Automatic Systems
Logic D1 v06-02-en0802.doc
ERB-PM
Technical manual
18/31
EXAMPLES/
DPFS-S-F or DPFS-O-F
Card reader
Fig. 3
Example 1: The driver presents a valid card to the card reader, the barrier rises, the vehicle passes
and is detected by DPFSSF or DPFSOF. The vehicle exits DPFSSF or DPFSOF, and the barrier
closes. If the vehicle comes back in the loop before complete closing, the barrier stops if DPFSSF or
rises again if DPFSOF and when the vehicle again exits the loop, the barrier will resume its closing if
DPFSSF or will close again if DPFSOF.
Fig. 5
Direction 1
detection
Card reader
DPFS-S-F or DPFS-O-F
DP1
DPO
Direction 2
detection
DP2
Example 2: In direction 1: The driver presents a valid card to the card reader. The barrier rises, the
vehicle passes over the DP1 (function DPFSSF or DPFSOF), arrives on DP2 (function DPO, which, in
the other direction, commands the opening of the obstacle)
while remaining
on the DP1 (DPSSF or
DPSOF) and the relay allocated to passage 1 gives a direction 1 pulse. Then the vehicle exits the DP1
(DPSSF or DPSOF) and the barrier closes again because the DP2 (DPO) does not command the
opening.
In direction 2: The vehicle arrives on DP2 (function DPO) and commands the opening of
the barrier. The vehicle passes from DP2 to DP1 (DPFSSF or DPFSOF) ensuring the continuity of the
detection and the relay allocated to passage 1 gives a direction 2 pulse.
Then the vehicle leaves the DP2 (DPO), the barrier remains open and when it leaves the DP1
(DPFSSF or DPFSOF), the barrier closes.
Variant: If the vehicle does not pass through and leaves the DP2 (DPO), the opening command stops
and the barrier closes.
In all cases of automatic closing, the DP1 (DPFS) retains its safety stop function during the
descending movement.
