GE 369-A200 Motor Management Relay

GE 369-A200 Motor Management Relay

Product Overview

The GE 369-A200 relay has digital features that ‘learn’ individual motor parameters to suit a variety of applications. Unique protection features, such as the utilisation of motor inrush current, cooling rate and acceleration time values, provide optimum motor protection in situations where other relays cannot.

Product Features

Learning and Adaptation Capability: The relay is capable of learning and adapting to a variety of motor parameters to provide more accurate protection.

Multiple Protection Curves: Users can customise overload curves using FlexCurve™ or select one of 15 standard curves to meet different protection needs.

Communication Interface: The 369-A200 relay is equipped with one RS232 front panel port and three RS485 rear ports that support the Modbus RTU protocol for easy communication with various devices.

Display and Operation: The front panel is equipped with a keypad and display, allowing users to set and monitor directly on the relay. Also, status, actual values and troubleshooting information can be accessed via communication.

RTD Monitoring: As an option, the relay can individually monitor up to 12 RTDs (RTDs), which can be from the stator, bearings, environment or drive equipment.

Metering Functions: An optional metering package provides VT inputs for voltage and power components and offers metering in V, kW, kvar, kVA, PF, Hz and MWhrs.

Backspin Detection: The Backspin Detection (B) option enables the 369 Relay to detect flow reversal in the pump motor and restart the motor promptly and safely.

Product Specifications

Control Power Supply: HI (high voltage) and LO (low voltage) control power supply options are available.

Output Relays: Four C-shaped output relays are provided, labelled Trip, Auxiliary 1, Auxiliary 2 and Alarm. Each relay has normally open (NO) and normally closed (NC) contacts and can switch currents up to 8A.

Earthing terminals: Fitted with an isolating transformer with separate 1A, 5A and sensitive HGF (50:0.025) earthing terminals.

Installation and Maintenance

Installation: The relay should be mounted within reach of the display and keypad and away from high current conductors or sources of strong magnetic fields. Mounting should be done with the supplied mounting hardware (bolts and washers).

Maintenance: The back of the relay shows the output relay contacts in the de-energised state for easy maintenance and inspection. Also, the relay supports setpoint entry and modification via the front panel keypad or using the EnerVista 369 setup software and a computer.

Precautions

Field Upgrades: The relay can only be field upgraded if the required hardware is installed into the relay at the factory. Field upgrades are performed with an option enable password, which can be obtained from GE Multilin. Any hardware modifications made to the relay in the field will void the product warranty.

Ordering Codes: All ordering codes are 10 digits and must specify the control power (HI or LO). If a feature is not required, a 0 must be entered in the ordering code.

Ease of Use

• Simple and powerful instruction set 

• One-axis or two-axis motion programs with synchronized block start 

• Program support for a short motion program (called Program Zero) which can be created in the MS-DOS programming software configuration function 

• Nonvolatile (flash) storage for 10 programs and 40 subroutines 

• User scaling of programming units (in Standard mode only) 

• Generic programming using command parameters as operands for Acceleration, Velocity, Move and Dwell commands

Versatile I/O

• Control of GE Fanuc digital AC servos 

• Home and overtravel switch inputs for each servo axis 

• Two position capture strobe inputs for each position feedback input 

• 5v, 24v and analog I/O for use by the PLC 

• Incremental quadrature encoder input for Follower mode master axis 

• 13-bit analog output for each auxiliary axis can be controlled by PLC or used as servo tuning monitor