Tweco Merlin 6000 Plasma Cutting CE Slave Power Supply - Manual (Page 23)

Manual 0-2603 3-7 INSTALLATION PROCEDURES
Large
Strain Relief
Power Lead
Nut
Power Lead
Terminal Bolt
A-01496
Figure 3-10 Power Lead Connection at Slave Power
Supply
c. Secure the power lead to the connection with
the lock nut removed above.
3.10 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.
3.11 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 per the following procedure:
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 3-11 Lifting the Power Supply
3.12 Pilot Resistor Adjustment
WARNING
Disconnect primary power at the source before as-
sembling or disassembling power supply, torch
parts, or torch and leads assemblies.
This Sub-Section applies only to the following Slave
Power Supplies:
• Slave Power Supplies with the revision letter 'E' or
later on the data tag
• Slave Power Supplies that have been retrofitted with
Pilot Resistors
Slave Power Supplies, as noted above, and all Master
Power Supplies contain adjustable pilot resistor circuits.
For output current below 250A, only the pilot circuit in
the Master Power Supply is activated. For output cur-
rent above 250A the Master and Slave Power Supply pi-
lot circuits are activated.
Slave and Master Supply pilot resistors are initially set at
the factory and may need to be adjusted to the customer's
input power (see Notes).