Chapter
7
Operating Instructions
UE4155
38
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
8010178/TF82/2010-03-05
Subject to change without notice
Commissioning
7.3.3
System self-test after switching on
Immediately after the power supply is switched on, The UE4155 bus node carries out the
following steps automatically:
internal self-test
loading the stored configuration
testing whether the loaded configuration is appropriate for the connected devices
The system will not start to operate if the above steps could not be performed successfully.
In the event of an error, one or more displays on the bus node turn
Red
and the bus
node only transmits failsafe values (see chapter 9 “Fault diagnosis” on page 46).
7.3.4
General acceptance of the bus node
You may only start operating the system when the general acceptance of the bus node was
successful. Only qualified personnel with the appropriate training are to carry out the
general acceptance procedure for the bus node.
The general acceptance comprises the following test points:
Check whether the switching of the components to the field-signal connections
complies with the requisite Performance Level according to EN ISO 13 849
D
1.
Check the devices connected to the SDL connections in accordance with the test pro-
cedures from the corresponding operating instructions.
Mark all connecting wires and connection plugs on the bus node unambiguously to
avoid confusion. Because the bus node has several connections of a similar
construction, you must ensure that disconnected connecting wires are not reconnected
to the wrong connection.
Check the bus-node configuration. Check the signal paths and the correct incorporation
into the FPLC safety program.
Check the correct data transfer from the field-signal connections and/or from the devi-
ces to the SDL connection to the FPLC and vice versa.
Check the FPLC program.
Completely verify the safety functions of the entire system.
Fully document the configuration of the entire system, the individual devices, the FPLC
program and the result of the safety check.
Note