Description Of The Connectors; Connectors Of Ace3 Standard - Traction Configuration; Cna External Connector - Zapi ACE3 User Manual

6 DESCRIPTION OF THE CONNECTORS

6.1 Connectors of ACE3 STANDARD - Traction configuration

6.1.1 CNA external connector

A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
AFFZP0BA – ACE3 - User Manual
KEY Connected to the power supply through a microswitch
(CH) with a 10 A fuse in series.
PPOT Potentiometer positive: 12 V / 5 V output; keep load >
1 kohm / 0.5 kohm.
CPOT Accelerator potentiometer wiper.
FORW Forward direction request input. It must be connected
to the forward direction microswitch, active high.
REV Backward direction request input. It must be connected
to the backward direction microswitch, active high.
SEAT SEAT input; it must be connected to the SEAT
microswitch; it is active when connected to -BATT.
ENCA Incremental encoder phase A input.
PENC Incremental encoder positive supply 12 V / 5 V
-BATT Negative power supply. It is used as NPOT, without
PEDAL WIRE KO diagnosis, for acceleration
potentiometer and brake potentiometer
CPOTBR Brake potentiometer wiper.
PB Brake request input. It must be connected to the brake
pedal microswitch, active high.
CAN-T1 If it is connected with A21 (CAN H1) it introduces the
120 Ohm termination resistance between CAN-L1 and
CAN-H1.
SR/HB Speed reduction (handbrake) input. Active with switch
opened. Not active with switch closed to -Batt.
ENCB Incremental encoder phase B input.
ENC GND Encoder negative power supply.
NLC Main contactor coil output. The coil is driven to
negative reference.
PEB Connect the positive supply of electrovalves (EB and
EVP) to this pin. Take the positive supply immediately
after the main contactor.
NEB Electro mechanic brake coil output. The coil is driven to
negative reference. Built-in freewheeling diode to A17.
NEVP Output of the proportional electrovalve driver ( driving
to –Batt). Built-in freewheeling diode to A17.
CAN-L1 Low level CAN-BUS 1 voltage I/O.
CAN-H1 High level CAN-BUS 1 voltage I/O.
NCAN CAN Bus negative supply.
PTHERM Input for motor temperature sensor. It is possible to
use a digital or analogue (PTC) sensor .
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