7-2 Alarms

The format for all station alarms is “Station n [alarm text].” The format for all pump alarms is “Pump n [alarm text].” Any alarm that does not start with “Station” or “Pump” is a system alarm.

The following tables list all alarms alphabetically, together with possible causes. A “critical” alarm is one that causes the affected device to stop.

Note: You can also see a list of alarms and their causes in the controller’s online help. To display this information, touch the color key of statuses in the upper right-hand corner of either the “Station Status” or the “Pump Status” screen, or touch Help at any other screen. When you are finished reviewing the help, touch Return.

Station Alarms

Alarm message

Possible cause

 

Material line is blocked.

 

Pulling bag at gaylord.

 

Vacuum line is blocked.

High vacuum

Convey time is too long (time-fill station only).

Sequence valve has malfunctioned.

 

No compressed air.

 

Vacuum switch has malfunctioned.

 

Note: After you have corrected the cause of this alarm, the alarm will be

 

cleared when the controller has conveyed a full load to this station.

 

Material container is empty.

 

No compressed air to vacuum pump.

 

Material line is disconnected from material source.

 

Faulty atmospheric valve pump.

No convey

Vacuum line is disconnected from station.

Pump power is interrupted.

 

Take-off compartment is not adjusted properly.

 

Convey time is too short.

 

Faulty sensor does not detect material.

 

Note: As a stopgap measure, you can disable the “no convey” alarm for

 

this station until the problem can be remedied. See page 46.

Not assigned (Critical)

Station has not been assigned to a pump

Pump Alarms

Alarm message

Possible cause

Pump failure

Circuit breaker or overload protector has tripped.

(Critical)

Contactor has malfunctioned.

Pump fault

(Function determined by your facility.)

System Alarms

Alarm message

Possible cause

 

Low battery

Battery for the controller is defective.

 

Batter for the controller is old and drained.

 

 

Battery terminals loose/not connected.

 

Hopper Loaders with/without Sight Glasses

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Sterling Plumbing scc2 specifications Station Alarms, Pump Alarms, System Alarms