Selco GENESIS 145, Руководство по ремонту

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8) DESCRIPTION OF DIAGNOSTIC INDICATIONS
For the meaning and use of the various controls, please refer to the respective user manuals; only the diagnostic indications are described
in this section.
8.1) EXTERNAL DIAGNOSTIC INDICATIONS OF GENESIS 145
The welding control logic present on board 15.14.43 and the power stage control logic present on board 15.14.44 monitor the state of
the equipment and inform the operator via the LEDs present on the front panel.
POWER SUPPLY LED (GREEN)
Indicates the on/off status of the machine. Always illuminated if the panel, and therefore the machine, is correctly supplied.
THERMAL PROTECTION LED (YELLOW)
Indicates the temperature alarm status of the equipment. Is illuminated if the internal temperatures have exceeded the threshold values for
the correct operation of the machine. If the machine has a temperature alarm, even if it is correctly supplied, it does not release the power
output. For fast cooling leave the welding machine on, in order to make use of the internal fan and thus reduce the cooling time.
8.2) GENESIS 145 INTERNAL DIAGNOSTIC INDICATIONS
8.2.1 LEDs of input filter board 15.14.243
On the input filter and welding logic board there are two red LEDs L1 and L (see page ) which indicate the presence of the -1Vdc
and +1Vdc direct current supplies respectively.
These power supplies are provided by the switching feeder.
8.2.2 LEDs of power board 15.14.244
On the power board there are two green LEDs L1 and L (see page 4) which indicate the presence of the +18Vdc and +5Vdc direct
current supplies respectively. These power supplies are provided by the switching feeder.
There is also a red LED present, diode L3 (see page 4), which is illuminated by the PWM signal. Consequently, its luminous intensity is
proportional to the output current.
ALIMENTAZIONE
(POWER SUPPLY)
ALLARME
(ALARM)
L2
L1
L1 L2
L3
15.14.243
15.14.244