schmersal PSC1 - Example - Specification of the Safety Functions in Tabular Form

Installation manual
HB-37420-810-01-25F-EN PSC1-C-100 Installation manual - V2.2.docx Page 181 of 201
Version: 38F
12.3.3.3 Example – specification of the safety functions in tabular form
Seq.
no.
Safety function Ref.
fro
m
GFA
P
L
r
Measured
value /sensor
Implementation in
software
Required
Parameter
Input/
activation
Response/
output
1.1 Limitation of the max.
speed of movement,
Monitoring of the
maximum speed
2.3 e 1 x WCS
absolute
encoder
1 x incremental
encoder on
motor / drive
wheel
Monitoring using tested
safety function SLS for
fixed limits:
550mm/s
Overspeed
distance
monitoring:
200mm
Continuous
Reset:
Reset button
Operation
stop
SF 1.7.1
1.2 Limitation of the max.
speed of movement of
the running gear in
working area of worker
Monitoring of the
maximum speed for <
0.33 m/s
2.4 e 1 x WCS
absolute
encoder
1 x incremental
encoder on
motor / drive
wheel
Monitoring using tested
safety function SLS for
fixed limits:
60 mm/s
Overspeed
distance
monitoring:
200mm
Identification of
working area of
worker via position
of running gear
AND NOT
setting up
Reset:
Reset button
SF 1.7.1
1.3 Limitation of the max.
speed of movement of
the running gear in the
setting up mode
Monitoring of the
maximum speed for <
0.07 m/s
3.1 d 1 x WCS
absolute
encoder
1 x incremental
encoder on
motor / drive
wheel
Monitoring using tested
safety function SLS for
fixed limits:
70mm/s
Overspeed
distance
monitoring:
200mm
Setting up
operating mode
AND "Bypass
safety" button
Reset:
Reset button
SF 1.7.1
1.4 Running gear collision
protection
Monitoring of the
distances for minimum
distance using
redundant laser
distance measurement
2.5 d 2 x laser
distance
measuring
devices
Monitoring of the
distances using tested
SAC function.
The analogue distance
measured values are
compared mutually for
max. tolerance
(analogue sensor
diagnostics)
Monitored for minimum
values (SAC function)
Min. distance value 25%
of the max. value for
measuring device
Running gear
outside working
area of the worker
Reset:
Reset button
SF 1.7.1
1.6.1 Running gear sensor
system monitoring
* for the two running
gear sensors
5.1 e 1 x WCS
absolute
encoder
1 x incremental
encoder on
motor / drive
wheel
Muting of the
diagnostics for both
running gear sensors
using tested SCA
function
Muting is started before
each gap, an incorrect
encoder value is then
briefly suppressed.
In the gap, an encoder
value outside of 2 to
160000 mm results in
muting
Pos 1
(7626 - 7850)
Pos 2
(11030-1263)
Pos 3
(75134-5338)
Pos 4
(145562-145622)
Pos 5
(143935-143995)
Pos 6
(80000-80060)
SF 1.6.2