Description

Instrument pin description

CNA connector: Molex Minifit 6 pins

A1 -BATT Power supply negative reference

A2 -BATT Power supply negative reference

A3 CAN H Can signal high

A4 CAN L Can signal low

A5 HEATER+ Heater positive power supply. This input must be

connected to +BATT before the key switch.

A6 KEY Key input

CNB connector: Molex Minifit 4 pins

B1 NAUX Auxiliary load output. The external load is driven to –

Batt.

B2 PAUX Auxiliary load positive supply. This output is internally

connected to the key through a diode (cathode

connected to CNB#2)

B3 CANT Internally connected to CNA#4 through a Can-Bus 120

Ohm termination resistance. Connecting CNB#3 to

CNA#3 the termination resistance is inserted between

CAN L and CAN H.

B4 +BATT Power supply positive reference. This input must be

connected to +BATT before the key switch. CNB#4

supplies Graphic Smart Display also after the Key is

switched OFF for a programmable service time.

CNC connector: Molex Minifit 12 pins

C1 FLASH BOOT This input is used for the software download through

the microcontroller Asynchronous Serial Interface. To

connect the input to CNC#6 during this operation

otherwise leave it open.

C2 NCLRXD Serial reception negative

C3 PCLTXD Serial transmission positive

C4 NCLTXD Serial transmission negative

C5 GND Console negative power supply

C6 +12 Console positive power supply

C7 AN/DI 1 Analogue/digital input #1

C8 AN/DI 2 Analogue/digital input #2

C9 AN/DI 3 Analogue/digital input #3

C10 AN/DI 4 Analogue/digital input #4

C11 NPOT Power supply negative reference. It is used as potentiometer negative.

C12 PAN-IN Potentiometer positive: 12 V / 5 V output; keep load > 1kW / 0,5 KW

Number associated in canbus net MODULE

01 ——  SICOS

02——-TRACTION

03——- TRACTION MASTER

04——-TRACTION SLAVE

05——- PUMP

06——- EPS-AC

09——– MHYRIO/HVC

16——— GRAPHIC SMART DISPLAY

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