ALMAC Athena 870-BL EVO, Перевод оригинальной инструкции

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59 ALMAC s.r.l.
The limit switch and the relays are monitored by the control unit, which
generates an alarm if a fault is detected.
If the limit switch malfunctions, the Proactive levelling function is disabled.
If the relays malfunction (bonding), the entire operation of the machine, except
for the downward movement, is disabled.
3.4.3 Work platform height control device
On the upper frame of the scissors, directly under the work platform, there is a
Can Bus angle sensor that constantly communicates the inclination measured to
the electronic control unit.
The angle sensor is redundant (thus consisting of two separate sensors) and the Y
inclination axis of the scissor frame is monitored (longitudinal)
The signals of the two sensors are constantly compared with each other to assess
their consistency.
The values of the two sensors are constantly compared with the Y values of the
sensors attached to the frame.
By measuring their difference, it is possible to establish the height of the work
platform compared to the completely lowered position (relative angle between
scissors and frame 4°).