Detailed description
2.3 Emergency stop sequence
Basic logic functions: Emergency Stop (N2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
9
Connection Conditions
See the hardware configuration guide (Operator Components Manual) for information on
connecting the emergency stop button.
References:
/BH/ Equipment Manual Operator Components
2.3
Emergency stop sequence
EN 418 standard
After actuation of the emergency stop control element, the emergency stop device must
operate in the best possible way to prevent or minimize the danger.
"In the best possible way" means that the most favorable delay rate can be selected and the
correct stop category (defined in EN 60204) can be determined according to a risk
assessment.
Emergency stop sequence
Sequence in the NC
The predefined (in EN 418) sequence of internal functions implemented to obtain the
emergency stop state is as follows in the control system:
1.
Part program execution is interrupted.
All machine axes are braked in the relevant axis-specific parameterized time:
MD36610 $MA_AX_EMERGENCY_STOP_TIME (time of braking ramp in event of errors).
The maximum brake ramp that can be achieved is defined by the maximum brake current
of the respective drive. The maximum brake current is achieved by setting a setpoint = 0
(fast braking).
2.
Reset interface signal
DB11, ... DBX6.3 (Mode group ready).
3.
Set the interface signal:
DB10, DBX106.1 (Emergency stop active).
4.
Alarm: "3000 Emergency Stop" is displayed.
5.
The controller enables of the machine axes are reset, once a parameterized time has
lapsed in the machine data:
MD36620 $MA_SERVO_DISABLE_DELAY_TIME (switchoff delay controller enable).
Please note the configuration rule below:
MD36620 ≥ MD36610
6.
All machine axes are switched to follow-up mode within the control.
The machine axes are no longer in position control during this.
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 ...