Hi!
Have several Tac 50, ThyssenKrupp Dongyang Elevator, with CPUA board.
Sometimes the following errors occur (on different elevators):

1. -1854 - LU/LD stuck active during run
(LVU/LVD).

It happens once a week, sometimes more often. As a rule, the elevator is on the first floor. I switch to Inspection, to Normal - all works fine one week more.
Tried to swap the sensors (LVU,LVD,DZ1,DZ2) with other elevator.
Is there any solution to solve this problem? May be some EMI problems?

2. - 1859 - discrete SPI hardware failure
-1851 - hardware watchdog
Happens once a month. What is that? =(


I have "TK-50 Commissioning Manual Rev 1.3" Dating April 1, 2010. Can someone send me a newer one, please?