Zapi AC-2, Руководство пользователя

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function request (for ex.: running request) is made.
2.3.2 Accelerator unit
The accelerator unit can consist of a potentiometer or an Hall effect device.
It should be in a 3-wire configuration.
CPOT (E1) signal ranges from 0 to 10 V.
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), 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.
2.3.3 Other analog control unit
1) Input E8 is an analog input, whose typical application is for proportional
braking. It should be in a 3 wire configuration. Potentiometer value should be
in the 0.5-10 k
Ω
range. Generally, the load should be in the 1.5 mA to 30 mA
range.
The CPOTB (E8) signal range is from 0 to 10 V.
2) Connections F6 (PTHERM) and F12 (NTHERM) are used for a motor thermal
sensor. It can be digital (on/off sensor, normally closed) or analog. See also
ADEZP0AE - AC-2 INVERTER - User Manual Page - 7/64