ENGLISH
- 48 -
12 - DETECTION OF OBSTACLES
(AMPEROMETRIC SENSOR / SAFETY
RIBBONS)
The presence of an obstacle that prevents the movement of the
gate can be detected in several ways:
1.
Amperometric sensor
2.
Safety ribbons
m
Following detection of an obstacle during closure,
the gate reopens and the behaviour of the power centre
depends on various parameters, with the following priority:
1.
If the clock mode is active (
MODE
=
OROL
), counting of the
pause time for automatic closure is activated.
2.
If the gate is closed without withdrawing, or if closure after the
obstacle is manual (
CH.OS
=
MAN
), counting of the pause
time for automatic closure is NOT activated and the gate will
start moving again after the next start-up command is given
3.
If closure after the obstacle is automatic (
CH.OS
=
AUTO
),
the centre will behave according to the settings of the
CH.AU
parameter
12.1 - AMPEROMETRIC SENSOR
An unexpected increase in the consumption of current by the
motor is meant as the result of the presence of an obstacle.
This feature is automatic and requires no settings.
12.2 - SAFETY RIBBONS
The unit detects the presence of an obstacle when a safety ribbon
is pressed.
The unit has two inputs for the ribbons, which can be
independently enabled and associated with different types of
function.
Connect the active ribbons during opening between the terminals
S7
and
S9
.
Enable the operation of the ribbons through the parameter
COS1
:
• If you set
AP
the operation of the ribbon is detected only
during opening and the gate reverses the movement for 2.5
seconds
• If you set
APCH
the operation of ribbon is detected during
the opening and closing: when opening the gate reverses the
movement for 2.5 seconds, while when closing the gate is
stopped
Connect the active ribbons when closing between terminals
S8
and
S9
.
Enable the operation of the ribbons through the parameter COS2:
• If you set
CH
the operation of the ribbon is detected only
during closing and the gate reverses the movement for 2.5
seconds
• If you set
APCH
the operation of the ribbon is detected
during closing and opening: when closing the gate reverses the
movement for 2.5 seconds, while when opening the gate is
stopped
m
WARNING:
• If you do not connect any ribbon to the terminal
S7
, the
parameter
COS1
must be set to
NO
.
• If you do not connect any ribbon to the terminal
S8
, the
parameter
COS2
must be set to
NO
.
S1 S2 S3 S4 S5 S6 S7 S8 S9
COS1
COS2
COS1
parameter
a
DEFAULT =
NO
(no function)
COS2
parameter
a
DEFAULT =
NO
(no function)
The unit can operate with different types of ribbons; depending
on the type of ribbon used it is required to correctly set the
parameter
CO.TE
NOTE
: You can not use different types of ribbons on two
COS1
and
COS2
inputs.
a.
Mechanical ribbons with normally closed contact
Set the parameter
CO.TE
with the value
NO
: not test is run
before the movements.
b. Optical ribbons
Set the parameter
CO.TE
with the value
FOTO
: before any
movement a functional test similar to that of photocells is
carried out. If you do not want the test to be run, set
NO
.
Connect the power supply of the optical ribbons following the
instructions described in chapter 11.1
c. Ribbon with resistive rubber
Set the parameter
CO.TE
with the value
RESI
: the unit is
expected to measure an impedance equal to 8.2 kohms, and
an alarm is triggered if a lower impedance (pressed ribbon) or a
higher impedance (interrupted wire) are detected, therefore it
is not necessary to run the test before the movements.
m
WARNING: If you connect multiple ribbons to the
same terminal, the connection must be made in series,
except in the case of resistive ribbons which which must be
connected in parallel.
Содержание HYPERFOR 4000-I
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