Datalogic UniQ 1150-1X41, Product Reference Manual

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SAFETY CONSIDERATION ACCORDING TO EN ISO 13849-1:2008
80
UNIQ™
Example manual production line
In this case the Protective Housing have one movable guard to load/unload target
items. Mechanical construction of the guard assures that the opening of the door
causes the opening of the switch but not the exposure of the operator to the laser emis-
sion within 500 ms (eg. main door provided with switch and secondary door to access
the load/unload plate).
• Operation is frequent/continuous (286 days per year, 9 hours per day and 20 sec-
onds per cycle).
• Guard switch is connected to a safety PLC as input and UniQ™ Interlock and Enable
systems as output/input of that PLC.
• Restart system must be provided.
Since the severity of injury is Serious (S2), frequency is HIGH (F2) and possibility of
avoiding hazard is scarcely possible (P2), the MINIMUM REQUIREMENT as per
IEC13849-1 is PL e.
Target: PLr = e
Severity of injury (S)
S1
Slight (normally reversible injury)
S2 Serious (normally irreversible injury or death)
Frequency and/or exposure times to hazard (F)
F1
Seldom to less often and/or exposure time is short
F2 Frequent to continuous and/or exposure is long
Possibility of avoiding hazard or limiting harm (P)
P1
Possible under specific conditions
P2 Scarcely possible
DOUBLE
DOOR
NOTE: Considering the switching response time of I/O, it must prevent
access in a time less than 500 ms.