200‑240 V) | 6.8 A |
| Efficiency (best case) | 95.6 % |
| Enclosure weight | 1.1 kg |
Source: Danfoss FC 51 Operation Manual
All VLT FC 51 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
The shortest path to a working setup, usually only a few pages.
Questions answered in these manuals
What type of fuse is recommended for the FC 51?
Use fuses rated up to 100 000 A rms and 480 V, preferably B‑type RCDs for protection, as listed in the fuse table.
What cabling is required to meet EMC regulations?
Use shielded or armored motor cables with at least 80 % shield coverage, and keep motor cables separate from control cables.
How long must I wait after disconnecting the VFD before starting maintenance?
Wait 4 minutes for M1, M2 and M3 units, or 15 minutes for M4 and M5 units before touching any live parts.
What type of RCD is required for additional protection?
Only a B‑type (time‑delayed) residual‑current device (RCD) may be used on the supply side of the drive.