ExternalFaultDigitalInput Parameter

Default Value: -1

Minimum Value: -1

Maximum Value: 23

Units: None

Type: int

IMPORTANT: The controller generates an axis fault only if you set the corresponding bit in the FaultMask Parameter. When an axis fault is generated, you can configure what the axis does by changing the state of the corresponding bit in the FaultMaskDecel Parameter, the FaultMaskDisable Parameter, and the FaultMaskDisableDelay Parameter.

HARDWARE: On the iXR3 and XR3, you can use this parameter only on the first axis because all digital inputs are connected only to the first axis. As an alternative, you can use the SoftwareExternalFaultInput Parameter.

The ExternalFaultDigitalInput parameter specifies a digital input that is monitored to generate an external fault. The input polarity that causes a fault is specified by the External Fault Polarity setting of the FaultSetup Parameter.

As an alternative, you can use the SoftwareExternalFaultInput Parameter to specify a digital binary input that is monitored to generate an external fault. This input is always fail-safe, which means that the fault condition exists if the optocoupler is not driven or when the digital input is not connected.

The controller can also generate an external fault based on an analog input. To configure this fault, use the ExternalFaultAnalogInput Parameter and ExternalFaultThreshold Parameter. When the External Fault bit is set in the FaultMask Parameter, the analog input specified by the ExternalFaultAnalogInput and the digital input specified by the ExternalFaultDigitalInput are monitored to generate an external fault.

The I/O mapping of the drive you are using can limit how you configure analog and digital inputs on a fault condition. For information about how I/O is mapped to different drive types, refer to I/O Functions.