Overview Of The Machine Data For The Shutdown Paths; Stop Responses - Siemens SINUMERIK 840D Description Of Functions

11.03
To test the shutdown path in the drive monitoring channel, it is possible to
access the input and output signals of all axes from the PLC program via the
PLC interface.
3.1.4

Overview of the machine data for the shutdown paths

Overview of MD Table 3-1
for 840D
Overview of MD Table 3-2
for 611 digital
3.1.5

Stop responses

A high degree of protection against faults/errors is afforded by the two-channel
monitoring structure with its continuous crosswise data comparison. Alarms and
stop responses are initiated when differences are detected between the two
channels. The purpose of the stop responses is to shut down the drives in a
controlled manner according to the actual conditions on the machine. There are
stop responses STOP A, B, C, D, E, F as well as the test stop. The type of stop
response that occurs in the event of a fault/error can either be predetermined
by the system or configured by the machine manufacturer.
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
Overview of machine data for 840D
Number Name
36950 $MA_SAFE_MODE_SWITCH_TIME
36957 $MA_SAFE_PULSE_DIS_CHECK_TIME
36975 $MA_SAFE_STOP_REQUEST_INPUT
36976 $MA_SAFE_PULSE_STATUS_INPUT
36979 $MA_SAFE_STOP_REQUEST_EXT_INPUT
36984 $MA_SAFE_EXT_PULSE_ENAB_OUTPUT
36986 $MA_SAFE_PULSE_ENABLE_OUTPUT
Note:
Data is described in Chapter 4, "Machine data for SINUMERIK 840D"
Overview of machine data for 611 digital
Number Name
1357 $MD_SAFE_PULSE_DIS_CHECK_TIME
Note:
Data is described in Chapter 4, "Machine data for SIMODRIVE 611digital"
Note
The inputs and outputs of the SGEs/SGAs are assigned to the drive channel
using data blocks in the PLC user program (refer to Chapter 4, "Interface
signals").
Note
Protection of operating personnel must be given top priority when stop
responses are configured. The objective must be to stop the drives in a way
that best suits the situation.
3 Safety-Related Functions
3.1 Basic mechanisms of SI functions
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