Universal Remote Control MX-880Z - SPECS SHEET Informacje Techniczne Pobierz pdf (Strona 34)

™

Masterpact™ NT and NW Universal Power Circuit Breakers

Micrologic™ Electronic Trip Systems

05/2014

Communication Network

Masterpact NW/NT circuit breaker, and Micrologic trip unit information is available via a Modbus

network to

Powerlogic™ System Manager™ software (SMS) or other applications for reporting and recording.

Information available includes:

The Modbus circuit breaker communication feature is standard on the Micrologic P and H trip units and

available for the Micrologic A trip unit.

Modbus Circuit Breaker Communication Module (BCM)

The Modbus circuit breaker communication module (BCM) is installed in the circuit breaker and

requires a separate, isolated 24 Vdc power source. The BCM is optically coupled to the Micrologic trip

unit to ensure a high level of isolation between the trip unit and the communication network. The

Modbus BCM provides circuit breaker status via dedicated O/F (open or closed), SDE (fault tripped),

CH (spring charged), and PF (ready-to-close) switches and provides the capability of remotely

controlling the circuit breaker. It also maintains an event log of circuit breaker status containing the

number of times the circuit breaker has experienced each status position with the date and time of the

last transition. This information and the remote control capability are available to a Modbus supervisor

system via a Modbus communication network.

The following may be connected to this module:

•

A set of dedicated switches which read the status of the circuit breaker.

•

A set of “actuators” (MX/XF) to control the circuit breaker.

•

Circuit breaker identification and status.

•

Remote control of circuit breaker operation.

•

View and set protection function parameters.

•

Real-time readings.

•

Trip indication.

•

Alarm reporting.

•

Historical files and maintenance records.

Figure 7: Communication Network

1—Circuit breaker switches (OF, SDE, PF, and CH)

2—Cradle communication module (CCM)

3—Cradle switches (CD, CE and CT)

4—Shunt trip (MX1) and shunt close (XF)

5—Communication bus

6—Circuit breaker communication module (BCM)

7—Trip unit

Circuit Breaker

Communication Module

(BCM)

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 179 180

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