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Installation
Installation (cont.)
Fix brackets to machine frames then fix back-stud bolts of electrode to the brackets.
Remove only one set of nut and spring washer then set to the bracket and re-assemble those
fastening parts. Kindly consider about “FUJILOK U-NUT®” or the other loose-proofing nuts.
Installation of GP-1
Please see instruction manual of GP-1 for installation of GP-1.
Wiring the High Voltage Shielded Cable
Caution
REMEMBER
High voltage shielded cables have a product lifetime (approx. 10,000 hours).
The cables require constant maintenance.
Consider carrying out inspections and replacements when laying the high
voltage cables. Also, whenever the high voltage cable is damaged, it must be
repaired or replaced.
REMEMBER
Do not bend the high voltage shield cable at a sharp or right angle. The
minimum bend radius of the cable is about 60 mm (inside dimension). Also, do
not use the cable in the state it scrapes against a sharp metal plate, machine
frame edge, etc. Such a state may quickly degrade insulation of the high voltage
shield cable to cause an accident.
REMEMBER
Be sure to connect the ground wire of the high voltage shield cable terminal on
the power supply side, to the ground terminal of high voltage power supply
GP-1. Otherwise, you may get an electric shock from the body or the high
voltage cable.
REMEMBER
If the high voltage cable is broken during power distribution, sparks are emitted
from it. In that case, immediately stop using it and ask repair. Meanwhile, if a
short circuit occurs between the core wire and the shield coating (grounding
object) , the safety circuit (anomaly detection circuit) of the GP-1 is triggered to
automatically stop the power supply.
REMEMBER
The high voltage shielded cable is a special electric wire that is designed to feed
high voltage. Never damage it. Handle it with care, to prevent breakage by
acute bending, deformation by pulling, etc. Moreover, be careful to avoid getting
it wet, having metal powder (machining dust) attached, etc.
PROHIBITED
Do not modify H.V. cable (e.g. shorten).
PROHIBITED
H.V. cable should be fixed. Do not move the cable. To do so may drastically
shorten the lifetime of isolation.
PROHIBITED
Do not add pull force or weight loads to H.V. cable. Do not have H.V. cable outer
sheath to touch sharp edge or moving part of machines.
The high voltage shield cable is a special electric wire. It is a high-voltage resistance silicone cable
which is coated with a shield and polyurethane connecting to the ground portion. Connect the cable in
the following procedure:
①
Determine the wiring route of the high voltage cable from the bar to High Voltage Power Supply
GP-1. Do not be on the cable in such as a passage of heavy object over.
②F
ix the high voltage shielded cable using nylon clips, etc. on the route at least two point (the point
near by the electrode and nearby the High Voltage Power Supply GP-1) and fix the cable at the
point of every 1m. To avoid severe deformation, do not squeeze the H.V. cable with too much force.
