Zapi AC-2 User Manual download pdf (Page 23)

AF2ZP0CE - ACE2 350/450 - User Manual Page - 23/83

connected to +Batt)

A20 CAN-L Low level CAN-BUS voltage I/O.

A21 CAN-H High level CAN-BUS voltage I/O.

A22 PTHERM Input for motor temperature sensor. It is possible to

use a digital or analogue (PTC) sensor.

A23 NTHERM -Batt.

B1 PCLRXD Positive serial reception (Not used: it can be

disconnected).

B2 NCLRXD Negative serial reception.

B3 PCLTXD Positive serial transmission.

B4 NCLTXD Negative serial transmission.

B5 GND Negative console power supply.

B6 +12 Positive console power supply.

B7 FLASH It must be connected to B8 for the Flash memory

programming.

B8 FLASH It must be connected to B7 for the Flash memory

programming.

6.2 Connectors of the logic - Pump configuration

A1 KEY Connected to the power supply through a microswitch

(CH) with a 10 A fuse in series.

A2 PPOT Potentiometer positive: 12 V / 5 V output; keep load >

1 kohm / 0.5 kohm.

A3 CPOT Lifting potentiometer wiper.

A4 LIFT ENABLE Input for potentiometer lifting enable input; it is active

HIGH.

A5 SPEED1 Input for first speed request; it is active HIGH.

It can also be used as NPOT (potentiometer negative

reference) with the PEDAL WIRE KO diagnosis

implemented.

A6 SEAT SEAT input; it must be connected to the SEAT

microswitch; it is active when connected to -BATT.

A7 ENCA Incremental encoder phase A input.

A8 PENC Incremental encoder positive supply 12 V / 5 V

A9 -BATT Negative power supply. It is used as NPOT, without

PEDAL WIRE KO diagnosis, for lifting potentiometer

A10 SPEED2 Input for second speed request; it is active HIGH.

A11 SAFETY IN If not connected to -Batt the AUX1 and AUX2 coil

power output will be disabled. It can also be used as a

general purpose digital input.

A12 CAN-T If it is connected with A21 (CAN H) it introduces the

120 Ohm termination resistance between CAN-L and

CAN-H.

A13 SPEED3 Input for third speed request; it is active when

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Zapi AC-2 User Manual Page 23

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