Instruction manual

EXT Split Flow Compound Turbomolecular Pumps
INSTALLATION
PAGE
17
Mar 07 17 Issue F
3.5 Electrical installation
The EXT Split Flow Pump should be electrically bonded to earth using the connection provided. Refer
to the instruction manual supplied with the controller to complete the electrical installation.
3.5.1 EXDC Controllers
An EXDC Controller requires connection to a suitably rated power supply. The EXDC Controller is
designed to allow a pumping system to operate in a fully automatic system.
3.5.2 EXC Controllers
The EXC Controller provides the electrical supply to the Split Flow Pump through the pump-to-
controller cable. Connect and lock the bayonet connectors at the ends of the cable to the mating
connectors on the pump and the EXC Controller (if applicable). If the cable is disconnected at the pump,
the EXC Controller output is switched off, making the cable safe. However, if the cable is disconnected
from the EXC Controller it should be noted that the other end of the cable is still connected to the
pump. Refer to the appropriate warning in Section 3.5 regarding exposure to hazardous voltages whilst
the pump is still rotating.
The EXC Controller is designed to allow a pumping system to be configured in a variety of ways, from a
basic manually-operated system to a fully automatic system with remote control.
WARNING
The customer must ensure that any electrical circuits are protected from dripping water
caused by condensation on cold surfaces.
WARNING
It is the responsibility of the customer to ensure that the power supply used is correctly
rated/protected.
WARNING
This product requires a separate power supply (not included). The power supply should
be adequately protected against a hazardous live condition (e.g. in case of a short circuit).
WARNING
The customer must ensure appropriate routing of cables and pipework to avoid slip/trip
hazards.
WARNING
Do not remove the EXDC Controller/EXC Controller cable from the pump until the
pump is completely at rest. To do so could expose personnel to hazardous voltage and
potentially damage the EXDC/EXC Controller.
WARNING
The customer must provide an emergency stop circuit to turn off power to the EXDC
controller.