For information about how to do this, refer to Install a remote on-off
switch on page 201.
A feature of the control PCB is that it offers redundancy to one remote on-off switch. When the redundant
remote on-off feature is selected, signals from two remote on-off switches are necessary for the plasma
power supply to work.
A 24 VDC (500 mA) and return (GND) from the CNC or controlling device to the expansion PCB are
necessary for redundant remote on-off for the expansion PCB and input to the control PCB. Make sure to
use a separate cable between the redundant remote on-off input and main control PCB.
For information about how to do this, refer to Install a redundant remote
on-off switch on page 207.
When at least one remote on-off switch is set to OFF (disabled), electric power remains ON (active) to the
following parts:
■
Power-indicator LED on the front of the plasma power supply
■
Control PCB
■
Control transformer (can be different on input and output)
■
Input to the relay that controls the 48 V power supply
■
24 V power supply
■
120 V to the input side of the contactor or contactors
■
120 VAC
■
220 VAC on the power distribution PCB
■
120 VAC to the input side of the 40 V power relay
■
220 VAC to the input side of the cooler power relay
Process-gas requirements for all gas connect consoles
You must supply the process gases for your cutting system.
Process-gas requirements include the following:
■
Nitrogen is required for all processes.
■
Air is required for H
2
mix processes.
■
Water can be used as a shield fluid for plasma power supplies that have a VWI or OptiMix gas
connect console. Refer to Shield-water requirements (VWI and OptiMix) on page 55 for the
specifications and requirements for water that is used for shield purposes.
Qualifications and Requirements
2
48
811530 Instruction Manual XPR460
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