SYSTEM COMPRISING A BASE AND A HOT UNPLUGGABLE MODULE

摘要

A system including a base and a module to be inserted into this base, an electric relay to electrically disconnect the module from the base, and a blocking device that can change over from a blocking state to a release state. The system including a sensor to detect the presence of the module in the base and a blocking sensor to detect the state of the blocking device, and means for opening the relay as soon as the blocking device is released or as soon as the module is not present. The blocking device can leave its released state only when the module has been extracted from the base by a distance more than the detection distance of the presence sensor.

主权项

1. A system comprising a base and a module that can be inserted into said base to be electrically connected with this base, at least one electric relay that can be opened or closed to decouple the module from the base or to couple said module to the base respectively, a mechanical blocking device changing over from a blocking state to a release state that an operator can actuate to release the module in order to extract the module from the base, said system comprising a sensor to detect the presence of the module in the base and a blocking sensor to detect the state of the blocking device, and a device for opening the relay as soon as the blocking sensor detects that the blocking device is in the released state or as soon as the presence sensor detects that the module is not present in the base, the blocking device being arranged so that the blocking device can leave its released state only when the module has been extracted from the base by a distance more than the detection distance of the presence sensor.