Purging a Valve
1. Select Purge > Valve X > Closed (by pressing the Enter key). “Closed” flashes, indicating that the valve is
closed.
2. Open the valve by pressing the Enter key. “Open” flashes, indicating that the valve is open.
3. When the valve is open, material flows to purge the valve (if a cleaning agent is present) and the respective
Channel LED on the front of the PICO controller illuminates.
4. Close the cleaned valve by pressing the Enter or ESC key; “Closed” flashes, indicating that the valve is closed.
Changing the Temperature Setting Range
By default, the PICO controller allows a Temperature setting range of 0–100 °C. With this setting, output pin 23
(OUT_ANALOG) works in the range of 0–5 V. If your application requires a Temperature setting above 100 °C, follow
this procedure to change the Temperature setting range to 0–200 °C.
Change the Temperate setting range only if you actually intend to heat above 100 °C. Changing the setting range
reduces the precision of the temperature specification by half because the same D/A converter will be required to
convert 10 V.
CAUTION
1. Load the “temperatur200C.txt” file from the supplied SD card into the PICO controller using the
Down-/Upload menu option. (Refer “To transfer a program file to the PICO controller:” on page 39 if needed.)
The Temperature setting range is now 0–200°C.
2. From the Main Menu on the PICO controller, select Process Data > System Data/Temp. Output.
3. After entering the password, select 0–10V to convert the output to 0–10 V.
Now the PICO controller can specify temperatures above 100 °C on the PICO
Toµch
controller. To return the
Temperature setting to a maximum of 100 °C, load the “temperatur100C.txt” file from the supplied SD card and
reset the System Data/Temp. Output voltage 0–5V.
NOTE:
Performing a Factory Reset returns the System Data/Temp.Output to 0–5V.
PICO Controller 2+2-XCH-V3
45
www.nordsonefd.com [email protected]
+1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.