Siemens SINUMERIK 808D Function Manual

Function Manual
148 01/2017
Note
Particular reference should be made to the following standards for the EMERGENCY STOP function:
•
EN ISO 12100-1
•
EN ISO 12100-2
•
EN 418
• EN 60204-1
EMERGENCY STOP in the control system
The control system supports the machine manufacturer in implementing an EMERGENCY STOP function on the basis of the
following features:
● Activation of EMERGENCY STOP sequence in the NC via a PLC input.
● The EMERGENCY STOP procedure in the NC reduces the speed of all axes and spindles as quickly as possible.
● Unlocking of the EMERGENCY STOP button does not reset the EMERGENCY STOP state. Resetting the control device
does not restart the machine.
● After the EMERGENCY STOP state has been cancelled, it is not necessary to reference axes or synchronize spindles
(positions are corrected).
15.2
EMERGENCY STOP sequence
Requirements
Actuation of the EMERGENCY STOP pushbutton or a signal derived directly from the button must be taken to the control
system (PLC) as a PLC input. In the PLC user program, this PLC input must be transferred to IS "EMERGENCY STOP"
(DB2600.DBX0000.1) in the NC.
Resetting of the EMERGENCY STOP pushbutton or a signal derived directly from the button must be taken to the control
system (PLC) as a PLC input. In the PLC user program, this PLC input must be transferred to IS "Acknowledge
EMERGENCY STOP" (DB2600.DBX0000.2) in the NC.
Sequence in the NC
The predefined (in EN 418) sequence of internal functions that are implemented to obtain the EMERGENCY STOP state is
as follows in the control system:
1. Part program execution is interrupted. All axes and spindles are braked along a braking ramp defined in MD36610
AX_EMERGENCY_STOP_TIME.
2. The IS "808D READY" (DB3100.DBX0000.3) is reset.
3. The IS "EMERGENCY STOP active" (DB2700.DBX0000.1) is set.
4. Alarm 3000 is set.
5. On expiry of a delay that is set for specific axes/spindles in MD36620 SERVO_DISABLE_DELAY_TIME (shutdown delay,
controller enable), the controller enable is cancelled. It must be noted that MD36620 must be specified at least as long as
MD36610.
Sequence on the machine
The sequence of EMERGENCY STOP functions on the machine is determined solely by the machine manufacturer.
Attention should be paid to the following in connection to the sequence on the NC:
● The sequence of operations in the NC is started with IS "EMERGENCY STOP" (DB2600.DBX0000.1). When the axes
and spindles have come to a halt, the power supply must be interrupted, in compliance with EN 418.
● The PLC I/O is not affected by the sequence in the NC. If individual outputs are required to attain a particular state in the
event of an EMERGENCY STOP, the machine manufacturer must include functions for this purpose in the PLC user
program.

Siemens SINUMERIK 808D Specifications

General

Brand	Siemens
Model	SINUMERIK 808D
Category	Control Unit
Language	English