The RDC 100 is an instrument that measures the angle of rotation axis by connecting to the amplitude modulation type resolver.
The RDC 100 outputs the excitation signal to the resolver, and outputsABZ phasesignals by using the sine and cosine signals returned from the resolver.
It also calculates the angle and velocity and outputs the analog voltage corresponding to these results.
A 16-bit resolver/digital conversion IC (RDC) is used to measure angles with high accuracy.
A buffer is provided in the excitation circuit of the resolver makes it possible to drive a resolver with an impedance of 100 – 200Ω.
●Eliminates the complexity of using an R/D converter IC ●Analog voltage output proportional to angle and velocity (angle:0～10V, rotation velocity:±10V) ●ABZ phase outputs at TTL level ●Compatible for various amplitude modulation type resolvers (transformer ratio:0.286 or 0.5, input impedance:about 200Ω)
| resolver | |
| type | amplitude modulation type |
| transformer ratio | 0.286 or 0.5 (selectable by mechanical switch) |
| input impedance | about 100～200Ω |
| resolver output signal (excitation signal) | |
| signal | sine wave |
| frequency | 2 – 20kHz |
| voltage (transformer ratio 0.286) | differential 11.4Vp-p |
| voltage (transformer ratio 0.5) | differential 6.2Vp-p/td> |
| output current | 200mA maximum |
| resolver input signal (sin, cos modulation signal) | |
| voltage limit | differential 2.3～4.0Vp-p |
| current limit | 8.25μA |
| input impedance | 485kΩ |
| resolver measurement (RDC specifications) | |
| angular resolution | electable from 10,12,14,16bit |
| angle accuracy (arc min) | ±5arc min (Typical), ±10arc min(Max) |
| angle accuracy | ±0.08°(Typical)，±0.16°(Max) |
| velocity resolution | electable from 10,12,14,16bit |
| acceleration error | 30 arc min |
| filter | common mode filter |
| digital output (ABZ phase signal) | |
| voltage | 0-5V |
| resolution | selectable from 10, 12, 14 bit for electrical angle |
| pulse rate | selectable from 256, 1024, 4096 p/rev for mechanical angle |
| analog output | |
| angle voltage | 0-10V (0-360°) |
| rotation speed voltage | ±10V (±1～20000r/min) |
| rotation range | 0～20000 r/min (resolution dependent) |
| delay time | 5 – 12μs |
| general specifications | |
| PC interface | USB (USB-serial bridge) |
| insulation specification | power supply – ground ? each GND |
| power supply | DC12V (10 – 18V) |
| body case | aluminum case |
| external dimensions | W151×D150×H61 mm |
| weight | about 640g |
| operating temperature range | 0～40℃ (no condensation) |