Nordson EFD PICO Touch Operating Manual

Contents

Nordson EFD PICO Touch Operating Manual Manual pdf 19 page image

PICO Toμch Controller19www.nordsonefd.com info@nordsonefd.com 800-556-3484 Sales and service of Nordson EFD dispensing systems are available worldwide.VALVE ScreenThe VALVE screen is used to change the operating mode, enter valve dispensing parameters, and control valvepower.Button or Icon DescriptionMODE Sets the system operating mode.Mode DescriptionTimed In the Timed mode, the valve cycles according to the settings for PULSE (valve opentime), CYCLE (time between deposits), and COUNT (number of deposits) for eachvalve initiate signal.Continuous In the Continuous mode, the valve cycles according to the settings for PULSE (valveopen time) and CYCLE (time between deposits) for as long as the valve initiate signalis active, ignoring any setting for COUNT (number of deposits).NOTE: If the system is latched on to a signal in the Continuous mode, you cannotchange screens.External In the External mode, the controller operates as a slave to an input signal and thus nolonger generates the timing signals required to drive the valve. This mode is typicallyused with a device such as the PICO 2+2-XCH-V3 controller for pattern generation.NOTE: This selection is available only when SHOW VALVE EXTERNAL is toggledON via the SYSTEM screen. Refer to SHOW VALVE EXTERNAL under "SYSTEMScreens" on page 26.CAUTIONBecause the controller does not generate timing signals in the external mode, takecare to not exceed the maximum operating parameters of the connected valve. Inaddition, the time setting of any external signal used to drive the valve must begreater than the RAMP OPEN profile time setting (refer to "WAVE PROFILE Screen"on page 22). Exceeding timing and valve operational parameters can result inoverall loss of performance.PULSE Sets how long the valve opens (in milliseconds).Default: 10 (ms)Range: Depends on the open profile time and the type of valve being used; as low as 100 μspossibleCYCLE Sets the amount of time between deposits (in milliseconds).Default: 30 (ms)Range: 2 (ms) to 9.9999 (s) typical (minimum setting depends on open and close profile times)Continued on next page