Leuze electronic MLC 500 Series, Безопасная эксплуатация и управление

Страница: 43 / 60

Testing
Leuze electronic MLC 520S 43
Tab. 9.2: Checklist – regular function test by trained operators/persons
Test at least: Yes No
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 3.4.1 "Operation
indicators on the MLC 520S transmitter/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: Yes No
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?