7
4
3.3) Electrical connections
!
To safeguard the operator and avoid damaging the components, make sure that the control unit is switched off while you
are wiring or plugging in the various cards.
• Power the control unit using a 3 x 1.5 mm
2
cable; should the distance between the unit and the earth connection exceed 30m, install an
earth plate near the unit.
• Use wires with a minimum cross-section of 0.25 mm
2
to connect extra-low voltage safety circuits.
• Use shielded wires if the length exceeds 30m and only connect the earth braid to the control unit side.
• Do not make connections to cables in buried boxes even if they are completely watertight.
• If the inputs of the Normally Closed (NC) contacts are not used, they should be jumped with the “24V common” terminal except for the
photocell inputs if the phototest function is enabled. For further information please see the paragraph 3.5 “Notes about connections“ in the
part “ Phototest “.
• If there is more than one (NC) contact on the same input, they must be connected in SERIES.
• If the inputs of the Normally Open (NA) contacts are not used they should be left free.
• If there is more than one (NA) contact on the same input, they must be connected in PARALLEL.
• The contacts must be mechanical and potential-free; no stage connections are allowed, such as those defined as “PNP”, “NPN”, “Open
Collector”, etc.
Carry out the necessary connections, following the diagram in
Fig. 4
and the following description of the connections.
Remember that there are specific standards that must be complied with both as regards the safety of the electrical systems and as regards
automatic gates.
3.4) Description of electrical connections
The following table provides a brief description of the possible control unit output connections.
Terminals
Function
Description
1-2-3
:
Power supply =
Mains power line
4-5
:
Flashing light =
Output for connecting flashing light to mains voltage (Max. 40W)
6-7
:
Courtesy light =
Clean contact output for courtesy light connection (Max. 5A)
8-9-10
:
Motor1 =
Motor 1 control output,
11-12-13
:
Motor2 =
Motor 2 control output
15-16
:
Electric lock =
12 Vdc output for electric lock activation, max. power 25W
17-18
:
24 Vac =
Power supply to 24Vac services ( Max. 200 mA)
19
:
Phototest =
Phototest output - “TX” power supply to photocells - (Max. 75 mA)
20
:
Common =
Common for all inputs
21
:
AC light =
24 Vac output for open gate indicator light (Max. 2W)
22
:
Stop =
Input with “Stop” function (Stop and short reverse run)
23
:
Photo =
Input for safety devices
24
:
Photo1 =
Input for additional safety device
25
:
Step by step (PP) =
Input for cyclic movement (“Open” – “Stop” – “Close” – “Stop”)
26
:
Open =
Input for opening function
27
:
Close =
Input for closing function
Aerial =
Input for the radio receiver aerial
Close
Motor 2 Close
Motor 2 Common
Motor 2 Open
Motor 1 Close
Motor 1 Common
Motor 1 Open
Open
Step
by
step
Photo1
Photo
Stop
AC
light
Common
Phototest
24
Va
c ~
200mA
Electric loc
k
12Vdc Max 25W
Cour
tesy light
Po
wer suppl
y
Flashing light
Max 40W
EN
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