Zapi EPS-AC, Руководство по эксплуатации и инструкция пользователя, Страница: 32 / 52

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8) AUX FUNCTION 4
Has the same purpose as the previous parameter. The only difference is the aux
function 4 varies the value of the steering speed when the hand-wheel is turning
slowly.
10.5 PARAMETERS IN SET MODEL 1 (TACHO-GENERATOR OR STEPPER
MOTOR AND AUTOMATIC CENTERING)
All the parameters in the section 10.3 are adopted also for the tacho-generator (or
stepper motor) and automatic centering model. To this previous list here we have to
add the following parameters:
1) KP
Used for the automatic centering set up. It modifies the static precision of the
position control loop. To obtain precise centering increase the KP value. If
overshoot becomes evident, try to lower the KP value.
- Level 0 is for less precise centering.
- Level 9 is for very precise steering (but "busy").
Intermediate levels are for proportionally increasing centering precision.
2) POS. ACCURACY
Used for automatic centering set up. It has the same KP function but it was
introduced to increase the resolution of the static precision. To obtain precise
centering increase the POS. ACCURACY value. If overshoot becomes evident, try
to lower the POS. ACCURACY value.
- Level 0 is for less precise centering.
- Level 9 is for very precise centering (but "busy").
Intermediate levels are for proportionally increasing centering precision.
3) PURSUIT RAMP
Used for automatic centering set up. It decreases the amount of time it takes to
complete an automatic centering operation.
- Level 0 is for an automatic centering carried out with a motor frequency of
SAT.FREQ/5.
- Level 9 is for an automatic centering carried out with a motor frequency of
SAT.FREQ.
Intermediate levels are for proportional frequency changes.
4) DESENSIBILIZAT
Used for automatic centering set up. It slows down the MDU in the region close to
the straight ahead position.
- Level 0 is for a large slowing down quasi-centered MDU.
- Level 9 is for a no slowing down quasi-centered MDU.
Intermediate levels are for proportionally slowing down changes. The close to
straight position slowing down should reduce the MDU overshoot in an automatic
centering operation.