SECTION 4 Operation
ESP 400C Plasma Power Source
ESP 400C Plasma Power SourceESP 400C Plasma Power Source
ESP 400C Plasma Power Source
4-2
Fault
FaultFault
Fault
Indicator illuminates when there are abnormalities in
the cutting process or when the input line voltage
falls outside of the required nominal value by ±10%.
Power Reset Fault
Power Reset FaultPower Reset Fault
Power Reset Fault
Indicator illuminates when a serious fault is
detected. Input power must be disconnected for at
least 5 seconds and then reapplied.
Current Dial (Potentiometer)
Current Dial (Potentiometer)Current Dial (Potentiometer)
Current Dial (Potentiometer)
ESP-400C dial shown. ESP-400C has a range of
50 to 600 A. Used only in panel mode.
Panel Remote Switch
Panel Remote SwitchPanel Remote Switch
Panel Remote Switch
Controls the location of current control.
Place in the PANEL position for control using
the current potentiometer.
Place in REMOTE position for control from an
external signal (CNC).
Remote Connection
Remote ConnectionRemote Connection
Remote Connection
Amphenol 19 pin plug for connecting power source
to CNC.
Pilot Arc HIGH/LOW Switch
Pilot Arc HIGH/LOW SwitchPilot Arc HIGH/LOW Switch
Pilot Arc HIGH/LOW Switch
Used to select amount of pilot arc current desired.
As a general rule, for 100 amperes and below, a
setting of LOW is used. This can vary depending
on gas, material and torch used. High/Low settings
are specified in cutting data included in the torch
manual.
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