Miller Big Blue 700 Duo Pro DLX SF Owner's Manual page 66

Trouble
Min or max CV weld output only.
Smart Feeder is not powered, display
lights are not ON.
Smart Feeder display shows dashes
and will not power up after 60 seconds
Smart Feeder displays Cbl Err.
Smart Feeder displays PoL Err.
The welder/generator or Smart Feeder
displays Help15.
Smart Feeder weld output fails while
welding (the Smart Feeder may show
H15 or completely reset).
HLP 15 code is displayed while carbon−
arc gouging.
B. Standard Generator Power
Trouble
No generator power output at AC recept-
acles; weld output okay.
No generator power or weld output.
High output at generator power AC re-
ceptacles.
Low output at generator power AC re-
ceptacles.
OM-252624 Page 62
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Complete Parts List available at www.MillerWelds.com
Check position of Voltage/Amperage Adjust control and Process/Contactor switch.
Repair or replace remote control device.
Check that Smart Feeder is properly connected directly to weld studs and that power cables are intact.
See Section 5-9B or 5-11B.
Verify VRD is OFF if trying to connect in STICK mode. See Section 5-9B or 5-11B.
Verify contactor is ON using a connected remote when connecting Smart Feeder in remote contactor
modes. See Section 5-9B or 5-11B.
If Ac.c is shown on the voltmeter display check power cables for loose connections or uncoil/shorten pow-
er cables.
If Ac.c is not shown on the voltmeter display, ensure the power source is an SF model.
Check that power cables are more than three feet from other power cables of active welding systems.
This is a Cable Error. Check power cables for loose connections or uncoil/shorten power cables. It may
take a few seconds for the cable error to clear after making a change.
This is a Polarity Error. Ensure the positive (+) stud on the power source is connected to the electrode
stud on the Smart Feeder and the negative (−) stud on the power source is connected to the work stud
on the Smart Feeder.
Indicates that the output demand has exceeded the engine horsepower, causing the engine RPM to drop
below a specified level for a significant time. This code displays for 5 seconds before clearing on its own.
The output remains enabled when this code is active, but is reduced to prevent the engine from stalling.
Check the voltmeter display on the engine drive to see if HLP15 is displayed within 5 seconds of the weld
failure. HLP15 indicates that the power output demand of the engine has been exceeded. This can be
caused by excessive auxiliary power loads, engine wetstacking, or reduced output from an engine that
is not yet warmed up.
HLP15 indicates that the power output demand of the engine drive has been exceeded. This can be
caused by excessive auxiliary power loads, engine wetstacking, or reduced output from an engine that
is not yet warmed up. Reduce the amperage if gouging in CC mode, or reducing tip−to−work distance if
gouging in CV mode.
Reset receptacle supplementary protectors. Reset GFCI receptacle.
Check fuse F1, and replace if open (see Section 8-8). Have Factory Authorized Service Agent check inte-
grated rectifiers SR1 and SR2, resistor R3, and capacitor C6.
Disconnect equipment from generator power receptacles during start-up.
Check fuses F1 and F2, and replace if open (see Section 8-8). Have Factory Authorized Service Agent
check integrated rectifiers SR1 and SR2, capacitor C6, and the rotor.
Reset supplementary protector CB4. Have Factory Authorized Service Agent check integrated rectifier
SR1 .
Have Factory Authorized Service Agent check brushes and slip rings, and field excitation circuit.
Check engine speed, and adjust if necessary.
Have Factory Authorized Service Agent adjust generator power field current resistor R3.
Check engine speed, and adjust if necessary.
Check fuse F1, and replace if open (see Section 8-8). Have Factory Authorized Service Agent check inte-
grated rectifier SR2, resistor R3, and capacitor C6.
Have Factory Authorized Service Agent check brushes and slip rings.
Remedy
Remedy