Siemens Siprotec 7UM611 Manual page 22

1 Introduction
The 7UM61 device is usable for further applications such as
• Backup protection, since in addition to overcurrent protection, a large variety of pro-
• Protection of synchronous and asynchronous motors.
• Mains Decoupling Device
Messages and Mea- The operating messages provide information about conditions in the power system
sured Values; Re- and the device itself. Measurement quantities and resulting computed values can be
cording of Event displayed locally and communicated via the serial interfaces.
and Fault Data
Annunciations of the devices can be presented by LEDs on the front panel (allocat-
able), processed further externally using output contacts (allocatable), combined with
user-definable logic functions and/or output via serial interfaces (see Communication
below).
During a generator or network fault (fault in the power system), important events and
state changes are stored in a fault annunciation buffer. The instantaneous or rms mea-
sured values during the fault are also stored in the device and are subsequently avail-
able for fault analysis.
Communication For communication with external operator, control and storage systems, serial inter-
faces are available.
Operator Interface A 9-pin DSUB socket on the front panel is used for local communication with a person-
on the Front Panel al computer. By means of the SIPROTEC
and evaluation tasks can be executed via this user interface, such as specifying and
modifying configuration parameters and settings, configuring user-specific logic func-
tions, retrieving operational and fault messages and measured values, readout and
display of fault recordings, querying of devices statuses and measured values.
Rear Panel Interfac- Depending on the individual ordering variant, additional interfaces are located on the
es rear panel of the device. These interfaces allow an extensive communication with
other digital operating, control and memory components to be set up:
The service interface can be operated through data lines. Also, a modem can be con-
nected to this interface. For this reason, remote operation is possible via PC and the
DIGSI
The system interface is used for central communication between the device and a
control centre. The data cables or fibre optic cables can be used. Several standard
protocols are available for data transmission:
• IEC 60 870–5–103
• Profibus DP
• Modbus ASCII/RTU
• DNP 3.0
22
tection functions allow, for example, monitoring of voltage and frequency load.
®
4 operating software, e.g. to operate several devices from a central PC.
Integration of the devices into the substation automation systems SINAUT
®
and SICAM can also be done with this profile.
This protocol of automation technology allows transmission of indications and mea-
sured values.
This protocol of automation technology allows transmission of indications and mea-
sured values.
This protocol of automation technology allows transmission of indications and mea-
sured values.
®
operating software DIGSI
®
, all operational
®
LSA
7UM61 Manual
C53000-G1176-C127-3