What is the unit of LCR register in Altivar Process ATV600/ATV900 variable speed drive?
Register LCR in Altivar Process ATV600/ATV900 is in fixed point format. According to drive rating there are 2 or 1 or 0 decimal digits.
So, the unit is:
up to 15 kW : 0.01A;
18kW to 160kW : 0.1A;
220kW and more : 1A;
The reason for this is limited range of the register and accuracy of AD converters.
The LCR register in Altivar Process ATV600/ATV900 drives provides motor current feedback used for monitoring and diagnostics.
Its value is not stored as a floating‑point number but as a fixed‑point format, where the number of decimal places depends on the drive’s power rating.
The unit and decimal resolution of the LCR register is drive‑rating‑dependent:
| Drive rating (ATV600 / ATV900) | Decimal resolution | Register unit |
| Up to 15 kW | 2 decimal digits | 0.01 A |
| 18 kW to 160 kW | 1 decimal digit | 0.1 A |
| 220 kW and above | 0 decimal digits | 1 A |
Interpretation example:
- If LCR = 2534 on a 15 kW drive → 25.34 A
- If LCR = 253 on a 55 kW drive → 25.3 A
- If LCR = 25 on a 250 kW drive → 25 A
Released for: Schneider Electric Philippines
Need help?
Product Selector
Quickly and easily find the right products and accessories for your applications.
Get a Quote
Start your sales inquiry online and an expert will connect with you.
Where to buy?
Easily find the nearest Schneider Electric distributor in your location.
Help Center
Find support resources for all your needs, in one place.