Siemens SINUMERIK 840D sl Function Manual page 351

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Response to RESET and function abort

Response to RESET

During selection (fixed stop not yet reached) the function FXS can be aborted with RESET.

The termination is carried out such that an "almost achieved" fixed stop (setpoint already

beyond the fixed stop, but still within the threshold for the fixed stop detection) will not result

This is achieved by synchronizing the position setpoint to the new actual position. As soon

as the fixed stop is reached, the function remains operative even after RESET.

Function abort

A function abort can be triggered by the following events:

• EMERGENCY STOP:

• The fixed stop monitoring function responds in the case of:

Basic logic functions: Travel to fixed stop (F1)

Function Manual, 11/2006, 6FC5397-0BP10-2BA0

– With an 840D control, the NC and drive are disconnected from the supply after

EMERGENCY STOP, i.e. the PLC must react.

– With an 840Di control, the NC and drive are disconnected from the supply after

EMERGENCY STOP, i.e. the PLC must react.

Make sure that after canceling the function

"travel to fixed stop" by "EMERGENCY STOP," no dangerous machine situation

(MD37002 $MA_FIXED_STOP_CONTROL e.g. canceling pulse disable) can arise.

– Exit from fixed stop position by axis

– Tool breakage

– Pulse disable

Detailed Description

2.1 General functionality

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