Zapi AC-2 User Manual download pdf (Page 24)

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connected to -Batt.

A14 ENCB Incremental encoder phase B input.

A15 ENC GND Encoder negative power supply.

A16 NLC Main contactor coil output. The coil is driven to

negative reference.

A17 PLC/PAUX Positive of the LC and Auxiliary coil.

A18 NAUX Auxiliary coil output. The coil is driven to negative

reference.

A19 SAFETY OUT In the COMBI configuration it is connected to SAFETY

IN (CNA#11) of traction controller.

It can also be used to drive an external load to

negative reference when the pump motor is driven.

The maximum current load is 1 A. In case of inductive

load it is suggested to use a free-wheeling diode

across the load (with cathode 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.

6.3 Description of power connections

View of the power bars:

-BATT Negative of the battery.

+BATT Positive of the battery.

U; V; W Connection bars of the three motor phases; follow this

sequence and the indication on the motor.

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 82 83

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Zapi AC-2 User Manual Page 24