GE fm2man-a4 compact device

GE fm2man-a4 compact device

Description

The FM2 combines control functions normally found in a low voltage power control center (PCC) with feeder protection. This compact, microprocessor-based device provides sophisticated control and protective relaying at significant cost savings over a PCC design using discrete devices.

Standard features in every FM2 simplify maintenance and plant expansion. One FM2 is required for every contactor/breaker unit in the PCC. The contactor can be energised and de-energised using the FM2’s direct-wired inputs, or via the serial port.

Feeder protection is included for the basic causes of failure to prevent costly shutdowns. These include 3 phase thermal overload and earth fault protection.

A two wire RS485 Modbus protocol communications port is provided for high-speed communications with a complete line-up of PCCs. Any FM2 may be interrogated on demand, to determine both Actual and Setpoint operating parameters. Fast response time to a request for alarm or trip status makes real time control of a complete process possible. Statistical recording of running hours and number of contactor operations and trips assists with predictive maintenance scheduling.

Features

The FM2 has been developed with economy in mind. The customer is able to choose from different options to achieve maximum benefit from the relay when integrated into the process environment.

The basic FM2 comes with 3 phase thermal overload protection (49/51), earth fault protection (50G), six control inputs (Close A, Close B, Open, Test Mode, Contactor A status, and Contactor B status), 10 programmable inputs, two fixed outputs (relay A and relay B), and one programmable output relay. The following additional features are available:

• 20 × 2 alphanumeric display (Option PD) 

• 1 additional electromechanical relay: ESD Relay 

• programmable undervoltage reclose of feeders following an undervoltage condition 

• diagnostics which includes pretrip data and historical statistics 

• single phase voltage input which allows the FM2 to calculate and display kW and kWh

MODEL: 

• 712: VT input and switch inputs are rated for 120 V AC, 50 or 60 Hz. 

• 722: VT input and switch inputs are rated for 240 V AC, 50 or 60 Hz.

MOUNTING:

•Chassis mount: “Black box” version of the FM2 mounted inside the PCC panel. 

• Panel mount and display: Mounted on a panel with a 20 × 2 display, LEDs, and keypad.

Accessories

• EnerVista FM2 Setup software: No-charge software package to aid in setting up FM2 operating parameters. 

• RS232/485: RS232 to RS485 converter box designed for harsh industrial environments. 

• 5 A Phase CT: 50, 75, 100, 150, 200, 250, 300, 350, 400, 500, 600, 750, and 1000. 

• 1 A Phase CT: 50, 75, 100, 150, 200, 250, 300, 350, 400, 500, 600, 750, and 1000. 

• 50:0.025 Earth Fault CT: For sensitive earth fault detection on high resistance earthing systems. 

• Collar: For reduced depth mounting. 

• Open key cover: To prevent accidental pressing of the OPEN key. 

• Control key cover: Full cover on control keys