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AFCZP0BC- COMBIACX & ACEX - User Manual
3 SPECIFICATION FOR THE INPUT DEVICES
FILLING UP THE INSTALLATION KIT
3.1 Digital inputs
COMBIACX / ACEX digital inputs work in the voltage range [-Batt; +Batt]. Related
command devices (microswitches) must be connected to +BATT (typically to key
voltage).
Pull-down resistance to –Batt is built-in.
Functional devices (like FW, BACK, LIFT, DESCENT, HORN, H&S, TILLER, BELLY
switches) are Normally Open; so related function becomes active when the
microswitch closes.
Safety devices (like CUTBACK switches) are Normally Closed; so related function
becomes active when the microswitch opens.
The DI11 and DI12, which are not available in the Sense Coil version, are activated
closing the external microswitch to –Batt.
3.1.1 DI0 ÷ DI10 technical details – 24 V system
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Switching threshold: 4V [±0,5V]
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Input impedance:
4,5kOhm [±0,5kOhm]
3.1.2 DI0 ÷ DI10 technical details – 36/48 V system
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Switching threshold: 4,2V [±0,5V]
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Input impedance:
13,5kOhm [±1kOhm]
3.1.3 Microswitches
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It is suggested that microswitches have a contact resistance lower than 0,1Ohm
and a leakage current lower than 100µA.
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When full load connected, the voltage between the key switch contacts must be
lower than 0.1V.
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If the microswitch to be used has different characteristic, it is suggested to
discuss them and their application with Zapi technicians.
3.2 Analog unit
The analog input can be connected to an accelerator unit if the Zapi CAN or serial
tiller is not used.
The accelerator unit can consist of a potentiometer or an Hall effect device.
It should be in a 3-wire configuration. The potentiometer is supplied through CNC#8.
Potentiometer output signal must be input to CPOT1 (CNC#4) signal range is from 0
to 10V.
The negative supply of the potentiometer has to be taken from NPOT (CNC#3).
Potentiometer value should be in the 0.5 - 10 kOhm range; generally, the load
should be in the 1.5mA to 30mA range. Faults can occur if it is outside this range.
The standard connection for the potentiometer is the one in the Left side of next
figure (potentiometer on one end at rest) in combination with a couple of Travel
demand switches . On request it is also possible the handling in the Right side of
next figure (potentiometer in the middle at rest) still in combination with a couple of
Summary of Contents for ACEX
Page 27: ...AFCZP0BC COMBIACX ACEX User Manual Page 27 81 8 DRAWINGS 8 1 Mechanical drawing COMBIACX...
Page 28: ...Page 28 81 AFCZP0BC COMBIACX ACEX User Manual 8 2 Mechanical drawing ACEX...
Page 29: ...AFCZP0BC COMBIACX ACEX User Manual Page 29 81 8 3 Connection drawing COMBIACX...
Page 30: ...Page 30 81 AFCZP0BC COMBIACX ACEX User Manual 8 4 Connection drawing ACEX...
