ENGLISH
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11 - PHOTOCELLS
The unit has two inputs for photocells (normally closed contact),
which can be independently enabled and associated with different
functions:
Connect the N.C. output of the photocell 1 (FOT1) between
terminals
S5
and
S9
Connect the N.C. output of the photocell 2 (FOT2) between
terminals
S6
and
S9
m
WARNING:
• If you connect multiple photocells on the same terminal, the
connection must be done in series: all photocells will have the
same function.
• If you do not connect any photocell to terminal
S5
,
the menu
FOT1
must be set to
NO
.
• If you do not connect any photocell to terminal
S6
,
the menu
FOT2
must be set to
NO
.
Regardless of the selected function, if the photocells are activated
during the pause, the pause time is reset using the value set in
parameter
CH.AU
.
If you want to accelerate the closing of the door, after the transit,
set a value for the parameter
CH.TR
lower than
CH.AU
’s.
The pause time can be reset using the value of
CH.TR
.
If you want to stop the door after transit through the photocells,
set the value
SI
for the parameter
PA.TR
NOTE
: if the photocells are connected on the two FOT1 and
FOT2 inputs the door stops only after the passage in front of both
photocells have been detected
11.1 - PHOTOCELL OPERATIONS
Photocell operations depend on the value programmed by
parameters
FOT1
and
FOT2
.
FUNCTION
VALUE
Active photocells when opening and closing
APCH
Masking function
MASK
Anti-dragging function
HOOK
Photocell disabled
NO
After selecting the value for parameters
FOT1
and
FOT2
you
arrive at a secondary
P.AP.F
menu that allows the opening
stroke value of the door where the photocells are active to be set.
NOTE: if you wish to activate the photocell only when
closed, set parameter
P.AP.F
=
0
Below the behaviour of the door when the photocell is interrupted
is described, based on having set parameter
FOT1
or
FOT2
, and
on the position of the door.
It is assumed that the
P.AP.F
parameter is set at
40%
.
Figure A
on the page to the side shows activation of the
photocell while the door is found to be above 40% of the total
height.
Figure B
shows the same situation, but with the door below
40%.
Figure C
shows activation of the photocell when the door has
already activated the photocell masking switch, connected to
terminals H3-H5.
1. Active photocells when opening and closing
-
APCH
• During closure of the door, if the photocell is interrupted the
following scenarios can be checked based on the configuration
of the
P.AP.F
parameter (e.g. 40%) and the position of the
door:
- In case A the door re-opens immediately
- In case B the door shuts: when it is released the photocell
re-opens completely.
• During opening of the door, if the photocell is interrupted the
following scenarios can be checked based on the configuration
of the
P.AP.F
parameter (e.g. 40%) and the position of the
door:
- In case A the photocell is bypassed
- In case B the door shuts: when the photocell is released it
starts opening again.
• Closed door, if the photocell is interrupted the start-up
commands are rejected (by setting
P.AP.F
=
0
the photocell is
bypassed and the start-up commands are accepted).
• Open door, if the photocell is interrupted the pause time is
reloaded, and the closure commands are rejected.
2. Masking function
-
MASK
This function may serve with the curtain doors which, by billowing
during closure, may interrupt the photocell beam.
m
A switch must be positioned immediately above the
photocell and the N.C. contact must be connected to terminals
H3
and
H5
. When the contact opens the photocell is bypassed.
NOTE
: configure the
ENCO
parameter on
INTRM
or
EN.1C
The function of the doors is the same as point 1, but if the
photocell ray is blocked during closure, when the door has already
activated the switch attached between terminals H3-H5 (case C),
the photocell is bypassed and the door continues to close.
3. Anti-dragging function
-
HOOK
Intervention of the photocell during the first part of the door
opening indicates the possibility that the operator has accidentally
remained hooked.
This function serves to avoid the operator being lifted up from the
moving door.
Operation of the door is the same as point 1, but if the photocell
ray is interrupted when the door begins opening or finishes
closing (case B), the door closes.
To make it restart, the following operations must be carried out:
1.
Release the photocell ray
2.
Press the emergency stop button connected to terminals T1-T2
and rearm it
3.
Send a start-up command
NOTE
: if the emergency stop button is not installed, use of this
function is not recommended
