![Siemens Simatic S7-300 Скачать руководство пользователя страница 140](http://html.mh-extra.com/html/siemens/simatic-s7-300/simatic-s7-300_installation-and-operating-manual_374640140.webp)
Digital modules
8.5 SM 326; DO 8 x DC 24V/2A PM
Fail-safe signal modules
140
Installation and Operating Manual, 01/2010, A5E00085586-10
Technical data
Internal limit of the inductive shutdown voltage
Typical L+ (-33 V)
Short-circuit protection of output
Yes, electronic
Response threshold
2.6 to 4.5 A
Actuator timing requirements
Actuator must not react within dark period < 1 ms
(see also chapter "Sensor and Actuator
Requirements for F-SMs in Safety Mode
Wire break detection
For "1" signal
1 s
For "0" signal
100 s
Time, Frequency
Internal signal preparation time in safety mode
Min. 4 ms
Max. 14 ms
Acknowledgment time in safety mode
Max. 18 ms
Note
The maximum cable lengths currently specified in this manual ensure against functional
impairment, even without more precise examination of the boundary conditions. If the
boundary conditions, such as EMC, cable type, cable routing, etc. are examined more
closely, longer cables can be used for all F-SMs.
Содержание Simatic S7-300
Страница 326: ...Response times D 1 Response Times Fail safe signal modules 326 Installation and Operating Manual 01 2010 A5E00085586 10 ...
Страница 344: ...Glossary Fail safe signal modules 344 Installation and Operating Manual 01 2010 A5E00085586 10 ...
Страница 356: ...Product Information 4 A5E03004206 01 ...