Amada 1000ADP, Operation Manual

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CHAPTER 5: MAINTENANCE
125ADP/300ADP/1000ADP DUAL PULSE RESISTANCE WELDING POWER SUPPLY
5-2 990-922
Problem Cause (in order of probability) Problem Cause (in order of probability)
Insufficient
Weld
Nugget
1. Insufficient energy setting
1. Wrong electrode material/ tip shape
1. Worn/mushroomed electrodes
2. Excessively long pulse time setting
2. Incorrect weld head polarity
2. Contaminated weld piece surface/
plating
2. Excessive weld head force
3. Insufficient weld head force
3. Contaminated electrode surface
3. Incompatible weld piece projection
design
3. Slow weld head follow-up
4. Incompatible weld piece materials
4. No cover gas on weld piece
Metal
Expulsion
1. Excessive current/energy setting
1. Insufficient weld head force
1. Slow weld head follow-up
1. Incompatible weld piece projection
design
2. Contaminated weld piece surface/ plating
2. Incompatible weld piece materials
2. Contaminated electrode surface
2. Wrong electrode tip shape
3. No cover gas on weld piece
4. Excessively short weld time set at
125DP/300DP
Weld Piece
Over-
heating
1. Excessive energy setting
2. Insufficient weld head force
3. Incompatible weld piece materials
3. Wrong electrode material/tip shape
4. Contaminated electrode surface
Weld Piece
Discoloration
1. No cover gas on weld piece
2. Excessive energy setting
3. Insufficient weld head force
3. Contaminated weld piece surface/ plating
4. Wrong electrode material/tip shape
4. Contaminated electrode surface
Error Messages
The power Supply displays the following error messages in the bottom line of the display. To clear
these error codes, press either the
RUN
or
CLEAR
buttons. If the error has gone away, the message will
then be removed. If the error is still present, the message will remain on the display.
Error Number Error Name Description Troubleshooting steps
1
Capacitor Discharge
timeout
The energy setting in the weld
schedule was reduced, or the
schedule number was changed to a
schedule with a lower energy
setting. The unit did not reach this
new, lower energy value within 15
seconds.
1) Turn off the unit and
wait 30 seconds. Turn
on the unit and see if
the error disappears.
2) If the error persists,
contact Amada Miyachi
America for service.