Corrected from:
PLC Designer V3.5
Library L_SM3_DriveUtil V3.5
Response of the new version?
If the feedback system (measuring system) signals an error or if the communication between Controller and drive is interrupted, the Axis is homed information is reset, i.e. the xIsHomed output of the FB L_SMC_AxisBasicControl changes to FALSE.
Which products are affected?
PLC Designer V3.3
Library L_SM3_DriveUtil (version 3.3.0.0)
What happens?
By means of the 3200 C or p500 controller a system-controlled homing can be carried out via the L_SMC_Home block. The Axis is homed information is provided in the AxisRef data. The FB L_SMC_AxisBasicControl provides the application with this information via the 'xIsHomed' output.
In case of a resolver error the Axis is homed information is not reset, i.e. the xIsHomed output remains TRUE.
When does the problem occur?
The Axis is homed information is not reset if the feedback system (measuring system) signals an error or if the communication between controller and drive is interrupted.
Diagnostic options?
None
Short-term measures/recommendations?
Use the workaround described in the L_SupplementaryAxisIsHomed function block to delete homing information.
Evaluation
A resolver error does not lead to a reset of the Axis is homed information.
