Lincoln Electric INVERTEC IM10051 - Manual (Page 18)

B-3 OPERATION B-3
INVERTEC® V311-T AC/DC TIG
The Invertec® V311-T AC/DC User interface con-
sists of the following (Refer to Figure B.3):
1. DYNAMIC LCD DISPLAY
2. STATUS LED LIGHTS
a. V R D O n ( V o l t a g e R e d u c t i o n D e v i c e )
Status Light- Voltage reduction device can
be enabled from the set-up menu so that an
output voltage limit can be set that reduces
the output open circuit voltage to a safer level
w h e n n o t w e l d i n g . I f e n a b l e d w h e n t h e
machine is sitting idle in stick mode the
Green VRD on light will illuminate to indicate
the voltage is reduced below the set limit. If
the VRD device is not enabled (factory
default) from the set up menu or while weld-
ing the red VRD off light will illuminate to
show that output voltage is present above the
limit.
Note: The green VRD on light will illuminate in TIG
mode until the output is triggered even when VRD
is disabled. Also note that enabling VRD to reduce
the output voltage can make striking a stick elec-
trode more difficult.
b. General Alarm – Yellow LED which is lit when
faults exist with the power source or optional
cooler, such as over temperature, coolant
blockage, etc.
c. Output On (No VRD) – This status light will illu-
minate red whenever the output in electrically
hot and the voltage level is above the VRD
threshold value.
3. A seven segment LED display (H)
4. PUSH BUTTON/ROTARY ENCODER
5. MODE PUSH BUTTONS (A-D)
a. Weld Mode (A)
b. Trigger Mode (B)
c. TIG Pulse Mode (C)
d. Memory Location Select (D)
6. PUSH BUTTONS (E, F)
e. Memory Save (E)
f. Memory Recall (F)
USER INTERFACE OVERVIEW AND OPERATION:
1
3
4
5
2
6
A B C D
E F
V 3 1 1 -T
AC/DC IINN VV EE RR TT EE CC
R
FIGURE B.3