Siemens 3TK28, Руководство пользователя

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Description of the individual safety relays
3.6 3TK28 safety relays with relay enabling circuits
3TK28 safety relays
60
Manual, 07/2016, NEB926157502000/RS-AB/003
3TK2821-.C... 3TK2824-.B... 3TK2824-.C...
Product function
•
automatic start
Yes
•
rotation speed monitoring
No
•
laser scanner monitoring
No
•
light grid monitoring
No
•
light barrier monitoring
No
•
magnetic switch monitoring Normally closed
contact-Normally open contact
No
•
magnetic switch monitoring Normally closed
contact-Normally closed contact
No
•
emergency stop function
Yes
•
protective door monitoring
Yes
•
standstill monitoring
No
•
step mat monitoring
No
•
monitored start-up
No
Acceptability for application
• safety-related circuits
Yes
• safety cut-out switch
Yes
• magnetically operated switches monitoring
No
• EMERGENCY-OFF circuit monitoring
Yes
• proximity switches monitoring
No
• opto-electronical protection device monitoring
No
• position switch monitoring
Yes
• tactile sensor monitoring
No
• valve monitoring
No
Utilization category
acc. to VDE0660-200,
DIN EN / IEC 60947-5-1
Rated operational voltage
U
e
[V]
Rated operational current I
e
[A]
if all enabling circuits are loaded
50 °C 60 °C 70 °C
AC-15 230 5 4.5 4
DC-13 24 5 4.5 4
115 0.2 0.2 0.2
230 0.1 0.1 0.1
Continuous current I
th
5 4.5 4