Short activation of VMB4RYNO contacts when power comes up

After an electrical power break on the bus the 4 contacts of one VMB4RYNO are closed of a short time (puls).
I have several of these modules, but my dooropener is connected to this one. I do not like to re-cable the system,so is there a way of solving this problem.
When I have a power failure (it has happend some time ago) and the power comes up again, my front door is opened!