FU / CCI - ERROR 63

Alex,

From the service manual:

FU / CCI - ERROR 63

Error: Overcurrent.

Consequences:  

FREQUENCY CONVERTER switches off independently.

The rotor freewheels, coasting.

No further user operation is possible.

Cooling continues until nominal value is attained.

Cause:  

·      Also see General Notice

·      Short circuit in motor.

·      Motor impedance is too low.

·      Control Cable is defective.

·      Supply Board or Frequency Converter is defective.

Reset: 

Perform a Mains Reset.

Switch mains switch to ON after 2 min.

General Notice for FU / CCI - ERROR 61 to FU / CCI – ERROR 83:

Frequency converter, FU / CCI display Error code 61 to 69 for ROTINA, ROTANTA, ROTO-SILENTA, 71 to 83 for ROTIXA

The microprocessor of the FREQUENCY CONVERTER independently manages the errors which have oControl Cableurred. If an error oControl Cableurs, the LED on the FREQUENCY CONVERTER flashes:

·      Red LED For ROTINA, ROTANTA, ROTO-SILENTA

·      Yellow LED For ROTIXA

CONTROL PANEL receives the information via control cables leading from FREQUENCY CONVERTER to SUPPLY BOARD and from SUPPLY BOARD to CONTROL PANEL. If an error message comes from CONTROL PANEL, and LED of FREQUENCY CONVERTER does not flash, then

·      CONTROL CABLE from FREQUENCY CONVERTER to SUPPLY BOARD is defective

 ·      CONTROL CABLE from SUPPLY BOARD to CONTROL PANEL is defective

·      SUPPLY BOARD itself is defective.

 ·      Measurement on plug X7 / SUPPLY BOARD on pin 4 and pin 5. (Plug X7 plugged into SUPPLY BOARD, and plug X5 plugged into FREQUENCY CONVERTER).

No error            0 V

Error                 5 V.

Best guess, most likely the supply board or frequency converter, if it keeps coming back after the power off/on reset. There's a 5-pin connector/terminal block on the frequency converter - you should have 24V on pins 47 and 48 (48 is ground), going to pin 26 on the 17-pin connector/block (X5), which goes to the motor thermal breaker and back into pin 33.

The frequency converter enable signal comes from the supply board X7 plug on pins 1 and 5 (pins 25 and 28 on freq conv board plug X5. X7p5 / X5p28 are ground). I suspect a high (5V) there would show the freq conv is enabled, since a 5V on X7 pins 4 & 5 mentioned above shows the error. After a reset, X7-4/5 should be 0 and X7-1/5 should be high, or switch high when Start is pressed. If it's low (or stays low at Start), I'd guess the supply board is at fault. Otherwise it would be the freq conv board.

The motor windings are on pins U, V, W on the 11-pin connector on the freq conv board. There should be no short-circuits between any comination of those three, and they should all read nearly the same ohms.

Jeff