VEGA VEGALOG 571 EP (Ex) - Manual (Page 23)

7 Maintenance and fault rectification
7.1 Maintenance
When used as directed in normal operation, the module card
VEGALOG
571 EP is completely maintenance-free.
7.2 Fault rectification
VEGALOG 571 EP offers maximum reliability. Nevertheless
faults can occur during operation. These may be caused by the
following, e.g.:
l
Measured value from sensor not correct
l
Supply voltage
l
Interference on the cables
The first measures to be taken are to check the input/output
signal as well as evaluate fault messages. The diagnostic
information is updated in a 5 sec. cycle.
PACTware™ with the suitable DTM offers comprehensive
diagnostics options. The integrated online help offers you
additional information. In many cases, the causes can be
determined this way and faults can be easily rectified.
However, if these measures are not successful, call the VEGA
service hotline in urgent cases under the phone no. +49 1805
858550.
The hotline is available to you 7 days a week round-the-clock.
Since we offer this service world-wide, the support is only
available in the English language. The service is free of
charge, only the standard telephone costs will be charged.
The operating condition of the CPU and peripheral cards is
displayed via the status LEDs in the front plate.
l
LED bus activity (yellow)
-
lights, if there is a valid data exchange
-
flashes during sensor search and addressing
l
LED failure message (red)
-
flashes in case of communication problems on the
LOGBUS
-
lights during initialisation and during the self-test
-
lights permanently during a hardware error
l
LED operating voltage (green)
-
lights when voltage supply is on
Causes of malfunction
Fault clearance
24 hour service hotline
Fault messages via LED sta-
tus indication
VEGALOG 571 EP (Ex) - Input card Profibus PA 23
Maintenance and fault rectification
25681
-
EN
-070529