Design
Toshiba’s TE2 low voltage motor starter series is a high-end, digitally programmable, reduced voltage solid state starter. This heavy-duty starter provides stepless soft starting of three-phase AC induction motors, which protects mechanical components from excessive torque stress as well as electrical systems from the effects of high motor inrush currents.
- 3 Phase Voltage and Current Metering
- Power Factor Indications and Protections
- 4 - 20 mA Analog Output with 12 Programmable Functions
- Integrated Bypass Contactor
- 120 V Control (240 V Option)
- Pull-Apart Control Terminals
- Narrow Width for MCC Mounting
- Four Digit LED Display
- 7” Full Color Touchscreen Keypad Option
- RS485 MODBUS® RTU
- Multiple Ramp Types to Start Any Load
- Flexibility of Two-Wire or Three-Wire Controls
- Equipment Ground Fault
- Retentive Thermal Memory
- Convenience of Real-Time Thermal Modeling
Applications
Pump-Flex Application Features
The Pump-Flex Deceleration Control helps protect equipment used in applications, such as centrifugal pumps, conveyors, and material handlers, from damages caused by abrupt stopping conditions. When a stop command is given, the deceleration feature gradually extends the stopping time by decreasing the voltage applied to the motor. The check valve then safely and gently closes and the Pump-Flex circuit automatically turns off. Additional features include:
- Pump-Flex Deceleration Control Eliminates Damaging Effects of “Water Hammer”
- Ideal for Irrigation Pumps when Specific Amount of Water Needs to be Pumped if Power Failure or Fault Trip Occurs During Operation
- Elapsed Time Meter, Run-Cycle Counter, Remaining Lock Out Time, & Fault History for Maximum Monitoring & Control of Pumps or Processes
Pumps, Fans, Blowers & Conveyors
Closed loop torque/current ramping provides a linear increase in output torque during acceleration. It maximizes the available torque using an internal PID feedback loop, ensuring a smooth and linear ramp-up to full speed. It is ideal for low pressure pumps where slight surges at the end of the ramp may pose mechanical problems or on fans and mixers where blade warping can be an issue.
Compressors & Chillers
The TE2 offers voltage ramping with current limiting for applications that need the smoothness of voltage ramping while maintaining the ability to start in limited power environments. For maximum motor power where the available power supply is severely limited, a current limit/current step start can be used.
Specifications
| Voltage | 200 - 600V |
|---|---|
| Current | 18 - 1250 Amps |
| Overload Rating | 500% for 1 minute |
| Power Circuit | 6SCRs |
| Ambient Conditions | 0 to 40°C |
| Control Power | 120 VAC, 240 VAC Optional |
| Standards | UL Listed to Canadian and US Safety Standards |
| Operational Variables/Operational Controls | Pump-Flex Deceleration, Closed Loop Current/Torque Ramp, Voltage Ramp with Current Limit |
| Features | Integral Bypass Contactor |
| Interface | Digital LED Keypad with 8 Condition LEDs, 7 Command Keys |
| Communications | RS485 Modbus® RTU |
| Enclosure | Open Chassis |