Technical data

CA01305001Z-EN www.eaton.com
14 IZMX circuit-breakers, INX switch-disconnectors
IZMX circuit-breakers, INX switch-disconnectors
Communication Options for Series NRX
For the Series NRX range, PROFIBUS-DP or Modbus RTU communication protocols
are supported by optional fieldbus connection accessories. Communication
adapter modules are compact units for direct mounting in the auxiliary terminal
strip. When retrofitting, four auxiliary terminals are replaced with one
communication module. The terminals provide all data available in the trip unit to
the fieldbus, including switching state, current, voltage, power, energy, and
diagnostic information such as overcurrent, phase asymmetry and overvoltage as
measured by trip unit. Through the communication module the trip unit
maintenance mode can be enabled and the breaker can also be opened and closed
via the Spring Release and Shunt Trip when wired accordingly. In addition to
PROFIBUS-DP and Modbus RTU, Series NRX also offers an additional
communication module for direct Ethernet connection to the circuit breaker. The
Ethernet adapter module supports web enabled browsing direct from the module
and supports Simple Network Mail Protocol (SNMP) for alarm or event
notifications.
Requirements
The communication adapter modules can be used in combination in both NF and RF
Frame breakers (IZMX16/40) and in combination with Digitrip trip units with
Metering and Power Measurement capability:
• Digitrip 520M (… -U Types)
• Digitrip 1150i (…-P Types)
Configuration
PROFIBUS-DP configuration
Communications module IZMX-PCAM has a 9-pin D-Sub socket for connection to
PROFIBUS. The module works as a slave on PROFIBUS-DP; the data is defined
through a standardized device master data file, which permits smooth integration of
IZMX in a DP line.
• On the PROFIBUS-DP side the module supports automatic baud rate detection;
the PROFIBUS-DP bus address is set through the trip unit’s display. The maximum
cable length is 2.4 km.
• To operate the IZMX-PCAM, a supply voltage of 24 V DC is required.
• The data connection to the circuit-breaker is implemented internally through a
serial highspeed data connection.
Data access via PROFIBUS-DP
The data on PROFIBUS-DP are offered according to the profile for low-voltage
switchgear (LVSG) of PROFIBUS International (PROFIBUS and PROFINET User
Group). Five different data structures with varying numbers of parameters are
available through the device master data file. This allows a data filter to be easily
implemented, which simplifies integration of the Series NRX data into the control
system.
①②③
②
IZMX-PCAM: PROFIBUS-DP
① IZMX-MCAM: Modbus
③ IZMX-ECAM: Ethernet
PROFIBUS
Control
Source Ground
Enable
Disable
Series NRX
PROFIBUS
Communications
Adapter Module
Cat. PCAM
Modbus
Control
Source Ground
Enable
Disable
Modbus
Communications
Adapter Module
Cat. MCAM
Ethernet
Control
Source Ground
Enable
Disable
Series NRX
Ethernet
Communications
Adapter Module
Cat. ECAM
alternative
NF frame, IZMX16
RF frame, IZMX40
with U or P release
Modbus configuration
Communications module IZMX-MCAM has a plug-in screw terminal for connection
to Modbus. The module operates as a Modbus slave.
• Baud rate, data format and address (max. 247) for Modbus are set with the input
keys of the trip unit. The maximum cable length is 1.2 km.
• The Modbus must be terminated with a 120 Ω terminating resistor.
• To operate the IZMX-MCAM, a supply voltage of 24 V DC is required.
• The data connection to the circuit-breaker is implemented internally through a
serial highspeed data connection.
Data access via Modbus
The data is contained in comprehensive data tables. Each data point is available as
floating-point (IEEE) or fixed-point value. This variance allows the integration of the
IZMX to be adapted to the Modbus architecture. This enables a simple means of
implementing a data filter, which facilitates the integration of IZMX data in the
control system.
Ethernet configuration
Communications module IZMX-ECAM has standard RJ45 socket for connection to
Ethernet. This module has a configured web server on board and supports Simple
Network Mail Protocol (SNMP) for alarm or event notifications.
• IP address and related parameters are set through the trip unit’s display.
• The data connection to the circuit-breaker is implemented internally through a
serial high speed data connection.
• To operate the IZMX-ECAM, a supply voltage of 24 V DC is required.
Data access via Ethernet
The data is contained in different web pages structured according to the topics
„Data View”, „Alarms”, „Logs” and „Configuration”. This variance allows the
integration of the IZMX to be adapted to all Ethernet networks supporting http
protocol. An „around the world access” to the breaker becomes reality and using
the SNMP protocol alarm messages can be transported everywhere.
Documentation
All instruction leaflets can be found online at www.eaton.com/seriesnrx/
Installation and general usage instruction leaflet for
IZMX-MCAM: IL01301034E (deutsch/english)
IZMX-PCAM: IL01301035E (deutsch/english)
IZMX-ECAM: IL01301052E (deutsch/english)