Operating instructions

MAINTENANCE
31 Dec 13 5-33
DE-7200VFDCentrifuge
ALARM AND FAULT MESSAGES
Cause Corrective Action
F7022 - Electrical Enclosure High Temperature Fault and Shutdown
Control cabinet interior temperature has
exceeded alarm setpoint
Check status/operation of air conditioner; repair or
replace if defective.
Reduce load by decreasing bowl, conveyor
differential speed, and/or pump feed rate.
Interior temperature of control cabinet
too high, causing shutdown
Check that air conditioner is operating; repair or
replace, as indicated. Inspect cabinet interior, and
remove cause of high temperature, if any.
Re-start centrifuge after removing cause of high
temperature.
F7031 - Enclosure Temperature Sensor Error
Control cabinet interior temperature
sensor not functioning
Check sensor and connection. Correct any wiring
defects, and replace sensor if defective.
F8001 - Emergency Stop Switch Activated, Shutdown
EMERGENCY STOP initiated Remove cause for emergency stop, pull out
EMERGENCY STOP, and then re-start centrifuge.
F8002 - Emergency Stop Switch or Belt Guard Sensor Trip
EMERGENCY STOP initiated or belt
guard removed or not secure
Check and secure belt guard, pull out EMERGENCY
STOP, and then re-start centrifuge.
F8003 - High Vibration Fault and Shutdown, Correct Problem and Press Reset Button
Rotating assembly unbalanced or
mechanical looseness
Rotating assembly overloaded or clogged, bearing
failure, conveyor wear, or loose pillow block bolts
producing out-of-balance condition. Remove cause
of excessive vibration and re-start centrifuge.
F8004 - High Vibration Switch or Bowl Cover Sensor Trip
Case cover not secure Check and secure cover, and re-start centrifuge.
Rotating assembly unbalanced or
mechanical looseness
Rotating assembly overloaded or clogged, bearing
failure, conveyor wear, or loose pillow block bolts
producing out-of-balance condition. Remove cause
of excessive vibration and re-start centrifuge.
F9010 - Control Program Downloaded from Memory Card to Controller
Re-loading of PLC program from
memory card completed
Start centrifuge, and resume operation.
F9011 - Controller Internal Battery Low, Replace
PLC battery low Replace battery.