Festo Compact Performance System, Руководство по установке и пусконаладке

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4.5 Correcting string assignment errors
With the four string LEDs on the node and the status
LEDs on the CP modules, you can check the string
assignment of the CP system. The LEDs have the fol-
lowing meanings:
String LEDs
on node Meaning Error treatment
LED is out
No error ascertained in string
assignment None
LED lights up
Incorrect string assignment
ascertained during operation or
CP connection interrupted
•
Correct string assignment
or check CP cable
LED flashes
Incorrect string assignment
ascertained when operating voltage
is switched on
•
Check CP connection or
string assignment
1)
Status LEDs on
the CP modules Meaning Error treatment
LED is out
– Operating voltage not applied or
no connection to node
or
– incorrect string assignment
ascertained during operation
•
Check CP connection and
operating voltage connection
on node (pin 1)
or
•
correct string assignment
LED lights up
Operating voltage applied None
LED flashes
– Test phase after power-up
or
– error in supply e.g. short
circuit/overload
or
– incorrect string assignment
when operating voltage is
switched on
•
None
or
•
eliminate error
or
•
check string assignment
1)
1)
When the string assignment has been modified (CP modules added or removed),
you must save the new string assignment by pressing the SAVE button on the node
(see section 4.2.1).
4. Commissioning
4-16
CP... 9806A