CP : control panel, FC : frequency converter, SB : supply board, CB : cooling board, CC : control cable, LL : lid locking, BC : braking chopper,
BR : brake resistor, MR : mains reset
16/49
N < MIN 13
Error cause Insufficient speed; the slippage of the motor is too great.
The centrifuge regulation can adjust the speed by 5% max (the
limit of adjustment).
The error is indicated if the ACTUAL speed is lower than the
NOMINAL speed minus 5%.
Error
consequence
The centrifuge slows down until the ”open the lid” release
occurs.
Further cooling until NOMINAL temperature is reached
Error remedy
• Motor is labouring (damage to bearings).
• Motor has a short-circuited coil (coil is defective).
• Loose contact in the electrical connections.
• FC is defective.
• Release signal to FC was interrupted during centrifugation.
Error code reset Open the LL.
Perform an MR.
CONTROL - ERROR 21 - 26
Error cause Internal error in CP.
Error
consequence
The centrifuge slows down until the ”open the lid” release
occurs.
Error remedy
• CP is defective.
Error code reset Perform an MR.
N > ROTOR-MAX
Error cause Error in the entered program
Error
consequence
Further operation is not possible.
Error remedy SET speed or SET RCF is higher than the permissible rotor speed or
permissible rotor RCF.
Error code reset Carry out a MAINS RESET or open the lid.
Reduce the speed or RCF in the entered program to the permissible
rotor speed or permissible rotor RCF.
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