Siemens siprotec SJ62 User Manual page 360

Control Logic using
CFC
Switching Authori-
ty (for devices with
operator panel)
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
The following figure shows all interlocking conditions (which usually appear in the
display of the device) for three switchgear items with the relevant abbreviations ex-
plained in the previous table. All parameterized interlocking conditions are indicated.
Figure 2-127 Example of configured interlocking conditions
For the bay interlocking a control logic can be structured via the CFC. Via specific
release conditions the information "released" or "bay interlocked" are available (e.g.
object "52 Close" and "52 Open" with the data values: ON / OFF).
The interlocking condition "Switching Authority" serves to determine the switching au-
thorization. It enables the user to select the authorized command source. For devices
with operator panel the following switching authority ranges are defined in the follow-
ing priority sequence:
• LOCAL
• DIGSI
• REMOTE
The object "Switching Authority" serves to interlock or enable LOCAL control against
remote or DIGSI commands. The devices in housing of size
key switches on the front panel. The top switch is reserved for switching authority. The
position "LOCAL" allows local commands. The position "REMOTE" enables remote
control. For devices in housing of size
between "REMOTE" and "LOCAL" in the operator panel after having entered the pass-
word or by means of CFC also via binary input and function key.
The "Switching authority DIGSI" is used for interlocking and allows commands to be
initiated using DIGSI. Commands are allowed for both a remote and a local DIGSI con-
nection. When a (local or remote) DIGSI PC logs on to the device, it enters its Virtual
Device Number (VD). The device only accepts commands having that VD (with
switching authority = OFF or REMOTE). When the DIGSI PC logs off, the VD is can-
celled.
Commands are checked for their source SC and the device settings, and compared
to the information set in the objects "Switching authority" and "Switching authority
DIGSI".
Configuration
Switching authority available
Switching authority available DIGSI
Specific device (e.g. switching
device)
Specific device (e.g. switching
device)
1
/
2
1
/ the switching authority can be changed
3
y/n (create appropriate object)
y/n (create appropriate object)
Switching authority LOCAL (check for Local
status): y/n
Switching authority REMOTE (check for
LOCAL, REMOTE, or DIGSI commands):
y/n
2.25 Breaker Control
1
or / are equipped with
1
358