WL Circuit Breakers - Siemens

COM15 (PROFIBUS) / COM16 (MODBUS)Module
WL Circuit Breaker
The COM15/COM16 module enables the
WL Circuit Breaker to exchange data
via PROFIBUS/MODBUS to supervisory
systems and PROFIBUS/MODBUS masters.
The COM15/COM16 module retrieves
some of the key data on the status of
the circuit breaker (circuit breaker
open/closed, closing spring charged,
ready-to-close, etc.) via the CubicleBUS
from the BSS (breaker status sensor).
Both modules are, therefore, offered
together as a PROFIBUS/MODBUS
communication package.
PROFIBUS Module COM15
The COM15 module for the WL enables
the circuit breaker to be connected to any
PROFIBUS-DP system. It supports the DP
and DPV1 PROFIBUS protocols, which means
that it can communicate with two masters
simultaneously. This makes it easier, for
example, to commission parameterization
and diagnostic tools and operator control
and monitoring systems for the WL.
CubicleBUS
Graphic
2-2
MODBUS Module (COM16)
The COM16 module enables the WL circuit
breakers to be connected to any MODBUS
master network.
Remote control or monitoring access to
the circuit breaker can be locked using
hardware and software that prevents
any switching operations taking place
via PROFIBUS/MODBUS (manual or
automatic operation) or parameters
from being changed.
All key events are assigned a time stamp
from the integrated clock to enable
operators to keep track of alarms. This
device clock can be synchronized with
the clock in the automation system.
A temperature sensor integrated in the
COM15/COM16 module measures the
temperature surrounding the breaker in
the switchgear cubicle.
Three integrated microswitches located on
the bottom of the COM15/COM16 module
are used to detect the position of the circuit
breaker (connect, test, disconnect and
not present) and communicate the position
status via PROFIBUS/MODBUS. The circuit
breaker can be remotely operated only in
the test or connect position.
The text on the COM15/COM16 module shows the external pin configuration for closing solenoid
(Y1) and the shunt trips (F1,2) as well as the PROFIBUS/MODBUS write protection function and
the unassigned input/output.
WL PROFIBUS/MODBUS Communication and Electronic Accessories
SECTION 2
Pin Configuration
The COM15/COM16 module is connected
to the secondary terminal block slot X8.
The electrical connections to the circuit
breaker and the CubicleBUS connection
to the internal CubicleBUS modules (ETU,
BSS, metering function, etc.) are defined
in the Operator's Manual. Interposing relays
must be used if the opening and closing
solenoids are used with control voltages
other than 24V DC.
Terminals X9.1 and X9.2 must be used if
the second shunt trip instead of the first
shunt trip is used to open the circuit
breaker via communication.
Interposing relays can be used as required
and must be connected in the same way as
a shunt trip / closing coil (see Graphic 2-4).
It can be used, for example, to reset the trip
indicator if the remote reset option has
been installed. As with Open and Close,
only voltages of up to 24V DC are permitted
(note the polarity); interposing relays must
be used for higher voltage coils.
The user communication port is through
the 9-pin interface on the front of the
COM15/COM16 module. The CubicleBUS
connection for a RJ45 plug is located
at the rear and is used to connect the
external CubicleBUS modules. If no external
CubicleBUS module is connected, the
terminating resistor supplied must be
used as an RJ45 plug.
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