Ulvac C30HVRT - Wire Rooting for Compressor and Other Equipments

Section 4
4-10
ULVAC CRYOGENICS INCORPORATED
Installation, Piping, and Wiring
Connecting remote cable
Connect the cable plug to the compressor receptacle. After connecting the plug to the
“REMOTE RESPONCE” receptacle on the rear panel of the compressor, turn the rotating
part (coupling nut) of the plug to the right. Turn it until it won’t turn any more to connect
the plug properly.
4.6 Wire rooting for compressor and other equipments
The compressor and other equipments must be wired in accordance with applicable local
and national standards where the equipments are installed as well as international
standards (e.g., NEC/CEC). Signal wires, sequence control wires, and power wires for
connecting equipments must be wired in separate conduits to prevent interference during
the operation.
In addition, analog wire is sensitive to and susceptible to noise, it must be separated from
other wirings in the method above.
If it is impossible to wire in separated conduits, keeping enough distance between those
wires can be effective as “separating wires”. Interference between wires depends on
electromagnetic force but in general it is effective to keep the distance of 300mm or more
between each wiring.
CAUTION
The remote wires must not be either put in the same conduit or routed with the power wires.
It may cause interference with the compressor operation. Failure to observe this warning
may result in damage to and/or break down of the equipment.
NOTE: Electromagnetic interference where the C30HVRT system, consists of the compressor
and the cryocooler, effect to other equipments is not critical, however if the wiring of the
system is not separated from other equipments it may cause interference to sensitive
sensor wires, analog wires, and other high impedance wiring of other equipments.