hi
The fault accour was B1A.When we reset the elevator control pannel it operated
normally for a while and after it again show the fault B1A and elevotor stops.
We check out the encoder the encoder is not working properly and we replace the encoder card
and checking out that there is an IC named A7800A and Lm78 was faulty.
we replace the card with new one and working on the faulty card to be repaired soon as possible.
