Tweco 6000 CE Merlin - Manual (Page 34)

INSTALLATION PROCEDURES 3-16 Manual 0-2601
Cable From
Gas Select Option
GAS CONTROL
Connector (J63)
A-01508
OUTPUT TO CONTROL
MODULE
AIR PLASMA INPUT
N 2 PLASMA INPUT
O 2 PLASMA INPUT
PLASMA GAS
Ar/H 2 PLASMA INPUT
Figure 3-25 Optional Gas Control Interface Connection
3.13 Master/Slave Parallel Cable
Connection
The interface between the Master and Slave Power Sup-
ply is made through the Parallel Cable. Connect one end
of the cable to the rear of the Master Power Supply at J54.
The other end connects to the rear of the Slave Power
Supply at J15.
3.14 Lifting Options
WARNING
Do not lift a power supply equipped with a cylin-
der rack running gear.
The recommended method for lifting the power supply
is to use a forklift as follows:
1. Approach from the front or rear of the unit.
2. Place the forks between the rear wheels or the front
casters.
3. Center the forks under the unit and carefully check for
proper balance before lifting.
Approach From Front Or Rear
Do Not Lift From Sides
A-01499
Figure 3-26 Lifting the Power Supply
3.15 Pilot Resistor Adjustment
This Sub-Section applies only to the following Master and Slave
Power Supplies:
• Merlin 6000 Master Power Supplies with the revision let-
ter 'C' or later on the data tag
• Slave Power Supplies with the revision letter 'E' or later
on the data tag
• Slave Power Supplies that have been retrofitted with Pi-
lot Resistors
Master and Slave Power Supplies, as noted above, contain
adjustable pilot resistor circuits. For output current below 250A,
only the pilot circuit in the Master Power Supply is activated.
For output current above 250A the Master and Slave Power
Supply pilot circuits are activated.