User manual

DPSI RV Family Operating Instructions Version 2.1
page 35 of 44
6.12. EMCOTEC Filter Capacitor
Using powerful digital servos can cause these to induce extremely high
peak voltages (counter electro automotive force) which, under certain
circumstances damage the receiver or “crash” the microcontroller in
the receiver. Because of their dimensions, filter capacitors built into the
receivers often do not suffice to eliminate these disturbances. DPSI
systems are equipped with up to 46 filter capacitors and additional
parts to suppress or at least lower servo counter electro automotive
force. Nevertheless, it is reasonable to additionally install the
EMCOTEC filter capacitor (especially when using high power digital
servos).
The EMCOTEC filter capacitor is installed at an unused servo output
(or at “Batt.”) directly
at the receiver and makes sure, that peak
voltages that can disturb the receiver are eliminated. Even short
voltage dropouts will be effectively bypassed by this capacitor. In any
case, the filter capacitor is a reasonable extension, which increases
safety in the receiving system with or without a battery switch.