This is a basic installation and operation guide for Motortronics VMX series digital solid state soft starters, which have a current rating of 18-1250A. The document introduces the features and characteristics of the soft starter, and details the installation, control connections and programming of the product.
This guide provides step-by-step instructions for installing and operating the VMX Series digital solid state soft starters. It covers minimum settings, mounting clearances, electrical connections, and safety warnings. The VMX Series is a digitally programmable soft starter using a six-SCR design, designed for smooth motor acceleration and overload protection. It requires 120VAC control power and includes programmable features for starting cycles and protection.
The guide includes tables for model ratings, dimensions, and weights, as well as detailed sections on receiving, unpacking, inspecting, and cleaning the unit. Safety precautions are emphasized, including disconnecting power before servicing and using lockout tags. The document also covers control connections, bypass contactors, and programming options for motor overload protection and starting parameters.
| Starting Current | 350% for 30 seconds, up to 600% for 10 seconds |
|---|---|
| Ambient Temperature (Panel Unit) | 0 to 50°C (32 to 122°F) |
| Maximum Heat Dissipation | Less than 50W |
Connect L1, L2, L3 to power lines and T1, T2, T3 to motor, connect control wires and control power, and program motor FLA.
The VMX Series is a digitally programmable solid state reduced voltage soft starter using a six SCR design.
The unit requires a minimum of 1 inch (25 mm) on either side and 4 inches (100 mm) on the top and bottom.
You must use clean, dry compressed air at 80 to 100 psi to remove surface dust.