Behavior of the software limit switches

The behavior when approaching a software limit switch depends on the selected operating mode, the use of the fieldbus connection, and the configuration of the operating modes.

  • Jog/operating mode 100
  • The jog operating mode stops exactly on the software limit switches, which means it reaches them at speed 0 and uses the deceleration ramp of the operating mode. Afterwards, the corresponding fault message is set:
    • 16#7613 – Positive software limit switch hit.
    • 16#7614 – Negative software limit switch hit.
  • If the actual position is already outside of the software limit switch positions at the beginning, no movement takes place and one of the aforementioned error messages is set.
  • Speed specification (velocity)/operating mode 101
  • Upon reaching the software limit switch, one of the following errors is set and the error response configured in the "Controller functions" configuration menu in the "Basic settings" submenu is set. The position of the software limit switch is exceeded.
    • 16#7613 – Positive software limit switch hit.
    • 16#7614 – Negative software limit switch hit.
  • If the actual position is already outside of the software limit switch positions at the beginning, no movement takes place and one of the aforementioned error messages is set.
  • Absolute positioning/operating mode 400
  • Target position monitoring on
  • If the target position monitoring is active or if operating mode 400 is used, the following error message is set in the case of a setpoint position outside of the software limit switch. Furthermore, no movement takes place.
    • 16#760A – Target position beyond software limit switches
  • If the actual position is already outside of the software limit switch positions at the beginning, no movement takes place and the aforementioned error message is set.
  • Target position monitoring off
  • If the target position monitoring is not used, one of the following errors is set, and the error response configured in the "Controller functions" configuration menu in the "Basic settings" submenu is set upon reaching the software limit switch. The position of the software limit switch is exceeded.
    • 16#7613 – Positive software limit switch hit.
    • 16#7614 – Negative software limit switch hit.
  • If the actual position is already outside of the software limit switch positions at the beginning, no movement takes place and one of the aforementioned error messages is set.
  • Relative positioning/operating mode 401
  • Target position monitoring on
  • If the target position monitoring is active, the following error message is set in the case of a setpoint position outside of the software limit switch. Furthermore, no movement takes place.
    • 16#760A – Target position beyond software limit switches
  • If the actual position is already outside of the software limit switch positions at the beginning, no movement takes place and the aforementioned error message is set.
  • Target position monitoring off
  • If the target position monitoring is not used, one of the following errors is set, and the error response configured in the "Controller functions" configuration menu in the "Basic settings" submenu is set upon reaching the software limit switch. The position of the software limit switch is exceeded.
    • 16#7613 – Positive software limit switch hit.
    • 16#7614 – Negative software limit switch hit.
  • If the actual position is already outside of the software limit switch positions at the beginning, no movement takes place and one of the aforementioned error messages is set.
  • Direct coupling
  • The master first reaches its software limit switch
  • If the master reaches the software limit switch before its slave, the slave stops without an error.
  • The slave is outside of its software limit switch from the start
  • If the slave is already located outside of the software limit switch positions before the master starts moving, one of the following errors is set, and no slave movement takes place. However, the master starts its movement.
    • 16#7613 – Positive software limit switch hit.
    • 16#7614 – Negative software limit switch hit.
  • The slave reaches its software limit switch before the master
  • Upon reaching the software limit switch, one of the following errors is set and the error response configured in the "Controller functions" configuration menu in the "Basic settings" submenu is set. The position of the software limit switch is exceeded. Nevertheless, the master continues its movement.
    • 16#7613 – Positive software limit switch hit.
    • 16#7614 – Negative software limit switch hit.