Cp Sw Limit Monitoring; Function - Siemens SINUMERIK 840D Function Manual

Mc axes and spindles

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M3: Coupled axes

14.5 Generic coupling

The behavior on RESET can be set separately for each coupling module (see CPMRESET). The

coupling can be activated, deactivated or the current state can be retained.

The coupling remains active during a mode change. The coupling is suppressed (not

deselected!) only in JOG-REF mode when referencing a following axis.

Reference point approach

G74 of the following axis is not possible with an active coupling. An alarm is output.

If the JOG-REF mode is selected and the following axis is traversed, the coupling is

suppressed. The coupling is only performed after JOG-REF mode is cancelled.

The SERUPRO procedure will simulate the generic coupling and provide values for a restart.

With axial couplings, the simulation always assumes a setpoint coupling, which means, when

there is an actual value coupling, this is switched to setpoint coupling during the SERUPRO

procedure. This can mean that the simulation is not performed correctly.

Further deviations from the real procedure can occur due to increased simulation speed and

canceled axis dynamics limitations.

CP SW limit monitoring

What is the purpose of the function?

The "CP-SW limit monitoring" function improves the braking response of a following axis or a

following spindle in axis operation when approaching a software limit switch.

● This avoids that the software limit switch is passed.

● If possible, synchronous operation of the coupling is kept.

Axes and spindles

Function Manual, 06/2019, A5E47437747B AA

Sinumerik 840d sl