FB#.RES
Description
FB#.RES reports the actual encoder resolution of the feedback device. The drive calculates its value based on the encoder characteristics. It is provided in encoder counts/rev for rotary encoders and encoder counts/mm for linear encoders.
For digital-only feedbacks like incremental and HiperfaceDSL, the resolution will either be what the encoder indicates it supports or the resolution configured in the drive with FB#.ENCLINES or FB#.LINEPITCH. For feedbacks with an analog component (i.e. Sin/Cos, resolver, EnDat, etc.) the resolution will be the analog resolution including the drive’s 24-bit A/D conversion to indicate the higher resolution available.
FB#.RES is not the number of counts per revolution or pole pair for the position reported by FB#.P. FB#.PRES shows the resolution of FB#.P.
Examples
- Sin/Cos rotary configured with 1024 lines/rev in FB#.ENCLINES:
- HiperfaceDSL rotary with 18 bits single turn + 12 bits multiturn:
- EnDat Analog linear with 20,000 nm/line
Versions
Action | Version | Notes |
---|---|---|
Implemented | 02-00-00-000 |
General Information
Type |
Read Only |
Units |
Rotary: Enc Cnts/revolution Linear: Enc Cnts/mm |
Range |
N/A |
Default Value |
N/A |
Data Type |
Integer |
Stored in Non-Volatile Memory |
No |
Variants Supported
All variants are supported.