ENGLISH
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8. ROTATION DIRECTION CHECK
Procedure for checking exact connection of motor phases:
1) Put the operator in manual mode
2) Manually take the door to its operating mid-point.
3) Stop the operator
4) Power up the system.
5) Send an opening pulse (
OPEN
) and check if the motor executes a door opening operation.
If the door closes, change over the phases of the electric motor on the terminal-board (black and brown cables) of the
board.
For two-operator applications, assign the same wire colours to the "
COM
,
OP
,
CL
" terminals, of the board and the Slave board,
and, if you have to change over the phases, change them over for both motors.
• The board carries out an electronic control (the connected motor must be present) before every start. If you
attempt to make the board operate without motor load or with an insufficient load, no power is supplied
at motor output.
• The courtesy light lights up when the motor starts and remains lighted for the programmed time, starting when
the movement has finished.
9. ADJUSTMENT OF ELECTRONIC CLUTCH (ANTI-CRUSHING)
The unit has a motor torque adjustment electronic system which, according to the setting, limits door thrust in the presence
of an obstacle. When the obstacle is removed, the door resumes moving until it reaches the limit-switch or the mechanical
stop.
We advise you to adjust the electronic clutch in conformity with current safety regulations.
10. ENCODER OPERATION
Thanks to encoder management, the
550 ITT
control unit, if correctly installed, guarantees installation in compliance with
current safety regulations.
The encoder is active during both door opening and closing stages.
During the opening stage, the encoder stops door movement and positions the control unit in STOP status. At the first
opening command, the door executes a closing operation and resumes the memory-stored work cycle.
During the closing stage, the encoder reverses door motion until the door is completely open. If operating with an automatic
logic, the door closes when pause time has elapsed.
• Encoder intervention DOES NOT DISABLE automatic re-closing.
• The encoder is disabled by the intervention of one of the two limit-switches, enabling the door to recognise
the mechanical travel stop.
• Obstacle detection sensitivity is linked to the motor torque setting: the more motor power is increased, the
lower the encoder's detection sensitivity and vice-versa.
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