How To Deal With Problems; Interesting Facts; Servos - Faller 180725 Bedienungsanleitung

How to deal with problems

7. How to deal with problems
TIP
Direct line to FALLER's customer service department:
Phone + 49 (0) 77 23 / 651-106
E-mail kundendienst@faller.de
EN
Problem Possible cause
A servo The Servo Control is
does not not connected to the
work. supply voltage.
Polarity of the connec-
tor of the servo has
been reversed.
The rock- The configuration var-
ing func- iable of the ampli-
tion does tude of oscillation has
not work. be given the value 0
or 127 (minimum and
maximum values). This
makes the servo una-
ble to carry out the
rocking motion.
Tab. 4: How to deal with problems
54
ANLAGENBAU
Remedy
Connect 16 V alternating
X
voltage to the »16 VAC«
port of the Servo Control.
Rotate the plug of the servo
X
by 180°.
Give a value that is higher
X
than 0 and lower than 127.
ANLAGENBAU
8.

Interesting facts

Servos

What is a servo?
A servo is a device that is able to transform control commands into mechan-
ical motions.
Types
In model making we speak of analog and digital servos. In an analog servo
the electronic equipment features an analog structure. In a digital servo the
position of the motor is detected in the form of a numerical value and com-
pared with a desired value by an appropriate computing circuit. Digital ser-
vos feature a higher angular resolution and their position is adjusted more
quickly and more accurately. Digital servos can often be reprogrammed,
which allows to adapt the speed, the overload protection and similar to the
specific application, depending on the servo version. However, the auxil-
iary energy required by digital servos as well as their price are higher than
those of analog servos.
Structure
A servo is composed of a drive unit and a triggering unit such as for instance
an electric motor with electronic control system. The motor must be able
to rotate in both directions, and the system must be able to determine the
rotating position of the motor at any moment. The electric connection of a
servo is carried out using three wires. Two for the operating voltage ("plus"
and "minus") and one for the pulse ("Desired value").
Interesting facts
EN
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