OM0240
|
Rev 6 December
/2019
Page 10 of 34
NuAire, Inc.
|
2100 Fernbrook Lane
|
Plymouth, MN 55447
|
U.S.A
|
ph: 763.553.1270
|
fx: 763.553.0459
|
tf: 800.328.3352
Error / Message No.
Cause
Solution
05
Locking micro
contact error
One of the micro contacts is
damaged or defective
The connections of one of the
micro contacts is faulty
Check the operation of the micro contacts, the change if
they are faulty.
Check the hook-ups.
06
Contactor not open
The power contactor is closed
when it should be open at the
startup of the centrifuge.
The power contactor does not work anymore and it is
stuck: Change the power contactor.
The connections of the auxiliary contact are faulty: Check
the contacts at the terminals of the auxiliary contact.
07
Contactor not closed The power contactor is open
when it should be closed.
The power contactor does not work anymore: Change the
power contactor.
The micro contact 2 is released
after the closure of the lid.
Check the state and operation of micro contact No. 2, and
change it if necessary.
The contactor is not controlled.
Check the connections of the contactor coil.
08
Safety lid error
At the time of the safety self-
test at the start of the cycle, the
lid half-opened
The tachometer board is defective: Change the board.
The connections of this board are faulty:
Check the connections.
The locked lid position detector is released just after the
startup of the machine: Check the operation of the sensor.
09
No tachometer
signal at startup
No speed measurement in the
5s after startup of the
centrifuge
The speed sensor is defective: Change Speed sensor.
The tachometer board is defective: Change the board.
The connections of this board are faulty: Check the
connections.
10
Loss of tachometer
signal
Tachometer signal is lost in the
course of rotation
The connections of these parts are faulty: Check the
connection of the cables on the tachometer board, and to
the entry of the Control Center.
The speed sensor is defective: change the tachometer
sensor
The tachometer board/speedometer is defective: Change
the tachometer board
Unit will be locked for 30 minutes. Acknowledge
error and after 30 minutes lid will be able to be
opened and run normally again.
11
Bad tachometer
signal
The speed signal is not correct
The speed sensor connections or of the tachometer board
is defective: Check the hook-ups.
The speed sensor is defective: change the tachometer
sensor
The tachometer board/speedometer is defective: Change
the tachometer board
One or more of the magnets of the tachometer disc have
been lost: Check for the presence of 6 magnets. Change
the tachometer disc if it is defective.
12
Overspeed
The measured speed exceeds
the maximum allowable speed
for the rotor used.
Major problem centrifuge shutdown.
An expert appraisal is required by an authorized
technician.
13
I²C Bus
accelerometer
Communication fault with the
accelerometer board
The speed sensor connections or of the tachometer board
is defective: Check the hook-ups.
The speed sensor is defective: change the tachometer
sensor.
The tachometer board/speedometer is defective: Change
the tachometer board
14
Temperature
measurement I²C-
bus
Communication fault with the
temperature measurement level
Check that the 2 connectors of the Control Center are
properly connected to the machine.
Microcontroller board faulty: Change the Control Center.
