3 Mounting and Commissioning
246
7ST6 Manual
E50417-G1176-C251-A3
Test of the Binary
Inputs
To test the wiring between the system and the binary inputs of the protection device,
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 password 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
Actual
column of the dialog box. To do this, the dialog box
must be updated. The options may be found below under the margin heading „Up-
dating the Display“.
• Terminate the test sequence (see below under the margin heading „Exiting the Pro-
cedure“).
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 hard-
ware 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 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 illuminated 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 hard-
ware components at that moment are read in and displayed.
An update occurs:
• For each hardware component, if a command to change the condition is success-
fully performed,
• For all hardware components if the
Update
button is clicked,
• For all hardware components with cyclical updating (cycle time is 20 seconds) if the
Automatic Update (20sec)
field is marked.
Exiting the Proce-
dure
To end the hardware test, click on
Close
. The dialog box closes. The device becomes
unavailable for a brief start-up period immediately after this. Then all hardware com-
ponents are returned to the operating conditions determined by the system settings.
www
. ElectricalPartManuals
. com