Auto Increment Mode Example
This example shows the memory cell settings that would be a good starting point for a dispensing fluid that changes
viscosity over time.
NOTES:
• When dispensing fluids that change viscosity, it is generally better to set AI MODE to TIME instead of COUNT.
• It is good practice to use small pressure adjustments or allow some settling time to ensure consistent deposit
amounts.
Initial memory cell settings:
• Cell 0—Enter parameters to produce the desired dot size. For example:
- DRIVERS screen: Set MODE to ON.
- DRIVERS screen: Set the ON (dispense) time to 0.150 seconds.
- DRIVERS screen: Set the OFF time to 0.1000 seconds.
- DRIVERS screen: Set the shot count (DCNT) to 1 (only one dispense cycle).
- PRESSURE screen: Set MODE to ON.
- PRESSURE screen: Set the pressure (SET) to 20 psi).
- MAIN screen: Set the trigger value (TRIG) to 3600 seconds (1 hour).
• Cell 1—Increase the SET pressure to 23 psi and increase ON time to 0.175 seconds. Set TRIG to 2700 seconds
(45 minutes).
• Cell 2—Increase the SET pressure to 27 psi and increase ON time to 0.200 seconds. Set TRIG to 1800 seconds
(30 minutes).
Set up the Auto Increment mode as follows:
1. Set AI MODE to TIME.
2. Set start (STRT) at memory cell 0.
3. Set end (END) at memory cell 2.
How the system will operate with the above settings:
NOTE:
Enable the controller to test settings.
After the first 3600 seconds elapse (when CNT equals 3600), the controller increments to memory cell 1, in which
PRES increases to 23 psi and ON time increases to 0.175 seconds.
When CNT reaches 2700, the controller increments to memory cell 2, in which PRES increases to 27 psi and ON
time increases to 0.200 seconds.
If the AI ALARM is DISABLED, the controller continues using the settings saved in memory cell 2 until the operator
selects RESET on the MAIN screen and presses the ENTER key twice.
If AI ALARM is ENABLED, the AI System Alarm screen flashes and the controller prevents any further initiate cycles
until the operator selects RESET on the MAIN screen and presses the ENTER key twice. After a reset, the controller
returns to the STRT memory cell and CNT resets to 0000.
Setup (continued)
Setting Up the Auto Increment Mode (continued)
ValveMate 9000 Controller
42
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