Kemppi Pulse 350 - Manual (Page 11)

EN
Cable Duty cycle ED Voltage loss / 10 m
100 % 60 % 30 %
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.
NOTE! Always check the serviceability of the earth return cable and clamp. ensure the metal
surface to which the cable is connected is clean from metal oxide or paint. Check the connector to
the power source is fastened correctly.
2.5.6 Interconnection with wire feeder
Kemppi provide a choice of interconnection cable sets for different environments. Only
materials that meet the demands of Kemppi's international markets are used in their
construction.
used correctly, Kemppi cables sets ensure high welding performance and serviceability.
Before use, always ensure the cable set is in good condition and that connectors are correctly
fastened. loose connections reduce welding performance and may result in damage to
connectors due to heating effects.
For correct connection and configuration of cable sets, please refer to schematic drawings:
2.4.1 and 2.4.2
NOTE! KempArc Pulse 350/450 power sources are designed to be used oNLY with Dt 400 wire feed
unit and KF 62 control panel.
3. opErAtIon Control
3.1 mAIn swItCh I/o
When you turn the on/off switch into i -position, the pilot warning lamp is illuminated and
the machine is ready for use. always turn the machine on and off with the power source mains
switch. never use the mains plugs as a switch.
3.2 pIlot lAmps
the pilot lamps of the machine report its operational state:
the green pilot lamp when lit, indicates that the machine is switched on and ready for
use, and that it is connected to the mains supply with the power source main switch in the
i-position.
When lit, the orange lamp indicates that the thermal protection circuit has been activated due
to higher than normal working loads that exceed the rated duty cycle. the cooling fan will
continue to run and cool the machine down. When the lamp is off the machine is again ready
to weld.
3.3 opErAtIon oF CoolIng FAn
Kemparc pulse power sources incorporate two simultaneously operating fans.
• the fan is started momentarily when the main switch is placed into position - i.
• the fan will start during welding as the machine reaches operational temperature, and
it will run for 1 to 10 minutes after the welding has stopped, depending on the welding
cycle completed.
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Kemp
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pulse 350, 450 / © Kemppi O
y / 1044