Section 2—Energy Management

Smart System communications mean visible information.

Grouping most of the electrical protection, command and metering components, the switchboards are now significant sources of data locally displayed and sent via communication networks.

Smart Systems use reliable, simple-to-install-and-use displays, and Ethernet and Modbus interfaces.

Information is safely transmitted through the most efficient networks:

• Modbus SL inside switchboards, between components,

• Ethernet, on cable or WiFi, inside the building and connecting switchboards and computers,

• Ethernet or GPRS, for access to on-line services by Schneider Electric.

Energy experts, no matter where they are located, can now provide advise based on the updated data of the building.

Ammeter A

• 2.0 basic protection (IEC)

• 3.0 basic protection (UL)

• 5.0 selective protection

• 6.0 selective + ground-fault protection

Power Meter P

• 5.0 selective protection

• 6.0 selective + ground-fault protection

Harmonic Meter H

• 5.0 selective protection

• 6.0 selective + ground-fault protection

See MicroLogic Electronic Trip Systems for more information.

FDM121

• One-to-one front display module

• See FDM121 Display for more information.

FDM128

• One-to-eight front display module

• See FDM128 Display for more information.

• PowerPacT and ComPacT circuit breakers in a communication network

• I/O application module

• IFE: Ethernet interface module

• IFM: Modbus interface module

• Com’X 200: Energy server

See Wiring System ULP for more information.

The MicroLogic trip unit continuously displays the RMS value of the highest current of the three phases and neutral (Imax). The navigation buttons can be used to scroll through the main measurements.

In the event of a fault trip, the trip cause is displayed.

The MicroLogic A trip unit measures phase, neutral, and ground fault currents.

MicroLogic P/H trip units offer voltage, power, power factor, frequency, and cos φ in addition to the measurements provided by MicroLogic A trip units.

Every instantaneous measurement provided by MicroLogic A trip units can be associated with a maximum/minimum ammeter. The maximum for the highest current of the three phases, neutral, and demand current can be reset using the FDM display unit or the communication system.

The MicroLogic P/H trip units also measures the energy consumed since the last reset of the meter. The active energy meter can be reset using the MicroLogic trip unit keypad, the FDM display unit, or the communication system.

MicroLogic P/H trip units also calculate demand current and power values. These calculations can be made using a block or sliding interval that can be set from five to sixty minutes in steps of one minute. The window can be synchronised with a signal sent through the communication system. Whatever the calculation method, the calculated values can be recovered on a PC through the communication network.

Ordinary spreadsheet software can be used to provide trend curves and forecasts based on this data. They provide a basis for load shedding and reconnection operations used to adjust consumption to the subscribed power.

The MicroLogic H trip unit calculates power quality indicators taking into account the presence of harmonics up to the fifteenth harmonic, including the total harmonic distortion (THD) of current and voltage.

Contact wear algorithms only function on MasterPacT circuit breakers, and contact wear cannot be selected for PowerPacT or ComPacT circuit breakers.

Each time a MasterPacT circuit breaker opens, the MicroLogic P/H trip unit measures the interrupted current and increments the contact-wear indicator as a function of the interrupted current, according to test results stored in memory. Breaking under normal load conditions results in a very slight increment. The indicator value may be read on the FDM display.

It provides an estimation of contact wear calculated on the basis of the cumulative forces affecting the circuit breaker. When the indicator reaches 100%, it is advised to visually inspect the contacts per the instructions in the circuit breaker user guide.

MicroLogic A/P/H trip units calculate the load profile of the circuit breaker protecting a load circuit. The profile indicates the percentage of the total operating time at four current levels (% of circuit breaker In):

• 0 to 49% In

• 50 to 79% In

• 80 to 89% In

• ≥ 90% In.

This information can be used to optimize use of the protected equipment or to plan ahead for maintenance interval extensions.

The FDM121 is intended to display MicroLogic trip unit measurements, alarms and operating information. It cannot be used to modify the protection settings.

Measurements can be easily accessed using a menu. All user-defined alarms are automatically displayed. The display mode depends on the priority level selected during alarm set-up:

• high priority: a pop-up window displays the time-stamped description of the alarm and the orange Alarm LED flashes;

• medium priority: the orange Alarm LED goes continuously on;

• low priority: no display on the screen.

All faults resulting in a trip automatically produce a high-priority alarm, without any special settings required. In all cases, the alarm history is updated. The MicroLogic trip unit saves the information in its non-volatile memory in the event of an FDM121 power loss.

When the circuit breaker is equipped with the Breaker Communications Module (BCM ULP), the FDM121 display can also be used to view circuit breaker status conditions:

• O/F: ON/OFF

• SD: trip indication

• SDE: fault-trip indication (overload, short-circuit, or ground fault).

When the circuit breaker system is equipped with the I/O application module, the FDM121 can monitor and control:

• cradle management

• circuit breaker operation

• light and load control

• custom applications.

When the circuit breaker is equipped with the COM option (BCM ULP) (including connection to shunt close [XF] and shunt trip [MX1] communication voltage releases), the FDM121 display can also be used to control (open/close) the circuit breaker.

Two operating mode are available:

• local mode: open/close commands are enabled from the FDM121 while disabled from the communication network;

• remote mode: open/close commands are disabled from the FDM121 while enabled from the communication network.

• A 3.78 x 3.78 x 1.18 in. (96 x 96 x 30 mm) screen requiring 0.39 in. (10 mm) behind the door (or 0.79 in. [20 mm] when the 24 V power supply connector is used).

• White backlighting.

• Wide viewing angle: vertical ±60°, horizontal ±30°.

• High resolution: excellent reading of graphic symbols.

• Alarm LED: flashing orange for alarm pick-up, steady orange after operator reset if the alarm condition persists.

• Operating temperature range: +14°F (-10°C) to +131°F (+55°C).

• CE / UL / CSA marking.

• 24 Vdc power supply, with tolerances 24 V -20% (19.2 V) to
  24 V +10% (26.4 V).

When the FDM121 is connected to the communication network, the 24 Vdc can be supplied by the communication system wiring system. Consumption is 40 mA.

The FDM121 is easily installed in a switchboard.

• Standard door cut-out is 3.6 x 3.6 in. (92 x 92 mm).

• Attached using clips.

To avoid a cut-out in the door, an accessory is available for surface mounting by drilling only two 0.87 in. (22 mm) diameter holes.

The FDM121 is equipped with a 24 Vdc terminal block:

• A plug-in type terminal block with two wire inputs per point for easy daisy-chaining.

• A power supply range of 24 Vdc -20% (19.2 V) to 24 Vdc +10% (26.4 V).

• A 24 Vdc type auxiliary power supply must be connected to a single point on the ULP system. The FDM121 display has a two-point screw connector on the rear panel of the module for this purpose. The ULP module to which the auxiliary power supply is connected distributes the supply via the ULP cable to all the ULP modules connected to the system and therefore also to MicroLogic trip unit. See wiring diagram later in this section.

• Two RJ45 jacks.

The MicroLogic trip unit connects to the internal communication terminal block on the PowerPacT or ComPacT circuit breaker with the circuit breaker ULP cord. Connection to one of the RJ45 connectors on the FDM121 automatically establishes communication between the MicroLogic trip unit and the FDM121 and supplies power to the MicroLogic trip unit measurement functions.

When the second connector is not used, it must be fitted with a line terminator.

Five buttons are used for intuitive and fast navigation.

The “Context” button may be used to select the type of display (digital, bar graph, analogue).

The user can select the display language (Chinese, English, French, German, Italian, Portuguese, Spanish, etc.).

Main Menu

When powered up, the FDM121 screen automatically displays the ON/OFF status of the device.

When not in use, the screen is not backlit. Backlighting can be activated by pressing one of the buttons. It goes off after three minutes.

Fast Access to Essential Information

• “Quick view” provides access to five screens that display a summary of essential operating information (I, U-V, f, P, E, THD, circuit breaker ON/OFF).

Access to Detailed Information

• “Metering” can be used to display the measurement data (I, U-V, f, P, Q, S, E, THD, PF) with the corresponding min/max values.

• “Alarms” displays active alarms and the alarm history.

• “Services” provides access to the operation counters, energy and maximum ammeter reset function, maintenance indicators, identification of modules connected to the internal bus, and FDM121 internal settings (language, contrast, etc.).

The FDM121 degree of protection is IP54 in front. IP54 is maintained after switchboard mounting by using the supplied gasket during installation.

The FDM128 is intended to display MicroLogic A/P/H trip unit measurements, trips, and operating information. It cannot be used to modify the protection settings.

• Measurements may be easily accessed using a menu.

• Trips are automatically displayed.

• A pop-up window displays the time-stamped description of the trip.

When the circuit breaker is equipped with the COM option (BCM ULP) (including its set of sensors) the FDM128 display can also be used to view circuit breaker status conditions:

• O/F: ON/OFF

• SDE: Fault-trip indication (overload, short-circuit, ground fault)

• PF: ready to close

• CH: charged (spring loaded).

• CE, CD, CT cradle management with I/O application module.

When the circuit breaker is equipped with the COM option (BCM ULP) (including connection to shunt close [XF] and shunt trip [MX1] communication voltage releases), the FDM128 display can also be used to operate (open/close) the circuit breaker.

Two operating mode are available:

• Local mode: open/close commands are enabled from the FDM128 while disabled from the communication network.

• Remote mode: open/close commands are disabled from the FDM128 while enabled from the communication network.

• 4.54 x 3.40 in. (115.2 x 86.4 mm) with 5.7 in. (145 mm) QVGA display 320 x 240 pixels.

• Color TFT LCD, with LED backlight.

• Wide viewing angle: vertical ±80°, horizontal ±70°.

• High resolution: excellent reading of graphic symbols.

• Operating temperature range: +14°F (-10°C) to +131°F (+55°C).

• CE / UL / CSA marking.

• 24 Vdc power supply, -10%/+20% (limit 20.4–28.8 Vdc).

• Consumption 6.8 W.

The FDM128 is easily installed in a switchboard.

• Standard door hole is Ø 0.87 in. (22 mm).

• The FDM128 degree of protection is IP65 at the touch screen cover. IP54 is maintained after installation by using the supplied gasket.

The FDM128 is equipped with:

• A 24 Vdc terminal block:

  • The terminal block has a power supply range of 24 Vdc (limit 20.4–28.8 Vdc).

  • The FDM128 display unit has a 2-point screw connector on the rear panel of the module for the terminal block.

• One RJ45 Ethernet jack.

The MicroLogic trip unit connects to the internal communication terminal block on the MasterPacT circuit breakers through the circuit breaker ULP cord and Ethernet connection through the IFE.

A touch screen is used for intuitive and fast navigation.

The user can select the display language (Chinese, English, French, German, Italian, Portuguese, Spanish, etc.).

Main Menu

When not in use, the screen is automatically shifted to low back-lighting.

Fast Access to Essential Information

• “Quick view” provides access to five screens that display a summary of essential operating information (I, U-V, f, P, E, THD, circuit breaker ON / OFF).

Access to Detailed Information

• "Metering" can be used to display the measurement data (I, U-V, f, P, Q, S, E, THD, PF) with the corresponding min/max values.

• “Alarms” displays the trip history.

• “Services” provides access to the operation counters, energy and maximum ammeter reset function, maintenance indicators, identification of modules connected to the internal bus and FDM128 internal settings (language, contrast, etc.).

The FDM128 degree of protection is IP65 at the touch screen cover. IP54 is maintained after installation by using the supplied gasket.