7-2. Diagnostics

The following error messages are shown on the upper and lower displays to indicate specific errors. Explanations are in the text below:

ERR

 

 

ERR

 

 

 

 

 

 

 

 

SENS

 

 

TACH

 

 

 

 

Indicates a voltage

 

Indicates a

sense error.

 

tachometer error.

ERR

MOTR

Indicates a motor error.

ERR

WFS

Indicates a wire feed speed error.

ERR

STRT

Indicates an arc start error.

ERR

STOP

Indicates an arc stop error.

ERR

FLOW

Indicates a gas flow error.

ERR

COOL

Indicates a coolant flow error.

ERR

FTP

Indicates a file transfer point error.

ERR

GND

Indicates a ground current error.

ERR

STUK

Indicates a wire stuck error.

ERR

PSF

Indicates a primary power error.

ERR SENS

The voltage sense error indicates no voltage sensing feedback signal. Check connections at feeder and welding power source. Press Jog/Purge button to clear error.

ERR TACH

The tach error occurs 2 seconds after the loss of tachometer feedback. The motor speed is regulated through the monitoring of voltage and current. Press Jog/Purge button to clear error.

ERR MOTR

The motor error indicates that the motor has been drawing too much current for too long. To remedy this, reduce the wire feed speed or the wire feeder torque load/duty cycle. Press Jog/Purge button to clear error.

ERR WFS

The wire feed speed error indicates actual wire feed speed does not match wire feed speed command. Press Jog/Purge button to clear error.

ERR STRT

The start error occurs if the user has the trigger held for more than two minutes without striking an arc, or if the user holds the trigger past the postflow phase in a timed weld. This error also occurs if the trigger is held when the feeder is powered up. The error may be cleared by releasing the trigger, and pressing the Jog/Purge button.

ERR STOP

The stop error occurs as result of obstructions in the wire feed system or a faulty wire drive system. Check wire feed and wire drive systems. Press Jog/Purge button to clear error.

ERR FLOW

The flow error indicates no gas flow to the gun. The error may be reset by reestablishing gas flow to the gun, and then pressing the Jog/Purge button.

ERR COOL

The cool error indicates no coolant flow in water flow switch option. The error may be reset by reestablishing coolant flow to the gun, and then pressing the Jog/Purge button.

ERR FTP

The file transfer error occurs if data does not transfer to the feeder correctly. Press Jog/Purge button to clear error, and transfer data to feeder again.

ERR GND

The ground current error occurs if weld current is detected in the earth ground connection. May be caused by a conductor making contact with unit chassis. Check and repair feeder weld connections. Press Jog/Purge button to clear error.

ERR STUK

The stuck error occurs if the welding wire sticks to the workpiece at the end of a weld. May be caused by poor weld conditions. The error may be cleared by cutting wire from workpiece, and pressing the Jog/ Purge button.

ERR PSF

The primary power error occurs if the primary power circuit inside the feeder is not functioning correctly. Check feeder connections. Press Jog/Purge button to clear error.

OM-228 956 Page 29

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Miller Electric 75 manual Diagnostics, Indicates a voltage Sense error