DPSI RV Family Operating Instructions Version 2.0
Page 40 of 48
7. Error Indication
The DPSI RV has an internal 8-bit microcontroller that constantly
monitors all voltages. An intelligent algorithm ensures that low voltage
of the connected batteries is detected not only by the short-term drop
in voltage during movement of all servos. The internal resistance of the
battery cells, which is indeed different for different types of batteries,
thus has relatively little influence. The algorithm was especially
designed for operation in RC model airplanes (thus a cyclical load of
the batteries), i.e. not for permanent load of the batteries. Safe
detection of low voltage is therefore possible.
The internal piezo buzzer indicates various types of errors:
1. Overload (short circuit):
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
Error signal: Continuous beep
If the power consumption of the DPSI RV becomes too high, a
continuous buzz tone is emitted. In this case there is an external short
circuit, which can lead to destruction of the DPSI RV (depending on the
duration of the short circuit). In this case, turn it off immediately or
remove the batteries. This type of error has the highest priority. Once
the short circuit (during operation) has been corrected, the buzzer
stops buzzing after a de-qualification time of about 4 seconds.
2. Batteries empty:
⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯
Error signal: continuous 0.1 second beep / 0.1 second
pause
If the voltage at the receiver (or at the servos) drops below a value of
about 4.3 volts, this error will be emitted. In this case, the batteries
(regardless of which type is being used) are completely discharged and
safe operation is no longer possible. This error is extremely critical,
since the entire RC system can completely “abort” at any time (due to
the low voltage).
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