BOC Edwards CV-6SL, Instruction Manual

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2.3 Filament Module
The Filament Module is a stand-alone assembly and is located close to the filament and the vacuum
chamber. The high current (up to 75 amperes) in the secondary of the transformer can produce
excessive losses if the connections are not short and low in inductance. The box cover can be
removed for mounting the assembly to a secure location close to the bushings feeding
power to the filament. The cover is interlocked and must be reinstalled for operation to commence.
2.4 Electrical Power
The customers' input power plugs to a square flange receptacle TB-1 located on the lower left corner
of the rear panel of the power supply. All the power required for the system inputs at this point. A
mating plug is provided for the customers input power wires, four female pins and cable clamp are
included as part of the assembly.
The CV-6SL can be ordered for the following input voltage sources.
MODEL #CV-6SL 208V #6024-6010
208V-50/60Hz-3 Phase-4 Wire
Connect using AWG #10 stranded UL1015 wire
MODEL #CV-6SL 400V #6024-6009-0
400V-50/60Hz-3 Phase-5 Wire
Connect using AWG #12 stranded UL1015 wire
The 400V systems require an electrical neutral. The neutral supplies power to the single phase gun
loads. The neutral current is typically 6 amperes. An external EMI filter such as Schaffner FN356-25-
33 or FNL256-25-47 may be needed if conducted noise is a problem in the installation.
2.5 Grounds
Two ground studs are provided on the HVPS rear panel. Also the filament output box has a ground
stud. In addition, the interconnect cable has a ground conductor that ensures all assemblies are
grounded when interconnected. Connect a #10 AWG minimum protective earth ground wire to the
ground studs provided.
Power Supply: Rear Panel
Filament Transformer Module: Interface Panel
Each assembly should be connected to its local ground.
Power Supply: A protective earth ground should be provided as part of the electrical power input.
The user should make sure that each cabinet containing the power supply is grounded.
Filament Module: Ground to base of vacuum enclosure