AFFZP0BB – ACE3 – User Manual Page – 27/139
5.4 Other analog control unit
5.4.1 Standard version
1) Input A10 is an analog input, whose typical application is as reference for
proportional braking. The driving potentiometer should be in a three-wire
configuration, its resistance should be within the 0.5 – 10 k range, the current
within the 1.5 – 30 mA range and the voltage signal from 0 to 10 V.
2) Connections A23 (PTH) is used for a motor thermal sensor. It can be digital
(on/off sensor, normally closed) or analog.
5.4.2 Premium version
Three additional analog inputs are available:
1) Input B2 is an analog input, whose typical application is as reference for the
control of the proportional valve.
2) Input B10 is an analog input, whose typical application is as steering
reference.
3) Input B3 is an analog input, without a predefined function.
Each driving potentiometer should be in a three-wire configuration, its resistance
should be within the 0.5 – 10 k range, the current within the 1.5 – 30 mA range
and the voltage signal from 0 to 10 V.
5.5 Speed feedback
Motor control is based upon the motor speed feedback (sensored control). The
speed transducer is an incremental encoder, with two phases shifted by 90°.
The encoder can have the following features:
- Power supply: 5 V or 12 V.
- Electric output: open collector (NPN) or push-pull.
- Standard output (channel A and channel B, 90° shifted).
For more details about encoder installation also refer to paragraph 6.2.5.
4 Note: encoder resolution and motor poles pair that the controller is set to handle are
displayed in the home page of the PC CAN Console or of the Smart Console, as:
A3MT2B ZP1.13
Where:
A3MT = ACE3 traction controller (M stands for “Master μC”, S for “Slave μC”)
(A3MP = ACE3 pump controller)
2 = poles pair number
B = 64 pulses/rev
Encoder resolution (in pulses/rev ) is given by the last letter as:A = 32, B = 64, C =
80, D = 128
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