StoPulseFilter Parameter

Default Value: 1

Minimum Value: 1

Maximum Value: 100

Units: time milliseconds

Type: int

HARDWARE: This parameter applies only to drives that have Safe Torque Off (STO) inputs.

IMPORTANT: The software functionality supplied by the Emergency Stop fault is not safety rated. For information about the STO hardware feature that is safety rated, refer to the hardware manual for your drive.

Use the StoPulseFilter parameter to specify the maximum width of a pulse that the drive will ignore on the Safe Torque Off (STO) inputs. Because the StoPulseFilter parameter specifies the minimum quantity of time that the STO inputs must be off before the controller generates an Emergency Stop fault, you can apply short diagnostic pulses to the STO inputs without the controller generating a fault.

Set the StoPulseFilter parameter to the same value on all system axes. When the controller generates an Emergency Stop Fault Axis Fault on an axis, it automatically generates the fault on all system axes on which the corresponding bit is set in the FaultMask Parameter.

In a typical configuration that uses Safe Torque Off (STO), the controller generates an Emergency Stop fault when you remove power from one or both of the STO inputs. As a result, the drive does a controlled stop and disables the axis before the hardware enters the STO state.

For more information about how the software parameters are usually configured with STO, refer to the hardware manual for your drive. You can download your manual from the Manuals & Help Files section of www.aerotech.com.