11.03
3 Safety-Related Functions
3.4 Safe operating stop (SBH)
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
3-91
Table 3-18
Explanations of Fig. 3-14
Time Explanation
t
1
Position controller clock cycle defined by the following MDs:
For 840D:
MD 10050: $MN_SYSCLOCK_CYCLE_TIME
MD
10060:
$MN_POSCTRL_SYSCLOCK_TIME_RATIO
t
2
Monitoring clock cycle defined by the following MDs:
For 840D:
MD 10090: $MN_SAFETY_SYSCLOCK_TIME_RATIO
For 611 digital:
MD1300: $MD_SAFETY_CYCLE_TIME
t
3
Time until standstill tolerance value is violated
t
4
Time until standstill tolerance value is detected (maximum 1 one monitoring clock cycle)
t
5
Response time required to initiate the configured stop response (maximum 2 monitoring clock cycles)
t
6
Time until the stop response sequence starts (time = 0, depends on configured stop response, refer to
Chapter 2, "Stop responses")
t
7
Time required to reach the shutdown speed with STOP B.
t
8
Time required to stop the axis with STOP B.
t
9
Time required to stop the axis with STOP A.
Note:
Each axis must be measured during start-up to determine the distance it travels between violation of the limit value
and coming to a standstill.
3.4.3
Overview of the machine data for the SBH function
Table 3-19
Overview of machine data for 840D
Number Name
36901 $MA_SAFE_FUNCTION_ENABLE
36930 $MA_SAFE_STANDSTILL_TOL
36951 $MA_SAFE_VELO_SWITCH_DELAY
36956 $MA_SAFE_PULSE_DISABLE_DELAY
36960 $MA_SAFE_STANDSTILL_VELO_TOL
36970 $MA_SAFE_SVSS_DISABLE_INPUT
36971 $MA_SAFE_SS_DISABLE_INPUT
36980 $MA_SAFE_SVSS_STATUS_OUTPUT
36981
$MA_SAFE_SS_STATUS_OUTPUT (ab SW4.2)
Note:
Data is described in Chapter 4, "Machine data for SINUMERIK 840D"
Table 3-20
Overview of machine data for 611 digital
Number Name
1301 $MD_SAFE_FUNCTION_ENABLE
1330 $MD_SAFE_STANDSTILL_TOL
1351 $MD_SAFE_VELO_SWITCH_DELAY
1356 $MD_SAFE_PULSE_DISABLE_DELAY
1360 $MD_SAFE_STANDSTILL_VELO_TOL
Note:
Data is described in Chapter 4, "Machine data for SIMODRIVE 611digital"
Overview for 840D
Overview of MD
for 611 digital
