Checking Connections; Adjustments - Nice mindyA60 Guía De Installación

2.2.4) Checking the connections
The following operations entail working on live circuits;
most of these run on extra-low safety voltage so they are
not dangerous; however, some are mains voltage circuits,
which means they are HIGHLY DANGEROUS! Pay the
utmost attention to what you are doing and NEVER WORK
ALONE!
• Power the control unit and check that voltage between
terminals 17-18 is approx. 24Vac.
• Check that the "OK" LED flashes rapidly for a few moments
and then that it flashes at a regular frequency.
• Now check that the LED's related to the N.C. (Normally
Closed) contacts are on (all safety devices active) and that the
LED's related to the N.O. (Normally Open) inputs are off (no
command); if this is not the case, check the connections and
efficiency of the various devices. The STOP input switches off
both FCA and FCC.
• Release the leaves, take them to the halfway point and then
stop them; this way the leaves will be free to move in either the
opening or closing direction.
• Now make sure that movement occurs in the right direction,
i.e., see whether the movement set on the unit corresponds to
that of the leaves. This check is of paramount importance, if
the direction is wrong, in some cases (in the "Semiautomatic"
mode, for instance) the "Automatic" system might appear to
be working properly; in fact, the OPEN cycle is similar to the
CLOSE cycle but with one basic difference: the safety devices
are ignored in the closing manoeuvre, which is normally the
most dangerous, and they will trigger in the opening
manoeuvre, causing the gate to close against an obstacle with
disastrous results!
• To see whether the direction of rotation is correct, give a short
impulse to the Open input and make sure that the automatic

3) Adjustments:

Adjustments can be made through trimmers that modify the following
parameters:
• WORKING TIME (TL1 TL2 ):
These adjust the maximum duration of the opening or closing
manoeuvre of motor 1 (TL1) and motor 2 (TL2).
To adjust the working times TL, select the "Semiautomatic" operating
mode by setting Dip-Switch 1 to ON, then adjust the TL trimmers to
halfway along the travel distance. Now run an opening and closing
cycle and, if necessary, readjust the TL Trimmers in order to leave
enough time for the whole manoeuvre plus a margin of about 2 to 3
seconds.
If the TL trimmers are at maximum and there still is not enough time to
perform the entire manoeuvre, cut the TLM1 jumper to increase the
system moves in the opening direction; if this movement is
incorrect, proceed as follows:
- Turn the power off
- Invert the power conductors of the wrong motor/s. (In the case
of M1, invert the connection of terminals 8-10; for M2, invert
the connection of terminals 11 – 13).
- Once this has been done, check whether the direction of
rotation is correct by repeating the last operation.
The "OK" LED located in the centre of the board next to the
microprocessor has the task of signalling the status of the internal logic:
regular flashing at 1 second intervals indicates that the internal
microprocessor is active and waiting for commands. When the
microprocessor recognises a variation in the status of an input (whether it is a
command or a function Dip-Switch input) it generates a rapid double flash
even if the variation does not have any immediate effects. Extremely rapid
flashing for 3 seconds means that the control unit has just been powered or
is carrying out internal testing. Lastly, irregular flashing means that the test has
been unsuccessful and that a fault has occurred.
working time of motor 1 and cut the TLM2 jumper to increase the
working time of motor 2. These jumpers are located alongside the
corresponding trimmers.
If you wish to use the DECELERATION function (Dip-Switch 8 On),
adjust the working time trimmers so that the motors begin the
deceleration stage approximately 50 - 70cm before the opening or
closing limit stops are reached.
• OPENING TIME DELAY (TRA) AND CLOSING TIME DELAY
(TRC):
If the gate has two leaves that might jam if they start moving
simultaneously, or that might overlap when closing, you need to adjust
the Opening Time Delay trimmer (TRA) or the Closing Time Delay (TRC)
trimmer to overcome these problems.
The TRA trimmer must be adjusted to ensure that the leaf moved by
the second motor is out of the range of the leaf moved by the first
motor when the latter starts moving.
The TRC trimmer must be adjusted to ensure that, during the closing
operation, the leaf moved by the second motor reaches the end of its
travel after the first motor has completed its closing manoeuvre.
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