Other Features - Aprimatic ONDA 424 Instrucciones Para La Instalación

Controls and regulations
7.4 ADJUSTING THE MAXIMUM TORQUE THRESHOLD
The TR2 trimmer is used to adjust the operating sensitivity
of the motor force limit. Adjust this trimmer so that the
motor can provide the force required for normal gate
moving and so that the system is suffi ciently sensitive
to detect any obstacles (triggering of the torque limit is
described in the Table here to the side).
N.B.: Adjustment of Trimmer TR2 permits safe
operation of the torque threshold as long as the gate
slides on good wheels and sliding guide.
If not, adjust the limit upwards (turn TR2 in a clockwise
direction).
Warning
If the TR2 Trimmer is positioned at the
maximum value (turned fully clockwise), the torque threshold
is not operative and the motor provides the maximum power
- in this case the blinck-light LED and the safety fl ashing light
get ON steady (without blincking).
In this situation, you MUST use extra detection units.
First carry out thorough risk analysis.
7.5 CHECKING THE OPERATION OF THE LIMIT SWITCHES
To indicate that the limit switch plates are in the correct position(Par.5.3) the limit switch makes a clicking sound and the LED
BLINK-LIGHT fl ashes (1 fl ash = CLOSED limit switch engaged; 2 fl ashes = OPEN limit switch engaged).
In order to check that the limit switches work properly:
• Use the remote controls or key selector to give an step- by-step START command: the gate opens.
• During opening, hand work the limit stop lever in the opening direction. The gate must stop.
If the gate does not stop move the limit stop lever in an anti clockwise direction, at this point the gate will stop. It is
necessary to connect correctly the limit switches.
RE-CLOSING MODE/TIMES (FIG.32)
7.6
• Trimmer TR1 sets an automatic closing time which
goes from a minimum of 3 seconds to a maximum of 3
minutes. (Trimmer in band 2)
• With the Trimmer turned completely in a clockwise
direction the automatic closure is disabled (Trimmer
in band 3).
• With the Trimmer fully turned anti-clockwise, a brief
interruption to the photocell beams will command the
gate to re-close (Trimmer in band 1).
7.7 INSPECTION OF PHOTOCELLS
• If the photocell beams are interrupted during the
CLOSING phase the gates will STOP and then fully
OPEN AGAIN.
7.8

OTHER FEATURES

• The control unit is supplied with a function which applies self-calibration whenever there is a successful gate
movement - i.e. without any alarm intervention. In this way, any slow but gradual variations to the installation
conditions are always compensated for.
• During the installation stage, be very careful at carrying out a complete gate movement for the fi rst time. In order to
correctly set the intervention values, the control unit performs this fi rst stage with a high threshold value.
During this stage avoid carrying out alterations or tests on the installation, as this could negatively affect
correct setting.
• In addition, at each start-up of the control unit after a mains power failure, the fi rst command will order the gate to
close slowly in order to bring it back to the closing limit stop.
Fig.31
1
MIN
safety operation of the TORQUE THRESHOLD
during the OPENING
Causes a slight
inversion
Fig.32
3 sec
photocell 1
- EN 12 -
TR2
2
MAX
during the CLOSING
Causes a complete
re-opening
TR1
2
3 min
3 NO
automatic
re-closing