Lincoln Electric SP-250 Welding System User Manual


 
F-29
TROUBLESHOOTING & REPAIR
F-29
IDEALARC SP-250
TEST PROCEDURE
NOTE: POLARITY MUST BE
OBSERVED FOR THESE TESTS.
Test for Correct Wire Drive Motor
Armature Voltage
1. Disconnect main input power to the
machine.
2. Remove the Case Top and Side
Panels using a 5/16" nut driver.
3. Locate Plug J5 on the G2252
Control Board, or Plug J6 on the
G1992 Control Board (Code 9402
only).. See Figures F.10A and
F.10B.
FIGURE F.10A - Plug J5 Location on
G2252 PC Control Board.
WIRE DRIVE MOTOR AND TACHOMETER FEEDBACK TEST
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G2252
SP-250 CONTROL
J2
J7
J4
J5
J6
J9
J3
J8
#555
(1J5)
#539
(8J5)
#206B
(2J5)
#515B
(3J5)
#541
(9J5)
#515B
(3J5)