14
ENGLISH
ENGLISH
These instructions apply to the following models:
746 EMC Z20 - 746 EMC CAT - 746 EMC RF
The FAAC model 746 automation for sliding gates is an
electromechanical operator which transmits movement to
the gate leaf by means of a rack and pinion or drive chain
coupled in appropriate manner to the sliding gate.
The irreversible system ensures that the gate is mechanically
locked when the motor is not in operation and therefore it is not
necessary to install a lock.
The gear motor is equipped with an adjustable mechanical
clutch which, in conjunction with an electronic sensor, affords
the necessary adjustable anti-crushing safety and guarantees
that the gate motion is either stopped or reversed when an
obstacle is encountered. A release device allows the gate to
be operated manually in the event of a power failure or
malfunction.
The electronic control unit is supplied with the gear motor and
is housed inside the operator.
The 746 automation has been designed and built for vehicle
access control. Do not use for any other purpose.
AUTOMATION 746 & 746 MPS
MODEL
746
Power supply
230V~ (+ 6 % - 10 %) 50Hz
Power consumption (W)
300
Reduction ratio
1 ÷ 30
No. of pinion teeth
Z20
Rack
4 module pitch 12,566
Max. thrust (daN)
50 (Z20)
Max. torque (Nm)
20
Winding thermal protection
120 °C
Duty rating
30 % (see graph)
Oil quantity (l)
1.8
Type of oil
FAAC XD 220
Temperature range
-20 to +55 °C
Gear motor weight (kg)
14
Housing protection
IP 55
Max. gate weight (kg)
400 (Z20)
Gate speed (m/min)
12 (Z20)
Max. gate length
50m (Z20)
Clutch
bidisk in oil bath
Housing treatment
cataphoresis
Control unit
746 MPS
Limit switches
inductive with stop plates
Gear motor dimensions LxHxD (mm)
see Fig. 2
Electric motor technical specifications
Motor speed (rpm)
1400
Power consumption (W)
300
Current draw (A)
1.5
Starting capacitor
25µF
Power supply
230V~ (+ 6 % - 10 %) 50Hz
Table 1
TECHNICAL SPECIFICATIONS OF 746 OPERATOR
1. DESCRIPTION AND TECHNICAL CHARACTERISTICS
1.1.
MAXIMUM UTILISATION CURVE
The curve allows the maximum working time (T) to be obtained
as a function of duty cycle (F).
E.g.: the 746 operators can work continuously at a duty cycle
of 30%.
To ensure good operation, keep to the field of operation lying
below the curve.
Important
: The curve refers to a temperature of 24°C. Exposure
to direct sunlight can result in a reduction in duty cycle to as
low as 20%.
Calculating duty cycle
The duty cycle is the percentage of effective working time
(o closing) with respect to the total cycle time (opening
+ c pause times).
It is calculated using the following formula:
Ta + Tc
%F =
X 100
Ta + Tc + Tp + Ti
where:
Ta = opening time
Tc = closing time
Tp = pause time
Ti
= interval between one complete cycle and the next.
Graph of duty cycle
Fig. 1
10
20
30
40
50
60
70
80
90
100
0
1
2
3
4
5
6
7
8
9
10
10
11
12
Percentuale
di lav. %
Tiempo (h)
% Duty cycle
% Fréquence
d'utilisation
% Benutzungs-
frequenz
% Frecuencia
de utilización
Zeit (Std.)
Temps (h)
Time (h)
Tempo (h)
a
Fixing angle bars
b
Pinion
c
Inductive proximity limit switch
d
Electronic control unit enclosure
e
746MPS electronic control unit
f
Breather screw
g
Adjusting screw for anti-crushing clutch
h
Oil filler cap
i
Release lever
j
Fixing bar cover
a
a
a
a
a
b
b
b
b
b
c
c
c
c
c
d
d
d
d
d
e
e
e
e
e
f
f
f
f
f
g
g
g
g
g
h
h
h
h
h
i
i
i
i
i
j
j
j
j
j
