Fig. 11: Position Feedback Device "1" Signal Flow - Curtis 1222 Manual

3 — PROGRAMMABLE PARAMETERS: Position Feedback
PARAMETER
Encoder3 Counts/Degree 10.0 – 1000.0
0x40C7 0x00
Encoder4 Counts/Degree
0x40C8 0x00
Swap Encoder3 Direction
0x4014 0x00
Swap Encoder4 Direction
0x4068 0x00
Auto Center Type
0x407D 0x00
Center Offset (deg)
-180.0° – 180.0°
0x4018 0x00 -32768 – 32767
Fig. 11
Position Feedback Device "1" signal flow (Encoder 3 shown; Encoder 4 is similar).
38
2 9 J A N U A R Y 2 0 1 3 D R A F T
POSITION FEEDBACK DEVICE 1 – ENCODER3 and 4
ALLOWABLE
RANGE
n
•
Defines the number of Encoder 3 counts (pulses × 4) per degree of
100 – 10000 wheel position. Encoder3 Counts/Degree is always a positive number.
n
•
0.5 – 1000.0 Defines the number of Encoder 4 counts (pulses × 4) per degree of
5 – 10000 wheel position. Encoder4 Counts/Degree is always a positive number.
than for Encoder3 Counts/Degree. This allows the Encoder 4 sensor to
use the steering gear rather than being a sensor pickup on the motor.
n
•
On / Off Changes the direction of the Encoder 3 steer position feedback.
On / Off
n
•
On / Off Changes the direction of the Encoder 4 steer position feedback.
On / Off
0 – 1 Defines which event will trigger the controller to center
0 – 1 the steered wheel.
The Center Offset is the difference between the zero position (center)
for the application and the home reference position (found during
homing). During homing, the home position is found and once the
homing is completed the zero position is offset from the home
position by adding the Center Offset to the home position. All
subsequent absolute moves shall be taken relative to this new zero
position, including Auto Center. If the home switch is at the same
position as center, set Center Offset to zero.
Parameters
DESCRIPTION
Note that a lower range is provided for Encoder4 Counts/Degree
0 = Auto Center after homing.
1 = Auto Center after homing and every interlock.
+ +
- -
Curtis 1222 Manual,
os 15