Position measuring device and method for operating the position measuring device

摘要

The device (1) has a scanning unit (3) that generates output signals, such that an angle or rotation associated with the relative movement of measuring standard (2) and scanning unit is determined. A monitoring device monitors the rotary bearing for occurrence of bearing faults. The monitoring device detects and analyzes a measured variable for different relative positions of measuring standard relative to a detector device (35) of scanning unit, in order to determine deviations from a set-point behavior of measured variables of relative positions. The device has a scanning unit that scans measuring standard for position-determination. The measuring standard or scanning unit is rotationally mounted in a rotary bearing (4), so that the measuring standard and the scanning unit are rotated with each other during an operation of device. An independent claim is included for a method for operating position measuring device.