Turbo vacuum pumps: Edwards (formely known as BOC Edwards) turbomolecular vacuum pumps

Edwards vacuum (formerly BOC Edwards) Turbomolecular pumps: EXC Controller range, for Edwards EXT Turbo pumps

Edwards (formerly BOC Edwards) Vacuum - Turbo pumps and accessories

EXT turbomolecular pumps

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Turbomolecular pump controllers

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EXT accessories

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EXPT combined outfits

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STP magnetically levitated turbomolecular pumps and accessories

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Edwards turbo molecular pumps (turbo vacuum pumps) overview, information and definitions

Edwards Turbo Pump EXC controllers

EXC100E, EXC100L, EXC120, and EXC300 controllers

Our electronic drive EXC Controllers provide power and control for EXT pumps and accessories. There are seven Controllers: EXC100E, EXC100L, EXC250E, EXC250L, EXC120, EXC300. All of these controllers are compatible with our 80 V d.c. EXT turbomolecular pumps with brushless d.c. Motors.

Edwards EXC controller range, for EXT turbo pumps

The EXC120 with a maximum power output of 120 W covers most pumping applications. The EXC300 is a high power version of the EXC120 and will run EXT pumps up to full speed faster than the EXC120 and will maintain pump performance at higher inlet pressures. The EXC100 and EXC250 range of controllers have no front panel controls, and are intended for remote control only. The EXC100E and EXC250E have an external connector for use with the 1M, 3M and 5M pump-to-controller cables listed in the EXT accessories. The EXC100L and EXC250L are equipped with an integral 1M pump-to-controller cable.

Edwards EXC controller range  - front panel controls and indicators

With the exception of the EXC100 and EXC250 range, all controllers have the following front panel controls and indicators:

• Start/Stop . to switch the pump on and off
• Standby . to switch the pump into standby mode, at 70% of full speed
• Heater . to switch the bakeout band on and off
• Fail indicator LED . is lit when the turbomolecular pump has tripped due to over-temperature or overload.
• Electrical supply indicator LED . is lit when the EXC is switched on.
• Speed indicator bar graph . has a four segment display to show when the turbomolecular pump is operating and has reached 25%, 50% and 75% of nominal speed.

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Edwards EXC controller range - rear panel connections

All of the EXC Controllers have rear panel connectors for logic interface (for remote control), air-cooler, vent-valve and Active vacuum gauge. In addition, the EXC120, EXC300 have connectors for bakeout band electrical supply and rotary pump electrical supply switching.

The logic interface facilities are:

• Remote control of Start, Stop and Standby.
• Vacuum system interlocks to prevent incorrect operation of the turbomolecular pump.
• Normal and fault condition outputs
• 0-5 V d.c. analog output proportional to turbomolecular pump speed (0-10 V d.c. for EXC100 and EXC250 range)

The air-cooler and vent-valve electrical supplies are 24 V d.c. outputs which are suitable for use with Edwards EXT accessories. The Active gauge connector is suitable for use with the Edwards Active vacuum gauge heads, allowing the operation of the gauge head and the turbomolecular pump to be interlocked.

Edwards EXC controllers - Features & benefits

• Controllers can drive different pumps.
• Switched-mode power supplies which automatically adjust to any electrical supply.
• Electromagnetic compatibility which exceeds the requirements of the European generic immunity and emission standards.
• Regenerative power supply which provides vent-valve control options.
• Rear panel sockets for vent-valve, air-cooler and Active vacuum gauge.
• Full remote control.
• Standby and bakeout band control from front panel (except EXC100E, EXC100L, EXC250E and EXC250L).
• User selectable "normal" speed and time-out settings.
• 0-5 V d.c. analog output proportional to turbomolecular pump rotational speed. (0-10 V d.c. for EXC100E and EXC100L).

Edwards EXC controllers - technical data

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Edwards EXC controllers - Ordering information

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Edwards EXC controllers - Dimensions

A Front panel

B View from top

C Allowance for cable bend

D Panel cut-out

E View from side

F Clearance for ventilation

G Optional adaptor plate, to fit EXC100E in place of EXC120E