Siemens 6MD85, Manual

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Control Functionality
Command Checks and Switchgear Interlocking Protection
Before switching commands can be issued by the SIPROTEC 5 device, several steps are used to check the
command:
•
Switching mode (interlocked/non-interlocked)
•
Switching authority (local/DIGSI/station/remote)
•
Switching direction (set=actual)
•
Bay interlocking and substation interlocking
•
1-out-of-n check (double-activation blocking)
•
Blocking by protection function
Confirmation IDs
SIPROTEC 5 devices offer the ability to safeguard various operations with confirmation IDs. The following
confirmation IDs from the Safety menu apply to the control functions:
[scconf89-061016-01, 1, en_US]
Figure 6-26 Confirmation IDs in DIGSI 5: Settings Menu
The following table identifies the meanings of the confirmation IDs:
Table 6-16 Relevant Confirmation IDs for Controls
Confirmation ID Meaning Description
Set/operate Changing settings The confirmation ID is requested before device
parameters can be changed.
Operation (function
buttons) Process data access via
function buttons Access to process data is possible with the help of
push-buttons and function buttons. The confirma-
tion ID of Set/operation is requested.
Control (process) General release for control
of switching devices The confirmation ID is usually not needed for bay
controllers. In the case of protection devices, this
confirmation ID can be used to safeguard control
of switching devices.
Control (non-interlocked) Switching non-interlocked Switching mode:
Release for switching without querying the inter-
locking conditions (
S1 operation
). The fixed
interlocking conditions (for example,
>Enable
opening(fixed)
and
>Enable closing
(fixed)
) are still queried if this is set in the
parameters.
The confirmation ID is queried only for devices
without a key switch; otherwise it is replaced with
the key switch position.
6.3
6.3.1
Control Functions
6.3 Control Functionality
SIPROTEC 5, High-Voltage Bay Controller, Manual 335
C53000-G5040-C015-9, Edition 11.2017