12
ENGLISH
724D ELECTRONIC CONTROL UNIT FOR 24 Vdc SLIDING GATES WITH
ENCODER AND LIMIT-SWITCH
1. GENERAL CHARACTERISTICS
This control unit for 24 Vdc sliding gates with encoder offers high performance and a wide range of adjustments: opening
and closing decelerations, motor control and a facility for managing the opening and closing limit-switches.
A sophisticated electronic control constantly monitors the power circuit and disables the control unit in the event of
malfunctions that could impair efficiency of the electronic clutch.
The parameter settings and the operating logic are shown on a handy display, which, indicates gate status during
normal operation.
The 24V operators 740 are designed to directly house 2 12Vdc-1,2Ah buffer batteries (optional). Alternatively, 2 larger
external 12Vdc-4Ah batteries (optional) can be used with support for fastening in suitable enclosure.
2. TECHNICAL SPECIFICATIONS
Supply voltage of transformer
230/115 V~ (+6 -10%) - 50/60 Hz.
Supply voltage of control unit
22 V~ (+6 -10%) - 50/60 Hz.
Absorbed power
3 W
Motor max load
70 W
Accessories max load
24Vdc 500mA
Flashing lamp
24Vdc 15W max.
Operating ambient temperature
-20°C +50°C
Protection fuses
3
Function logics
Automatic / Stepped Automatic / Semiautomatic / Step-
ped Semiautomatic / Condo type
Opening / closing time
Through self-learning during programming
Pause time
Through self-learning during programming
Thrust force
Four levels adjustable on display
Decelerations
Through self-learning during opening and closing
Terminal board inputs
Power supply 22V~ / Battery supply / Encoder / Total
opening / Pedestrian opening / Opening-closing safety
devices / Stop / Opening-closing limit-switch
Radio connector
Rapid 5-pin connector
Terminal board outputs
24Vdc power supply to accessories / 24Vdc Motor /
Flashing lamp 24Vdc
Board dimensions
127 x 145 mm.
Characteristics of 230V~ toroidal transformer
prim. 230V~ / sec. 22V~ / 120VA
Characteristics of 115V~ toroidal transformer
prim. 115V~ / sec. 20V~ / 120VA
Characteristics of optional batteries
12V - 4 Ah / dimens. 90 x 70 x 108 mm.
Characteristics of outdoor enclosure
306 x 225 x 130 mm. - IP55
Different output values on voltage 24V~ are possible according to the mains voltage. Before starting, always check
the transformer output voltage. It shall not exceed 26V~ both for the 230V~ power supply and 115V~ power
supply. Voltage is to be measured loadless, i.e. when the transformer is supplied with power but disconnected
from the board.
3. PRELIMINARY SETTING-UP
To ensure people’s safety, all warnings and instructions in this booklet must be carefully observed. Incorrect
installation or incorrect use of the product could cause serious harm to people.
Make sure there is an adequate differential switch upstream of the system as specified by current laws, and install a
thermal breaker with all-pole switching on the electrical supply line.
To lay electric cables, use adequate rigid and/or flexible pipes. Always separate the connection cables of low voltage
accessories from the 115/230 V~ power cables.
In the version with control unit installed on the gearmotor, some connections and installations described in these
instructions (motor, transformer, encoder, etc) are factory wired.
In the version with control unit in the watertight outdoor enclosure, maximum length of connection cables
between control unit and motor/encoder must not exceed 3 m., using 2x2.5mm² cables for the motor and
3x0.5mm² cables for the encoder and for the limit-switches (optional).
To secure the various components inside of the airtight enclosure, refer to paragraph 14.
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