Description

zapi eps-ac0 set option parameters

1) HOUR COUNTER

This option specifies the hour counter mode. It can be set one of two:

– RUNNING: The counter registers travel time only.

– KEY ON: The counter registers when the “key” switch is closed.

2) MICRO CHECK

This option is useful to support debug and troubleshooting. It makes possible to

inhibit the supervisor (Slave uC) operations and allows the system to run with

just the Main uC. When entering this operating mode the safety contacts stay

open. Therefore, traction shall be disabled. It can be set one of two:

– PRESENT: Default setting: enable the operations of the supervisor (Slave uC).

– ABSENT: Disable the operations of the supervisor (Slave uC). The safety contacts stay opened.

3) FEEDBACK DEVICE

This option specifies which kind of Feedback Sensor is adopted. Here is thefeedback sensor list:

– OPTION #1: FB POT only.

The only feedback sensor is the potentiometer at the steered

wheel. This setting must be temporary chosen for the set-up

of the FB ENC & FB POT configuration (see below). After

the set-up is ended, it is necessary to turn FEEDBACK

DEVICE to OPTION #2 to get the steer working with FB ENC& FB POT.

– OPTION #2: FB POT & FB ENC.

This is the right setting when the encoder is chosen together

with the FB POT. Pay attention, the set-up must be done

with the FEEDBACK DEVICE to OPTION #1. When the set

up is finished, turn to OPTION #2. When the FEEDBACK

DEVICE is OPTION #2 an automatic centering is always carried out at key-on.

– OPTION #3: FB POT & FB ENC & ONE TOGGLE SWITCH

This is the right setting when the encoder is chosen together

with the FB POT and a straight ahead toggle switch (SW1).

Pay attention, the set-up must be done with the FEEDBACK

DEVICE to OPTION #1. When the set-up is finished, turn to

OPTION #3. When the FEEDBACK DEVICE is OPTION #3

an automatic centering is always carried out at key-on.

– OPTION #4: FB ENC & ONE (or TWO) TOGGLE SWITCHES

This is the right setting when the FB POT is not present and

two toggle switches are adopted (normally in the straight and

90 degrees angled positions of the steered wheel). At key

on, an Automatic Centering operation is executed seeking

the Toggle Switch signal (SW1 on CNA#3). When the Toggle

Switch edge is met the Encoder counter is zeroed. The 2nd

Switch (SW2 on CNA#2) is used to verify the encoder

counter at 90° is matched with the SW2 transition.

4) LIMIT DEVICE

(Versions with FEEDBACK DEVICE to OPTION #1, 2, 3 only). When this option

is set ON, the steered wheel angle will be limited using the feedback sensor

value. It can be set one of two:

– ON: When the feedback sensor overtakes either the CW or the

CCW limit (see 12.4.2.13-14, SET MAX FB POT, SET MIN

FB POT), the steered wheel angle shall be automatically limited.

– OFF: No steered wheel angle limitation, based on the feedback sensor value, occurs.

Note: the configurations without toggle switches (FB POT only and FB POT &

FB ENC) may use the switches connected to CNA#3 and CNA#2 as CW and

CCW limiting requests. Then, the limitation through the feedback device and the

limitation through the limiting switches are processed with an OR Logic.

5) AUTOCENTERING

(Versions with FEEDBACK DEVICE to OPTION #4 only). When this option is

set ON, the controller performs an automatic centering at key-on and enables

the function to operate an automatic centering on demand. Set

AUTOCENTERING to OFF if the automatic centering function is not required.

6) DIRECTION GAUGE

Not used.

7) AUX FUNCTION 1

This option sets the steering mode after the feedback sensor has reached the

commanded position (it is used only in closed loop configurations (i.e. RTC and

automatic centering)). It can be set one of three:

– LEVEL 0: The steering control is always active when a travel demand

is active. The steer control is turned off when the travel

demands are deactivated (after a 3 sec delay).

– LEVEL 1: The steering control is alternatively turned off (15 secs long

plus the AUXILIARY TIME) and on (3 secs long).

– LEVEL 2: The steering control is alternatively turned off (15 secs long

plus the AUXILIARY TIME) and on (3 secs long) but only when a travel demand is active.

AUXILIARY TIME is the delay (in secs) the DC standing current takes to arriveto 0 (see 12.4.4.11).

8) DIAG MOTOR TEMP

This option enables the diagnosis of the motor temperature. When it is set On

and the motor temperature overtakes 150°, a MOTOR TEMPERAT alarm occurs.

The KTY84-130 motor thermal sensor must be connected between CNB#3 and a minus battery (CNA#13).

9) AUX FUNCTION 11

(only when FEEDBACK DEVICE is OPTION #4). Option AUX FUNCTION 11

specifies the number of toggle switches (one or two) and defines the

correspondence between the levels of the toggle switches and the steer sector (quadrant).

Set AUX FUNCTION 11 to the proper Level following table 10-1 (see 10.4). The

proper level must be meant as the one meeting the configuration of the toggle

switches in the first sector (WHEEL ANGLE between 0 and 90 degrees).

10) ENCODER CONTROL

This option specifies if the motor is controlled via encoder or completely

sensorless. Normally it is set OFF. When glitches are heard from the motor, it is

necessary to turn to a sensored control. In this case set ENCODER CONTROL

to On. Then, take care the encoder resolution used in the software (see 4.5.3) is

matched with the actual encoder resolution.

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