TECNA
S.p.A.
ITEM
TE700 Instruction
Manual
121/128
13.2
- SYSTEM ERRORS – INVERTER
MESSAGE
N°
CAUSE
REMEDY
INV NOT READY
WAIT RECOVERY
150
The inverter unit is not ready to weld
after, for instance, an emergency
signal drop.
Wait until the capacitor-
charging procedure is
finished. The error is
cleared automatically.
INV NOT READY
THERMOSTAT MISSING
151
Tripping of the inverter unit thermostat. Check, in the INVERTER
DIAGNOSTIC menu, the
temperature of the
dissipater of the power
semiconductors and the
status of the capacitor
charge control board.
Contact service center.
INV NOT READY
CRC EEPROM FAIL
152
An integrity error occurred to the data
stored in the inverter EEPROM. This
ensued from the calculation of the
checksum on the data present in this
memory.
Contact service center.
INV NOT READY
REMOVE START
153
Trigger signal always present at the
inverter input.
Contact service center.
INV NOT READY
FAIL IGBT DRIVER
154
Possible fault at the driver of the
power semiconductors or at the power
semiconductors.
Contact service center.
INV NOT READY
TERMOSTAT MISSING
155
The control unit warns that it is running
the procedure for charging the
capacitors bank
Check the three-phase
INV NOT READY
MISS END WELD
156
The welding finished signal was not
acknowledged.
Contact service center.
INV NOT READY
PRIMARY CURR MIS
157
The inverter was not capable of
measuring the passage of the primary
current.
Contact service center.
INV NOT READY
SEC. CURR MISS
158
The inverter was not capable of
detecting the current passage on the
secondary circuit.
Check that the secondary
circuit is closed and not
open due to insulation. Also
check the integrity of the
Rogowsky sensor and its
wiring to the inverter unit.
INV NOT READY
SECONDARY V MISS
159
The inverter was not capable of
detecting the presence of the voltage
electrodes.
Check the integrity of the
connections relevant to the
voltage to the electrodes.
INV NOT READY
DIODE THERMAL HIGH
160
The thermal overload, which protects
the diodes of the secondary rectifier,
tripped.
Wait until routine conditions
are restored without turning
off the spot welder.
Decrease the number of
cycles per minute that the
machine must carry out.
INV NOT READY
TRANSFO THERMAL HIGH
161
The thermal overload, which protects
the primary of the welding transformer,
tripped.
Wait until routine conditions
are restored without turning
off the spot welder.
Decrease the number of
cycles per minute that the
machine must carry out.