Zapi EPS-AC0, User Manual, Page: 83 / 95

AEMZP0BA - EPS-AC0 - User Manual Page - 83/95
Higher NUMBNESS setting results in higher numbness of the steering at low
steered wheel angle. NUMBNESS to Level 0 results in a linear relationship between
the command and the steered wheel angle (no sensitivity reduction in straight
ahead).
13.4 Special Debugging and Troubleshooting system
Eps-ac0 provides a special adjustment (DEBUG OUTPUT) to facilitate the
troubleshooting. Some alarms may be due to many different causes that are difficult
to catch. In particular, the alarms in which the steered wheel does not pursuit the
commanded positions (FB POT LOCKED, FB SENSOR LOCK, MOTOR LOCKED,
POSITION ERROR) may be due to a mechanical fault or to a failed sensor or to a
problem in the motor. It is difficult to find the root for the problem in the short time
before the alarm occurs. For this reason the eps-ac0 provides a method to
temporary inhibit these alarms. It is just enough to set the special adjustment
DEBUG OUTPUT to Level 11. Then the steering system works without these alarms
and the service can take longer time to analyze the system and to catch the fault.
Together with this possibility DEBUG OUTPUT provides many other special
functions (that are described in paragraph 12.4.6.4). For example it is possible to
use the hand set to read the voltage from the second twin pot wiper (CPOC2 on
CNA#8) on the reading SET POINT POT of the hand set. It is just enough to turn
DEBUG OUTPUT to level 13.
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Don’t forget to turn DEBUG OUTPUT to Level 15 after finished the test.