ESAB Precision Plasmarc EPP-600, Инструкция по эксплуатации, Страница: 36 / 90

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sectIon 4 operatIon
1. Apply power by closing the line (wall) switch. (The EPP-600
does not have an on / off switch). The main power light will
illuminate and the fault light will flash and then go out.
2. Select the Panel / Remote setting.
3. Set pilot arc High / Low switch. If pilot arc High / Low is se-
lected from a remote control, the switch must be in the Low
position. (Refer to cutting data in the torch manual.)
4. If using panel mode, view preset amps with the ACTUAL /
PRESET AMPS switch. Adjust current until the approximate
desired value is shown on the ammeter. If using the remote
mode, placing the actual Amps / Preset Amps switch in the
Preset Amps position provides the initial output current com-
manded by the remote control.
5. Begin plasma cutting operation. This may include manually
setting up other options, depending on the total plasma
package.
6. If using panel mode, after cutting has begun, adjust current
to desired amount.
7. If cutting or marking fails to initiate, check for fault light. If a
fault light illuminates, refer to troubleshooting section.
note:
The fault light flashes when the contactor is first
turned on signifying the DC Bus powered up nor-
mally.
4.3 sequence of operation
SECTION 4 Operation
ESP 400C Plasma Power Source ESP 400C Plasma Power Source ESP 400C Plasma Power Source ESP 400C Plasma Power Source
4-4
Begin
Cutting
ACTUAL AMPS
PRESET AMPS
HIGH
LOW
PILOT
ARC
PANEL
REMOTE
Apply Power
4.3 Sequence of Operation
1. Apply power by closing the line (wall) switch.
(The ESP-400C does not have an on/off
switch). The main power light will illuminate
and the fault light will flash and then go out.
2. Select the Panel/Remote setting.
3. Set pilot arc High/Low switch. (Refer to cutting
data in the torch manual.)
4. If using panel mode, view preset amps with the
ACTUAL/PRESET AMPS switch. Adjust current
until the approximate desired value is shown on
the ammeter.
5. Begin plasma cutting operation. This may
include manually setting up other options,
depending on the total plasma package.
6. If using panel mode, after cutting has begun,
adjust current to desired amount.
7. Check for fault light. If a fault light illuminates,
refer to troubleshooting section.
Note: The fault light flashes when the contactor is Note: The fault light flashes when the contactor is Note: The fault light flashes when the contactor is Note: The fault light flashes when the contactor is
first turned on signifying the DC Bus powered up first turned on signifying the DC Bus powered up first turned on signifying the DC Bus powered up first turned on signifying the DC Bus powered up
normally.
normally. normally. normally.
4.4 Arc Initiation Settings
The time to achieve full current can be adjusted to
suit your particular system. This feature uses 50%
of the cutting current to start, dwell and then
gradually (less than a second) achieve full current.
The ESP-400C is factory shipped with this feature
enabled. The default settings are:
Minimum Start Current
40A
Start Current 50% of cut current
Timing to achieve full current 800 msec
Dwell Time 50 msec