Error lists/Troubleshooting 3-17
Centrifuge 5804/5804 R and 5810/5810 R
3 Error lists / Troubleshooting
Problems with defective frequency converter, motor, brake resistors, overload, Error 6
1. Mains voltage stable at customer´s site? (Error 25 possible.)
Mains voltage generally too low or too high?
2. Room temperature too high, max. 35°C ? Direct sunlight?
3. Sufficient space for air ventilation at sides of device?
Minimum 15 cm at both sides and 10 cm at rear side.
4. Do the brake resistors still have approx. 150 Ohm each?
5. Is the motor fan working (only present in refrigerated centrifuges)?
6. Service Manual, "Service function, Program 13, Viewing the error table".
7. Service Manual, "Customer service program 7, Last error report".
8. Turn motor by hand and listen to ball bearing noise.
A sluggish or loud motor may result in higher current, thus damaging the frequency con-
verter and/or the brake resistors!
9. Service Manual, "Customer service program 2, FC current during a run".
xx– Phase current in phase line to motor
230 V:Typical value after start is xx = 42 (4.2 A)
and after reaching maximum speed xx = 24 (2.4 A).
120 V:Typical value after start is xx = 84 (8.4 A)
and after reaching maximum speed xx = 48 (4.8 A).
10. With Error 6: Service Manual, Customer service program 9, current error indication
(selectable via cursor key only directly after error)
xx– error number e.g. 06
zz – 0 =no error message7=overcurrent FC
1 =undervoltage8=interference EPROM FC
2 =overvoltage10=no release
4 =overtemperature FCFA=reset by internal software or hardware
5 =overtemperature motorFF=serial interface time out
Check the non-refrigerated centrifuges 5804/5810 to see whether the foam parts in the device are still
suitable to maintain the required ventilation flow for cooling.
2:xx yyyzzzzz
9:Er xx yy zz
MSTM/0408
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