Fail-Safe Modules
7.2 PM-E F pm DC24V PROFIsafe Power Module
ET 200S Distributed I/O System - Fail-Safe Modules
Installation and Operating Manual, 08/2008, A5E00103686-07
77
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-E F pm DC24V PROFIsafe and remedies.
Table 7- 5
Diagnostic messages of the PM-E F pm DC24V PROFIsafe, causes of errors and
remedies
Diagnostic
Message
Fault
Detection
Possible Causes
Corrective Measures
Short circuit in the
actuator
Eliminate the short-circuit.
Cross circuit in the
actuator
Eliminate the cross-circuit within 100
hours after the error has occurred.
Internal error
Replace module
Short circuit
Always
Short circuit in P1 and
P2 because actuators
connected to standard
DO modules are not
supplied by means of
the terminal modules of
the standard DO
modules
Actuators connected to standard DO
modules are supplied via the terminal
module of the standard DO module;
replace the fuse after a short-circuit
Acknowledge the error within 100 hours
after the error has occurred
Overload
For output
signal "1"
only
Output stage is
overloaded and
becomes too hot
Eliminate overload
Overtemperatur
e
Always
Shutdown due to
violation of upper or
lower temperature limit
value in the module
case
Check load wiring, check ambient
temperature, check whether permissible
output current is exceeded for the
ambient temperature. Once the fault has
been eliminated, the module must be
removed and inserted, or the power
switched OFF and ON.
Wire break
for "1" output
signal only
Line break
Eliminate broken wire, ensure specified
minimum load (see Technical
Specifications)
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). 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
