Zapi COMBI AC1, Руководство пользователя, Страница: 10 / 86

Also in AmpSeal version a third analog input is available in CNA#17 (a digital
input is lost).
These other two analog inputs are checked by both microcontrollers too.
3.4 Analog motor thermal sensor input
Input CNA#12 in the AmpSaab version [CNA#22 in AmpSeal connector] is an
analog input to receive an analog thermal sensor signal to measure the Traction
Motor Winding Temperature. The analog device installed in the motor has to be
specified, in order to insert the correct look-up table in the software. A digital
device can also be used.
3.5 Speed feedback
The motor control is based upon the motor speed feedback (sensored software).
The speed transducer is an incremental encoder, with two phases shifted at 90°.
The encoder can be of different types :
- power supply: +12V
- electric output: open collector ( NPN or PNP), push-pull.
COMBI AC1 could also be used without encoder, sensorless control.
This solution has to be discussed with Zapi technicians.
4
Note: The encoder resolution and the motor poles pair (the controller can
handle), is specified in the home page display of the handset showing following
headline:
CA1S2AE ZP1.07
That means:
CA1S= COMBIAC1 traction controller
2 = motor’s poles pair number
A = 32 pulses/rev encoder
E = identifier for an extended memory hardware release inside
The encoder resolution is given by the second-last letter in the following list:
A = 32 pulses/rev
K = 48 pulses/rev
B = 64 pulses/rev
C = 80 pulses/rev
Page - 10/86 AEQZP0BA – COMBI AC1 - User Manual