Having trouble with an ECI 2000 stalling after opening about two feet. Doors stall and after about ten seconds they complete an open cycle.

I have this issue at two landings with heavy doors. I have a heavy door input and it is active when at those two floors. I have been through all of the parameters, speeds and currents especially. Speeds have been reduced and currents increased.

Hoistway doors are mechanically free. I replaced the micro and power boards, did not fix my problem. I pickup an undervoltage fault everytime my doors stall. All voltages check out ok.

Spoke with GAL Canada; all parameters and voltages look ok. Motor resistance is ok and DC bus voltage drop is ok.

I have had this problem on other cars at the same building, new boards and parameter values always did the trick.

Any ideas?