PN-0908073 Rev. 11 57-92
PS 164-2
THE ART OF WELDING
6. Servicing, maintenance and trou-
bleshooting
6. 1. Adjustments
◊ General
The expression calibration is defi ned by regulating
standards and is used when the power source has
to meet special requirements, for example Quality
Assurance or ISO 9000 quality system. Calibration
needs specifi c testing equipment and procedures: we
can perform it on special request, in your company
or in our workshop.
Following informations concern routine adjustment
that you can perform, outside these cases, as fre-
quently as you think it advisable, for example as it
is said further.
◊ Exchange of cards or the inverter unit
The 21700633 sequencer card and the 21700634
synoptic card are pre-adjusted in the factory. In case
of a standard exchange of these cards, no further
adjustments are necessary. However, further adjust-
ments are necessary in case of replacement of the
2021700750 card or the source.
◊ How to adjust?
Before carrying out a regulation check, leave the
power source switched on for approximately 15 min-
utes. This will allow the power source to reach its
normal working temperature. If this is not done, the
adjustments that you make will be altered because
of the rise in temperature during a normal cycle.
To access the cards, remove the front panel of the
power source. It will also be necessary to bypass the
short circuit security of the inverter unit. To do this,
put the switch S3/2 of the 21700633 card and the
switch S1/4 of the 21700634 synoptic card to the
CLOSED position.
After the adjustments have
been made put the switches
to the "OPEN" position, othe-
rwise the short circuit securi-
ty system of the power source
will not work properly.
Polysoude recommends regular maintenance and calibration (once
a year minimum) of the power source, either by a Polysoude techni-
cian or by a technician approved by Polysoude. During the guarantee
period the Polysoude contractual guarantee shall not apply if the
equipment has not received maintenance and calibration at least once
a year, either by a Polysoude technician or by a technician approved
by Polysoude
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