Selco Genesis 2200 PMC, Repair Manual

Page: 9 / 54

45
- Check that the roller groove is consistent with the diameter of
the wire you wish to use.
- Unscrew the ring nut (18) from the spindle and insert the wire
spool.
Insert also the spool pin, insert the spool, reposition the ring
nut (18) and adjust the friction screw (19).
- Release the rolls lever of the wire feeder (20), sliding the end
of the wire into the wire guide bush and, passing it over the
roller, into the torch fitting. Lock the feed support in position,
checking that the wire has entered the roller groove.
- To load the wire onto the torch, press the wire feed push-
button.
- Connect the gas hose to the rear gas hose coupling.
- Adjust the gas flow from 5 to 20 l/min.
Welding polarity change
This device permits welding of any welding wire on the market
thanks to the easy selection of the welding polarity (direct or
reverse).
Reverse polarity: the power cable from the torch (21) must be
connected to the positive pole (+) (22) of the terminal strip. The
power cable from the earth socket (23) must be connected to
the negative pole (-) (24) of the terminal strip.
Direct polarity: the power cable from the torch (25) must be
connected to the negative pole (-) (26) of the terminal strip. The
power cable from the earth socket (27) must be connected to
the positive pole (+) (28) of the terminal strip.
Before shipment, the equipment is set for use with reverse
polarity!
3 SYSTEM PRESENTATION
3.1 General
The Genesis 2200 PMC are constant current inverter power
sources developed for electrode (MMA), TIG DC (LIFT START),
Standard MIG/MAG, Pulsed MIG/MAG and Double Pulsed
MIG/MAG.
They are fully digital multiprocessor systems (data processing on
DSP and communication over CAN-BUS), capable of meeting
the various requirements of the welding world in the best pos-
sible way.
3.2 Front control panel
1 Power supply
Indicates that the equipment is connected to the mains
and is on.
2 General alarm
Indicates the possible intervention of protection devices
such as the temperature protection (consult the “Alarm
codes” section).
3 Power on
Indicates the presence of voltage on the equipment
outlet connections.
4 7-segment display
Allows the general welding machine parameters to be
displayed during start-up, settings, current and voltage
readings, while welding, and encoding of the alarms.
5 LCD display
Allows the general welding machine parameters to be
displayed during start-up, settings, current and voltage
readings, while welding, and encoding of the alarms.
Allows all the operations to be displayed instantaneously.
6 Main adjustment handle.
Allows entry to set up, the selection and the setting of
the welding parameters.
7 Processes/functions
Let you select the various system functions (welding
process, welding mode, current pulse, graphic mode,
etc.).