Tweco 3000 Merlin - Manual (Page 37)

Manual 0-2532 4-5 OPERATION
4.04 Operating Unit Without Gas
Control Option
NOTE
This Subsection describes the normal opera-
tion of the system without the Gas Control
Option installed. Refer to Section 4.05 for
systems with the Gas Control Option installed.
This procedure should be followed at the beginning of
each shift:
WARNING
Disconnect primary power at the source be-
fore assembling or disassembling power sup-
ply, torch parts, torch and leads assemblies
or adding coolant.
A. Coolant Level
Check the coolant level at the coolant reservoir at
the rear of the Power Supply. If the coolant is down
from the top of the reservoir more than 2 inches
(50mm) add coolant.
B. Deionizer Bag
Check the condition of the deionizer bag in the res-
ervoir basket. If the bag is a yellowish brown (straw
color) then replace the bag.
C. Torch Parts
Check the torch for proper assembly. Install proper
torch parts for the application (refer to Maximizer
300 Torch Instruction Manual, Catalog No. 0-2549).
D. Input Power
Check the power source for proper input voltage.
Make sure that Power Supply is set for the proper
voltage. Close main disconnect switch or plug unit
in to supply primary power to the system. Apply AC
power to the system by placing the front panel ON/
OFF switch to the ON position. The Enable Signal
must be turned ON either by a switch or contact clo-
sure
E. Plasma Gas Supply
Connect desired plasma gas. Make sure gas sources
meet requirements (refer to appropriate Torch Instruc-
tion manual). Check connections and turn plasma
gas supply on.
F. Secondary Gas Supply
Connect desired secondary gas. Make sure gas
sources meet requirements (refer to Torch Instruc-
tion Manual). Check connections and turn secon-
dary supplies on.
Select the desired secondary gas per the following:
1. If gas secondary is desired, set secondary mode
selector switch to gas cylinder symbol position.
NOTES
Tap water should only be used for secondary
gas on machine torches.
To use tap water there must be a Water Regu-
lator (Catalog No. 8-6118) installed between
the water source and the Power Supply.
2. If tap water secondary is desired, set secondary
mode selector switch to water tap symbol posi-
tion and connect tap water to the Power Supply
rear panel at the secondary water connection. It
may take two or three minutes for the water to
start flowing out the front of the torch.
3. If no secondary gas is desired, set secondary se-
lector switch to O
2
position.
NOTE
Refer to the Torch Instruction Manual for
proper secondary gas selection.
G. Plasma Gas Purge
Enable the system by doing one of the following:
• Turn the Enable switch to ON at the front panel
of the RC6010 Remote Control
• Signal supplied through the CNC control cable
• Signal supplied from a customer supplied switch
connected to the CNC terminal block (TB2) in-
side the Power Supply