Diagnostic Functions Of The Em 4 F-Do Dc24V/2 A Profisafe - Siemens PM-E F pm DC24V PROFIsafe Installation And Operating Manual

Fail-Safe Modules
7.7 4 F-DO DC24V/2A PROFIsafe digital electronic module
7.7.5

Diagnostic Functions of the EM 4 F-DO DC24V/2 A PROFIsafe

Behavior in case of supply voltage failure
In the case of a voltage dip in the external auxiliary voltage, the SF LED lights up, the
module is passivated.
With the subsequent supply recovery (level must remain above the specified value for at
least 1 minute (refer to the technical specifications: voltages, currents, electrical potentials))
the SF LED goes out again, the module remains passivated. The SF LED flashes if there are
no other errors, until the error is acknowledged.
Diagnostic functions
The table below provides an overview of the diagnostic functions of the EM 4 F-
DO DC24V/2A PROFIsafe. The diagnostic functions are assigned either to one channel or to
the entire module.
Table 7- 36
Diagnostic Function*
Short circuit
Overload
Overtemperature
Wire break
Internal error
Parameter assignment error
Sensor voltage or load voltage missing
Communication error
Safety-related shutdown
*: 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)".
172
Diagnostic functions of the EM 4 F-DO DC24V/2A PROFIsafe
WARNING
Fault LED
Number
1 SF
H
4 SF
H
5 SF
H
6 SF
H
9 SF
H
10 SF
H
11 SF
H
13 SF
H
19 SF
H
STEP 7
, see "Channel-Specific Diagnostics, Fault Types of Fail-
ET 200S Distributed I/O System - Fail-Safe Modules
Installation and Operating Manual, 08/2008, A5E00103686-07
Effective Range of Can be
Diagnostics Assigned
Parameter
s
Channel No
Channel No
Module No
Channel Yes
Module No
Module No
Module No
Module No
Channel No