Control/Drive-VFD Repair
CONTROL/DRIVE-VFD REPAIR SERVICES
At EMX, Our DCS staff has the capability of providing solutions for your drive and control system applications using electrical and electronic components.
Whether the customer’s application requires an AC or DC drive, a simple contactor or a more complex motor soft starter, variable frequency device, or a sophisticated vector or servo drive, EMX can also design, install and service the installation. Field services are provided when in need of servicing existing drive systems or to start up new systems.
AC Drive Systems
Our AC Drive System Services
Troubleshooting & Repair of all Motor Starting/Protection Equipment
Control System Integration and Design Modifications
PLC Troubleshooting and Programming Design
Motor Soft-Start Troubleshooting, Programming and Start-Up
Servo Control Systems
Synchronous and Wound Rotor Motor Control Troubleshooting
Variable Frequency Drive Installation, Optimization, Programming
VFD'S
What are (VFD) Variable Frequency Drives ?
A Variable Frequency Drive (VFD) is is a type of motor controller used in electro-mechanical drive systems to regulate the speed and torque of AC Electric Motors.
It accomplishes this by adjusting the frequency and voltage of the power being supplied to the connected AC motor. VFDs also have the capacity to control ramping up of an AC motor when starting for a smooth start-up or to prevent heavy loads from straining AC motors on start-up. They can also control the ramp-down of the motor when stopping. VFDs improve motor efficiency, lower starting currents and maintenance costs and prevent water hammer damage.
VFDs are AC Motor Systems driving pumps in water treatment plants by regulating water flow, conveyor belts, compressors, fans, servo systems, power plants for frequency regulation, robotics for speed and torque control, CNC machine systems and VFD-fed welding machines.
We know the importance of motor starting solutions and that is why we offer only the finest in AC Drive Technology
Variable Frequency Drives are an integral part of Industrial Electro-Mechanical systems.
Fan systems, compressors and pumps can all be made more energy efficient when coupled with high efficiency motors and variable frequency drives.
We service and install all manufactures of Variable Frequency Drives, and we
also fully understand the mechanical equipment served by the drives.
Your Control and Drive issues are expertly diagnosed, right down to the component level.
Our Variable Frequency Drive (VFD) Services
Variable Frequency Drive Commissioning, Testing & Repair
Input and Output Power Testing
Diode and IGBT Testing
Connections
Installation
Inspections & Preventive Maintenance
Integrated PLC and Servo Control Systems
Parts Replacement
Retrofits
If you’re looking for a reputable company with a proven history of providing quality repair for DC Drive Systems, you’ve found it!
Electromechanex, LLC DC Drive Services has the experience to get your defective drive running like new again quickly and economically. Our repair process starts with the receipt of your parts and by conducting multiple tests which are an integral part of determining performance, and providing insight to the repair team, and ends with our experts taking all the proper precautions when shipping the item back to you.
A repair would typically include checking 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. Next we dismantle the drive and perform cleaning all of the internal components and ensure that all internal components are free from debris and contaminant ingress. Testing of the electronic components to determine fault location and the probable cause of the failure. Defective components were identified and replaced with new or premium-grade parts exceeding original specifications. Components near failure were also be replaced to ensure lasting operation and prevent future issues. A final quality control inspection was performed to ensure all required tests and procedures were completed before the unit is released.
Our DC Drive System Solutions
Troubleshooting & Repair of all Motor Starting/Protection Equipment
Control System Integration and Design Modifications
6 Pulse, 12 Pulse and 24 Pulse Solutions
DC Drive System Troubleshooting, Programming and Start-Up
Regenerative and Non-Regenerative
Retrofit Designs for Multiple Manufacturers
DC Drive Installation, Optimization, Programming
Electromechanex, LLC works with customers throughout the region to identify the best possible motor drives and controls solution that will maximize the efficiency of a customer’s application. An electric motor that is matched with a properly designed motor control or drive will experience a longer motor life, less downtime and improved energy and cost savings. These results are why our technicians work with you to find the right Soft Start or VFD for your electric motor setup. The complexity and variety of VFDs means it’s critical to pair the right VFD with the right electric motor application. Our analysis includes ensuring your motor is rated for VFD use; determining cable length; filter requirements, open or closed loop, inputs and outputs.
Using a soft starter or variable frequency drive temporarily reduces the load and torque as well as the inrush current of the motor during start up. This reduces the mechanical stress on the motor and shaft, and reduces the electrodynamic forces on the attached power cables and electrical distribution network, extending the lifespan of the system.
Machine drives, primarily consisting of electric motors, pumps, and fans, account for about 50% of the manufacturing sector’s electric power consumption. The right drive system can reduce usage and energy savings quickly translate to dollars. EMX works step-by-step to provide you with the best variable frequency drive for your electric motor needs. We can even check for Stray Currents after installation to ensure that the motor is properly protected and does not suffer premature bearing failure. They also reduce thermal and mechanical motor and component stresses during start-up. Using a soft starter or variable frequency drive temporarily reduces the load and torque as well as the inrush current of the motor during start up. This reduces the mechanical stress on the motor and shaft, and reduces the electrodynamic forces on the attached power cables and electrical distribution network, extending the lifespan of the system. When compared to traditional across the line starting, VFDs and soft starters offer a considerable power reduction, lowering energy consumption and monthly utility bills and VFDs allow for controlled speed of a motor.
Soft Start Controls
Electric motors incur a tremendous amount of stress during start-up process. Soft start devices, as the name indicates, help ease this stress, thereby reducing the wear and tear. While soft starters may not be as common as VFDs, there are many instances when a soft starter may be the right choice for your motor. Applications with pumps, conveyors and fans are prime candidates for soft start devices because of their characteristic stop-start nature. Soft starters minimize the start-up stress by slowly ramping up the voltage instead of blasting a static motor with a large energy jolt.
- Single-phase
- Two-phase units
- Three-phase units
- Open-loop designs
- Closed-loop designs
- Voltage and current variations
- Diagnostic sensors
- Safety and mounting variations
- Combination (Starter, Overload, Breaker)
- Open or Enclosed
In addition to AC/DC Drive Repair, EMX provides a total package offering system integration services, and after sales service and support, including:
- Transformers
- Motor Controls: Solid State and Conventional
- PLC Systems Programming/Design
- UPS Systems
- SERVO Drives & Motors
- Switchgear
Our technical staff can examine your current systems and recommend upgrades and retrofits to keep your production line running at peak efficiency.
