Tweco HMC-410 - Manual (Page 25)

HMC-410
July 27, 2005 2-7
Art # A-04358
Figure 2-2: Front Panel Controls
NOTE
If the PSC softswitch is off, this LED will not
light. Refer to the Operation - Softswitch
Description chapter of this manual.
6. COUNT LED—When lit, the center display will
represent the number of weld sequence recycles. The
number displayed is the number of times the weld
sequence will repeat itself automatically. This number
can be 1 to 255.
7. PROG DELAY LED — When lit, the center display will
display the user selected programmable fault delay in
seconds.
NOTE
Refer to the Operation - Softswitch Description
chapter of this manual.
8. CENTER DISPLAY — This display shows numerical
information for arc hours, volts, count, and prog delay
during normal operation. It can also contain diagnostic
test information when diagnostics are performed.
9. SCHEDULE NUMBER LED — When lit, the lower display
will contain the schedule number currently active.
2.07 Front Panel Controls
Refer to Figure 2-2 for details.
1. UPPER DISPLAY — This display shows numerical
information for arc hours and time during normal
operation. It can also contain diagnostic test
information when diagnostics are performed.
2. ARC HOURS X100 LED—When lit, the upper display
will display the number of “hundreds of hours” the
control panel has controlled an arc. This number must
be added to the number of hours in the center display
for a total count of arc hours.
3. IME LED — When lit, the upper display will contain
the time, in seconds, of the selected segment.
4. ARC HOURS X1 LED — When lit, the center display
will show the number of hours the control panel has
controlled an arc. This number must be added to the
number of “hundreds of hours” in the upper display
for a total count of arc hours.
5. VOLTS LED —When lit, the center display will show
arc voltage. If the unit is being programmed, this
number represents the programmed arc voltage. If
the system is welding, this number is the actual arc
voltage.