User`s guide

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 EFD
®
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 EFD
®
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.
18
www.nordsonefd.com [e-mail] USA & Canada 800-556-3484 Europe [phone] Asia [phone]
Sales and service of Nordson EFD dispensing systems are available worldwide.
EFD
®
TT User's Guide
Version 1.2