Description

CNA external connector
A1 EV1 Output of the protected ON/OFF electrovalve driver; 1,5 A maximum continuous current (driving to –Batt). Built-in freewheeling diode to B2. This output is activated when the 1ST function (input A12) is request.

A2 EV3 Output of the protected ON/OFF electrovalve driver; 1,5 A maximum continuous current (driving to –Batt). Built-in freewheeling diode to B2. This output is activated when the LIFT function (input A5) is request.

A3 NAUX2 Auxiliary output. Internal 330R resistance in series to the driver (driving to –Batt). Max continuous current: 35mA. Typical function: to drive a led. If the BATTERY CHECK option is different than zero, this output blinks with a 1
sec. period when the calculated battery charge is between 10% and 30%, and it stays on when the calculated battery charge is < = 10%.

A4 DI5 Input of the switch DI5. The input is activated when it is connected to +Batt. The default function is the controller “HORN” input, closing the switch the horn output is activated.

A5 DI7 Input of the switch DI7. The input is activated when it is connected to +Batt. The default function is the controller “LIFT” enable input.

A6 DI9 Input of the switch DI9. The input is activated when the external switch is opened. The default function is the controller “PUMP CUTBACK” input, opening the switch pump speed is reduced.

A7 DI11 Input of the switch DI11. The input is activated when the external switch is opened to ground. The default function is the controller “CUTBACK1” input, opening the switch truck speed is reduced. In the Sense Coil version this input is connected to the AC motor sense coil.

A8 EV2 Output of the protected ON/OFF electrovalve driver; 1,5 A maximum continuous current (driving to –Batt). Built-in freewheeling diode to B2. This output is activated when the 2ND function (input A13) is request.

A9 NAUX1 Auxiliary output. Internal 330R resistance in series to the driver (driving to –Batt). Max continuous current: 35mA. Typical function: to drive a led. This output blinks with a 1
sec. period when a warning is displayed by the controller. It also blinks with a 0.5 sec. period when an alarm is displayed when no alarm are displayed, this output is OFF.

A10 GND This is the ground of the logic board.

A11 DI6 Input of the switch DI6. The input is activated when it is connected to +Batt. The default function is the controller“LOWER” enable input.

A12 DI8 Input of the switch DI8. The input is activated when it is
connected to +Batt. The default function is the controller
“1ST” input: the pump motor turn at a defined speed.

A13 DI10 Input of the switch DI10. The input is activated when it is
connected to +Batt. The default function is the controller
“2ND” input: the pump motor turn at a defined speed.

A14 DI12 Input of the switch DI12. The input is activated when the
external switch is opened to ground. The default function
is the controller “CUTBACK2” input, opening the switch
truck speed is reduced. In the Sense Coil version this
input is connected to the AC motor sense coil.

CNB external connector

B1 PEB This pin outputs the positive supply (equal to +Batt) of the
electromechanical brake coil. Depending on hardware
configuration this pin can be controlled by the
microcontroller or tied to the B2 input or to the C6 input.
See connection drawing for more details.

B2 PEV Connect the positive supply of all electrovalves (EV1,
EV2, EV3, LOWER EVP, HORN OUT) to this pin. Take
the positive supply immediately after main contactor.

B3 NEVP Output of the lower proportional electrovalve driver
(driving to –Batt). Built-in freewheeling diode to B2.

B4 DI3 Input of the switch DI3. The input is activated when it is
connected to +Batt. The default function is the controller
“FORWARD” request input, closing this input truck moves
in forward direction.

B5 NEB Electro mechanic brake coil driver output; PWM
controlled; 2.5A maximum continuous current (driving to –
Batt). Built-in freewheeling diode to B1.

B6 NLC Min Contactor coil driver output; PWM controlled; 1A
maximum continuous current (driving to –Batt). Built-in
freewheeling diode.

B7 HORN Negative of the protected horn electrovalve driver (driving
to –Batt). Built-in freewheeling diode to B2.

B8 DI4 Input of the switch DI4. The input is activated when it is
connected to +Batt. The default function is the controller
“REV” request input, closing this input truck moves in
backward direction.

CNC external connector

C1 +KEY Input of the key switch signal.

C2 DI1 Input of the switch DI1. The input is activated when it is
connected to +Batt. The default function is the controller
“BELLY” input, closing the switch quick inversion function
is activated.

C3 NPOT Potentiometers negative reference (GND).

C4 CPOTTR Accelerator potentiometer wiper input.

C5 CANH High level CAN-BUS voltage I/O.

C6 DI0 Input of the switch DI0. The input is activated when it is
connected to +Batt. With the logic hardware properly
configured it can be used to supply the EB and MC
positive voltage. The default function is the controller
“TILLER” input.

C7 DI2 Input of the switch DI7. The input is activated when it is
connected to +Batt. The default function is the controller
“H&S” (Hard & Soft) request input, closing this input truck
performances are modified.

C8 PPOT Potentiometers positive supply. Hardware has to be
configured to output +12V or +5 V.

C9 CPOTL Lift/Lower potentiometer wiper input.

C10 CANL Low level CAN-BUS voltage I/O.

CND external connector

D1 ENC A Traction motor encoder phase A.

D2 PENC Encoder Positive Supply. Hardware has to be configured
to output +12V or +5 V

D3 PTHERM Traction motor thermal sensor input. The internal pull-up
is a fixed 2mA (Max 5V) source current.

D4 ENCB Traction motor encoder phase B.

D5 NENC Negative of the Encoder.

D6 NTHERM Negative reference (GND) for the motor thermal sensor.

CNE internal connector

The connector used is a 8 way STRIP
E1 Not used Internally disconnected.

E2 NCLRXD Negative serial reception pin.

E3 PCLTXD Positive serial transmission pin.

E4 NCLTXD Negative serial transmission pin.

E5 GND Serial communication negative reference.

E6 +12 +12V serial communication supply.

E7 FLASH BOOT To connect this pin to GND (E8) for software download
via serial communication.

E8 GND Serial communication negative reference.

This connector cannot be reached without removing the cover. It is used by Zapi for
software download with Zapi Flasher, for communicating with a Zapi Handset or a
lap-top, for controller setup and for diagnosis.

DESCRIPTION OF POWER CONNECTIONS

View of the power bars:

– B Negative of the battery.

+ B Positive of the battery.

– P Output of the Pump Motor (COMBIACX only).

U; V; W Connection bars of the three motor phases; follow this sequence and the
indication on the motor.

Connection drawing COMBIACX  

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