Edwards EXC 100 Turbo Pump Controller, D39620000

Overview:

The Edwards EXC Turbo Pump Controller generates the electrical supply and the control signals necessary to operate an EXT pump and its accessories.

The Controller has a high-efficiency, auto-ranging power supply which adjusts itself to any external electrical supply in the specified voltage range. The power supply converts the single-phase electrical supply into a regulated d.c. electrical supply to control the operation of the EXT pump. The pump has three Hall effect devices which operate as rotor position sensors. These sensors ensure that the drive current is correctly switched to the phase-windings of the pump-motor . The Hall effect devices also generate a speed signal which the Controller uses to regulate the rotational speed of the pump.

The Controller has a secondary regenerative supply which uses the d.c. motor of the EXT pump as a generator. If the electrical supply fails, the regenerative supply provides the Controller with a back-up source of power without the need for batteries. The Controller uses the regenerative supply to maintain the electrical supplies to the vent-valve, air-cooler and AIM gauge (if connected) until the pump speed falls to below 50% of full rotational speed.

The Controller has no front-panel controls and can only be operated through the logic interface. To operate the EXT pump, you must therefore connect the Controller to your own control equipment. Alternatively, you can configure the mating-plug for the logic interface connector so that the EXT pump starts to operate as soon as the electrical supply to the Controller is switched on.

This Controller is designed for the following Mass Spectrometer Turbo Pumps:

• Edwards EXT 70 Turbo Pump
• Edwards EXT 70H Turbo Pump
• Edwards EXT 250 Turbo Pump
• Edwards EXT 255H Turbo Pump

THERE ARE NO RETURNS ON THIS PRODUCT IF PRODUCT IS OPENED OR USED.