S0740 800 191/E080229/P78
-- 67 --
cu19f3calarcv
1. Welding with the filler wire positive: voltage sensing from the wire
This is the commonest arrangement of arc voltage sensing.
V
= external voltmeter.
R
= load resistor.
The control panel must show the same voltage value as shown on the external
voltmeter
±
0.6 V. Adjust the display value by means of potentiometer R87.
2. Welding with the filler wire negative: voltage sensing from the wire
V
= external voltmeter.
R
= load resistor.
The control panel must show the same voltage value as shown on the external
voltmeter
±
0.6 V. Adjust the display value by means of potentiometer R103.
3. Welding with the filler wire positive or negative: no external sensing from the wire
or workpiece
V
= external voltmeter.
R
= load resistor.
The external voltmeter shows a value 0.2 -- 1.6 V higher than the value shown on the
control panel. Do not adjust the value shown on the control panel: this is already
adjusted from 1) above.
4. Check measurement of the connection for voltage sensing from the workpiece
Measure the resistance between connector pin G on AP1 and input X3 on the circuit
board. See the circuit diagram on Page 66.
Summary of Contents for Aristo Arc 4000i
Page 14: ...S0740 800 191 E080229 P78 Mig U4000i valid for serial number 803 xxx xxxx 14 cu19_00...
Page 15: ...S0740 800 191 E080229 P78 15 cu19_00...
Page 16: ...S0740 800 191 E080229 P78 Mig 4000i valid for serial number 803 xxx xxxx 16 cu19_00...
Page 17: ...S0740 800 191 E080229 P78 17 cu19_00...
Page 18: ...S0740 800 191 E080229 P78 Tig 4000i valid for serial number 803 xxx xxxx 18 cu19_00...
Page 19: ...S0740 800 191 E080229 P78 19 cu19_00...
Page 20: ...S0740 800 191 E080229 P78 Arc 4000i valid for serial number 803 xxx xxxx 20 cu19_00...
Page 21: ...S0740 800 191 E080229 P78 21 cu19_00...
Page 28: ...S0740 800 191 E080229 P78 28 ct32_15 15AP1 Component positions...
Page 41: ...S0740 800 191 E080229 P78 20AP1 Component positions 41 cu19_20_1...
Page 49: ...S0740 800 191 E080229 P78 49 cu19_20_2 20AP2 Circuit diagram...