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7/50D Plus or 7/50D Controller 
Chapter 4: Operation 
63 
Activating and Stopping Priority Convey for a Station 
Note:  Before activating priority convey, make sure that all other stations 
using the same pump have adequate material in reserve to continue 
operation.  No material will be conveyed to these stations during 
priority convey. 
If you want the controller to fill a specific station with material immediately, you can activate 
“priority convey” for that station. When you do so, the controller temporarily dedicates the 
station’s pump to it, ignoring demands from other stations assigned to that pump. Once the 
chosen station is full, normal operation resumes. 
You can also use this feature to give one station a “head start” by conveying a few loads to it 
and then stopping the priority convey. 
No more than one station for a given pump can be in “priority convey” at once. 
To activate priority convey: 
1.  Go to the Station n Operator screen (as described on p. 61), or go to the Station n 
Setup screen. 
2.  Touch Priority Convey Activate. 
The button changes to Priority Convey Active and blinks until the station’s 
demand has been satisfied (or you stop the priority convey).The controller begins 
filling the chosen station only (after finishing any convey already in progress).  
To stop a priority convey before the station is completely full: 
1.  Touch the blinking Priority Convey Active. 
The button changes to Priority Convey Activate and stops blinking. The 
controller finishes the current convey, if any, and resumes normal operation. 
Changing the Mixture for a Remote Proportioning Valve 
A remote proportioning valve (RPV) mixes two different materials, typically virgin and 
regrind materials, during a convey cycle. If present, this valve may be set up so that you 
control the mix with a timer at the station, or it may be set up so that you control the mix with 
the controller’s touch screen. The instructions here apply only for controlling the mixture 
from the touch screen. 
The controller refers to the two materials as Material A (primary) and Material B (additive). 
The system is set up so that, if there are any inaccuracies in the proportions, the mix will 
contain more Material A and less Material B. 
To change the mixture for the remote proportioning valve: 
1.  Go to the Station n Operator screen (as described on p. 61), or go to the Station n 
Setup screen. 
2.  Touch RPV Material B. 
A keypad pops up. 
3.  Enter the desired percentage for the additive material. Use 
← to erase any mistakes. 
Use 
↵ to enter the value. 
The new setting appears under RPV Material B