Siemens siprotec SJ62 User Manual page 427

3 Mounting and Commissioning
Test of the Output
Relays
Test of the Binary
Inputs
Test of the LEDs
Updating the
Display
425
Each individual output relay can be energized allowing a check of the wiring between
the output relay of the 7SJ62/63/64 and the plant, without having to generate the
message that is assigned to the relay. As soon as the first change of state for any one
of the output relays is initiated, all output relays are separated from the internal device
functions, and can only be operated by the hardware test function. This means, that
e.g. a TRIP command coming from a protection function or a control command from
the operator panel to an output relay cannot be executed.
Proceed as follows in order to check the output relay :
• Ensure that the switching of the output relay can be executed without danger (see
above under DANGER!).
• Each output relay must be tested via the corresponding Scheduled-cell in the
dialog box.
• Finish the testing (see margin title below „Exiting the Test Mode"), so that during
further testings no unwanted switchings are initiated.
To test the wiring between the plant and the binary inputs of the 7SJ62/63/64 the con-
dition in the plant which initiates the binary input must be generated and the response
of the device checked.
To do so, the dialog box Hardware Test must again be opened to view the physical
state of the binary inputs. The password is not yet required.
Proceed as follows in order to check the binary inputs:
• Each state in the plant 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 „Up-
dating the Display".
• Finish the testing (see margin heading below „Exiting the Test Mode").
If ,however, the effect of a binary input must be checked without carrying out any
switching in the plant, 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 plant and
can only be activated via the hardware test function.
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.
During the opening of the dialog box Hardware Test the operating states of the hard-
ware components which are current at this time are read in and displayed.
An update is made:
• for each hardware component, if a command to change the condition is successfully
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.
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015