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EPS Inverter
STEPPER MOTOR
Feedback sector
Feedback ENC
Temperature
Motor temperature
Frequency
SAT. FREQ HZ
Motor voltage
Motor current
ENC speed
Endstroke CW
Endstroke ACW
CW limit level
Voltage value with 2 decimal digit. Measurement of the stepper motor speed with
sign in the range 0 to 5 Vdc.
Voltage value with 2 decimal digit. Measurement (scaled in the range 0 to 5 Vdc) of
the actual state of the toggle switches. The steered wheel revolution is divided into 4
quadrants (sectors) corresponding to two toggle switches configurations :
The steered wheel is in the 1ST sector (FEEDBACK SECTOR to 3.13V) when the
configuration of the toggle switches is the one expected for a steered wheel angle in
the range 0 to 90 degrees.
The steered wheel is in the 2ST sector (FEEDBACK SECTOR to 4.39V) when the
configuration of the toggle switches is the one expected for a steered wheel angle in
the range 90 to 180 degrees.
The steered wheel is in the 3RD sector (FEEDBACK SECTOR to 0.62V) when the
configuration of the toggle switches is the one expected for a steered wheel angle in
the range -180 to -90 degrees.
The steered wheel is in the 4TH sector (FEEDBACK SECTOR to 1.88V) when the
configuration of the toggle switches is the one expected for a steered wheel angle in
the range -90 to 0 degrees.
Voltage value with 2 decimal digit. Measurement (scaled in the range 0 to 5 Vdc) of
the position of the feedback encoder connected to CNB#7 and CNB#8.
Degrees. Temperature of the controller base plate.
Degrees. Temperature of the motor windings measured with the thermal sensor
inside the motor and connected to CNB#3.
Hertz value with 2 decimal digit. This is the frequency applied to the steering motor.
Hertz value with 2 decimal digit. This is a real time magnetic flux measurement :
Vbattery/ SAT.FREQ HZ provides real time the linked flux in the motor. The flux in
the motor is modulated from 75% to 100% of the maximum flux.The maximum flux
is Vbattery/SET SAT FREQ. The minimum flux is Vbattery/(1.33*SET SAT FREQ).
When the motor is loaded, SAT. FREQ HZ is equal to SET SAT FREQ; when the
motor is lightened the flux reduces and SAT. FREQ HZ increases up to 1.33*SET
SAT FREQ.
It is a percentage.
100% means the sine waves in the motor have the maximum PWM amplitude.
Ampere value. Root Mean Square value of the line current in the motor.
Hertz value with 2 decimal digit. This is the speed of the motor measured with the
encoder on the motor shaft
Provides real time the active state (ON) or not of the CW toggle switch (connected to
CNA#3). It is On when CNA#3 is low.
Provides real time the active state (ON) or not of the CCW toggle switch (connected
to CNA#2). It is On when CNA#2 is low.
When the maximum angle limitation via feedback sensors is enabled (option LIMIT
DEVICE to ON) and the FEEDBACK ENC overtakes the superior limit for the
steered wheel angle limitation, the steered wheel angle will be limited and CW LIMIT
LEVEL turns ON (active).
Description
7-47
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