| 摘要 |
Absolute-measuring position transducer system for an industrial robot which has one unit for each robot axis with a resolver (32) mechanically coupled to the axis movement. The unit has a revolution counter (405) which, on the basis of the resolver signals, continuously indicates within which revolution the resolver is, and an R/D converter (406) for accurate determination of the resolver position within each revolution. During normal operation the resolver is supplied from an oscillator (403). In case of drop out of the supply voltage to the axis unit, the resolver is switched for pulse mode operation via a second oscillator (404) and the R/D converter is disconnected. The second oscillator (404) and the revolution counter (405) are then supplied from an accumulator battery (402). |
