Zapi ADPZP0CC, Руководство пользователя, Страница: 11 / 36

ADPZP0CC - MHYRIO FLASH CONTROLLER - User Manual Page - 11/36
3.3.2 Safety Features
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ZAPI controllers are designed according to the prEN954-1 specifications for
safety related parts of control system and to UNI EN1175-1 norm.
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The safety of the machine is strongly related to installation; length, layout
and screening of electrical connections have to be carefully designed.
ZAPI is always available to cooperate with the customer in order to evaluate
installation 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.
On the connection pins A13 and B3 is output a positive coming from the valves
positive voltage but controlled with an electronic high-side switch. This positive
can be used to feed one or more valves involved in safety problems. In this way
MHYRIO FLASH opens not only the negative side of the valve coil, but also the
positive one.
The positive switch is tested by the microprocessor at every key switching on, by
feedbacking this output voltage to the µC A/D converter.
Furthermore, it is possible to input a positive for valves, independent by the
Mhyrio Flash supply, to input B6. It is strongly suggested that this positive
is cut by a device controller by another intelligent module, which is thus
able to open the valves positive in case of Mhyrio Flash failures or
malfunctioning.
Thus the more safe solution is:
- PEV supplied to B6, controlled by another intelligent module.
- Positive to group 1 valves (lifting-lowering), taken by outputs A13 and
B3.
3.4 EMC
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EMC and ESD performances of an electronic system are strongly
influenced by the installation. Special attention must be given to the
lengths and the paths of the electric connections and the shields. This
situation is beyond ZAPI's control. Zapi can offer assistance and
suggestions, based on its years experience, on EMC related items.
However, ZAPI declines any responsibility for non-compliance,
malfunctions and failures, if correct testing is not made. The machine
manufacturer holds the responsibility to carry out machine validation,
based on existing norms (EN12895 for industrial truck; EN50081-2 for other
applications).
EMC stands for Electromagnetic Compatibility, and it represents the studies and
the tests on the electromagnetic energy generated or received by an electrical
device.