Fail-Safe Modules
7.3 PM-E F pp DC24V PROFIsafe power module
ET 200S Distributed I/O System - Fail-Safe Modules
92
Installation and Operating Manual, 08/2008, A5E00103686-07
Diagnostic
Message
Fault
Detection
Possible Causes
Corrective Measures
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 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
Sensor voltage
or load voltage
missing
Always
Supply voltage not
available or too low
(e.g. voltage dip on F-
module, this can also
be caused, among
other things, by a
short-circuit on the
P1/P2 buses)
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
PROFIsafe monitoring
time set too low
Set a greater value for the "F monitoring
time" parameter for the module in
HW Config
Communication
error
Always
Configuration of the F-
module does not match
safety program
Generate safety program again; then load
configuration and safety program into F-
CPU again
Safety-related
shutdown
Always
Switching frequency
exceeded
Reduce the switching frequency
Generally Applicable Information on Diagnostics
For information on diagnostics that pertains to all fail-safe modules (for example, for reading
out diagnostic functions, or passivating channels), refer to the
Diagnostics chapter in this
manual.
