TECNA TE470, Instruction Manual, Page: 47 / 52

Instruction Manual TE470/TE480
S.p.A.
CHAPTER 12 – LIST OF MESSAGES
MESSAGE PROBABLE CAUSES POSSIBLE SOLUTIONS
SUPPLY FREQUENCY
50 Hz
The control unit measured a mains
frequency of 50 Hz.
SUPPLY FREQUENCY
60 HZ
The control unit measured a mains
frequency of 60 Hz.
FAULT/MISSING
MAINS SYNCHRONISM
A "synchronism" error occurred due to
the temporary omission of the power
line reference signal or to the
presence of line interference. Power off the control unit and check
the working efficiency of the devices
that cut the supply line and check if
there is any interference.
PRESS BUTTON [+]
TO RESET DATA
The control unit data reset procedure
was activated.
To continue, press button
otherwise press any other key and
wait a few seconds.
MEMORY RESET
The control unit is entering default
values into its programs memory.
TE470 REV. 2.21
WELD CONTROL
When powered-on, the control unit
display shows the type of control unit
and software version.
SOLENOID VALVE
SHORT CIRCUITED
One of the solenoid valve outputs is
short circuited. Check the electrical connections of
the control unit. Check the solenoid
valve coils.
THERMOSTAT OR
FLOWSWITCH ERROR
The safety thermostat or flowswitch
inside the welder tripped. Check that the water flows in the
welder in the required quantity and/or
check the working efficiency of the
thermostat.
RELEASE
SAFETY
The CHK signal indicates that the
safety on the handle is activated when
it should not be. This may be due to a
malfunction or tampering. Check.
MODIFICATION CODE
0 0 0
Enter the code to be able to access
the programming or setup menus.
RELEASE
OPEN BUTTON
The OPEN signal on the handle is
active when the user exits from a
programming menu. Check the handle and the input of the
OPEN signal.
MAX SPOTS NUMBER
The weld spots counter has reached
the max limit set to replace the
electrodes. Reset the welds counter, see relative
chapter.
CLEAR COUNTER
SPOTS? [-]=YES
Buttons and were pressed to
reset the number of spots and the
control unit requests confirmation.
Press button to reset the spots
otherwise wait a few seconds.
NO SIGNAL
CURRENT ERROR
During the last welding cycle, which
has been carried out in constant
current, there was no circulation of
secondary current. Check the continuity and the correct
positioning of the current transducer.
STOP LIMIT
LOW CURRENT
A certain number of welds were
performed outside the set limits. The
last weld was performed with a
current value lower than the min set
limit. Reset the error by pressing any
button.
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