Schneider Electric LTMR100EBD TeSys T Series Motor Management Controller
The Schneider Electric LTMR100EBD is a motor management controller from the TeSys T series, providing comprehensive motor monitoring, control, and protection when used with short circuit protection devices and a contactor. This advanced motor controller is designed to provide complete motor management functionality for electrical motors in industrial automation applications. The LTMR100EBD integrates measurement, control, and communication capabilities into a single device, simplifying motor control center design and reducing wiring complexity.
Technical Specifications
The LTMR100EBD offers a measurement current range of 5 to 100 A, accommodating a wide variety of motor sizes in industrial applications. The rated supply voltage is 24 V DC with an operating voltage range of 20.4 to 26.4 V DC. Current consumption ranges from 56 to 127 mA. The rated insulation voltage is 690 V conforming to EN/IEC 60947-1, CSA C22.2 No 14, and UL 508 standards. The rated impulse withstand voltage is 6 kV for current or voltage measurement circuits. The module includes 6 logic inputs with 7 mA input current and 3 logic outputs for control and status signaling.
Communication Capabilities
The LTMR100EBD features dual communication protocol support including Ethernet/IP and Modbus TCP on a single Ethernet interface. The Ethernet port uses an RJ45 connector with two shielded twisted pairs and supports transmission rates of 10 to 100 Mbit/s. The bus addressing range is 0 to 159, configurable via the integrated web server or configuration software. The communication port enables seamless integration with plant-wide control systems, allowing remote monitoring of motor status, current draw, thermal capacity, and fault conditions, as well as remote start/stop control and parameter configuration.
Protection and Monitoring Functions
The LTMR100EBD provides comprehensive motor protection including locked rotor protection, thermal overload protection, earth-leakage protection, reverse polarity protection, overload protection (long time), power factor variation monitoring, phase unbalance protection, load fluctuation monitoring, phase failure detection, and thermal protection. The controller includes extensive diagnostic capabilities such as fault recording, trip context information, waiting time after overload tripping, trip history information, running hours counter and operating time, motor control command recording, starting current and time logging, and event recording. The module also calculates remaining operating time before overload tripping for predictive maintenance.
Measurement Accuracy
The LTMR100EBD achieves measurement accuracy of 1% for voltage measurement across 100-830V range, 0.02 for current measurement, 5% for active and reactive power, and 5% for external earth fault current measurement. The internal clock accuracy is ±30 minutes per year. The module includes overvoltage category III rating and short-circuit withstand rating of 100 kA conforming to EN/IEC 60947-4-1. Connections are made via removable screw terminal blocks with wire ranges from 0.2 to 2.5 mm² (AWG 24-14).
Applications
The Schneider Electric LTMR100EBD is deployed in industrial motor control applications requiring advanced monitoring, protection, and communication capabilities. Typical applications include motor control centers in manufacturing facilities, pump and fan control in HVAC systems, conveyor systems in material handling, and compressor control in industrial gas systems. The controller is also used in water and wastewater treatment plants, food and beverage processing equipment, and any industrial application where motors up to 100A require comprehensive protection and Ethernet-based communication for integration into plant automation networks.
