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, EC : error cause, ES : error consequence, ER : error remedy, M : measurements, ECR : error-code reset
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FU / CCI - ERROR 67
EC Only centrifuges with 115 V.
Overtemperature in the motor. The cable “overtemperature” in the
motor has high impedance.
ER
• Overtemperature switch opens because of overtemperature in the
motor
• CC is defective.
• FC is defective.
• Motor is defective
M
• Also see at FC S2.
FU / CCI - ERROR 68
EC Overtemperature in FC.
ER
• Insufficient heat abduction from FC to centrifuge housing. There is
no, or not enough, heat-conducting paste between FC and housing.
• Full-load operation and an ambient temperature > 45°C.
• CC is defective.
• FC is defective.
FU / CCI - ERROR 69
EC EEPROM in FC is defective.
ER
• CC is defective.
• FC is defective
FU / CCI - ERROR 84
EC FC recognizes excess speed.
• During rotation the speedometer pulses (6 per revolution) are
controlled by the FC.
• The FC switches the centrifuge off, when the maximum speed is
exceeded more than 500 rpm.
ER
• CCis defective.
• FC is defective.
M Also see at SB-X4 and FC-S501 (PIN 8).
FU / CCI - ERROR 85
EC “Watchdog” in FC
Discrepancy in program procedure
ER
• CCis defective.
• FC is defective.
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