TECNA
S.p.A.
ITEM
TE700 Instruction
Manual
103/128
spot welder. On the other hand, as concerns the aforementioned limits the operator may
define, through the STOP SPOTS parameter, if the spot welder should keep working or stop
when the out of limits condition occurs. In this case the control unit stops and signals the out
of limits condition when the event occurs the first time because a faulty condition is detected
either in the material that is in between the electrodes, or because the thickness is different
from specifications or because the electrical resistance is too high, etc. Carrying out the weld
in these cases could damage the piece or trigger a rejection. This is why the weld is not
carried out and the fault condition is signalled at once.
Limits on initial resistance of material
Activate this mode by setting the QUALITY-R parameter to PRE or PRE+POST.
Two new parameters will be displayed:
RMIN PRE lower limit of the resistance at the beginning of the welding.
RMAX PRE upper limit of the resistance at the beginning of the welding.
that permit setting limit values of the resistance at the beginning of the welding.
PROGRAM DATA T1
WORKING MODE IK
CONTROL MODE NO
>QUALITY-R PRE
PROGRAM DATA T1
>PAUSE 00
RMIN PRE 00100uOhm
RMAX PRE 00200uOhm
In initial resistance control mode (QUALITY-R = PRE or PRE+POST), if the value of the
resistance is higher or lower than the values set in the foregoing parameters, one of the
following messages is displayed:
MATERIAL RES [179]
UNDER MIN VALUE
WARNING ON TOOLS T1
PUSH [///] TO RESET
MATERIAL RES [180]
OVER MAX VALUE
WARNING ON TOOLS T1
PUSH [///] TO RESET
Limits on initial thickness of material
Activate this mode by setting the QUALITY-T parameter to THICK or TH+ID.
Two new parameters will be displayed:
THICK MIN lower limit of the initial thickness of the material.
THICK MAX upper limit of the initial thickness of the material.
that permit setting limit values of the thickness of the material at the beginning of the welding.
PROGRAM DATA T1
WORKING MODE IK
CONTROL MODE NO
>QUALITY-T THICK
PROGRAM DATA T1
>PAUSE 00
THICK MIN 02.00mm
THICK MAX 02.25mm
