Hermle Z 306 Service Manual page 45

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rotor no
FALSE
© Hermle Labortechnik GmbH
Communication with
converter disturbed during
(Position request not understood at the
stop)
Short circuit in the frequency converter
Under voltage frequency converter
Over voltage frequency converter
Over temperature frequency converter
Over temperature motor
Over current frequency converter
Timeout between control unit and
frequency converter
Other error frequency converter
Overspeed
Timeout at control unit through the
RS232 interface
Rotor is not allowed in this centrifuge
No rotor detected
The rotor, which is stored in the
program, does not match with the
inserted rotor.
Service Manual Z 306
TROUBLE SHOOTING
frequency At revision no.1 it could be, that the frequency
stop relay is defective, cable break, plug is loosen
(between control board to frequency converter),
frequency converter is defective, control is
defective
Frequency converter defective, motor defective
Brief power failure, At revision no.1 it could be,
that the frequency relay is defective, cable
break, plug is loosen (between control board to
frequency converter)
Break resistant is defective, the rotor is braked
to strong
Motor runs hard, ventilation is defective,
frequency converter is not cooled enough
Motor runs hard, ventilation is defective
Frequency converter is defective, motor is
defective
Software of the unit has a black out
Summary of very specific error, which should
normally not occur.
(No release, internal timing error, system error,
reset by watch dog, start a trial with direction of
rotation error, program memory CRC error)
Transmission error, firmware error, frequency
converter us defective.
RS232 connection is interrupted.
The number of the inserted rotor does not exist
in the data record of the software.
It was no rotor installed. Transponder in the
rotor is defective or missing, antenna defective,
cable break, plug is loosen, control board
defective. In rare cases a transponder-antenna
combination can cause a reduce range, that a
conversation can't occur.
There was chosen a program, in which a
certain rotor is stored, but the inserted rotor is
another one.
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