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Potentiometer value should be in the 0.5 ÷ 10 kohm range; generally, the load
should be in the 1.5 mA to 30 mA range. Faults can occur if it is outside this
range.
The Procedure for automatic potentiometer signal acquisition is carried out using
the Console. This enables adjustment of the minimum and maximum useful
signal level (PROGRAM VACC function, see Chapter 9.4), in either direction.
This function is unique when it is necessary to compensate for asymmetry with
the mechanical elements associated with the potentiometer, especially relating to
the minimum level. The sequence of procedure is described in the programming
console manual.
The two graphs show the output voltage from a non-calibrated potentiometer with
respect to the mechanical “zero” of the control lever. MI and MA indicate the point
where the direction switches close. 0 represents the mechanical zero of the
rotation.
The Left Hand graph shows the relationship of the motor voltage without signal
acquisition being made. The Right Hand Graph shows the same relationship after
signal acquisition of the potentiometer.
3.4 Other analog control devices
Other devices, whose output is an analog signal, can be connected to the
inverter
1) Input CPOTB (A21 Ampseal connector, A17 Amp Saab connector, A8 Molex
Minifit) is another analog input, whose typical application is to read a signal
from a braking pedal (proportional braking).
The external device should be in a 3 wire configuration, like CPOT.
Potentiometer value should be in the 0.5 – 10 kohm range. Generally, the
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ADWZP0DF - AC3 FLASH / AC4 FLASH INVERTER - User Manual