S.p.A.
ITEM TE550
Instruction manual
29/92
PRESSURE
This parameter, expressed in bar, expresses the welding pressure value. It is used only if in
the pneumatic circuit a proportional valve is present. The set value must be such that it
guarantees a proper clamping force during the welding cycle. An inadequate adjustment of
such value produces sparks between electrodes and sheet when the welding begins. This
parameter may be activated through the PROP. VALVE function in the
FEATURES MENU
.
FORGE DELAY
The FORGE DELAY parameter expresses the delay time elapsing from the welding process
beginning and the application of the forging force. It is used exclusively with pneumatic
circuits that contemplate the forging function. Such function activates the solenoid valve EV3
which permits to increase the electrode force during the welding cycle.
If the value is set to zero the FORGE DELAY function is disabled. However, the valve EV3
would be anyway activated at the same time of either the SQUEEZE 1 time or the SQUEEZE
time, if the relevant function has been activated.
This parameter may be activated through the relevant function in the
FEATURES MENU
.
FORG.PRESS.
This parameter, expressed in bar, describes the forging pressure value; It is used only if in the
pneumatic circuit a proportional valve is present. The set value must be such that it
guarantees a proper clamping force during the forging. An inadequate adjustment of such
value produces sparks between electrodes and sheet during the welding process. This
parameter may be activated through the FORGE DELAY and PROP. VALVE parameters in
the
FEATURES MENU
.
MOTOR DELAY
This parameter describes the time elapsing between the start of the welding cycle and the
activation of the motor by means of the EV3 output in the control unit. This parameter is
displayed when the SEAM WELDING MODE is ON, in the
FEATURES MENU
.
PRE-WELD
The PRE-WELD parameter indicates the duration of a current flow that can be carried out
before the welding process. This parameter is expressed by three digits since it can be set
with half-cycle precision. If this parameter is set to 0, the pre-weld will not be carried out. Pre-
weld is carried out with a current adjustment equivalent to that indicated in the PRE-POWER
parameter.
This parameter may be activated through the relevant function in the
SETUP MENU
.
PRE-POWER
The value expressed in this parameter indicates the power used for carrying the PRE-WELD
out. This parameter may be activated through the relevant function in the
SETUP MENU
.
COLD 1
The COLD 1 parameter indicates the time that elapses from the pre-weld to the weld.
If the pre-weld is deactivated (that is, when PRE-WELD time = 0), this cooling time is not
carried out.
This parameter may be activated through the relevant function in the
SETUP MENU
.
