1019572 REV. 03 89
6.2 Initial Actuator Settings
The Actuator is controlled by the Power Supply, however there are several functions that
are part of the Actuator. These include:
• Factory Air Source
• Regulated Air Pressure and Air Pressure Gauge
• Downspeed Control
• Mechanical Stop
• Actuator Position and Height above fixture (Horn travel)
• Emergency Stop (on Base, and provided as a User I/O signal for automation)
Each of these will affect the operation of the Actuator.
6.2.1 Regulated Air Pressure and Air Pressure Gauge
When factory air is present, it is delivered to the regulator located in the actuator. The
regulator knob is a push-to-lock knob to prevent undesired changes in your air pressure
settings.
Initially, set the Regulator Knob to a counter-clockwise position, which is a low pressure
setting. In the event something is incorrectly connected, a low air pressure setting will
reduce any sudden movement. A typical initial setting is approximately 20-25 psi for a
new or unproven setup.
6.2.2 Factory Air Source
Factory air must be turned on, supplying the actuator’s air pressure regulator with air
pressure. If factory air is too low (below 35 psi maintained) the actuator will not weld or
operate reliably. Factory air is also used to provide cooling air to the converter.
CAUTION
When factory air is removed from the system, or the dump valve is
activated, the Actuator may “settle” to a lower position, since it is
held up by the constant air pressure. Be sure to keep your hands and
fingers from under the Horn or other pinch points, and use a block of
wood or other soft material to block the Horn up to prevent damage
to the tooling.
CAUTION
Permanent damage to the system and possible injury can result if the
Actuator is supplied with factory air above the maximum gauge
reading of 100 psig (690kPa). Set the pressure regulator to zero
before connecting or disconnecting the factory air supply.
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