Mounting Work-Holding Fixture; Connections On The Z-Head - EFD Ultra 325TT User Manual

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2.3

MOUNTING WORK-HOLDING FIXTURE

Use the four tapped (4) M4 holes on the Y-Carriage to mount your work-holding fixtures.
It is important your work-holding fixture is mounted on the Y-carriage in a manner that it is parallel
to the X-beam. Flatness of your fixture is important because it makes programming much easier.
The Ultra TT system is 3D-capable and can be programmed to compensate for changes in Z-Height
over the work envelope with the use of the built-in height sensor. However, invoking the built-in
height sensor continuously through a dispensing program will significantly reduce throughput.
EFD offers two versions of fixture plates that can be used with the Ultra TT system. When
dispensing onto low profile parts, it may be necessary to raise the fixture plate up so that the
part(s) is within reach of the dispense valve. Refer to Section 9 (Accessories) for more information.
2.4

CONNECTIONS ON THE Z-HEAD

P1 quick-connect is connected to the 100 psi channel used for valve
actuation and thicker fluids when using an EFD barrel reservoir. Line
pressure is adjusted using the regulator marked P1 on the front
panel.
P1 pressure on the front panel should be set to 70 psi when using
any EFD air-actuated valve.
P2 quick-connect is connected into the 30 psi channel used for valve
nozzle air on dual input valves and lower viscosity fluids when using
an EFD barrel. Line pressure is adjusted by using the regulator
marked P2 on the front panel.
When using a single air input valve, the P2 channel can be used to
adjust the fluid pressure reservoir if 30 psi is sufficient. If you require
more than 30 psi of fluid pressure, in situations where higher
viscosity materials are used, use the Aux Air connection instead.
Aux Air quick-connect is usually used to supply fluid pressure. It is
connected to the E-stop circuit. Fluid pressure will drop to 0 psi
during emergency stop situations. Resetting the E-Stop switch and
initializing the machine will return fluid pressure to normal.
To regulate to the required pressure for a barrel-supplied valve for
pressures in excess of 30 psi, use EFD barrel pressure regulator kit
(P/N 1117HTT) that attaches to the Z head with special mounting
hardware and connects to Aux Air.
Ultra TT User's Guide
Version 1.2
18