PICO Toµch Controller
22 www.nordsonefd.com info@nordsonefd.com 800-556-3484 Sales and service of Nordson EFD dispensing systems are available worldwide.
WAVE PROFILE Screen
The valve actuation signal, known as ramp, can be illustrated as a wave pattern. The rise and fall of the actuation
signal, shown as a rise and fall in the wave pattern, affects the material deposit. The Toµch controller can create
a ramp prole for both the valve open (fall) and valve close (rise) signals based on settings entered on the RAMP
screen.
Button Description
CLOSE (1, 2, 3, 4,
5, or RAMP)
Sets how fast the valve actuation signal rises. When RAMP is selected, the system creates a CLOSE prole
based on the settings entered on the RAMP screen. Refer to "Adjusting the Wave Prole" on page 34 for
more information.
OPEN (1, 2, 3, 4,
5, or RAMP)
Sets how fast the valve actuation signal falls. When RAMP is selected, the system creates an OPEN prole
based on the settings entered on the RAMP screen. Refer to "Adjusting the Wave Prole" on page 34 for
more information.
NOTE: CLOSE 1-5 and OPEN 1-5 are factory disabled (locked out). Obtain assistance from EFD Technical Services to change
these settings.
RAMP Screen
Button Description
CLOSE VOLTS Sets the voltage to close the valve. The higher the voltage, the greater the sealing force applied.
STROKE Sets the voltage for each initiate cycle. For example, a CLOSE VOLTS setting of 120V and a STROKE
setting of 50% means that when the valve actuates, the voltage changes from 120V to 60V and then back
to 120V, as shown by the wave prole RAMP GRAPH, which you can view by pressing PREVIEW.
NOTE: To ensure that the valve operates within its safe operating limits, the controller may automatically adjust the CLOSE
VOLTS and STROKE settings depending on the type of valve connected.
OPEN Sets how fast the valve opens. The range is valve-dependent, but typically 200–500 µs.
CLOSE Sets how fast the valve closes. The range is valve-dependent, but typically 200–2,000 µs.
PREVIEW Opens the RAMP GRAPH screen, which displays a visual representation of the wave prole based on the
settings entered for OPEN and CLOSE on the RAMP screen.
NOTE: The PREVIEW screen shows a wave prole only for the CLOSE: RAMP and OPEN: RAMP proles.
It does not provide a wave prole for any custom proles (CLOSE 1-5 and OPEN 1-5).
To Next Page
Loading...
Need help?
General
