Machine-Side Hopper Loaders
6.4. Setting the purge time (optional)
To set the purge time, press and hold the
&The purge time that was last selected appears in the display.
The purge time can be set at 1 to 99 seconds.
FIf no line clearing valve has been installed, enter “0".
1. Turn the hopper loader off.
2.Disable the conveying cycle by disconnecting the dump valve sensor from the controller. With the dump valve sensor disabled, no demand will be indicated, and the conveying cycle will not start.
3.Turn the hopper loader on.
4.Enter a conveying time setting. (See Section 6.3. on page
5.Enter a purge time. This is done by pressing (and holding) the
6.Reconnect the dump valve sensor. Conveying should start.
7.Verify both the load time and purge time settings. This can be done by observing the conveying cycle. When the loader motor starts, it will convey material for the time entered. After this time expires, the motor stays on and the line clearing valve is activated. At this time, the conveying line will be “purged” clean of material. When the settings are correct, the load time is just long enough to pull the desired amount of material into the conveying line and the purge time is just long enough to clean out the line. Once both of these functions are complete, the material level in the hopper should be at the material inlet level, but not above. If this is not the case readjust the settings by repeating steps
NOTE: To decrease the load time and purge settings, it is necessary to cycle the time setting past 99 and then to the desired setting. There is no “down” button.
8. Once the settings are optimized, the loader is ready for operation.