Pilz PSS SB NOT, Basic license - Manual (Page 24)

4-2
Intended Use
Modular Block System: Emergency Stop Circuits
Intended use of the standard function blocks
SB060: Emergency stop monitoring
SB060 is a standard function block for monitoring single-channel E-STOP
buttons up to category 2, in accordance with EN 954-1, 11/94 and AK 3, in
accordance with DIN V 19 250, 01/89. It is also possible to use SB 060 to
monitor safety gates and light barriers up to category 2, in accordance
with EN 954-1.
Operating modes:
• With or without start-up reset on cold-start
• With or without automatic reset when E-STOP is released
INFORMATION
Input circuitry:
• Use E-STOP button with test pulses
SB061: Emergency stop monitoring
SB061 is a standard function block for monitoring E-STOP buttons up to
category 4, in accordance with EN 954-1, 03/97 and AK 6, in accordance
with DIN V 19 250, 05/94. It is also possible to use SB061 to monitor
safety gates up to category 4, in accordance with EN 954-1, 03/97.
Operating modes:
• With or without start-up reset on cold-start
• With or without automatic reset when E-STOP is released
INFORMATION
Input circuitry:
• Use E-STOP button with test pulses
• When using SB061 for category 4 applications:
- use dual-channel elements
• When using SB061 for category 2 applications:
- use single-channel elements