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2.50
Command Processing
The SIPROTEC 4 7UM62 includes a command processing function for initiating switching operations in the
system.
Control can originate from four command sources:
• Local operation using the keypad on the local user interface of the device
• Operation using DIGSI
• Remote operation using a substation automation and control system (e.g. SICAM)
• Automatic functions (e.g., using a binary input)
Switchgear with single and multiple busbars are supported. The number of switchgear devices to be controlled
is limited only by the number of binary inputs and outputs present. Therefore, the variant 7UM622 should be
the preferred version. High security against inadvertent device operations can be ensured by interlocking
checks. Additionally, there is a large variety of switching device types and operational modes.
2.50.1
Control Device
Switchgear can be controlled via the device operator panel, PC interface and the serial interface as well as a
connection to the control system for switchgear with single and double busbars.
The number of switchgear devices to be controlled is limited by the number of binary inputs and outputs.
2.50.1.1 Description
Operation via integrated control panel
Using the navigation keys ▲, ▼,
selected. After entering a password, a new window is displayed where multiple control options (ON, OFF,
ABORT) are available using the ▼ and ▲ keys. Then a safety query appears. Only after repeated confirmation
using the E
NTER
process is aborted. Cancellation via the E
or during breaker selection.
If the attempted command fails, because an interlocking condition is not met, an error message appears in the
display. The message indicates why the control command was not accepted (see also SIPROTEC 4 System
Description). This annunciation must be acknowledged with ENTER before further operation of the unit is pos-
sible.
Operation using DIGSI
Switchgear devices can be controlled via the operator control interface with a PC using the DIGSI operating
program. The procedure is described in detail in the SIPROTEC 4 System Description (Control of Switchgear).
Operation using the System Interface
Control commands for switchgear can also be entered through the serial SCADA interface communicating with
the substation control and protection system. A prerequisite for this is that the required peripherals physically
exist in the device and the substation. Also, specific settings to the serial interface must be made in the device
(see SIPROTEC 4 System Description ).
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
,
, the control menu can be accessed and the switchgear to be operated
key is the command action performed. If this enabling does not occur within one minute, the
SC
key is possible at any time before the control command is issued
Functions
2.50 Command Processing
349
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