Siemens siprotec SJ62, User Manual

Page: 361 / 715

2 Functions
359
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
Table 2-28 Interlocking logic
1)
also "Allowed" for: ”switching authority LOCAL (check for Local status): is not marked
2)
also "Allowed" for: ”Switching authority REMOTE (check for LOCAL, REMOTE, or DIGSI sta-
tus): is not marked"
3)
SC = Source of command
SC = Auto SICAM:
Commands that are initiated internally (command processing in the CFC) are not
subject to switching authority and are therefore always "allowed".
Switching Authori-
ty (for devices
without operator
panel) The dongle cable sets the switching authority of the device to "REMOTE". The speci-
fications of the previous section apply.
Switching Mode
(for devices with
operator panel) The switching mode determines whether selected interlocking conditions will be acti-
vated or deactivated at the time of the switching operation.
The following switching modes (local) are defined:
• Local commands (SC = LOCAL)
– interlocked (normal), or
– non-interlocked switching.
The devices in housing of size
1
/
2
or
1
/
1
are equipped with key switches on the front
panel. The bottom switch is reserved for switching mode. The "Normal" position allows
interlocked switching while the "Interlocking OFF" position allows non-interlocked
switching. For devices in housing of size
1
/
3
the switching mode can be changed
between "interlocked (latched)" and "non-interlocked (unlatched)" in the operator
panel after having entered the password or by means of CFC also via binary input and
function key.
Current Switch-
ing Authority
Status
Switching
Authority
DIGSI
Command Issued
with SC
3)
=LOCAL
Command Issued
from SC=LOCAL or
REMOTE
Command
issued from
SC=DIGSI
LOCAL Not checked Allowed Interlocked
2)
-
"switching authority
LOCAL"
Interlocked
"DIGSI not reg-
istered"
LOCAL Checked Allowed Interlocked
2)
-
"switching authority
LOCAL"
Interlocked
2)
-
"switching au-
thority LOCAL"
REMOTE Not checked Interlocked
1)
-
"switching authority
REMOTE"
Allowed Interlocked
"DIGSI not reg-
istered"
REMOTE Checked Interlocked
1)
-
"switching authority
DIGSI"
Interlocked
2)
-
"switching authority
DIGSI"
Allowed