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7/50D Plus or 7/50D Controller Chapter 7: Troubleshooting 81
7-2 Alarms
The format for all station alarms is “Station n [alarm text],” for example, “Station 12 receiver
low level.” 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 Summary or the
Pump Summary screen, or touch Help at any other screen. When you
are finished reviewing the help. touch Return.
Station Alarms
Alarm message Possible cause
Solenoid patch cord is disconnected.
Solenoid patch cord has been cut.
Blow back output failure
(Critical)
Solenoid valve has malfunctioned.
Material line is blocked.
Vacuum line is blocked.
Convey time is too long (time-fill station only).
Sequence valve has malfunctioned.
Vacuum switch has malfunctioned.
High vacuum
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.
Local alarm’s light bulb is defective.
Patch cord for local alarm is disconnected.
Patch cord for local alarm has been cut.
Local alarm output failure
Note: As a stopgap measure, you can disable the alarm output for this
station until the problem can be remedied. See pp. 43 and 74.
Material container is empty.
Material line is disconnected from material source.
Vacuum line is disconnected from station.
Take-off compartment is not adjusted properly.
Convey time is too short.
No convey
Note: As a stopgap measure, you can disable the “no convey” alarm for
this station until the problem can be remedied. See pp. 43 and 74.
Not assigned to a pump
(Critical)
Station has not been assigned to a pump
ArmorBlock is not installed.
ArmorBlock is not addressed properly.
ArmorBlock is defective.
Base of ArmorBlock is defective.
Not present
(Critical)
Network flat cable is not installed in base properly
Power supply is not turned on.
Power supply is not connected properly
Power supply’s incoming fuse(s) have failed.
Power supply’s output circuit breaker has tripped.
ArmorBlock is defective.
Base of ArmorBlock is defective.
Output power failure
(Critical)
Power flat cable for network is not installed in ArmorBlock base properly