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9 SETTING THE STEERING
Use the ZAPI hand set to adjust the manual steering settings.
9.1 TACHO-GENERATOR OR STEPPER MOTOR CONTROLLED STEERING
The following procedure should be used only after "One Shot Installation Procedure" in
Section 7 is completed. Carry out the procedure in the following sequence.
1) Use the hand set to specify the steering is tacho-generator type using the SET
MODEL setting (see 10.9).
2) Adjust SET BATTERY TYPE to the battery voltage in the truck using the hand set
(see 10.8.6).
3) Regulate the maximum frequency to the motor rated frequency. Use the hand set
adjustment SET SATURATION FREQ (see 10.8.7).
4) Regulate the SPEED LIMIT for steering on the hand set. Higher values cause the
MDU to turn faster (see 10.4.1).
5) Adjust the slow steering responce using the SENSIBILITY setting on the hand set. A
higher value causes faster responce (see 10.4.2).
Note:
Low settings of the SPEED LIMIT result in almost no steering responce when turning
the steering wheel al low speed. To avoid this problem increase the SENSIBILITY
setting.
9.2 AUTOMATIC CENTERING
1) For automatic centering operation it is necessary to adjust SET MODEL to level 1.
When an automatic centering request on the input Pin #10 of CNB connector is
recognized an automatic MDU alignment will start.
2) Adjust the steer angle centering precision using KP and POSITION ACCURACY
parameters on the hand set. The first is for coarse regulation, the second is for fine
regulation. Higher value of these parameters increase the precision, but make
steering "busy" with dither.
3) Use the hand set SET STEER 0-POS (see 10.8.11) to adjust the steer angle
feedback pot for straight steering MDU.The setting may be adjusted up and down in
5mV increments from the 2.5V default voltage. Test the results by driving the truck
forward and reverse with a centered MDU. Watch for straight travel.
4) Use PURSUIT RAMP on the hand set to adjust the automatic centering speed (see
10.5.3).
5) Use DESENSIBILIZAT on the hand set to adjust the automatic centering speed
closely the straight ahead MDU position (see 10.5.4).
Содержание EPS-AC
Страница 9: ...Page 9 3 MECHANICAL SPECIFICATIONS...
Страница 13: ...Page 13 6 POWER CONNECTION DIAGRAM Note Reversing Battery positive and negative will damage the unit...
Страница 14: ...Page 14 6 1 ELECTRICAL DRAWING 6 1 1 Tacho generator steering...
Страница 15: ...Page 15 6 1 2 Stepper motor steering...
Страница 16: ...Page 16 6 1 3 Tacho generator steering with automatic centering...
Страница 17: ...Page 17 6 1 4 Stepper motor steering with automatic centering...
Страница 28: ...Page 28 10 1 MANUAL MODE STEERING OPTION HAND SET FUNCTION MAP...
Страница 29: ...Page 29 10 2 MANUAL MODE STEERING OPTION AND AUTOMATIC CENTERING HAND SET FUNCTION MAP...