Festo CMSX Series - Operation; 9.7 Check Sensing Range; 9.8 Perform Initialisation; 9.9 Complete Commissioning

5. Switch on the compressed air.
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During initial commissioning:
– Positioner starts in automatic mode with the factory settings.
– Positioner is not initialised (display "NO INIT").
– The positioner does not respond to external setpoint specifications.
During subsequent commissioning:
– Positioner starts in the last effective mode of operation.
– If the closed-loop controller (automatic mode or manual setpoint position specification) is
activated, the current setpoint value is valid immediately.
9.7 Check sensing range of the path/angle sensor
1. Use the 'Add' and 'Sub' pushbuttons to approach the two end positions.
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The signal from the position/angle sensor is shown as a plus sign in the upper line of the dis-
play. If the positioner has already been initialised, the actual position (AP = Actual Position) is
displayed in the bottom line
è 9.3.1 Representation of operating modes in the digital display.
2. Continue commissioning with automatic initialisation è 9.8 Perform initialisation.
9.8 Perform initialisation
The permissible stroke range and the controller parameters are determined during initialisation. Both
end positions are approached in succession independently from the pending setpoint value. The posi-
tioner can only be initialised automatically.
Automatic initialisation ("A-Init") must be performed in the following cases:
– during commissioning
– after changes in the system structure
– after a factory reset
1. Press and hold the Set and Add pushbuttons for 3 seconds.
Depending on the actuator, the initialisation may take several minutes. During initialisation the
display shows "running".
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After successful completion of the initialisation, the display shows "success".
If an error message is displayed ("fail"), the initialisation has failed. Clear the causes of errors
(è 11 Malfunctions) and restart automatic initialisation.
2. Go to the base menu level and start the positioner in operation è 9.6 Commissioning positioner.
9.9 Complete commissioning
1. Replace the housing cover (è Fig.1, 1 or è Fig.2, 1). Note the correct position of the seal.
2. Tighten 4 housing screws (è Fig.1, 3 or è Fig.2, 3).
– Tightening torque: 1.5Nm
10 Operation
• Observe the operating conditions.
• Observe limit values.
After the supply voltage is switched on, the positioner is in the same operating status and the same
operating mode that was valid before the supply voltage was switched off.
Operation
50 Festo — CMSX-...-C-U-F1-... — 2019-09d