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AFDZP0BA – VCM Zapi 2uC - User Manual
drops described before (higher diameter means lower impedance), so in this last
example the cable between the minus of the Battery and the common ground
point (pointed by the arrow in the image) must be dimensioned taking into
account thermal and voltage drop problems.
6.2.2 Wirings: I/O connections
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After crimping the cable, verify that all strands are entrapped in the wire
barrel.
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Verify that all the crimped contacts are completely inserted on the connector
cavities.
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A cable connected to the wrong pin can lead to short circuits and failure;
so, before turning on the truck for the first time, verify with a multimeter the
continuity between the starting point and the end of a signal wire.
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For information about the mating connector pin assignment see the
paragraph “description of the connectors”.
6.2.3 Insulation of truck frame
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As stated by EN-1175 “Safety of machinery – Industrial truck”, chapter 5.7,
“there shall be no electrical connection to the truck frame”. So the truck
frame has to be isolated from any electrical potential of the truck power
line.
6.3 Protection features
6.3.1 Hardware
Protection
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Battery polarity inversion
The board is protected against reverse battery polarity
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Overvoltage
All input/output pins can withstand, for a short time, an applied voltage up to
+B.
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Undervoltage
The VCM is fully operative for key voltages down to 11V
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Connection Errors
All input/output pins are protected against:
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short circuit to positive battery voltage
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short circuit to negative battery voltage.
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Open-circuit and cable disconnection
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External agents:
The controller is protected against dust and the spray of liquid to a degree of
protection meeting IP65.
6.3.2 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. The
safety of the machine is strongly related to installation; length, layout and
