Detailed description
2.2 Emergency stop control elements
Basic logic functions: Emergency Stop (N2)
8
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Exceptions
No emergency stop device is required on machines:
•
Where an emergency stop device would not reduce the risk, either because the shutdown
time would not be reduced or because the measures to be taken would not be suitable for
controlling the risk.
•
that are held and operated manually.
Notice
The machine manufacturer is expressly directed to comply with the national and
international standards. The SINUMERIK controllers support the machine manufacturer
in the implementation of the emergency stop function according to the specifications in
the following function description. But the responsibility for the emergency stop function
(its triggering, sequence, and acknowledgment) rests exclusively with the machine
manufacturer.
2.2
Emergency stop control elements
EN standard
In accordance with EN 418, emergency stop control elements must be designed so that they
latch mechanically on their own and are easy for the operator and others to actuate in the
event of an emergency.
The following list includes some possible types of control elements:
•
Mushroomhead pushbutton switches
•
Wires/cables, cords, rods
•
Puller grips
•
In special cases: Footoperated switches without protective covers
Emergency stop button and control
Actuation of the emergency stop button or a signal derived directly from the button must be
routed to the controller (PLC) as a PLC input.
In the PLC user program, this PLC input must be forwarded to the NC on the interface
signal:
DB10, DBX56.1 (Emergency stop).
Resetting of the emergency stop button or a signal derived directly from the button must be
routed to the controller (PLC) as a PLC input.
In the PLC user program, this PLC input must be forwarded to the NC on the interface
signal:
DB10, DBX56.2 (Acknowledge emergency stop).
Summary of Contents for SINUMERIK 840D sl
Page 282: ...Index Basic logic functions Acceleration B2 64 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 388: ...Basic logic functions Travel to fixed stop F1 Function Manual 11 2006 6FC5397 0BP10 2BA0 52 ...
Page 962: ...Index Basic logic functions Emergency Stop N2 20 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1704: ...Constraints Basic logic functions Spindles S1 94 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1716: ...Index Basic logic functions Spindles S1 106 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1996: ...Index Basic logic functions Tool Offset W1 208 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2150: ...Table of contents Basic logic functions Appendix 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2184: ...Glossary Basic logic functions Appendix 38 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
