4
ROBUS is a line of irreversible electromechanical gearmotors for the
automation of sliding gates. It is equipped with an electronic control
unit and connector for the optional SMXI or SMXIS radiocontrol
receiver. The electrical connections to external devices have been
simplified through the use of “BlueBUS”, a technique by which sev-
eral devices can be connected up using just 2 wires. ROBUS oper-
ates with electric power. In the event of a power failure, the gearmo-
tor can be released using a special key in order to move the gate
manually. Alternatively, there is the PS124 buffer battery (optional
accessory) which makes it possible to use the gate also during the
event of a power failure.
Other products are also part of the ROBUS line, the difference of which is described in table 1.
Note: 1Kg = 9,81N for example: 400N = 61Kg
2) oduct description and applications
1
Gearmotor type RB400 RB400P
Limit switch type electromechanical inductive proximity
Maximum leaf length 8m
Maximum leaf weight 400Kg
Peak thrust 16Nm
corresponding to a force) (400N)
Motor and transformer Motor 24Vcc Ø 77mm
EI core-type transformer
Table 1: comparison of the ROBUS gearmotor main characteristics
2.1) Operating limits
Chapter 8 “Technical Characteristics” provides the only data needed
to determine whether the products of the ROBUS line are suitable for
the intended application.
The structural characteristics of ROBUS make it suitable for use on slid-
ing leaves in conformity with the limits indicated in tables 2, 3 and 4.
The effective suitability of ROBUS to automate a particular sliding
gate depends on the friction as well as other correlated factors, such
as ice, that could interfere with the movement of the leaf.
For an effective control it is absolutely vital to measure the force nec-
essary to move the leaf throughout its entire run and ensure that this
is less than half of the “nominal torque” indicated in chapter 8 “Tech-
nical characteristics” (a 50% margin on the force is recommended,
as unfavourable climatic conditions may cause an increase in the
friction); furthermore, it is necessary to take into consideration the
data indicated in tables 2 and 3 to establish the number of
cycles/hour, consecutive cycles and maximum speed allowed.
RB400, RB600P
Leave width (m) max. cycle/hour
max. no. of consecutive cycles
Up to 4 40 20
4 ÷ 6 25 13
6 ÷ 8 20 10
8 ÷ 10 --- ---
10 ÷ 12 --- ---
Table 2: limits in relation to the length of the leaf
330mm
195mm
277mm
92mm
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