Sterling 882.00249.00 User Manual

Page of 70
 
 
2–Pump 12-Station Controllers 
Chapter 4: Operation 
37 
Station Icons 
Below the text portion of the screen, 12 station icons display the status of each station in the 
system. Each station icon contains four segments. 
Figure 3:  Station Icon Segments 
 
 
Label Description 
Segment 1 
The top segment indicates the status of the valve above each station. When 
the valve is open (control output energized), this icon highlights. In Single 
Pump mode, only one valve indicator is active at a time. In Dual Pump 
mode, up to two valve indicators can be active at a time. When this 
indicator flashes, it indicates the assignment of a priority convey
Segment 2 
The center square segment indicates the existence of a station specific alarm 
condition. The alarm is typically related to a No Convey condition, but can 
also indicate the station with a high vacuum condition. 
Segment 3 
Located on the bottom of the station icon, the lower segment indicates the 
station demand input. This is a real time indicator, displaying when the 
station demand input is active. This indicator may toggle on and off during 
the load cycle, and should be considered normal. 
Segment 4 
Segment 4 is the indicator word ON, located below the station icon. When 
ON displays, the related station loads when the system senses a demand 
signal. When ON does not display, the station demand input signal is 
ignored and the related station does not load. Segment 4 blinks with 
Segment 2 in a high vacuum condition.