Assembly & Operation Manual
30
Free passage in the direction B (open for free passage in the direction B)
Active front is at the contact
“
Unlock B
”
while there is a low level at the contact
“
Stop
”
and
a high level at the contact
“
Unlock A
”,
or active front is at the contact
“
Stop
”
while there is a low level at the contact
“
Unlock B
”
and a high level at
contact “
Unlock A
”.
At this command the passage direction B opens until the command
«Always locked»
is
received; the status of the passage direction A does not change at that.
Free passage (open for free passage in both directions)
Active front is at the contact
“
Unlock A
” while there is a low l
evel at the contacts
“
Unlock B”
and “
Stop
”,
or active front is at the contact
“
Unlock B
” while there is a low le
vel at the contacts
“
Unlock A
” and “
Stop
”,
or active front is at the contact
“
Stop
”
while there is a low level at the contacts
“
Unlock
A
” and “
Unlock B
”.
The both directions open at this command until the command
«Always locked»
is
received.