GB
Sound module USM-RC-3
11.10.2021
BEIER-Electronic
55
Servo outputs
The USM-RC-3 offers 4 servo outputs (X5/1 - X5/4).
The servo outputs deliver usual pulses from 1.000 – 2.000 ms, so you can connect
standard servos or speed-controllers.
The power for the servo outputs is supplied from the proportional inputs #1 - #8
using the connections X2/1 - X2/8. Generally these connections are attached directly
to the receiver, so the receiver battery and the BEC of the speed-controller must
deliver enough current for the servos!
There are 3 different ways to control the servo outputs:
1. Driving to fixed positions
2. Direct, proportional control via a prop. channel
3. Running through a programed sequence
Move to fixed positions:
For each servo, up to five positions can be specified in the Sound-Teacher (see
page 90), which can be approached via the freely assignable functions of the sound
module. The positions have the following names:
•
Home position
•
Position #1
•
Position #2
•
Position #3
•
Position #4
Direct, proportional control via a prop. channel:
Any desired prop. Channel can be assigned in the Sound-Teacher, which is to be
used for the "direct servo control" (see page 90). The servo then behaves as if it
were connected directly to the receiver. However, this makes it easy to play a sound
as soon as the servo moves.
The servo travel can be scaled with direct control. The
scaling range is -100% to +100%. Whereby negative values reverse the direction of
the servo.
Running a programed sequence (only servos 1 and 2):
A flow sequence can be programmed for servo outputs 1 and 2 in the Sound-
Teacher. Conceivable applications are e.g. a recoil system for a tank or an easy
windshield wiper for a truck.
A servo sequence can be triggered with the functions “Servo 1 sequence“, “Servo 2
sequence“ or with a sound (e.g. a cannon shot). A detailed description of the servo
sequence can be found on page 88.
A servo output can only be controlled either to a fix positions or as a sequence. Both
versions are not possible at one servo output.
The servo movement can also trigger a sound. The additional sounds “Sound from
servo 1/2“ are responsible for this. It also distinguishes between left and right