Kemppi KMS 300, Руководство по эксплуатации, Страница: 9 / 14

EN
2.4 WELDING AND EARTH CABLES
Recommended copper cables with cross-sectional area are as follows:
FastMig KMS 300 50 – 70 mm²
FastMig KMS 400 70 – 90 mm²
FastMig KMS 500 70 – 90 mm²
In enclosed table are shown typical load capacities of rubber insulated copper cables, when
ambient temperature is 25 °C and lead temperature is 85 °C.
Cable Duty cycle ED Voltage loss / 10 m
100 % 60 % 30 %
50 mm² 285 A 370 A 520 A 0.35 V / 100 A
70 mm² 355 A 460 A 650 A 0.25 V / 100 A
95 mm² 430 A 560 A 790 A 0.18 V / 100 A
Do not overload welding cables due to voltage losses and heating.
Fasten the earth clamp of the return current cable carefully, preferably direct onto the piece to
be welded. The contact surface of the earth clamp should always be as large as possible.
Clean the fastening surface from paint and rust.
3. OPERATION CONTROL SWITCHES AND POTENTIOMETERS
3.1 MAIN SWITCH I/O
When you turn the switch into I-position, pilot lamp H11 on the front face is illuminated and
the machine is ready for use.
NOTE!
Always turn the machine on and off with the mains switch, never use the mains plugs as a
switch.
3.2 PILOT LAMPS
The pilot lamps of the machine report the electric operation:
The green pilot lamp H11 when lit indicates that the machine is on and ready for use and it is
connected to the mains supply with the main switch in the I-position.
H12 indicates when lit that the thermal protection of the machine has been activated due to
over heating. The cooling fan will continue to run and cool the machine down and when the
lamp is off the machine is ready to weld.
3.3 OPERATION OF COOLING FAN
In FastMig power sources there are two simultaneously operating fans.
• The fan is started for a moment when main switch is placed into position I.
• The fan will start during welding as the machine heats up and it will run for 1 to 10
minutes after the welding has stopped.
4. MANUAL METAL ARC WELDING
The FastMig power source can be used in electrode welding by connecting a FastMig
MFS 53, MFS 55 or MSF 57 wire feeder to it. The power source can be made suitable for
electrode welding without a wire feeder by connecting an R10 or R20 remote control to the
X14 or X15 terminal at the back of the power source for welding current adjustment, and the
welding power cable connected to the power source’s (+) connector X11 or X12.
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FastM
ig KMS 300, 400, 500 / © Kemppi O
y / 1110