7 kVA Honda 200A Three Phase DC Arc Welder Generator Manual

29/11/19 C1UN7020_EN
ENGLISH
ENGLISH
M
40.2.1
TROUBLESHOOTING
REV.0-10/20
Problem Possible cause Solution
Alternator do not delfenergise 1) Insufcientresidualvoltage
2) Connection break
3) Three-phase diode bridge is broken
4) Insufcientspeed
5) Windings breakdown
6) Poor contact of the brushes
1) Excite the rotor using a battery
2) Reset the connection
3) Replace three-phase diode bridge
4) Adjust speed regulator of the drive motor
5) Check winding resistances and replace damaged part
6) Clean and check the slipring
Low no-load voltage 1) Low revolving speed
2) Poor contact of the brushes
3) Windings breakdown
4) Three-phase diode bridge is broken
1) Adjust speed regulator of the drive motor
2) Clean and check or replace the slipring
3) Check winding resistances and replace damaged part
4) Replace three-phase diode bridge
No current available when used
as welder but the machine works
properly as alternator
1) Intervention of thermal protection
2)Recticationcircuitisbroken
3) Reactance/compound is broken
4)Weldingrectierisbroken
5) Breakdown of the welding winding
1) Wait the automatic cooldown of the motor
2)Checkandreplacetherecticationcircuit
3) Check and replace the reactance/compound
4)Replacetheweldingrectier
5) Check the resistance and replace the broken part
Unstable current as welder but
the machine works properly as
alternator
1) Current or polarity is not correct for the type of electrode
2)Weldingrectierisbroken
1) Check current setting and polarity of the electrode
2)Checkandreplacetheweldingrectier
Unstable voltage 1) Rotating mass too small
2) Uneven speed
3) Poor contact on collector
1) Increasetheywheelofthedrivemotor
2) Check and repair speed regulator of the drive motor
3) Check and clean the slipring and brushes
Noisy Sound 1) Defective mechanical coupling
2) Short circuit in one of the windings or on the load
3) The bearing is broken
1) Check and modify the alignment
2) Check windings and load
3) Replace the broken bearing