When Samus enters the room for the first time, the doors close as the Space Pirates discover her presence in their mining facility. A Pirate Trooper ends up stuck behind it and most likely escapes into the base. The Blast Doors block access to the major areas of the base. After dealing with the Pirates that ambush her, Samus must enter the control booth of the Command Center, through Security Station B. Here, she can scan an Interface Module, which will lift the doors. It will also jam the control and security systems in the door, leaving it permanently open.
"Blast Door control security bypassed.
Door will remain in the open position: security and control systems have been jammed at the source."