Page – 26/155 AF6ZP0CA – COMBIAC0 & ACE0 2uC – User Manual
Connector position
A13, A14.
U It is important to verify the wiring and to ensure that encoder signals are
not disturbed by the motor currents or by the electric motor brake.
For more details about encoder installation see also paragraph 5.2.4.
4 Note: encoder resolution and motor pole pairs are specified in the Console home
page, which shows a headline like the following:
A0MT2B ZP1.13
Where:
A0MT: ACE0 traction controller (M stands for “Master μC”, S for “Slave μC”)
(A0MP: ACE0 pump controller)
2: motor poles pair number
B: 64 pulses/rev encoder
Encoder resolution is given by the last letter as:
A: 32 pulses/rev
B: 64 pulses/rev
C: 80 pulses/rev
D: 128 pulses/rev
Encoder resolution can be changed through the dedicated parameters. See
paragraph 8.2.5.
4.4.6 MC output
Main (or line) contactor is operated through an open-drain PWM voltage-
controlled output on pin NMC A12.
In order to utilize the built-in free-wheeling diode, the coil must be supplied with
the key voltage, like pin KEY A10 (see chapter 3.2).
A special hardware configuration allows to utilize a built-in free-wheeling diode
connected to pin DI0 A1.
In case the vehicle design does not allow usage of the built-in freewheeling
diode, i.e. if the return path integrity cannot be guaranteed in all situations, an
external diode must be applied between the coil terminals.
Output features
1 A continuous current (holding).
2 A peak (pulling current) for a maximum of 200 ms.
Individual hardware for detection of: shorted driver, open driver, open coil.
1 kHz default PWM frequency.
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