This manual introduces the features, specifications, installation, wiring, usage and troubleshooting of Motortronics XLD series digital solid state soft starters 39-1250A
The Motortronics XLD Series is a digitally programmable solid-state reduced voltage soft starter designed for three-phase AC induction motors. It features six SCRs capable of withstanding starting currents up to 500% for 60 seconds, ensuring smooth acceleration and reducing mechanical wear on drive train components.
This manual provides comprehensive instructions for the installation, mounting, and wiring of the unit. It details the programming interface for setting parameters such as ramp time, current limit, and dual ramps, along with procedures for motor overload protection, fault diagnosis, and troubleshooting.
| Unit Overload Capacity (Continuous) | 125% of motor FLA |
|---|---|
| Starting Current Withstand | 500% for 60 seconds |
| Cooling Method | Convection up to 180A, fan assisted 62 - 120A, Fan ventilated 220 - 1250A |
| Ambient Condition Design (Chassis) | 0° to 50 °C |
| Protocol | Modbus RTU |
The SCRs are sized to withstand starting currents of 500% for 60 seconds.
Chassis units operate in an ambient condition design range of 0° to 50 °C (32° to 122°F).
The unit supports Modbus RTU over an RS-485 signal.