S200: Smart Feedback Device (SFD) Specifications
NOTE: Unless otherwise specified, the specifications are worse-case limits and apply over the specified operating ambient temperature and over the specified operating line voltage.
Position Signal
Parameter |
Rating |
Resolution/Rev (arc min) |
24 bits = 0.0013 |
| Repeatability (arc min RMS) | < ± 2-19 Rev = ± 0.04 |
| Noise | |
| No Filtering (arc min RMS) | < ± 2-17 Rev = ± 0.16 |
| 150 Hz Single Pole Filtered (arc min RMS) | < ± 2-18 Rev = ± 0.08 |
| 10 Hz Single Pole Filtered (arc min RMS) | < ± 2-19 Rev = ± 0.02 |
| DC Offset Temperature Drift | < ± 2-18 Rev/° C = 0.08 arc min/° C |
| Absolute Accuracy | |
| AKM1 (arc min) | ± 2-10.3 Rev = ± 17 |
| AKM2 or 3, 4 (arc min) | ± 2-11.1 Rev = ± 10 |
| Communications Update Period (µs) | 51.2 |
Velocity Signal
Parameter |
Rating |
Resolution (rpm) |
< 0.001 |
| Quanta (rpm) | 0.07 |
| Noise | |
| No Filtering (arc min RMS) | < 4 |
| 150 Hz Single Pole Filtered (arc min RMS) | < 0.6 |
| 10 Hz Single Pole Filtered (arc min RMS) | < 0.06 |
| DC Accuracy | |
| Typical at 25° C (%) | ± 0.01 |
| Worse case (%) | ± 0.05 |
| Ripple | |
| AKM1 (% p-p at 1200 rpm) | 2.5 |
| AKM2, 3, 4 (% p-p at 1200 rpm) | 1.5 |
| Offset (rpm) | < 0.0001 |
| Communications Update Period (µs) | 51.2 |
| Hardware Interpolation Period (µs) | 0.1 |
Emulated Encoder Output Signals
Parameter |
Rating |
Available Resolutions (PPR) |
|
| Binary | 128, 512, 1024, 2048, 4096, 8192, 16384, 32768 |
| Decimal | 125, 500, 1000, 2000, 2500, 5000, 10000, 20000 |
| Maximum Output Line Frequency (MHz) | 2.5 |
| Max Recommended Speed at 32768 PPR (rpm) | 2200 |
| Max Recommended Speed at 16384 PPR (rpm) | 4600 |
| Max Recommended Speed at 4096 PPR (rpm) | 18300 |
| Marker Pulse Width | ~ 1 Quadrature Pulse |
General SFD Specifications
Parameter |
Rating |
-3 dB Bandwidth (Hz) |
> 2000 |
| -45° Phase Lag (Hz) | > 1000 |
| Max Tracking Rate (rpm) | > 48600 |
| Max Recommended Rate (rpm) | 25000 |
| Max Tracking Acceleration (rpm/sec) | > 16 x 106 |
| Maximum Feedback Cable Length | 50 m (164 ft) |