Table of Contents
Advertisement
Test of the Binary Inputs
To test the wiring between the plant and the binary inputs of the 7SD5 the condition in the system which initiates
the binary input must be generated and the response of the device checked.
To do so, open the dialog box Hardware Test again to view the physical position of the binary input. The pass-
word is not yet required.
Proceed as follows in order to check the binary inputs:
• Each state in the system which causes a binary input to pick up must be generated.
• Check the reaction in the Status column of the dialog box. To do this, the dialog box must be updated. The
options may be found below under the margin heading „Updating the Display".
• Finish the test sequence (see margin heading below „Exiting the Procedure").
If, however, the effect of a binary input must be checked without carrying out any switching in the system, it is
possible to trigger individual binary inputs with the hardware test function. As soon as the first state change of
any binary input is triggered and the password No. 6 has been entered, all binary inputs are separated from the
system and can only be activated via the hardware test function.
Test of the LEDs
The light-emitting diodes (LEDs) may be tested in a similar manner to the other input/output components. As
soon as the first state change of any LED has been triggered, all LEDs are separated from the internal device
functionality and can only be controlled via the hardware test function. This means e.g. that no LED is illumi-
nated anymore by a protection function or by pressing the LED reset button.
Updating the Display
When the dialog box Hardware Test is opened, the present conditions of the hardware components at that
moment are read in and displayed.
An update is made:
• For the particular hardware component, if a command for change to another state was successful,
• For all hardware components if the Update button is clicked,
• For all hardware components with cyclical updating (cycle time is 20 sec) if the Automatic Update (20 sec)
field is marked.
Exiting the Procedure
To end the hardware test, click on Close. The dialog box closes. Thus, all the hardware components are set
back to the operating state specified by the plant states. The processor system is restarted, then the device is
ready for operation.
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
Mounting and Commissioning
3.3 Commissioning
537
Advertisement
Table of Contents
