Electrical Connections - Key Automation 900CT-24SU Manual De Instrucciones

ELECTRICAL CONNECTIONS

To ensure operator safety and to prevent damage to the components while connections are being made, or
when the radio card is being inserted, the control unit absolutely must not be powered on.
For power cords, motor lines, flasher/courtesy light line, and electric lock, use a cable with a cross-section
that is suitable for the length (minimum 1.5 m²).
For auxiliary power supplies, controls and safety contacts a minimum section of 0.5 mm
cables are very long (more than 30 m), de-coupling is suggested using relays at the control unit.
If a fuse trips, after removing the cause, replace it with another one of the same type. Install the various
safety devices, limit switches, photocells, sensitive rib, stop button.
If one or more of the safety devices are not installed, the corresponding terminals must be short circuited
with the controls common.
All contacts N.C. Assigned to the same input they must be connected in series.
All contacts N.O. Assigned to the same input they must be connected in parallel.
Provide disconnecting devices in the power supply network in accessible places.
For the power supply of the control unit, there must be an external DISCONNECTING SWITCH (not
included), independent and properly sized.
Keep the power supply cables and the encoder cables separate with a distance motor-control unit with a
maximum of 10 metres. Do not use multi-pole cables.
Encoder connection :
Connection of Motor M1 : Term. N.4 and Term. N.5
Connection of limit switches: Ter.N.6 COMF common of limit switches
Flasher Connection: Ter.N.9 LAMP and Ter.N.10 COM
In both opening and closing, there is a pre-flash of 1.5 sec. to inform the user that the automation activates a
movement.
Courtesy light connection: Max. Pwr. 25W 24V DC
Connected between ter.N.15 L.C. and Ter.N.18 or 10 COM activated as soon as it receives the open
command, goes off after 90 sec. from the last action performed
Ter.N.1 +ENC positive power supply of device
Ter.N.2 SIG Signal
Ter.N.3 –ENC negative power supply of device
Ter.N.7 FCA Opening limit switch contact N.C. The LED goes off when
the limit switch is activated
Ter.N.8 FCC Closing limit switch contact N.C. The LED goes off when
the limit switch is activated
15
24V min.2x1.5m²
Encoder min.3x0.5 m²
GB
2
. When the control