
AT-EB
12 A2B00101764A/003, 11/2013
Functionality Description of AT-EB firmware V1.10
Used Firmware Versions
AT-EB firmware V1.10 is used with AT18S firmware V1.10 or ATE250S firmware V1.10.
The corresponding S7-logic file is “anquanmengchengxu090117_A_EN.mwp”.
There are 3 control modes: auto, manual and isolation.
In auto mode, the door open and close under the open door/close door commands or PROFIBUS open door/close door
commands.
In manual mode, the door open and close under the local open door/local close door commands. The door locked and door
opened signals to digital outputs are always true. But the door locked and door opened signals to upper PLC are according
to the actual status.
In isolation mode, the door does not react to any open/close commands from digital inputs or PROFIBUS. The status light is
always on. The buzzer is disabled. The actual door locked signal is sent to digital output and upper PLC. The door opened
signal is always true, which is sent to digital output and upper PLC.
The door uses a mechanical lock on each half wing, which can be automatically unlocked when the door starts to open with
the force from the motor, without a electro-magnetic coil operation.
But in emergency situations, the passenger can open the door manually from the track side. At this moment, AT-EB can
receive a “manual unlock” signal from digital input. Then AT-EB will energize the electro-magnetic coils with its 15th digital
output to unlock the door. Only after this unlock operation, the passenger can open the door from the track side.
When there is a manual unlock operation, the buzzer is on and the status light flashes. The door will automatically close
after 60 seconds (can be adjusted in the AT-EB parameter).
In manual mode, there is no closing block function. The door will continue closing as long as there is a manual close
command and the AT18S or ATE250S internal protection function is not activated.
In auto mode, when there is a block during the closing door operation, the door will stop for 2 seconds (can be adjusted in
the AT-EB parameter), then try to close again. After 3 times (can be adjusted in the AT-EB parameter) of re-tries, if there is
still closing block, the door will open fully. Then AT-EB will give an alarm, buzzer is on and the status light flashes. After a
new close or open command or switch to other mode, the alarm will leave.
In manual mode, there is no opening block function. The door will continue closing as long as there is a manual close
command and the AT18S or ATE250S internal protection function is not activated.
In auto mode, when there is a block during the opening door operation, the door will stop for 2 seconds, then try to open
again. After 3 times of re-tries, if there is still opening block, the door will stop. Then AT-EB will give an alarm, buzzer is on
and the status light flashes. After a new close or open command or switch to other mode, the alarm will leave.
In manual mode, there is no infrared detection.
In auto mode, there is infrared detection to protect the passenger, who is in the space between the train door and the safety
door. Within 5 seconds (can be adjusted in the AT-EB parameter) after the door is locked, the infrared detection is activated.
If there is any block detected, the door will open fully and then re-close immediately. This re-close can be re-tried from 3
times (can be adjusted in the AT-EB parameter). After the counter is up, the door will open fully and AT-EB will give an
alarm, buzzer is on and the status light flashes. After a new close or open command or switch to other mode, the alarm will
leave. Outside the 5 seconds activation window, if there is a block, the status light will be on, but the door doesn’t open.