Baldor is the name on the broadest range of industrial AC and DC electric motors, from 1/50th through 15,000 horsepower.

Control Concepts services Baldor motor drives, from 1/50th through 15,000 horsepower, and every other Baldor motor, linear motor, and adjustable speed drive. 

Contact us for help with your Baldor drives.

The Baldor line of products includes:

  • AC inverters and vector controls
  • DC drives and SCR controls
  • Servos and positioning products
  • DC speed controls for PMDC and shunt-wound motors
  • AC micro drives
  • Pump and fan bypass AC drives

Baldor provides AC motor control products from soft starters to high-functionality sensorless vector technology. Their AC controls start at FHP and go through 550 HP at 115V, 230V, 460V, and 600V configurations.

Baldor also offers two lines of DC drives.

  • The BC series starts at fractional horsepower and runs through 5 horsepower for single-phase 115 and 230 Vac applications.
  • The DCS800-EP series runs from 5 to 600 horsepower for three phase 230 and 460 Vac applications.

Baldor provides starter-style and component-style microdrives with DIP switches, potentiometer or PC tool parameter configuration, integral LCD control panels and integrated potentiometers in the operator interface.

Other drives are equipped with open loop vector with encoder feedback options or V/Hz control. Baldor controls can also have sensorless vector or V/Hz controls with PID control, and quick start assistance.

Baldor Brands: Baldor-Reliance and Baldor-Dodge

Baldor drives and controls are used in a variety of industries, including:

  • Aggregate and cement
  • Air handling
  • Chemical, oil, and gas
  • Food & beverage
  • Pharmaceutical
  • Mining
  • Paper and forest
  • Unit and baggage handling
  • Water and wastewater

Baldor began offering high-efficiency performance two to four bands above NEMA Premium(R) efficiency levels (IE3) using hybrid motor design in 2016.

Control Concepts has over 30 years of experience in Baldor drive repair, service, and support.

Common Drive Failures

  • Software or programming problems
  • Non-functional cooling fans
  • Loose connections
  • Drive keeps blowing fuses or tripping breakers
  • Drive doesn’t run motor
  • Circuit board failure

Circuit board failure is the least common reason for drive failures. The most common fault that shuts down a drive is an over-current fault, of which there are 20-30 causes. We start with the dynamics of the motor and move on from there.

The Control Concepts Repair Process

We check the motor drive and terminals for substandard connections which can be caused by anything from heat cycles and mechanical vibration to reusing or over-tightening torque screws.

We conduct diode and IGBT tests on the input/output power sections before applying power to the drive unit. This is to protect against further damage from a short.

We power up the unit and perform amp readings and output frequency tests, slowly increasing the voltage until the rated input voltage of the drive is reached.

If everything functions properly, we use the drive to run a motor through basic jog functions after backing up existing programs. If the motor does not run, we check the output voltages and current ratings going to the motor to check drive function for motor rotation.

Most drive failures can be avoided through preventative maintenance.

  • Keep the drive free of dust
  • Ensure proper ventilation to prevent overheating
  • Keep everything dry and protected from moisture

Call us for more information or to schedule service.


*Baldor became a member of the ABB family of controls and drives in 2011.