Comparc S-512P CV - Page 12

PM1395
7
WIRE SPEED CONTROL
Use this control to select wire speed within a range
selected.
Turning control in clockwise sense wire speed will
increase. The scale is calibrated in a percentage respect
max. rated output (900plg/Min).
FIGURE 4-5 Wire Speed Control
BURNBACK TIME. This control enables to operator select the amount of time the
electrode wire remains electrically hot after wire stops feeding. The correct
burnback time allows wire to burn back just freeof the weld pudle, if the burnback
time is too long , wire could burn back into contact tube. Rotating the control
clockwise increases time from 0 to 0.25 seconds. The control scale is calibrated
in percent and does not indicate actual burnback time.
0
1
2
3
4
6
5
7
8
9
10
FIGURE 4-6. BURNBACK TIME.
FIGURE 4-7 JOG BUTTON
1.- JOG BUTTON
Push and hold button to momentarilly energize feed welding wire at speed set on
wire speed control without energizing welding circuit of shielding gas valve.
GAS PURGE BUTTON.
Push and hold button to momentarilly energize gas solenoid and purge air from gun
shielding gas regulator without energizing the welding circuit.
FIGURE 4-8 PURGE BUTTON
FIGURE 4-9 TRIGGER MODE SELECTOR.
TRIGGER MODE SELECTOR.Use this control to select the desired trigger
mode.
Select always one trigger mode:
1. 2T Trigger mode: When trigger is depressed, weld starts. When
trigger is released, weld stops.
2. 4T Trigger mode: When trigger is depressed, weld starts. When
trigger is released, weld remains. After depressing and releasing
the trigger for the second time, weld stops.
TRIGGER
JOG BU T TON
PURGE
BUT TON