Defect Code 50

Defect Code 50:

Storage and Call-Up of Settings not Possible:

Possible cause: Memory switch, wires

Note: Manual adjustment of all motor drives must be OK., otherwise go to defect codes 46, 47, 48, 49

Troubleshooting: Check the memory call keypad in the diagnostic program (switch 1, 2, 3 and memory LED). Are all buttons detected? If yes, renew control unit If no, remove memory switch and measure resistance at memory switch connector X 650 between Pin 6 and 5; nominal values: Button 1 = 500-600 Ohm, button 2 = 170-210 Ohm, button 3 = 60-80 Ohm, memory button = 0-1 Ohm. Are the measured values correct?

Yes: Check wires to connector X 602 and repair If necessary.

No: Renew switch