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7/50D Plus or 7/50D Controller Chapter 7: Troubleshooting 82
Alarm message Possible cause
Pick-up wand is not positioned properly.
Convey time is too short.
Take-off compartment is not adjusted properly.
Vacuum line has a leak.
Partial convey
Note: As a stopgap measure, you can disable the “partial convey” alarm for
this station until the problem can be remedied. See pp. 43 and 74.
Solenoid patch cord is disconnected.
Solenoid patch cord has been cut.
Purge output failure
(Critical)
Solenoid valve has failed.
Purge valve not assigned
(Critical)
Station has not been assigned to a purge valve
Conveying system has malfunctioned.
Station has been disabled at controller’s touch screen.
Station’s bypass switch is active.
Receiver low level
Note: As a stopgap measure, you can disable the “receiver low level” alarm
for this station until the problem can be remedied. See pp. 43 and 75.
Patch cord for remote proportioning valve is disconnected.
Patch cord for remote proportioning valve has been cut.
RPV material A failure
(Critical)
Solenoid A for remote proportioning valve has malfunctioned.
Patch cord for remote proportioning valve is disconnected.
Patch cord for remote proportioning valve has been cut.
RPV material B failure
(Critical)
Solenoid B for remote proportioning valve has malfunctioned.
Patch cord for sequence valve is disconnected.
Patch cord for sequence valve has been cut.
Sequence valve output failure
(Critical)
Solenoid for sequence valve has malfunctioned.
Patch cord for slide gate is disconnected.
Patch cord for slide gate has been cut.
Slide gate output failure
(Critical)
Solenoid for slide gate has failed.
Pump Alarms
Alarm message Possible cause
Patch cord for solenoid for blow back valve is disconnected.
Patch cord for solenoid for blow back valve valve has been cut.
Blow back output failure
(Critical)
Solenoid for blow-back valve has malfunctioned.
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 local alarm output
for this pump until the problem can be remedied. See pp. 47 and 48.
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.
Output power failure
(Critical)
Base of ArmorBlock is defective.