Siemens SIPROTEC 7SS60, Manual

Page: 42 / 134

Configuration
4-8
7SS60 Manual
E50417-G1176-C132-A2
In the following paragraphs, allocation possibilities for binary inputs, binary outputs
and LED indicators are given. The function numbers and designations are listed com-
pletely in the Appendix A.7.
If one tries to leave an item or operation level by pressing one of the arrow keys with-
out having confirmed the allocation with the enter key E, the display will show the
question “
6$9(1(:6(77,1*"
”. Confirm with the YES key Y/J that the new set-
tings shall become valid now. The next text is displayed now. If you press the NO key
N instead, all alterations which have been changed since the E key was last pressed
are lost, and the old text is displayed. Thus, erroneous alterations can be made inef-
fective. Press the arrow key again in order to change really the operating item or level.
When the marshalling procedure is terminated by pressing the enter key E, the allo-
cations are permanently secured in EEPROMs and protected against power outage.
4.2.3.2 Marshalling of the binary inputs
Block 61 The unit contains 3 binary inputs which are designated BI 1 to BI 3. They can be mar-
shalled in address block
. The block is reached from the initial display in level 1 as
follows: press the key (forwards), move to the 2nd operation level by key (next
level); press the key repeatedly until block appears in the display. Key leads
to operation level 3 with address block
0$56+%,1,13
.
The selection procedure is carried out as described in section 4.2.3.1.
A choice can be made for each individual input function as to whether the desired func-
tion should become operative in the “normally open” mode or in the “normally closed”
mode, which means:
•
( ) ”normally open” mode:
The input acts as an NO contact, i.e. the control voltage at the input terminals acti-
vates the function;
•
(
&
) “normally closed” mode:
The input acts as an NC contact, i.e. control voltage at the input terminals turns off
the function, control voltage absent activates the function.
When scrolling through the display with + or –, each input function is displayed without
any index (which indicates the “normally open” mode) and with the index
&
(“normally
closed” mode). The selected function must then be confirmed with the enter key E.
Table 4-2 shows a complete list of all binary input functions with their associated func-
tion number (FNo.).
Note:
Conventional binary inputs are level-triggered whereas the binary input of the 7SS601
that caters to the function “Blocking pulse input” is edge-triggered. After a level change
has been detected, the TRIP command output is blocked for a fixed time. This ensures
that the blocking duration is constant, regardless of the duration of the signal that stim-
ulated the input. The “Blocking pulse” function is marshallable. Only the binary input
to which the “Blocking pulse” is marshalled is edge-triggered; all other binary inputs
are level-triggered.