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Technical specifications
6.4 Technical specifications
Extension Units KPxx
88
Operating Instructions, 05/2019, A5E43600360-AC
Inputs for emergency stop button
The following information applies to all versions of the Extension Units.
Number of emergency stop buttons, maximum
2
per emergency
stop button
Number of inputs (LED)
0
Number of outputs (contacts)
2 NC contacts
Cable length (shielded or unshielded cable)
Maximum 30 m
Rated voltage
24 V DC
Emergency stop button
The following information applies to all Extension Units when using the emergency stop
mushroom pushbutton, article number 6AV7674-1MA00-0AA0.
Contacts
2 NC contacts, gold-plated
Operations
50000
B10 value
61000
For Extension Unit Hardwired and Extension Unit PROFINET: Connection of the emergency
stop button to 24 V DC safety monitoring, e.g. Siemens 3SK1 series, or fail-safe digital
inputs required
See also
Advanced installation components (Page 21)
Standard installation components (Page 18)
6.4.2
Operating modes of the Extension Unit PROFIsafe
The following table shows the assignment between emergency stop buttons, operating
modes and the bits of the input address that is set when an emergency stop button is
pressed.
Number of
emergency
stop buttons
Encoder Evaluation value Safety
Integrity
Level
Operating
mode
Associated input address bits
and emergency stop button
Hexadecimal Decimal
0
101
257
-
-
All pushbuttons are passivated
1
D3D3
54227
SIL 3
1oo2
0 ("red tape" pushbutton)
8484
33924
SIL 2
1oo1
4, 5 ("red tape" pushbutton)
2
5454
21588
SIL 3
1oo2
0 ("red tape" pushbutton)
1 ("blue tape" pushbutton)
9898
39064
SIL 2
1oo1
4, 5 ("red tape" pushbutton)
6, 7 ("blue tape" pushbutton)
4A4A
19018
SIL 3
1oo2
0 ("red tape" pushbutton)
SIL 2
1001
6, 7 ("blue tape" pushbutton)