Restrictions in connection with safe communication

INFORMATION

The prioritized terminal control is not a safety-related function and therefore cannot take over a safety function of the safety options.
After a safety error, you cannot start the drive without additional configuration and controls.

When activating the prioritized terminal control, stop the fieldbus. This means that the STO function is permanently active when using safe communication. Therefore, you must not use the prioritized terminal control in conjunction with the MOVISAFE® CSB..A safety option.

Prioritized terminal control with MOVISAFE® CSL51A

You can use the prioritized terminal control in conjunction with the MOVISAFE® CSL51A safety option under the following conditions:

  • If the STO function is active, you must deactivate the STO function by activating the muting function. This is only possible if fieldbus communication is interrupted or disrupted.
  • To use the muting function, you must configure it as follows using the "Assist CS" of the MOVISUITE® engineering software:
    • Configure a safe digital input using the "muting" function.
    • In the basic settings of the safety option, set the "Selection muting" parameter to "Encoder error and F-PO".
    • Set the maximum muting time according to your application's requirements.
  • WARNING! Danger due to unexpected startup. The active "Muting F-PO" function deactivates the encoder-dependent safety sub-functions (except STO). This can cause the system to start up immediately. Severe or fatal injuries. Before activating the "Muting F-PO" function, the user must take organizational measures for the protection of personnel and the system.
  • By activating the prioritized terminal control, you trigger an error reset that resets pending device errors.
    • NOTICE! Device faults that are caused by a hardware defect, for example, may not be reset. This causes the drive to stop in the fault state. Take this behavior into account during the risk assessment.
  • If a device fault occurs during the active prioritized terminal control, you must acknowledge the fault by performing a fault reset.
    • NOTICE! Device faults that are caused by a hardware defect, for example, may not be reset. This causes the drive to stop in the fault state. Take this behavior into account in the risk assessment of the system.
  • If an error of the safety option occurs during the active prioritized terminal control, you must safely acknowledge the error by assigning a safe digital input with the parameter "acknowledge error" and activating it.
    • NOTICE! You cannot reset all errors of the safety option (e.g. hardware error, critical error). This causes the drive to stop in the fault state. Take this behavior into account in the risk assessment of the system.