Tweco VS212 Wire Feeder - Manual (Page 33)

TRANSMIG VS 212
Manual No. 0-4949 4-5 OPERATION
4.08 Meter Hold Function
The meter hold function is enabled when DIP switch
number 1 is set to the "RIGHT" position as defined in
the table above. When this function is activated, the
meter's displays are retained for 5 seconds after the
last welding operation has ended. This provides the
time needed for the operator to remove his welding
shield and read the meters before the display goes
blank.
4.09 Operation Hours Display
The total number of arc hours that the VS 212 has
been operating can be displayed by pressing and
holding the small black button located directly above
the 4 DIP switches shown in Figure 4-7. The reading
is displayed over both meters as follows:
Art # A-07258
Tho
us
an
ds
Hun
dr
ed
s
Te
ns
Ones
Hundreths
Tenths
1 2 3
4.5 6
Figure 4-8: Displaying Operation Hours
For example, the above display would be read as:
1,234.56 hours
Note
The elapsed arc hours function is not
available in the 4T mode.
4.10 Protection And Safety Circuits
The following protection and safety circuits come
standard with this wire feeder and are designed to
protect (by disabling the wire feeder) against
unfavorable operation and/or equipment damage.
1. Undervoltage Protection: If the input voltage
drops below the specified voltage range for an
extended period of time, an electronic circuit will
activate, and the wire feeder will not operate. The
undervoltage protection circuit will automatically
deactivate when the input voltage enters an
acceptable range.
2. Overvoltage Protection: If the input voltage rises
above the specified voltage range for an extended
period of time, an electronic circuit will activate,
and the wire feeder will not operate. The
overvoltage protection circuit will automatically
deactivate when the input voltage enters an
acceptable range.
3. Input Current Protection: If the input current rises
above the specified maximum input current for
an extended period of time, the input circuit
breaker will trip, and the wire feeder will not
operate. The input circuit breaker will have to be
manually reset if it were to trip.
4. Motor Overcurrent Protection: If the drive motor
becomes locked or shorted, an electronic circuit
will activate, and the motor will not operate. If this
circuit activates, a light on the motor control
printed circuit board labeled [Fault 2] will turn on.
The motor overcurrent protection circuit will have
to be manually reset by placing the power switch
on the wire feeder in the off position for at least
60 seconds.
CAUTION
If this protection circuit activates and the
drive motor is not locked, the drive motor
is most likely shorted and will have to be
replaced (refer to Section 5.03
Troubleshooting Guide in this manual).