65
Tucker GmbH,
Mail / Post:
Max-Eyth-Str.1, 35394 Gießen, Germany
Stud welding unit N1500i
As of: Aug 12.2021
Manual part number: BE 1221
6.5
N1500i Weld Cycle Timing
This part explains how the inverter series controls main current and the weld gun. It
further explains what elements affect drop time. For short cycle welding, the gun
drop time and plunge time are critical components in the weld timing, so they must be
configured, understood, and used correctly to get the optimum results.
Here are the relevant settings for welding on the N1500i:
•
F31 – Drop time. Use this function to measure \ configure the drop time of the
gun. While viewing this function (that is, with F31 on the display), attempt a
weld. The gun will lift and drop, but no weld current will pass. The gun’s drop
time is measured, stored, displayed, and used in weld timing as will be
described later in this document.
•
F2 – Plunge short circuit on-time. This is the time that the weld current reinput
power on after the stud is scheduled to have hit the workpiece.
•
Front Panel Time – This is the (weld) time set on the front panel.
Here are some other definitions:
•
Main current time = Front panel time + Plunge short circuit on- time (F2.) The
main current time is the total time that weld cur- rent is delivered. See below.
Under normal conditions, critical times and events throughout the main current
time can be described as:
Fully Lifted
Stud Travel
Touching Work
Front Panel Time
Drop Time
(F31)
Plunge Short
Circuit On-
Time (F2)
Actual Weld Time
M
ai
n
c
u
rr
en
t
st
ar
t
Gu
n
C
oil
R
el
eas
ed
S
tud
Hi
t
W
o
rk
p
ie
ce
M
ai
n
C
ur
re
nt
S
top
N
ot
to
sc
al
e
