S.p.A.
ITEM TE550
Instruction manual
CHAPTER 10 -
DESCRIPTION OF THE INTERFACE OUTPUTS
10.1 -
WELD ERROR (WRONG)
The WRONG signal identifies a wrong weld which is out of the limits set conforming to the
table shown below.
The output, which is an opto-electronic contact, closes at the beginning of the hold time and
remains closed until the end of the hold time (if the cycle start signal had already been
deactivated), as long as the start button is held down or, if present, until the end of the pause
time.
In those cases in which an error message appears on the control unit, the 'wrong' signal
remains high until the error is cleared on the display through the CLEAR
key or through
the ERROR RESET input (when additional card 50200 is installed).
In WORKING MODE – FIX, the output is activated by the current or degrees limits,
conforming to the setting of parameter CONTROL MODE.
In CONTROL MODE = NO (deactivated), the error output is never activated.
In WORKING MODE – IK, the output is activated by the current or degrees limits, conforming
to the setting of parameter CONTROL MODE and by the omission of the current signal.
In CONTROL MODE = NO (deactivated) the error output is activated only by the omission of
the current signal.
In WORKING MODE – ENE, the output is activated by the current or degrees limits, by the
minimum or maximum weld time, by the omission of the voltage signal or by the exceeding of
the voltage signal (out of scale).
In CONTROL MODE = NO (deactivated), the error output is activated by the minimum or
maximum weld time, by the omission of the voltage signal or by the exceeding of the voltage
signal (out of scale).
PARTICULAR FUNCTIONING OF THE WRONG WITH PRESSURE SENSOR
When an activated pressure sensor is present (where the INGR.VE/PRE parameter is set to
PRE) and the pressure measured during the squeeze phase results out of the limits set in
program data, should the start cycle signal be removed, then WRONG signal is activated and
an error message is displayed on the control unit.
For further information, please, check the paragraph FUNCTIONING WITH THE PRESSURE
SENSOR.
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