- 70 -
6 LED,
welding
LED illuminates when voltage is applied to the welding current
socket. In the TIG operation mode, after activating the torch but-
ton whereas in the electrode operation mode, this occurs after
selecting electrode welding.
7 LED,
protective gas on
LED illuminates when the solenoid valve is open and the protec-
tive gas can flow. After switching the device on, the hose bundle
is automatically purged with protective gas.
8
LED, ramp up
LED lights in the ramp up phase (Up-Slope).
9 Potentiometer,
ramp up
Sets the rate at which the current ramps up from the ignition cur-
rent I1 to the welding current I2. Turning direction anticlockwise
decreases the ramp rate.
10 Welding
current
7 segment display
Displays the value of the welding current of the current function.
11 Potentiometer,
I4
Sets the current I4 during pulsed operation.
12
LED, I4 active
I4 active. During pulsed operation: Toggles between the two dis-
plays I4 and I2 with fixed pulse frequency.
13
LED, ramp down
Displays the ramp down phase (Down-Slope).
14 Potentiometer,
ramp down
Sets the rate at which the welding current I2 ramps down to the
drop-off current I3 at the end of throat. The ramp down prevents
cratering.
15
Button, gas test
In order to manually purge the hose bundle with protective gas.
Pressing this button opens the gas valve without applying a weld-
ing voltage to the electrode.
During pulsed operation: When activating the button gas test, the
display (10) switches to the I4 value.
16
Display, error code
Display of possible error messages.
17 LED,
fault
LED flashes if a fault condition occurs in the device. The error
message appears in the error display.
18 Potentiometer,
gas post-flow time
Sets the gas post-flow time after finishing welding to protect the
weldpool. The time can be set from approximately 0.2 to 30s.
19 Potentiometer,
AC frequency
Continuous setting of the AC frequency from 50 Hz up to 200 Hz.
20
LED, final current I3
LED illuminates when the final current I3 is active.
21 Potentiometer,
AC balance
If the potentiometer is set to the middle position, the positive and
the negative half cycles are equal for AC welding.
This potentiometer is deactivated, when welding using DC cur-
rent (DC operation).
22 Welding
current
selector
•
DC with lift arc ignition
•
DC with HF ignition
•
Square AC with HF ignition
•
Sinusoidal AC with HF ignition
23 LED,
I1
LED illuminates, when the ignition current I1 is active.
24 Switch,
pulse welding/
normal welding
•
Fast pulse Pulse frequency in the range of 250 Hz to 5 Hz.
•
Normal pulse Pulse frequency in the range of 25 Hz to 0.5 Hz.
•
Normal welding Normal TIG welding without pulsation.
25 Potentiometer,
ignition current I1
Soft-Hot-Start
Potentiometer I1 determines the ignition behaviour for electrode
and TIG welding. It can be set as a percentage of the possible
welding current of the power supply.
26 Potentiometer,
pulse time I2
Sets the current I2 pulse time.
Содержание Aristotig 405 AC/DC
Страница 1: ...0458 165 002 9910 DTG 405 Aristotig 405 AC DC Welding rectifier Service manual...
Страница 9: ...9 NOTES...
Страница 10: ...10 CONNECTION DIAGRAM DTG 405...
Страница 11: ...11...
Страница 15: ...15 NOTES...
Страница 16: ...16 BLOCK DIAGRAM DTG 405 405a pcx...
Страница 17: ...17 Warning Some parts of this circuit are connected to mains voltage potential 405b pcx...
Страница 27: ...27 A2 COMPONENT POSITIONS a2 1b pcx a2 2b pcx...
Страница 30: ...30 A4 A11 COMPONENT POSITIONS Warning The circuit and its parts are connected to mains voltage potential...
Страница 40: ...40 A9 A13 COMPONENT POSITIONS A10 A14 COMPONENT POSITIONS...
Страница 57: ...57 209 201 212 203 204 205 206 207 208 D04 0301 1 214 215 216 218 217 219 220 110 221 222 213 202...
Страница 62: ...62 8 WAVEFORM AC2 SMOOTH WAVE ac2 pcx...
Страница 67: ...67 LOAD CHARACTERISTICS NOTES 0 10 20 30 40 50 60 70 80 90 0 50 100 150 200 250 300 350 400 A V TIG MMA DTG 405...
Страница 81: ...81 NOTES...
Страница 86: ...86 D04 0304 1 D04 0305 0 501 502 503 502 502 504 505 506 507 508 509 510 511 512 513 515 516 505 517...
Страница 91: ...page...