Siemens PM-E F pm DC24V PROFIsafe Installation And Operating Manual page 157

Behavior in Case of Cross-Circuit/Short-Circuit at the Sensor Supply
When operating with programmed external sensor supply and blocked short-circuit test, you
enable the detection of M-short circuits to M at the sensor supply and signaling at the
corresponding VsF LED. No entries are made in the diagnostics data of the module.
When operating with external sensor supply and cyclic short-circuit test, you enable the
detection of M and P-short circuits at the sensor supply and signaling at the corresponding
VsF LED. No entries are made in the diagnostics data of the module.
Diagnostic Functions
The table below provides an overview of the diagnostic functions of the EM 4 F-DI/3 F-
DO DC24V PROFIsafe. The diagnostic functions are assigned either to one channel or to
the entire module.
Table 7- 32
Diagnostic function*
Short-circuit
Short circuit (on the encoder
supply)
Internal error
Parameter assignment error
Sensor voltage or load voltage
missing
Communication error
Safety-related shutdown
Discrepancy error
*: Specially for F-modules; display in
Safe Modules" table
Before acknowledging the short-circuit diagnosis, remedy the respective error and validate
your safety function. In this case, follow the steps described in chapter "Reactions to Faults
(Page 41)".
Special Features for Fault Detection
The detection of certain faults (short-circuits or discrepancy errors, for example) depends on
the application, the wiring, and the parameter assignment of the short-circuit test and the
sensor power supply. For this reason, tables on fault detection for the applications are
presented in
ET 200S Distributed I/O System - Fail-Safe Modules
Installation and Operating Manual, 08/2008, A5E00103686-07
7.6 EM 4 F-DI/3 F-DO DC24V PROFIsafe digital electronic module
Diagnostic functions of the EM 4 F-DI/3 F-DO DC24V PROFIsafe
WARNING
"Application 1.1"
Fault LED
number
1 SF
H
1 VsF
H
SF
9 SF
H
10 SF
H
11 SF
H
13 SF
H
19 SF
H
19 SF
H
STEP 7
, see "Channel-Specific Diagnostics, Fault Types of Fail-
"Application 1.3"
to .
Fail-Safe Modules
is signaled in Effective range
application of diagnostic
1.1 - 1.3 Channel
1.1 - 1.3 Channel
1.1 - 1.3 Module
1.1 - 1.3 Module
1.1 - 1.3 Module
1.1 - 1.3 Module
1.1 - 1.3 Channel
1.1 - 1.3 Channel
programm
able
No
Yes
No
No
No
No
No
No
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