Method for updating elevator shaft configuration data

Method for updating elevator shaft configuration data in an elevator control system, whereby either after detecting a loss of integrity of the shaft configuration during elevator operation or on request, e.g. after the change of elevator shaft components, the following succession of steps is performed:

• the elevator is taken out of normal operation,
• the elevator control system performs an observation run along the elevator shaft and/or manually shaft locations needing an update are input manually,
• during the observation run run-time data of the shaft configuration are detected,
• the detected run-time data are compared to the existing shaft configuration data to obtain any data discrepancies, whereby the locations of the data discrepancies are determined,
• a subsequent low-speed partial configuration run is performed with a speed below elevator's nominal speed only in the zone(s) of locations of data discrepancies and/or of manually inputted locations needing an update,
• new configuration data obtained in the low-speed partial configuration run are combined with the existing configuration data to complete the shaft configuration data update.