Leuze electronic MLC 500 Original Operating Instructions page 46

Tab. 9.2: Checklist – regular function test by trained operators/persons
Test at least:
Are safety sensor and connectors securely mounted and free of obvious signs of damage,
changes or tampering?
Were no obvious changes made to access or entry possibilities?
Test the effectiveness of the safety sensor:
• The LED 1 on the safety sensor must illuminate green (see chapter 3.4.2 "Operating
indicators on the MLC 520 receiver").
• Interrupt an active beam or the protective field (see figure) with a suitable, opaque test
object:
Checking the protective field function with test rod (only for safety light curtains with a res-
olution of 14 ... 40 mm).
For light curtains with different resolution ranges, this check is to be performed separately
for each resolution range.
• Does the OSSD LED on the receiver illuminate constantly red while the protective field
is interrupted?
When possible, test during running operation:
Protective device with approach function: during machine operation, the protective field is
interrupted with the test object – are the obviously dangerous machine parts stopped with-
out noticeable delay?
Protective device with presence detection: the protective field is interrupted with the test
object – does this prevent operation of the obviously dangerous machine parts?
Leuze electronic MLC 520 Host/Guest
Testing
Yes No
Yes No
46