Toshiba TE3 Series Low Voltage Digital Solid State Soft Starter User Manual

Toshiba TE3 Series Low Voltage Digital Solid State Soft Starter User Manual

The Toshiba TE3 series is a low-voltage digital solid-state soft starter with a current range of 18-1250A, supporting 208-600VAC three-phase power supply. It has core functions such as soft start/soft stop, current limitation, overload protection, etc. It integrates 5 digital outputs, 4 digital inputs, and 1 analog input/output, supports Modbus RTU communication and local touch screen operation, and can quickly adapt to more than 30 application scenarios such as mixers and compressors through Auto Setup. It has multiple protections such as over temperature, phase loss, thyristor fault, etc. The installation needs to comply with NEC standards and is suitable for smooth starting and protection of industrial rotating machinery, reducing starting surge current.

1、 Product infrastructure and specifications

1. Summary of core specifications

Project specification details

Current range: 18A (TE3-18) -1250A (TE3-1250), a total of 12 models

Voltage range: 208VAC, 240VAC, 480VAC, 600VAC, three-phase

Power adaptation for 208VAC: 5-450HP; 600VAC：10-1200HP

Start time 1-300s (customizable)

Soft stop time 0-300s (customizable)

Overload level 10/20/30 (corresponding to different trip curves)

Communication parameters Modbus RTU (addresses 1-32, baud rates 9600-11520)

Weight range 4kg (TE3-18) -181kg (TE3-1250)

2. Input/output interface

Interface type specification parameters

Digital input (DI) 4-channel, supports 110/230VAC or 24VDC, can map start/stop/reset and other functions

Digital output (DO) 5 channels, 240VAC 1A (DO1-DO4), 240VAC 3A (DO5), supporting fault/operating status output

Analog input (AI) 1 channel, 0-10V or 4-20mA, can map current limit, overload and other functions

Analog output (AO) 1 channel, 0-10V or 4-20mA, can output measured current and overload percentage

Special interface PTC thermistor input (PTC+/PTC -), supporting motor temperature protection

2、 Core functions and configurations

1. Start and stop function

Soft start: By controlling the voltage ramp (1-300s), the starting shock is reduced, and the starting base voltage can be adjusted by 10% -100%.

Kick Start: For viscous loads, provide 10-2000ms torque pulses (30% -80% voltage) to assist in starting.

Current limit start: Limit the starting current to 50% -600% of the motor FLA to avoid grid impact, with a limit time of 1-600s.

Soft stop: voltage ramp deceleration (0-300s), supports automatic smooth stop, and prevents water hammer effect on pump equipment.

2. Automatic configuration and application adaptation

Auto Setup: Built in 30+preset application scenarios (such as centrifugal compressors, screw conveyors, submersible pumps, etc.), one click matching of startup parameters.

Parameter adaptation: Automatically adjust the starting base voltage, ramp rate, current limit and other parameters to adapt to different load characteristics.

Quick debugging: Supports parameter backup to USB, batch copying of configurations, firmware can be upgraded through USB.

3. Detailed explanation of protection functions

Protection type triggering condition response method

When the overload protection current exceeds 115% of the motor FLA and reaches the corresponding overload level, the trip time will trip and the machine will stop. Manual/automatic reset is required

Over temperature protection: The radiator trips and stops when the temperature exceeds 90 ℃, and automatically resets after cooling

Phase loss protection: If any phase is missing on the input/output side, it will trip immediately

Low current protection motor current<25% motor FLA, continuous 4000ms (customizable) trip shutdown

Thyristor malfunction: The thyristor is not conducting properly/short circuited and immediately trips. It is necessary to check the resistance of L1-T1/L2-T2/L3-T3

PTC protection PTC thermistor resistance>4k Ω or open circuit tripping shutdown

Voltage imbalance, three-phase voltage difference exceeding allowable range, tripping and shutdown

4. Energy saving and monitoring functions

IERS intelligent energy-saving: dynamically adjust the motor voltage to reduce energy consumption under light load, with an adjustable energy-saving level of 0% -100%.

Real time monitoring: The touch screen displays parameters such as three-phase current, voltage, power factor, radiator temperature, overload percentage, etc.

Log recording: Stores historical data of 10 trip events, peak current at start/stop, and radiator temperature, supports USB export.

Automatic reset: Supports 0-7200s reset delay, 0-10 retries, and can choose to automatically reset for faults such as phase loss and overload.

3、 Installation and compliance requirements

1. Installation specifications

Installation method: Vertically installed on a flat surface, with reserved ventilation gap (minimum 25mm, 127-483mm for high current models).

Environmental requirements: Avoid dust, corrosive gases, and severe vibrations. When the altitude is greater than 1000m, reduce the capacity by 1% for every 100m increase (up to 2000m).

Wiring requirements: The main circuit uses copper conductors with a wire diameter of 0.3-1010mm ² and a wiring torque of 2.8-124.3N · m. The control circuit and the main circuit are wired separately and shielded wires are used.

Short circuit protection: Class J/L/RK5 fuses or circuit breakers with rated currents of 100A-1600A (depending on the model) are required.

2. Compliance standards

Electrical safety: Complies with NEC 70 (NFPA 70), UL508, and cUL508 standards.

Electromagnetic compatibility: EN 55011 Class A, IEC 61000-4 anti-interference standard.

Environmental compliance: RoHS compatible, waste must comply with local electronic waste disposal regulations.

4、 Operation and maintenance

1. Control method

Local control: Supports multi language switching through touch screen start stop, parameter configuration, and status viewing.

Remote control: Two wire/three wire control (DI interface), Modbus RTU communication (supports start/stop, parameter read/write).

Manual/Automatic Switching: Supports Hand/Auto mode, automatically switches to local control in case of communication failure.

2. Maintenance points

Regular inspection: Clean the radiator at least once a year, check the tightness of the wiring, and verify the protective function.

Troubleshooting: Quickly locate the problem (such as 101=input side L1 phase loss) through the trip code (101-2799).

Long term storage: ambient temperature -25 ℃~70 ℃, dry and ventilated, avoid stacking and heavy pressure.