A002 Spark Card; P001 Panel Card - Kemppi MinarcTig Evo 200 Service Manual

Service manual MinarcTig Evo 200

Main transformer PTC and IGBT NTC monitoring circuits. It shuts down the inverter
and information is delivered to microprocessor on the P001 card.

Remote controller and TIG torch control connections. P001 card reads the signals.

3.4.3. A002 spark card


Generates voltage to spark transformer and switches it on and off. Voltage is gener-
ated from the main transformer secondary.

Trimmer R14 can be adjusted to change the voltage between 7,8-14,7kV. A002 card
(both original and spare part card) is factory adjusted and does not need to be re-
adjusted in service.

A002 card is controlled by P001 panel card.

3.4.4. P001 panel card


Microprocessor has many different operations:
o
Controls panel LEDs and 7-segment display.
o
Reads membrane switches and pulse potentiometer.
o
Reads remote controller and TIG torch control signals (via A001).
o
Controls cooling fan, gas valve, spark ignition and PFC operations.
o
Reads over and under voltage watch circuit and over temperature circuit stages.
o
Controls serial bus and saves calibrations data.

Service connector for programming devices like Datamaster 2. Panel processor can
be re-programmed via this connector.

Panel card holds most of the input and output devises to the user, like LEDs, 7-
segment display, and pulse potentiometer.

Connection to membrane panel.
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Kemppi Oy
Version 1.1.5. 29.9.2015