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AESZP0BA – AC1 SSL SENSORED - FREE VERSION - User Manual Page - 9/73

3.3 Other analog control unit

Input CNA#18 is an analog input, whose typical application is a proportional

command to enable a lifting and a lowering proportional Valves. It is possible to

use this input for an alternative function is a proportional braking. It should be in a

3 wire configuration. Potentiometer value should be in the 0.5-10KΩ range.

Generally, the load should be in the 1.5mA to 30 mA range.

The CPOTB (CNA#18) signal range is from 0 to 10V.

3.4 Analog motor thermal sensor input

Input CNA#13 is an analog input to receive an analog Thermal Sensor Model

Philips KTY84-130 to measure the Motor Winding Temperature. This is a PTC

polarized two terminals device: connect the positive end to CNA#13 and a the

negative end to a minus battery voltage (e.g. CNA#8 or CNA#12).

3.5 Speed feedback

The motor control is based upon the motor speed feedback. The speed

transducer is an incremental encoder, with two phases shifted at 90°. The

encoder can be of different types:

- power supply: +5V or +12V

- electric output: open collector ( NPN or PNP), push-pull.

The wished resolution must be specified when ordering the controller. The

suggested resolution is from 32pulses/rev up to 64pulses/rev.

For more details about encoder installation see also chapter 8.4.

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

something like:

AC1T2AE ZP1.07

That means:

AC1T= AC1 traction controller

2= 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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 72 73

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Zapi COMBI AC1 Manual de usuario Pagina 9