Input Control Board - Lincoln Electric POWER WAVE S500 Service Manual

F-10
Observe Safety Guidelines detailed in the beginning of this manual.
Error Code #
331 Instantaneous Instantaneous input current limit has been exceeded. Typically indi-
Input Current Limit cates short term power overload.
334 Startup Current Input current limit was exceeded during machine power-up.
Check Failure
335 Startup Voltage Input voltage was too high or too low during machine power-up. Verify
Check Failure that the input voltage is between 200V and 650V.
336 Thermal Fault Thermostat on primary module is tripped. Typically caused by a fan
malfunction or blocked air vent. Check for proper air flow around and
through the system. Verify that the thermal circuit has not been dam-
aged or disconnected.
337 Precharge Timeout The DC bus voltage was not charged to a certain level at end of
precharge.
338 Input Power Limit The input power drawn by the machine exceeded a safe level.
339 Current Imbalance The current through the power modules is out of balance. Could indi-
Fault cate a faulty connection to a power module or a malfunctioning power
module.
341 Input Voltage The input voltage momentarily dropped out. Check connections and
Dropout verify quality of input power.
346 Transformer Transformer current too high. Typically indicates short-term power
Primary Overcurrent overload.
347 Average Input Average input current limit has been exceeded. Typically indicates
Current Limit short term power overload.
349 Bus Undervoltage The DC bus voltage dropped below the allowable limit.
Persistent errors require power to be cycled for the error to clear.
Temporary faults will go away on their own if the error condition is removed.
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely,
contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed.
Call 1-888-935-3877.
TROUBLESHOOTING AND REPAIR

INPUT CONTROL BOARD

CAUTION
POWER WAVE
Indication
® S500
F-10
Type
Persistent
Persistent
Temporary
Temporary
Persistent
Persistent
Temporary
Temporary
Persistent
Persistent
Temporary