68-92 PN-0908073 Rev. 11
PS 164-2
THE ART OF WELDING
Designation Reference
Memory card (16 programs) 00629119
Source 160 A 2017640200
Ground cable 64599801
Flowmeter Argon France 75501002
Flowmeter Argon Export 71701418
Flowmeter Argon/Hydrogen 71701421
Cooling liquid 75110071
Fuses 17000004
6. 5. 3. Circuit description
◊ Remark
The following information refers to the wiring
scheme of the PS 164-2 (Ref. 1700XXXX) and the
remote control pendant (Ref. 1436XXXX) as well as
to the sequencer card (Ref. 21700633), the synop-
tic card (Ref. 21700634), the source interface card
2021700750 and the memory circuit interface card
(Ref. 21700680).
The signals are described by an abbreviated name
corresponding to their function. It is useful to recog-
nise that a signal preceded by a bar "/"signifi es that
it is active at the low level (0 V).
The numbers inscribed at the bottom right of the
synoptic blocks relate to the folio numbers of the cor-
responding dossiers. For example, the number 08 in
the block "Gas control" of the sequencer card corre-
sponds to folio 08 of dossier number 21700633.
◊ General presentation and wiring diagram
The functioning of the PS 164-2 is principally control-
led by 2 cards: the 21700633 sequencer card and the
21700634 synoptic card. These two cards are linked
together by a data bus I²C. This connection is built
up via the memory circuit interface card 21700680.
The sequencer card ensures the correct follow up of
weld cycles by the power source. It is linked to the
power supply, the rotation motor, the wire feed mo-
tor, and watches for the correct functioning of the
gas valves and the cooling circuit. The microchip is
also found on this card.
The synoptic card, controlled by the sequencer card,
controls the peripheral units (keyboard, indicators
and display screen), the memo card, the remote con-
trol pendant and the printer.
◊ The power switch
The power switch consists of a self holding switch K2.
When the power is turned on, the K2 switch is acti-
vated. It then remains in this state until the power
is turned off (K1 is activated). K1 is directly linked
to the emergency stop button via the synoptic card
(folio 21700634). The loss of voltage or the pressing
of the emergency stop button activates K1, which
immediately cuts off the power supply. To restart the
weld cycle you must turn on the machine again with
the power switch. This system has been designed for
safety reasons.
To Next Page
Loading...
