Edwards Turbo Pump Controllers

An Edwards turbo pump depends on its controller to start safely, accelerate to full speed, monitor bearing and motor conditions, and shut down without damage. When a controller fails, the turbo pump stops with it. At Provac Sales, we supply Edwards TIC and EXC turbo pump controllers and EXDC drive modules, and we repair TIC and EXC series controllers in house.

Edwards Controller Models We Carry

Our Edwards turbo controller collection includes:

• Edwards TIC-100W turbo and instrument controller
• Edwards TIC-200W turbo and instrument controller
• Edwards EXC-100L and EXC-100E controllers
• Edwards EXC-120 controller
• Edwards EXC-300 controller
• Edwards EXDC drive modules for compatible EXT turbo pumps

Some listings are new and others are rebuilt. Each product page shows the condition, supply voltage and any included cables.

TIC vs EXC: What Is the Difference?

Edwards has used two main families of turbo controllers:

• TIC (Turbo and Instrument Controller) units control a turbo pump and can also read and display several active gauges and control a backing pump. The W in TIC-100W and TIC-200W refers to the power rating, with the 200W version suited to larger turbo pumps. TIC controllers often include RS232 communication for remote monitoring.
• EXC controllers are dedicated turbo controllers designed for EXT series pumps. Different EXC models support different pump sizes and power levels, with the EXC-300 suited to larger EXT pumps.
• EXDC drive modules are compact electronic drives that attach to compatible EXT turbo pumps and are typically powered and controlled by an external supply or controller.

Why Controller Compatibility Matters

Turbo controllers are not interchangeable. Each one is designed for specific pump motors, speeds, power levels and connectors. Using the wrong controller can prevent the pump from starting, cause it to run at the wrong speed or damage the pump's motor or bearings.

Before ordering, confirm:

• The complete turbo pump model, such as EXT-70, EXT-75DX, EXT-250, nEXT-85D or nEXT-240D
• Whether your pump has an onboard drive (such as nEXT D models) or needs an external drive
• The existing controller model and part number
• Cable type and length between the controller and pump
• Supply voltage and power rating
• Whether you also need gauge or backing pump control from the same unit
• Any communication protocol needed for system integration, such as RS232 or a logic interface

The easiest way to confirm compatibility is to send us photos of the controller label, pump nameplate and connectors.

Applications

Edwards turbo controllers are used wherever Edwards turbo pumps are installed:

• Analytical instruments, including mass spectrometers and electron microscopes
• Turbo pumping stations and test systems
• Research chambers in physics, chemistry and materials science
• Thin film deposition and surface science systems
• Leak detectors and helium test stations
• Semiconductor metrology and inspection tools

Signs Your Edwards Controller Needs Service

Controller problems can look like pump problems. Common symptoms include:

• The turbo pump will not start, or starts and then trips
• Fault codes or warning lights on the controller display
• The pump fails to reach full speed
• Intermittent shutdowns, especially when warm
• No display, no communication or erratic readings
• Burnt smell or visible damage on the controller

Before replacing the pump, it is worth testing the controller. A controller fault is often less expensive to fix than a turbo pump rebuild. Our team can help you narrow down the cause.

New vs Rebuilt Edwards Controllers

Many Edwards controllers, especially older EXC models, are no longer in current production but still run thousands of installed turbo pumps. A rebuilt controller is often the most direct way to keep an older system running without replacing the turbo pump as well. New TIC controllers suit new installations and users who want gauge integration and current features. Each listing and quotation confirms the condition and warranty coverage.

Edwards Controller Repair Services

Provac Sales repairs Edwards EXC and TIC series turbo pump controllers. Repair can include diagnosis, replacement of failed components, power supply repair and functional testing with a turbo pump. If you are sending a controller and pump together, tell us so we can test them as a set.

Before shipping, submit an RMA request and include the controller model, pump model, symptoms and any fault codes. See our pump repair page for more information.

Upgrading From an Older Controller

In some cases, upgrading to a newer controller makes sense, for example when an older unit is no longer repairable or when you need gauge integration and remote communication. Any upgrade must still be compatible with your turbo pump. Our team can review your existing setup and recommend whether a repair, a like-for-like rebuilt unit or an upgrade is the better option.

Frequently Asked Questions

Can a TIC controller run an EXT turbo pump?

TIC controllers are designed for certain Edwards turbo pumps and drive modules. Compatibility depends on the specific pump and drive. Send us both model numbers and we will confirm.

Do nEXT turbo pumps need an external controller?

nEXT D models have an integrated drive and can be run from a suitable power supply. A TIC controller adds control, display and gauge functions. Confirm the right setup for your pump model.

What does the fault code on my Edwards controller mean?

Fault codes vary by model. Check the manual for your controller, or send us the code and model number and we will help interpret it.

Can I use a non-Edwards controller with an Edwards turbo pump?

Generally, no. Turbo pump motors and drives are designed around specific controllers. Using the wrong controller risks damage.

Installation Tips for Turbo Controllers

A replacement controller should be installed with the same care as the turbo pump itself:

• Power down and isolate the system before disconnecting the old controller
• Label every cable before removal so connections go back in the correct places
• Inspect the pump cable and connectors for damage, since a worn cable can cause faults that look like controller failures
• Keep the controller in a well-ventilated location, away from heat sources and liquids
• Check that any interlocks, such as cooling water or backing pump interlocks, are reconnected and working
• Confirm the controller settings, such as start delay, standby speed or vent timing, match your system's previous configuration

On the first start, watch the pump accelerate and note the time to reach full speed. That figure is a useful benchmark for spotting bearing wear or backing problems later. If the pump does not start or trips during acceleration, stop and contact our team before trying repeated restarts.

Request a Quote on Edwards Turbo Pump Controllers

Send us the controller model, turbo pump model, cable details and supply voltage. We will confirm compatibility and availability, or quote a repair of your existing controller. Contact us or call 831-462-8900.