Siemens siprotec 7SA522 User Manual page 121

Configuring CFC as
a Source
Configuring Binary
Outputs as a
Destination
Fast Binary Out-
puts
Binary Outputs for
Switching Devices
7SA522 Manual
C53000-G1176-C119-2
Figure 5-22 Selecting a function key as an information source
If certain information should be created as a result of the implementation of a user de-
fined logic function (CFC), this information must appear in the matrix as a source from
CFC. Otherwise, this information will not be available to the user when editing the CFC
logic.
You must not configure information to CFC as a source if it is already configured to a
binary input.
Up to ten (10) information units (commands and indications) may be configured to one
binary output (output relay). One indication may be configured to up to ten (10) binary
outputs (LEDs and output relays).
During configuration of binary outputs, you may select, for each output relay (besides
of the logic function itself), whether it should be latched (/) or unlatched (8). If you se-
lect latched, the output relay remains energized, even after the indication is no longer
present. It must be manually reset by pressing the LED Reset button on the front panel
of the device, or via a binary input with the indication function "!/(' 5HVHW", or via
the serial system interface. If unlatched is selected, the output relay disengages as
soon as the indication disappears.
The binary outputs BA1 up to BA7 of device 7SA522 have a response time which is
approx. 3 ms shorter. Therefore they are very suited for sending trip commands as
well as for issuing initiate signals to signal transmission equipment for teleprotection.
Take care when configuring binary outputs for switching devices. For switching
devices, the type of command (e.g., single or double commands, with or without feed-
back) is defined and configured to the output relay. If the preset command types are
not desired, then appropriate command types can be selected from the Information
catalog (see also "Entering Your Own Information" in the previous sub-section) and
inserted into the configuration matrix.
Configuration
5-23