TeSys™ Tera Motor Management System

TeSys™ Tera is a flexible and modular motor management system for motors with constant speed in low voltage applications. It provides complete protection, control, and monitoring capabilities for single-phase and three-phase AC induction motors, when used with short circuit protection and a contactor. TeSys Tera manages most critical processes by providing advanced motor protection, control, and feeder-level diagnostics, while reducing downtime and increasing productivity. TeSys T detects the status of the process, as it accurately monitors current, voltage, and power.

TeSys Tera enables digitization of motor controls, as it provides data to predictive analytics software for predictive maintenance capabilities. TeSys Tera is a sustainability motor management system with unique power monitoring capabilities for better energy management.

TeSys Tera can be installed in a Motor Control Center or in a low-voltage control panel. It integrates seamlessly into your automation system through five major communication protocols.

TeSys Tera carries all appropriate and necessary third party certifications.

To get detailed information about TeSys Tera, refer to document LVCATENTER_EN and document MKTED210011EN.

TeSys Tera Functions and Configurations:

Communication:

TeSys Tera supports five major communication protocols: Modbus™, PROFIBUS™, Ethernet/IP, Modbus/TCP, and PROFINET™ (future). These communication protocols allow the TeSys Tera controller to integrate seamlessly into your automation systems.

Ethernet/IP and Modbus/TCP provide FDR to enable quick replacement of products and minimize maintenance time.

Possible Configurations:

TeSys Tera controller is a flexible motor management system using the SoMove commissioning tool. It can be paired with current and voltage sensors, expansion modules with additional functionality, inputs and outputs, control unit operation or human machine interface (HMI), ground fault protection current transformers, and external current transformers for applications above 100 amperes. See Configuration with TeSys Tera DTM and SoMove™ Software for details.

The TeSys™ Tera LTMT main controller is the central component in the motor management system. It manages the basic functions such as:

• Communication capabilities through Modbus RTU, PROFIBUS™ DP, Ethernet IP, Modbus TCP/IP, and PROFINET™ (future)

• Inputs and outputs for the various motor control modes, detected fault management, and other functions

• Current and voltage-based protections

• Motor parameters monitoring and protection

• Logs trip record, event record, and detected internal malfunctions record

Characteristics

As standard, the controller manages the following:

Control Modes

• Overload mode

• independent (DOL) mode

• Reverser (RDOL) mode

• Star-Delta (2-step) mode

• Custom mode

Inputs/Outputs

• 4 digital inputs (24 Vdc powered)

• 3 relay outputs (N.O., N.O., N.C.)

• 1 resistance temperature detector (RTD)/positive temperature coefficient (PTC) input

Measurements

• Connection for a thermistor probe

• Connections for a ground sensor

CTVT Sensor Module

The TeSys Tera CTVT sensor module comes in conjunction with the TeSys Tera LTMT main controller. It allows two mounting options:

• Main module on top of the sensor module

• Main module adjacent to the sensor module

The CTVT sensor module adds the following functionalities to the TeSys Tera main controller:

• Current and voltage-based protection and monitoring

• Current and voltage imbalance calculation

• Ground current calculation

• Ground current metering using an external Ground Fault Toroid, see Ground Fault Sensors — Closed Toroids, Type A.

• Phase loss and phase reversal detection, based on current and voltage

• Frequency measurement

• Power energy and power factor calculation

• THD

Expansion Module

The TeSys Tera expansion module options add increased functionality to the LTMT main controller through additional inputs and outputs. Up to five expansion modules can be connected to one main controller through connecting cables.

The following options are available for the expansion module:

• Digital I/O Module with 4 inputs and 2 outputs

  • A maximum of five ditigal I/O modules can be connected to a main controller

  • Externally supplied inputs with 24 Vdc or 120-240 Vac

• Analog I/O Module

  • 2 analog inputs and 1 analog output

  • A maximum of two analog I/O modules can be connected to a main controller

  • Input/Output and monitoring of analog signals (4-20 mA)—flow monitoring/filling level.

Human Machine Interface (HMI) Module

The LTMTCUF HMI operator control unit is the one type of HMI that can be used with the TeSys Tera motor management system in a one-to-one ratio (one HMI to one LTMT main controller). The LTMTCUF HMI control unit provides the following functions:

• Configure the parameters

• Display real-time information

• Monitor alarms

• Local control of the motor

• Fast device replacement (FDR)

• Can be used as hand-held device to upload and download the configuration on controller

• Powered by main controller

• Allows switching from local to remote

• Manages main languages

External Current Transformers

The TeSys Tera external current transformers can be combined with a TeSys Tera main controller and sensor module to provide protection for motors up to 810 amperes.

The characteristics of the external current transformers are:

• CT Class: 5P

• Precision Limit factor: 15

Ground Fault Sensors — Closed Toroids, Type A

The TeSys Tera DTM is a software module installed in an FDT container that uses open FDT/DTM technology, like SoMove™ software that contains DTMs for different devices. The TeSys Tera DTM Library enables the configuration, monitoring, control, and customization of the control functions of the LTMT main controller, as part of the TeSys Tera Motor Management System.

The TeSys Tera DTM provides the following capabilities to:

• Configure the system through menu entries

• Display parameters, alarms, and trips

• Enable customization of operating modes

A library containing predefined motor control mode functions is available to:

• Allow standardization

• Avoid errors

• Reduce motor starter setup times

By using logic functions, a custom programming mode makes it possible to:

• Easily adapt these predefined motor control mode functions to the specific needs of your applications

• Create custom functionality for applications different from the predefined control modes

To create special functions, a logic editor is incorporated in the configurator and allows a choice of two programming languages:

• Function block

• Structured text

The software can be downloaded for free from Schneider Electric website. A cable is required to establish a successful connection between the TeSys Tera LTMT main controller, the LTMTCUF operator control unit (HMI), and the PC running SoMove™ software.

Connecting Cables

Accessories