Zapi DUALACE2 NEW GENERATION - 4.3 Internal Connector; 4.4 External Devices

Page 38/169 AFNZPxxx – DUALACE2 NEW GENERATION – User Manual
DUALBLE2 NEW GENERATION with Hall sensors
Pin
Type
Name
Description
A19
Input
SH3_L
Third left-hand side Hall sensor.
A20
Input
SH3_R
Third right-hand side Hall sensor.
A21
Output
NSENS_R
Negative supply for the right-hand side Hall sensors, the right-
hand side thermal sensor and potentiometers.
4.3 Internal connector
Pin
Type
Name
Description
1
-
-
Not used: it can be unconnected.
2
Input
NCLRXD
Negative serial reception.
3
Output
PCLTXD
Positive serial transmission.
4
Output
NCLTXD
Negative serial transmission.
5
Output
GND
Negative console power supply.
6
Output
+15
Positive console power supply.
7
Input
FLASH
It must be connected to pin 8 for the Flash memory
programming.
8
Input
FLASH
It must be connected to pin 7 for the Flash memory
programming.
4.4 External devices
4.4.1 Key input
KEY input A3 (A1) is generally connected to the vehicle start key switch. It
supplies battery voltage to the logic circuitry and it also pre-charges the DC-link
capacitors at key-on, before main contactor closes. The KEY voltage is
monitored.
 Note: external loads connected to the power terminal +B, such as proximity
switches, load the internal PTC resistor along the key input path, with the
consequence that the pre-charge voltage may be lower than expected.