Edwards B777-51-000, Instruction Manual, Page: 36 / 40

B777-50-880 Issue D
Page 30 © Edwards Limited 2013. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Service, spares and accessories
7.4 Accessories
7.4.1 Installation
The accessories available for use with the EXT556H turbomolecular pumps are described in the following Sections.
Figure 6 shows how the accessories are fitted to an EXT pump.
7.4.2 EXC controller
The Edwards EXC Controllers provide the facilities necessary for operating a pumping system based on an
EXT556H pump. The Item Numbers of the EXC Controllers are given in
Table 11 .
7.4.3 Pump-to-controller cable
A pump-to-controller cable must be fitted between an EXC Controller and the EXT pump. A cable is not supplied with
the EXT Pump or the EXC Controller (except EXC250L). The following cables are available:
7.4.4 EXDC drive modules
Fit an EXDC Drive Module as an alternative to an EXC Controller and pump-to-controller cable.
Table 11 - EXC controller
Controller Voltage Item Number
EXC250E 90 – 264 V ac D396-35-000
EXC250L 90 – 264 V ac D396-36-000
EXC300 90 – 132/180 – 264 V ac D396-14-000
Table 12 - Pump-to-controller cable
Cable Length Item Number
Pump-to-controller 1 m D396-18-010
Pump-to-controller 3 m D396-18-030
Pump-to-controller 5 m D396-18-050
Table 13 - EXDC drive modules
Drive module Item Number
EXDC160 80V D396-41-000