5. TROUBLESHOOTING AND SERVICE
Page 32
Description/Symptom Major Causes Action(s)
94
Rotation detection error occurred
during acceleration
(the rotation speed does not increase)
Improper guard bowl placement Place the guard bowl properly.
A run is started without the bowl lid put on
Put the bowl lid on the guard bowl and lock
Poor connector contact
Contact Sakura Technical Support or distributor.
Controller board failure
Faulty motor, motor driver or wiring
95
Rotation detection error occurred
during constant rotation
(the motor speed deviated ±100rpm
from the set value)
Place the guard bowl properly
Place the guard bowl properly.
Poor connector contact
Technical Support or distributor.
Controller board failure
Faulty motor, motor driver or wiring
96
Rotation detection error occurred
during deceleration
(the rotation speed does not decrease
during deceleration)
Improper guard bowl placement Place the guard bowl properly.
Poor connector contact
Place the guard bowl properly. Contact Sakura
Technical Support or distributor.
Controller board failure
Faulty motor, motor driver or wiring
97
Motor error
(the motor’s alarm function was
triggered)
Temperature error
Turn the instrument power off. Operate the
instrument again in 30 minutes. If the same error
occurs, contact Sakura Technical Support or
distributor.
Locked motor
Overload
Faulty motor, motor driver or wiring
Contact Sakura Technical Support or distributor.
Controller board failure
Controller board failure
bAL Balance error
Specimen chambers are not properly arranged in
the rotor.
Always arrange the specimen chambers
symmetrically.
Specimen volume in each specimen chamber is not
even.
Fill the specimen chambers evenly.
Eccentricity of motor shaft and/or spindle
Contact Sakura Technical Support or distributor.
Distortion of guard bowl and/or rotor
Improperly adjusted balance sensor
Rotation mechanism failure
Fluid is accumulated in the guard bowl (when paper
Drain the guard bowl of accumulated fluid.
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