FAULT FINDING
0464 523 010
- 9 -
© ESAB AB 2016
FAULT FINDING
General information
This chapter lists the most common symptoms and fault indications. Some fault indications
are displayed on the front panel by the LEDs. In case the fault indication descriptions do not
cover a fault condition it is possible to follow the fault finding instructions in section "Fault
finding without power supply" and "Fault finding with power supply".
Safety precautions
WARNING!
Work on high voltage installations must be carried out by authorized personnel
only.
WARNING!
Personnel working with the equipment must be aware of the fact that high voltage
is present in the equipment. Parts with high voltage are not accessible during
normal operation. If the cover is opened for maintence or other reason, parts
connected mains such as connection terminal may be exposed.
WARNING!
High voltage is accumulated in capacitors after power has been switched off.
Always wait at least five minutes after the power is swithced off, before starting
any work with the power source.
CAUTION!
Electrostatic discharge (ESD). Sensitive components such as integrated circuits
may be damaged by static electricty.
CAUTION!
Use an appropriate antistatic wrist strap to avoid damage to sensitive
components. Use the original packaging during transportation and storage of
sensitive components.
Required conditions
Make sure that the necessary safety precautions are done to avoid accidents and injury.
Use an approved ESD equipment to avoid damage to sensitive components.
The accuracy of measuring instruments shall be class 2.5 as a minimum, except for the
measurement of insulation resistance, where the accuracy of the instruments is not specified
but shall be taken in account for the measurment.
The clamp meter shall have an internal resistance of at least 1 Mohm.
Support equipment
•
Bit holder
•
Torx driver bits (20, 25)
•
Hex sockets bits (6,7)
•
Adjustable spanner
•
A set of shaft spanners (6, 7, 10, 13, 24)
•
Nut driver and a set of bits
