Fail-Safe Modules
7.4 PM-D F DC24V PROFIsafe Power Module
ET 200S Distributed I/O System - Fail-Safe Modules
102 Installation and Operating Manual, 08/2008, A5E00103686-07
Causes of Faults and Corrective Measures
The following table contains the possible causes of the faults described for the individual
diagnostic messages of the PM-D F DC24V PROFIsafe and remedies.
Table 7- 15 Diagnostic messages of the PM-D F DC24V PROFIsafe, causes of errors and remedies
Diagnostics
Message
Fault
Detection
Possible Causes Corrective Measures
Short circuit in the
actuator
Cross circuit in the
actuator
Eliminate short-circuit/cross-circuit; once
the fault has been eliminated, the module
must be removed and inserted, or the
power switched OFF and ON
Short circuit Always
Internal error Replace module
Overtemperatur
e
Always Shutdown due to
violation of upper or
lower temperature limit
in the module case.
Check load wiring, check ambient
temperature. Once the fault has been
eliminated, the module must be removed
and inserted, or the power switched off
and on.
Internal error Always Internal module fault
has occurred
Replace module
Inserted module does
not match
configuration. Incorrect
parameter assignment
Correct the configuration (compare actual
and preset configuration), and check
communication paths. Correct the
parameter assignment.
Parameter
assignment
error
Always
PROFIsafe address set
incorrectly in the F-
module
Check whether the PROFIsafe address
on the module matches the configuration
in
HW Config
external
auxiliary supply
missing
Always No supply voltage or
supply voltage is too
low.
Check module for correct contact
Error in communication
between F-CPU and
module due to
defective PROFIBUS
connection or higher
than permissible EMI,
for example
Test PROFIBUS/PROFINET connection.
Correct faults
Communication
error
Always
PROFIsafe monitoring
time set too low
Set a greater value for the "F monitoring
time" parameter for the module in
HW Config
Generally Applicable Information on Diagnostics
For information on diagnostics that pertains to all fail-safe modules (for reading out
diagnostic functions, passivating channels, for example), refer to
Diagnostics
chapter in this
manual.
See also
Fault Diagnostics (Page 43)
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