Information about the product

Preventa safety modules XPSVNE for zero speed detection are used to detect the stop condition of electric motors. Their most common applications include: providing the unlock signal for electrically interlocked sliding or removable machine guards, controlling rotation direction signals for reversing motors and engaging locking brakes after a motor has come to a stand still.As electric motors run down, a remanent voltage is produced in the windings of the motor due to residual magnetism. This voltage is proportional to the speed of the motor and, therefore, decreases as the motor comes to a stand still.This remanent voltage is measured in a redundant manner so as to detect the stop condition of the motor. The cabling between the motor windings and the inputs of theXPSVNE module is also monitored to prevent a cabling breakage or fault being seen as a stopped motor. A transformer should not be used to connect the motor to terminals Z1, Z2 and Z3since there is no monitoring of the connection with the motor winding via the resistance monitoring.

CAD Data