VEGA RK-2.4/User manual
9
Revision № 01 of 21.08.2017
4 OPERATION DESCRIPTION OF THE READER WITH
LOCKING RELAY
Each time the signal at the reader control input (lock / unlock) changes, a wireless
command is sent to lock / unlock the relay. If the relay is not in sight or the relay is not
energized, then the command from the reader is repeated for 15 seconds. On the other
hand, when the power is turned on, the relay independently requests the blocking status
from the reader for 15 seconds. If it was not possible to contact the reader (for example,
it was removed by the hijacker), then the relay automatically turns on the blocking.
In the event of a fall at the control input of the reader, a command to block is
sent, at a rising edge at the input, an unblock command is sent.
MOTION DETECTOR IN LOCKING RELAY
A motion sensor is implemented in the relay, which selects exactly the movement
of the car, does not respond to vibrations of a running engine (on a running engine, the
circuit will break precisely during movement). The sensor does not react to the wind
swinging the car, to blows on the body, to sound pops.
OРERATION DESCRIPTION OF THE RELAY
After turning on the relay requests the blocking status (BS) independently for 15
seconds. For the duration of these 15 seconds, the blocking status is taken from the non-
volatile memory, and if the previous status from the non-volatile memory was active,
then the motion control starts immediately 5 seconds after the relay is turned on. If the
previous blocking status from the non-volatile memory was inactive, then within 15
seconds while the status request is in progress, the movement is not controlled, the
circuit is normally closed. If there is no response from the reader within 15 seconds, the
relay automatically sets the active blocking status and motion control starts. When
power-up on the first successful exchange, it receives a blocking status, repeated
requests are not performed.
1. The relays can be installed in different circuits of the car, powered (12V) not
only from the ignition, but also from other circuits (for example, the power supply circuit
of a gasoline pump, or a circuit with a possible power interruption during motion). In
some devices, it happens that the power is regulated by an automatic control unit and
turns off during inactivity of the device. Usually, installers connect the relays to the
power of these devices and, therefore, the power to the relay may not appear
simultaneously with the ignition, including disappear periodically. When power is
applied, the relay must have an actual blocking status, therefore, when starting, the relay
requests the reader for the blocking status independently.
2. If the monitoring device and the reader are removed by the hijackers or are de-
energized, the relay, upon switching on (in most cases when the ignition appears), will
