630.x Sensor defective
Description
An expected sensor signal is missing.
For example, if a certain maximum distance is exceeded without any signal coming from the reference encoder (sensor) during a reference run, the reference run is interrupted and a sensor defect is indicated.
Remedy
Check sensor and sensing distance.
Check the wiring and the sensor by measuring the sensor signal on ACOPOS (Trigger1 or 2 at X2; see also the machine’s wiring diagram).