Installation - ESAB A6 GMD Service Manual

INSTALLATION

1. For dimensions and settings, see Dimensions on page 13.
2. Connection, see page 16
Check that the necessary power supplies, of the correct voltage, are available.
When using a power source of one of the types LAE 800 - - 1000 - - 1250 - - 1600,
S
connected for 42 V control voltage, the necessary power can be obtained from the
standard automatic welding machine - - see terminal PEG1.
When suitable voltage is unavailable or when an LAH 500- - 630 42 V power source
S
is used, there must always be installed a 42 V intermediary transformer for the volt-
age supply to the A6 GMD (see "Accessories" section).
3. See page 6 for details of the controls.
Commissioning of the joint tracking equipment
WARNING!
N.B. When the sensor is to be exchanged, the joint tracking equipment (ordering no
416 066- -880) must be adapted to the supplied sensor (ordering no. 416 688- - 880).
N.B. In case the adaptation does not take place on installation, the joint tracking
function can be seriously impaired and mechanical damages may come about on the
control and contact devices through collission with the workpiece.
Trimming of the sensor voltage
1. Dismount the front panel of the control unit.
2. In case more space is needed for measuring, the regulator boards can be removed.
3. Connect a voltmeter to measuring point TP1- - TP0.
4. Run the vertical slide downwards by way of the remote control unit until the tip of the
sensor finger contacts a flat base and the warning lamp on the remote control unit goes
out.
5. Set the selector switch on the remote control to vertical tracking.
6. Move the finger tip aside as far as possible.
7. Check the value on the voltmeter and adjust with
potentiometer R20 to 1,8 +/- - 0.6 V, see figure below.
Don't touch potentiometer R32.
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- - 8 - -
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