pro-wave 300gtsw
6-8
June 21, 2012
6.09 Subsystem Test Preparation
The following initial conditions must be met prior to
starting any of the procedures in the subsystem tests.
1. Set the PROCESS SELECTOR switch to STICK
mode.
2. Set the OUTPUT MODE to DC OUTPUT position.
3. Set the AMPERAGE control to its minimum (fully
counterclockwise) position.
4. No connection should be made to the remote
receptacle(s).
5. Connect the appropriate input voltage. (Check the
data tag on the rear of the power supply for the
proper input voltage.)
NOTE
Operate at ALL input voltages as noted on the
nameplate on the rear panel when testing the
power supply.
6. Close primary power source wall disconnect
switch or circuit breaker.
7. Place power supply MAIN CIRCUIT BREAKER
(MCB) on rear of unit in the ON position.
!
WARNING
Dangerous voltage and power levels
are present inside this unit. Be sure
the operator is equipped with proper gloves,
clothing, eye and ear protection. Make sure no
part of the operator’s body comes into contact
with the workpiece or any internal components
while the unit is activated.
This section provides specific procedures for verifying
the operation and replacement of each subsystem within
the power supply. Before undertaking any of these
procedures, eliminate the obvious first - visually inspect
the suspect subsystem for physical damage, overheating,
and loose connections.
6.10 Main Circuit Breaker (MCB)
Replacement Procedure
!
WARNING
Disconnect primary power at the source before
performing this procedure.
Refer to figure 6-3 on opposite page.
to remove the MaIN CIrCUIt Breaker:
1. Remove the four screws from the rear panel that
secure the MAIN CIRCUIT BREAKER assembly to
the rear panel.
2. Remove the input power leads and output power
leads marked R and S in figures 6-4 and 6-5 from
the MCB terminals. Remove the MCB from the
metal shield. If the metal shield must be removed,
note that it is connected to a GREEN ground lead.
To replace the MCB, reverse the above steps, replacing the
input and output leads in the same matching positions.
Refer to figure 6-4 or 6-5.
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