Zapi DUALAC2, Operating Handbook

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3 SAFETY AND PROTECTION
ZAPI controllers are designed according to the prEN954-1 specifications for safety
related parts of control system and to UNI EN1175-1 norm.
The safety of the machine is strongly related to installation; length, layout and
screening of electrical connections have to be carefully designed.
Dualac2 controller electronic implements double hardware circuit for four inputs: Seat (C5),
Forward (C6), Reverse (C7), Accelerator Enable (C8).
These signals are input, through two hardware independent circuits, to both
microcontrollers which implement a cross-check of the input status, thus preventing an
abnormal behaviour due to a failure in the input hardware.
It is strongly suggested to connect the machine safety related devices to these
four inputs, in order to increase machine safety.
ZAPI is always available to cooperate with the customer in order to evaluate instal-
lation and connection solutions. Furthermore, ZAPI is available to develop new
SW or HW solutions to improve the safety of the machine, according to customer
requirements.
Machine manufacturer holds the responsibility for the truck safety features and
related approval.