AE0ZP0EC - AC-0 SSL SENSORED - User Manual Page - 9/100
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 0.5-10 kΩ range.
Generally, the load should be in the 1.5 mA to 30 mA range.
The CPOTB (CNA#18) signal range is from 0 to 10 V.
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).
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: +5 V or +12 V
- electric output: open collector ( NPN or PNP), push-pull.
The wished resolution must be specified when ordering the controller. The
suggested resolution is from 32 pulses/rev up to 64 pulses/rev.
For more details about encoder installation see also chapter 4.2.5.
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:
AC0T2BE ZP1.10
That means:
AC0T= AC-0 traction controller
(AC0P= AC-0 pump controller)
2= poles pair number
B= 64 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
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